JHS Racing SV1k mods

[jhsracing]

We have over the last 2 weeks been working on some R&D for a number of company’s regarding parts for the sv1000.
We have built a full 2into 1 system for M4 which we have dynoed to produce 10bhp at the wheel from a stock machine we have also got air filter's available from pipercross, we are also working on a range of cams profiles and retard eliminators from g-pack as well as our own ignition advancer plus loads of cosmetic items at the moment we have a SV producing 120bhp at the wheel but loads more to come.
Keep an eye on our web site at:
<center><strong><a href="http://www.jhsracing.co.uk">www.jhsracing.co.uk</a></strong></center>

j.Holland

[TLRMan]

Question reguarding 2 into 1 system....So you got 120 to the rear wheel...
What does the midrange power/torque look like? Any drastic dips or are you able to get better than stock performane outta it?
Just curious.... ^_^

[SpankMe]

I would certainly like to know what mods you did to get 120hp, and a guesstimate on how much you think it would cost to buy all these mods.

[Schneegz]

120HP at the wheel?! Holy crap! What kind of torque are we talking about here? Does it come with a free case of donuts with which to bribe cops?

ps: Are donut-munching, coffee swilling law enforcement officers a purely American phenomenon?

[jhsracing]

Right , here is a copy of a dyno graph for the stock machine with the 2 into 1 system fitted no air filter or fueling mods done yet.
The dip in the mid range has been traced to two items the clutch drive cam slipping on power ups (this you will feel on the road).
Plus the bike is running well lean ,infact the fuel air is running off the scale , this can be rectified with the fitment of an air filter (free flow type) ie pipercross. And of course adjusting the fuel via a teka box as power commanders are not required to adjust fueling on suzuki's. Add with these items an ignition advancer and some cams you are looking at 120bhp at the wheel.
Costing's are as follows.
<table border="0" cellspacing="0" cellpadding="2" width="674"> <tr> <td width="133"></td> <td width="184"><font face="Verdana" size="3">Pipe m4 alloy can</font></td> <td width="148"><font face="Verdana" size="3"> £549.00</font></td> <td width="87"><font face="Verdana" size="3"> titanium&nbsp;</font></td> <td width="92"><font face="Verdana" size="3">&nbsp; £649.00</font></td> </tr> <tr> <td width="133"></td> <td width="184"><font face="Verdana" size="3">Pipercross air filter</font></td> <td width="148"><font face="Verdana" size="3">£49.00</font></td> <td width="87"></td> <td width="92"></td> </tr> <tr> <td width="133"></td> <td width="184"><font face="Verdana" size="3">advancer&nbsp;</font></td> <td width="148"><font face="Verdana" size="3"> £20.00</font></td> <td width="87"></td> <td width="92"></td> </tr> <tr> <td width="133"></td> <td width="184"><font face="Verdana" size="3">Stage 1 cams</font></td> <td width="148"><font face="Verdana" size="3"> £375.00</font></td> <td width="87"></td> <td width="92"></td> </tr> <tr> <td width="668" colspan="5"> <p align="center"><font face="Verdana" size="3">All plus fitting</font></td> </tr> <tr> <td width="133"><font face="Verdana" size="3">We also have</font></td> <td width="184"><font face="Verdana" size="3"> G-PACKS</font></td> <td width="148"><font face="Verdana" size="3"> £99.00</font></td> <td width="87"></td> <td width="92"></td> </tr></table>
All this is just a taste of whats on offer.

<center><img src="/images/SV1000_2into1.gif"></center>

[TLRMan]

How about Compression increase?
Adding cams with more duration is gonna lighten you up...
Squish band clearance down to .9mm? What do you think?
Or just go with high comp pistons...I like nice and tight squishbands, to transfer heat better, and get the velocity up.

Intake ports? I know there was a problem with the TLR's being too big, but since the valve diameter reduction, has the intake runners changed geometry?
I'm not a big fan of 2 into 1 exhaust systems on big twins, unless you are tuning for a "Target" RPM....

And have you seen the new PCIII USB? I think it's better than ever.....

