To Sleeve or Not to Sleeve?

ohsoJDM

New Member
I have a 99 gsr and I want to get a Brian Crower Stroker kit and eventually turbo it. Im looking to produce anywhere from 300 to 350 hp. Im not too familiar with common practice when it comes to sleeving and when its necessary or not. Thanks for the information also if anyone has a good set up to produce that kind of power that would be appreciated as well, thanks again
 

dc2GS-R

Super Moderator
Stroking it is not even nearly necessary to achieve those power levels. But if you want to do it, eh, your choice. I would sleeve it since everything will be torn apart anyway, so you might as well. Plus the long stroke, short rod combination puts much more stress and side loads on the pistons and cylinder walls. Combine that with boost and you end up stressing the cylinder walls more than your power output implies. I say do it, better say than sorry
 

heykosal

Angkorian
Like said before, it isn't absolutely necessary for your power goals but better safe than have your motor blow up, and be sorry.

Like Winki said, right or twice.
 

Spody02

Name: Cody
i would say no
not for those numbers
you can make that much with a nice turbo setup on a stock gsr
been done penalty of times before
i dont know, if you got the money
but there is guys making like 400-500ish on stock sleeves
 


dc2GS-R

Super Moderator
True, but if he is going to stroke it then that adds lots of force to the cylinder walls. Stroking an engine throws the rod ratio to shit. It pushes much harder on the cylinder walls with the long stroke and short rods.

I agree, it is plenty possible to get away with running no sleeves. But if you are going to tear the engine all the way down to build it then why not spend the extra money to do it right. Again, it's not an absolute necessity, but extra insurance against problems is a great thing to have, especially if you're still wanting to boost and stroke an open deck engine
 

Spody02

Name: Cody
i think instead of stroking your motor, you should just get sleeves
much less money and enough to get you to your power goals
 

patrick4588

Integra God
dc2GS-R said:
True, but if he is going to stroke it then that adds lots of force to the cylinder walls. Stroking an engine throws the rod ratio to shit. It pushes much harder on the cylinder walls with the long stroke and short rods.

I agree, it is plenty possible to get away with running no sleeves. But if you are going to tear the engine all the way down to build it then why not spend the extra money to do it right. Again, it's not an absolute necessity, but extra insurance against problems is a great thing to have, especially if you're still wanting to boost and stroke an open deck engine
Click to expand...
best post ever
 

theshodan

Turbo Design Specialist
patrick4588 said:
best post ever
Click to expand...

Indeed. Sleeving would not be necessary if the stock bore / stroke is used. You can even do an LS crank for the longer stroke, and save yourself from paying BC your money. Sleeving is used based upon power level and purpose. The turbo blocks I used are sleeved for road racing purposes even though it is at about 295-450whp (depending upon the track used). At these high lengths of time at high speed and heat, the sleeving (and subsequent tune) are needed. For a street car, the tuning is more of an important aspect, as well as a good change of internals, but sleeving isn't as necessary as long as the internals have been changed.

For that HP level, I don't see the need to give BC the cash. IT can be done without all that.
 

speedin

The Transporter
I vote, dont stroke it, but put in sleves, pistons, and rods. You will also be able to aim more in the 400whp range.
 
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