2014 and Up DL1000 100mm Cylinders on an SV1000

wow, you doing nice job, give us more updates how it is going

Just got hands on a set of second hand 2015 DL1000 cylinders and pistons. I want to upgrade my street bike. Can I run the 13:1 JE 100mm pistons on pump gas? We have 95 octane(10% alc.) and 100 octane (5% alc) in my country. I would like to run on 95oct. since 100oct. is not available at all gas stations. Or mabye it is better to use stock DL piston and set squish to 1mm?

jumjum said:

Just got hands on a set of second hand 2015 DL1000 cylinders and pistons. I want to upgrade my street bike. Can I run the 13:1 JE 100mm pistons on pump gas? We have 95 octane(10% alc.) and 100 octane (5% alc) in my country. I would like to run on 95oct. since 100oct. is not available at all gas stations. Or mabye it is better to use stock DL piston and set squish to 1mm?

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You can use the JE, and I have done it. Your octane is rated differently from ours here in the US. We use the average octane number of the research value and the motor values.

I have built SVs with 100mm DL cylinders that have used both pistons with success. Just measure all your values up and taylor the final compression value to your fuel. Consider squish values and total static compression values. Then make choices and mill combinations of head and cylinders to get the best set up for your application.

-ms

jumjum said:

.................in my country....................

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Whereabouts are you ?

I live in Denmark.
I know how to measure the motor and calculate the static CR, but i am not sure how to find out how big a CR i can run safe on 95 octane gas ?

Kristian.

jumjum said:

I live in Denmark.
I know how to measure the motor and calculate the static CR, but i am not sure how to find out how big a CR i can run safe on 95 octane gas ?

Kristian.

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Schmidt314 should be able to answer that....i am clueless on that stuff....

schmidt314 said:

......................Your octane is rated differently from ours here in the US.

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jumjum said:

I live in Denmark.

I know how to measure the motor and calculate the static CR, but i am not sure how to find out how big a CR i can run safe on 95 octane gas ?



Kristian.

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I do not know how your octane is rated. As stated before much different than what I am used to. Measure up your stock compression ratio if needed for reference point.
-ms

Thanks for your inputs..
It seems that EU 95 octane = US 91 oct. and EU 100 oct. = US 95.75
Just received the DL cylinders and pistons today and looking forward to fitting them to bike and measure up with stock piston. At 1mm squish static CR should be 11.72:1 without milling the heads.

Kristian.

jumjum said:

Thanks for your inputs..

It seems that EU 95 octane = US 91 oct. and EU 100 oct. = US 95.75

Just received the DL cylinders and pistons today and looking forward to fitting them to bike and measure up with stock piston. At 1mm squish static CR should be 11.72:1 without milling the heads.



Kristian.

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In the US we only go as high as 92 octane and typically have 87, 89, and 92 at the pump.

On the US 92 octane I can build SV1000 over the 11.7 you mention. You need to make the choice and get the bike tuned to assure you have detonation control either through compression ratio, ignition timing or both.

Cam timing can also impact where you need to be compression wise also.

I typically am not going to spec numbers like this for folks. If I say run X total compression and you blow up an engine, I don’t want that on me since I did not do the engine work myself.

-ms

Mike....you must be at altitude, we have 93 here many places *1200 ASL*

RecoilRob said:

Mike....you must be at altitude, we have 93 here many places *1200 ASL*

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I am right near sea level.
-ms

I’m in the SE USA and we have 87, 91, and 93 at every location I have seen. We don’t have 89 or 92 anywhere.

If I go with new JE pistons in my "old" cylinders, do i need to hone them first? And do I need to break them in i a certain way?

jumjum said:

If I go with new JE pistons in my "old" cylinders, do i need to hone them first? And do I need to break them in i a certain way?

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I would, but you need to make sure to not be aggressive and use proper hone for plated cylinders.

Make sure to measure piston to bore clearance also and make decisions based on that.

-ms

jumjum said:

If I go with new JE pistons in my "old" cylinders, do i need to hone them first? And do I need to break them in i a certain way?

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I assume you are using a set a 31J code head gaskets?
-ms

Yes I will use the 31J stock DL2014 head gasket.
I just made up my mind that I will go with stock piston and not JE 13:1
I measured up my motor and if I ditch the base gasket and use suzuki bond and use DL headgasket i will get 1mm squish and CR of 11.72:1

Thanks again for all inputs

If any of you out there wonder if upgrading your SV1000 03/04 with 05up parts is beneficial.
I swap'd the TBs, snorkel and exhaust camshafts for 05 parts and my 03 bike gain'd 4hp in top end and the low spot at 5-6K rpm was improved by 4hp as well.
I run stock exhaust and PC3 stock program and bike now makes 114,4 RWHP hopfully a little more when DL cylinders are mounted

Kristian.

love these topics, thanks for the information, and some photos are always very appreciated

thanks. the best middle term looks like red.