Just curious questions.....You should see better than 127hp and 78 ft/lbs torque

[fugaziiv]

umm, wow...

[SpankMe]

Dyno chart added.

[TLRMan]

Don't like that dip I'm seeing......
Check out this one....
This bike also has the airbox mods, BMC airfilter, Lighter wheels, and 520 chain kit.

127.5 @ 75.2

[TLRMan]

This is a 3D map of the Powercommander corrections.

[jimbo77]

JHSRacing

Whats causing the big dip in both BHP and Torque right at about 5500 rpm? I see it is there in both the stock dyno run and with the mods, but looks like it is more pronounced with the mods. Is this in the ECU programming? One would think an F/I remap could pull out most of that dip. It looks like something you would see on a Honda with the HTEV or on the Yamaha with an EXUP. ...

[jhsracing]

What i am showing you is the first tuning mods to the sv1000 Not TL1000 tuning if we are to discuss TL's i will pull up graph's for this model of machine.
The graph i have shown you is a stock sv1000 and the other with the fitst generation 2into1 system which we are developing . As i have already said, no other tuning has taken place, but please do remmber that as yet there is no power commander avaliable, the air filter will be about 2 weeks so now i will start to tune the fueling via a factory teka box.
jh

[jimbo77]

jhsracing

So, without any F/I mods, what do you think is causing the dip at 5500 rpm. Is the engine "coming on the pipe" as they say in the two-stroke world? Or do you think it is just a more pronounced effect of the factory fuel map with the new flow of the exhaust... I realize everything is just in development, but I'm a curious individual... :rolleyes:

[jhsracing]

Now spent more time in the dyno room and we think that the dip is being causing by the standard setting, we have had some problems correcting it using the teka box as the sv1000 use's a 32bit system and the TL's use a 16bit system a;lso due to the extra butterfly valves we are experiancing diffaculty in setting up a fuel map.
more info to follow.
jh

[TLRMan]

Here's the correction the PCIII will do to the Stock ECU to get things back in order...All I can say is that The US Model runs Very lean!

[jimbo77]

Ahhhh... I wasn't even thinking about the extra set of butterfly valves... That makes a lot of sense for the dip. That rpm range is just about where the engine really starts pulling (and pushing) some airflow. The throttle bodies are probably breaking onto the main butterflies at that point...I think :unsure:

[TLRMan]

If anything it's the reverse....The Servo controlled butterfly valves "Keep" the air velocity up, so we shouldn't see any flat spots or dips....Unless the FI is off, it should run flawlessly.

But after seeing the fuel map corrections, I know that those butterflys have a precise position to be in, or all will be lost. The bike is set to run lean from the factory to meet emissions. I bet there is a different map for bikes across the pond. We will see what happens when the PCIII USB arrives, and we hook it up.

I know there is at least a 5 horse gain waiting to be released.

[Schneegz]

TLRMan:

So, bikes shipped to the States are set to run lean. Is that why people over here seem to be getting better gas mileage than our friends everywhere else?

Also, why do you suppose dyno runs by US mags have shown so much more Hp and torque than British mags if our bikes are set up so lean? US mags are all reporting 105Hp+ (I just saw another one report 107.7Hp) with no mods. The British mags are reporting 102Hp-. Strange, isn't it?

[TLRMan]

Some countries in Europe are restricted to 100 HP..so they will show less.
I know the SV's stateside are corked up pretty good....But once the PCIII comes out, that'll change....

You check out the new Sv650's? bigger exh. valves and some more duration on the cams...I saw 71 hp on one article...

One of the sneakys was to put an Intake cam on the exhaust side, and dial it in to @40 deg BBDC at .040" lift.

[jimbo77]

TLRMan

Do you think it's going to take a PC III to uncork our SV's? Will the Yosh RF tool work? I imagine the problem will be exagerated even more with aftermarket cans; even a small increase in air flow will lean it out even more. The Suzuki ECU can't detect and correct that increased flow, can it? I mean for bolt-ons...

[TLRMan]

I haven't researched the Yosh tool, but I know the PCIII works...
As for getting better response from the SV in stock trim, the Map for the stock SV shows lots of fuel enrichment with the exception of a small lean dip at a lower rpm.

If you go with Slip ons, and not change the intake side, you prolly can get away with it without remapping, but I would get that badboy on the Dynojet 250, with exh analyzer and verify that the Stock map for the PCIII is correct. The technology is out there.... Costs ya a couple hundred bucks, but well worth it.

[jimbo77]

TLRMan,

I see that Dynojet has base maps available for the PC III, but I haven't seen anyone who actually has one available as yet. Any ideas?

[TLRMan]

Originally posted by jimbo77@2nd June 2003, 11:39 AM<br /><br /> TLRMan,

I see that Dynojet has base maps available for the PC III, but I haven't seen anyone who actually has one available as yet. Any ideas?
I haven't seen any PCIII's out either...
The 3D map I posted was the base map for the SV1K.
Only thing I can think of right now, is to put your Airtemp sensor in a bucket of Ice!

[drmudd]

Base dyno run results.

[moz]

98.8 ? That doesn't sound right mate :(
Was the bike totally stock?
And, Was it run in by the book?

easy now,
moz.

[TLRMan]

Originally posted by moz@1st July 2003, 03:00 PM<br /><br /> 98.8 ? That doesn't sound right mate :(
Was the bike totally stock?
And, Was it run in by the book?

easy now,
moz.
This is finally a USA model on the roller. I was curious to see what was offered without the O2 sensor in place.
There could be limiting factors as we don't know if this map was corrected atmospherically or not either...Just a difference in a couple of pounds of air pressure in the tires, will reveal different results.

[flipper]

My runs show 108.5 and the dip in the mid range is no where near as pronounced. That's a big dip right where you don't need it.
Re. G pack that's a serious amount of money for a 6p resister!!!!!!!!!!!

[flipper]

Originally posted by jhsracing@31st May 2003, 08:59 AM<br /><br /> What i am showing you is the first tuning mods to the sv1000 Not TL1000 tuning if we are to discuss TL's i will pull up graph's for this model of machine.
The graph i have shown you is a stock sv1000 and the other with the fitst generation 2into1 system which we are developing . As i have already said, no other tuning has taken place, but please do remmber that as yet there is no power commander avaliable, the air filter will be about 2 weeks so now i will start to tune the fueling via a factory teka box.
jh
Just curious, TLR I've been doing alot of reading up on the 2 into 1 since this is my first V and so far JHS is the only one endorsing them. My own dyno man is a great believer in the PC and very sceptical about IGN. advacers and such like for road bikes he says he has seen a lot of Suzuki's in particular with these mods and reckons there's very little gain to be had (bang for buck). I noted myself that HRC even reverted back to 2 into 2 because of the trade off in the mid range with the 2 into 1. I'm just sectical myself because of the clearance problems on the left side of the bike makes a 2 into 1 the easy option rather than necessarily the best option. What are your thoughts? I know when you refer to the TL you are not comparing apples with apples but surely the motors can't be that far apart?

[flipper]

Not to mention a 2 into 1 is going to make the thou look like a 650..........no disrespect intended but I don't want my thou looking like half a bike :angry:

Just thinking what are your thoughts on this Jorge? I know you don't like to blatantly advertise on the board but would appreciate you input.

[drmudd]

<DIV><FONT face=Arial size=2>The dyno guy seem competent we corrected for elev. 5800ft.! Tire pressure 34psi. Horsepower reading is maybe 5hp on the low side due to uncompensated mass on the roller, magnetic break parts, that&nbsp;Dynojet has yet to provide the software update for.&nbsp;PC3 is on its way and we will continue to play. Will keep you posted. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>The twin exhaust stays, high low I don't know, two into one oh no!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>Maybe just a spare set of stock cans to play with. Dr. Suzuki and Mr. SV </FONT></DIV>

[TLRMan]

Originally posted by drmudd@1st July 2003, 08:45 PM<br /><br /> <DIV><FONT face=Arial size=2>The dyno guy seem competent we corrected for elev. 5800ft.! Tire pressure 34psi. Horsepower reading is maybe 5hp on the low side due to uncompensated mass on the roller, magnetic break parts, that*Dynojet has yet to provide the software update for.*PC3 is on its way and we will continue to play. Will keep you posted. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>*</DIV>
<DIV><FONT face=Arial size=2>The twin exhaust stays, high low I don't know, two into one oh no!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>*</DIV>
<DIV><FONT face=Arial size=2>Maybe just a spare set of stock cans to play with. Dr. Suzuki and Mr. SV </FONT></DIV>
I see your are in the Mountains!
So I'm not too upset about what you got on the roller then..there is another thread running, that I haven't looked at yet, so I'll probably continue there.

FLIPPER!
We have 2 problems with a Big V-Twin running 2 into 1's first is the 270-540 degree firing interval, in order to properly get a helpful scavange from each cylinder creates a plumbing nightmare. The other reason is just pure exhaust gas volume from the cylinders, so.....like HRC did, we will stay with the double cross over duel pipe. I ran into a guy with an RC51 (sp2), and he had the Jardine 2 into 1, sure, it sounded good, but I when it came to 3rd gear roll-ons I killed him!
So, if there is a way to get that left hand pipe clear of the kickstand, you are better off.

Ignition advancers work down low, but hurt top end, tuning the Gixxer 600's we just add advance downstairs and roll it off upstairs. (another good thing about the PCIIIR.)

The TL series engines really aren't that much different. I would expect to see a larger gain with less work with the SV engine...I haven't seen the SV cyl heads yet, but the TLR intake ports are actually too big! Yoshimura used to build up the intake ports to get the velocity up.
This is why I'm quite interested in the SV's heads...so until I get my hands on one to play with ......stay tuned!

[drmudd]

<FONT size=1>It's high <FONT face=Arial>desert, 10000ft mountain near by with great road to the top. Need to fatten mid range.</FONT></FONT>

[flipper]

Thanks TLR, seems to agree with every thing I've read particularly the SP2 story, it falls in with a mate of mine who junked his 2 into 1 for an M4 2 into 2 he said he's much happier now the new pipe makes a world of differance on the road. The JHS advancer looks like a woodruff key type so I assume you get 4 degrees all through the range. If that is so I take it it's going to hurt the top end? Better off waiting for my PC111.

[TLRMan]

Originally posted by flipper@2nd July 2003, 11:08 AM<br /><br /> Thanks TLR, seems to agree with every thing I've read particularly the SP2 story, it falls in with a mate of mine who junked his 2 into 1 for an M4 2 into 2 he said he's much happier now the new pipe makes a world of differance on the road. The JHS advancer looks like a woodruff key type so I assume you get 4 degrees all through the range. If that is so I take it it's going to hurt the top end? Better off waiting for my PC111.
The advancer is the key type, and yes it's 4 degrees advanced all the way up. One thing I was wondering if the PCIII USB does have timing adjustments like the "R" series does on their other units...I don't think it does!

One interesting note is that the TLR's power didn't change even if it was retarded 5 degrees..But we are talking SV's here...

[Powermaster]

Just thinking what are your thoughts on this Jorge? I know you don't like to blatantly advertise on the board but would appreciate you input.
Can not really help here Flipper, JHS and M4 are my competitors and I have to respect them :D

[flipper]

I don't mean to disrespect anyone or encourage you too, but they, just as yourself should be able to stand over the work done so far. As punter's debate helps us to make an informed judgement before we spend our hard earned. This forum gives us a chance we might not otherwise have. Everyone is entitled to their opinion and it's a small man that is going to take offence at others differing views. "Scholars never agree and fools seldom differ".

[TLRMan]

Originally posted by flipper@3rd July 2003, 10:42 AM<br /><br /> I don't mean to disrespect anyone or encourage you too, but they, just as yourself should be able to stand over the work done so far. As punter's debate helps us to make an informed judgement before we spend our hard earned. This forum gives us a chance we might not otherwise have. Everyone is entitled to their opinion and it's a small man that is going to take offence at others differing views. "Scholars never agree and fools seldom differ".
I should also add myself, that the statements I make, are by no means trying to undermine anyone that does this for a living. Dyno graphs and all set aside, it's what the end result is on the street or track, and what you are really going for. I was very fortunate to have opportunities and skills presented to me, and to be able apply these skills. I don't want to sound like a Devil's Advocate, but I find by tossing in a couple of wrenches, usually produces a better product.

I hope Jorge, and the Boys at JHS understand. We are all on the same team, just going for an end result in different ways. I guess I could shoot my mouth off about working with airflow (fluid) dynamics, and how the temperature of the exhaust gasses affect how a pipe will work, but I will leave it up to the pros...

I myself, will not endorse any product on this site, and say you SHOULD buy it. The Dynojet Powercommander works for us, both on the track and street, but it's up to you to make the desision.

JHS was given the job to produce a 2 into 1 pipe for M4, which isn't gonna be an easy job, and I commend them for taking on the task.

Jorge, on the other hand, is working on his own concepts and designs, and I commend him on those.

Maybe they will find something that they can share, and actually benefit from each other, as the team I used to race with, way back when, actually "traded" secrets with another well known team..we both took advantage of it.

I'm here to offer suggestions, and answer questions, and since there are performance product manufactures on this site, it is difficult for them to share what they find during their development, just as I would offer mine to them, if I was in the business.
It is kind of a "Sticky Wicket" of sorts......

All in all, what the majority of most motorcyclists are counting on, are what these fine companies can come up with, to improve the performance of their machines.

But I'll let you into a little secret...Want to have the most original looking SV out there? LEAVE IT STOCK! :P :P :P :P

[flipper]

Originally posted by jhsracing@31st May 2003, 08:59 AM<br /><br /> What i am showing you is the first tuning mods to the sv1000 Not TL1000 tuning if we are to discuss TL's i will pull up graph's for this model of machine.
The graph i have shown you is&nbsp; a stock&nbsp; sv1000&nbsp; and the other with the fitst generation 2into1 system which we are developing . As i have already said, no other tuning has taken place, but please do remmber that as yet there is no power commander avaliable, the air filter will be about 2 weeks so now i will start to tune the fueling via a factory teka box.&nbsp;
jh
I sense a bit af hostility here..................the guys seem to be asking legitmate questions, which you seem to ignore for the most part, posting only what suits you. I also note you seem to have no problem using this site to your own ends ie. selling your own products...............I suggest if you can't join these debates in the right spirit ie. we are all enthusiast's here trying to help one another, I understand you not wanting to give away to many trade secrets but this is not a trade forum...........so why not join the fun and do your selling on your own site.

[jimmac66]

Now I find myself in somewhat of a quandry!

I have just ridden the '05 1000 home with a brand-spanking new M4 Carbon Fiber 2 into 1 hanging off the side, complete with PowerCommander PCIIIUSB under the seat and I'm not sure if I've done the right thing. It certainly sounds sweet, well maybe not sweet - more angry! Neighbours are going to love me in the morning :o) The mechanic told me the PCIII was programmed using stock settings, but I'm not sure this is the optimum set-up for the combination of exhaust and such.

All things considered, I'm prepared to stick with the 2 into 1 for now (read: I don't really want to spend any more dosh at this stage!) So I guess what I really need at this point in time is a reliable map to program the PCIII and make sure it's all optimised for the new configuration.

Any help here?

BTW - I'm most appreciative of the input from y'all. I like listening to people that know what they are on about!

All the best.

[Timothy]

Hi, I'm sure there is a place here somewhere that has PCIII set up guides, I'll have a look and see what I can find in a minute.

I've got the M4 titanium and haven't got round to the Powercommander, I'm very temted but I just think the cost is too much!

PS. Is there a Tampa, FL in Australia too? :whistle:

[jimmac66]

Hi, I'm sure there is a place here somewhere that has PCIII set up guides, I'll have a look and see what I can find in a minute.

I've got the M4 titanium and haven't got round to the Powercommander, I'm very temted but I just think the cost is too much!

PS. Is there a Tampa, FL in Australia too? :whistle:

Ah, so you noticed the anomaly? Couldn't find the Northern Ireland flag, so went with the Oz flag instead. Grew up there, so it seemed appropriate. Living in the land of the free is fine too.

See ya.

[spasonatwin]

Hey there,

Check out PC's web site (www.powercommander.com/suppsuzmaps.shtml)... they have maps for various set-ups you can download for free (as well as the accelerator pump feature, which is damn cool). I do believe someone from this site even posted a map there as well (Dadmun, I think). The best thing to do, performance wise, is go to a dynojet center (after you've done something about the airbox/airfilter) and have them tune it for you. But, that costs some pretty serious cash; the best I've been quoted was 185 bucks.

G'luck, either way... and nice choice of bike.............. what color you get? :beer:

[spasonatwin]

Oh! And if TLRMan is listening, could I get your advice on something...

In March, Dynojet will have the Ignition Module available for the SV1k (see attached image). Is this thing really worth the expense? The bike will eventually see some (mild) head work, and maaaaaybe cams, but would there be a benifit on you traditional Exhaust + Filter + PC3 bike?

Thanks a million :beer:

[jimmac66]

Hey there,

Check out PC's web site (www.powercommander.com/suppsuzmaps.shtml (http://www.powercommander.com/suppsuzmaps.shtml))... they have maps for various set-ups you can download for free (as well as the accelerator pump feature, which is damn cool). I do believe someone from this site even posted a map there as well (Dadmun, I think). The best thing to do, performance wise, is go to a dynojet center (after you've done something about the airbox/airfilter) and have them tune it for you. But, that costs some pretty serious cash; the best I've been quoted was 185 bucks.

G'luck, either way... and nice choice of bike.............. what color you get? :beer:

Hi,

Got the black model. The carbon fiber can and black givi side bags set it off nicely :niceone:

Thanks for the input. Actually, I had already tried the site - first thing I did when I got home with the new gear! There were some user-submitted maps and numerous standard maps, but none seemed to cater for the particular combination I'm running.

I have also poked around the forum, but all roads seem to lead back to the powercommander web site.

Oh well...off I go to the dynotune center to get it all sorted then. I'll post the new map to the www.powercommander.com website when it's all over for anyone interested.

All the best,
Jim

[Knaapie]

Jim, why not try the mapping of the Yoshimura 3/4 exhaust? That is also a 2 in 1 system and might be quite similar to the M4 system. It's worth a try and I think it will run better than with the mapping you have now. I'm not sure if it's possible to download the mapping you have now to your pc, as a sort of a back-up. That would be handy if the Yosh mapping doesn't seem to work after all. Just my 2 cents. :niceone:

[Knaapie]

Just thought of something else. Here in Holland you can get a free custom mapping if there isn't a PCIII mapping for your bike/exhaust combination yet. You buy the PC, check the PC website for the maps already available. And if there's no mapping for your exhaust you contact the distributor and they make a custom mapping for your bike for free. :D :banana:

Now I'm not sure if that's also the case in the UK or Ireland, but you could give it a try. You can check this link (http://www.powercommander.com/centers_overseas.shtml) for Dynojet Tuning centers in the UK and Ireland. And the link to the UK distributor: http://www.dynojet.co.uk/

[jimmac66]

Just thought of something else. Here in Holland you can get a free custom mapping if there isn't a PCIII mapping for your bike/exhaust combination yet. You buy the PC, check the PC website for the maps already available. And if there's no mapping for your exhaust you contact the distributor and they make a custom mapping for your bike for free. :D :banana:

Now I'm not sure if that's also the case in the UK or Ireland, but you could give it a try. You can check this link (http://www.powercommander.com/centers_overseas.shtml) for Dynojet Tuning centers in the UK and Ireland. And the link to the UK distributor: http://www.dynojet.co.uk/

Thanks for the tips Knaapie. Although I've got the bike booked into the dynotune center on Tuesday to get it mapped - I'll still contact powercommander anyway, just to get a comparison. i may even grab that yoshi 3/4 map now, just for a play.

BTW - the dynotune is only costing me $US75! One of the salesmen at the place I bought the bike hooked me up with a mate of his who works at a dynotune shop. I'll report back with the before and after power/torque charts for all interested.

BTW - are these posts still on subject?

Cheers.
Jim

[Knaapie]

$75 is not to expense. :niceone: Sorry I posted the wrong links man, I thought I read you lived in Ireland. :oops:

[jimmac66]

$75 is not to expense. :niceone: Sorry I posted the wrong links man, I thought I read you lived in Ireland. :oops:

Ah yes, a long time ago. No prob.

BTW - I did upload the yoshi 3/4 map yesterday. Can't say I have noticed much difference yet, but I've only ridden it with a pillion since. I'm taking it out for a solo run this afternoon.

Jim

[Drake]

jimmac66 ,

I'd not worry about your pipe just yet . Some of these race systems were developed for just that . Sometimes the header pipe is too larger for an other wise stock engine .

Take the Vance and Hines 4-1 for a Suzuki Bandit 1200 . It wiill make a bit less power on a stock bike than some other pipes however slip pistons in it , cams and headwork it can make more power than other pipes .

What I'm saying is where there's a will there's a way and Vance and Hines makes varying sized collector reducers that might help add some backpressure for you .

Just takes some fiddling if the owners up to it .

Heck , I am in the midst of deciding which year SV1000S I will buy but already chose and purchased the pipe . It is the Yoshimura 2-1 . Those guys know Suzuki pretty well I'd say and if a 2-1 sucked I kinda think they would have built a different pipe . Now thats not to say the Yosh 2-1 is the better pipe for stock engines though .

I have chose my bike , now need to find it at the best price .... 2005 Black :supsmiley

[Bogus Dave]

Jim in Tampa,

let me know when you're ready to do some real world comparison testing: 2003 vs 2005.

Also, I suggest you join the Tampa Crashers at YahooGroups. We are a mature group of serious riders that enjoys riding at supra legal speeds on the best remote country roads in west central Florida. Several members of this esteemed forum are to be found there. There are group rides almost every Sunday.

Best wishes,
Dave
Bradenton

BogusDave@WEBTV.NET

[jimmac66]

Nice choice of bike, Drake - hope you get it soon ;)

So here's the latest on my situation...

'05 SV1000S + stock filter + M4 full exhaust + PowerCommander III

...just got back from the dynotune shop with an extra 6hp under the tank! A modest, but noticeable increase...quite pleased.

The baseline run isn't shown on the attached chart - which was 110.2hp, but as you can see, we ended up at 116.3hp

It's still a bit flat in the mid range - maybe an after-market air filter?

The contactors for the torque cables were shot, so that's why there's no torque curve. Oh yeah, I learned today that the dyno runs are done in 4th gear - the chart shows 130mph top speed in 4th gear. That's not too shabby.

...and damn it's loud with that M4 exhaust!

All the best...Jim

[Drake]

Thanks for posting this . Kinda needed the torque curve but it sure looks like at 85mph it gets on the cams and takes off ! Is that how it feels when riding it ?

How does the par up with earlier year models run on the same type dyno machine ? It would be nice to see an earlier year model SV ran on the dyno yours was ran on . Just a thought .

I'm rambling ..... I'm going to dig up all the cam specs for the 2003-2005 come hell or hi-water ;)

[jimmac66]

Thanks for posting this . Kinda needed the torque curve but it sure looks like at 85mph it gets on the cams and takes off ! Is that how it feels when riding it ?


Absolutely. I would probably equate that speed to about 7000rpm - that's where the action starts! Funny, I had anticipated the power to increase more proportionally across the rev range, but there is a distinct 'power band', albeit not as pronounced as the two strokes.

Jim

[sakissv]

since you have done so many mods to sv's,i am wondering what are the shim sizes that are going to be needed for the stage 2 cams?

[Drake]

Any news on the 1200cc kit yet ?

I'd like to see what kinda hp a full tilt motor on pump gas will make with big cams n stuff