I figured this was the best place to ask , since this is 100% about the motor and i'm looking to go the all motor route.

I've got a 95 gsr (b18c1) with 70k miles on it. i currently have basics, i/h/e, and the obvious next step was internals,until i looked into a few stroker kits. although most are for b16's, i've found a few for b18's. my initial goal was 200whp n/a, but i figure i can get a stroker kit with the money i have saved for all my internals, and have a new "starting point" and i could then get WELL over 200whp. my question for you is this is a daily driven (except for winter/bad weather days) car, so i want to know what you guys think about my plan. basically stroke it to a 2.0L+ engine. what issues would i run into, and what are the kits i should take a look at. but mainly, what work must be done, by shops and everything, i obviously do not plan on doing this myself.

-vert who's looking for answers

 

For a daily driven car I wouldn't try to stroke the engine too much. You can use an LS crank and sleeve the block to 84mm to get a 2 liter displacement. The engine will make plenty of power (tuned correctly) and will last longer than say a 92 or 95mm crank.

Do a search and you will find a few examples

 

thanks, i'll look into the LS crank/boring it out

bump.

 

92mm crank

wow

never heard of that

only the stock 89mm ls cranks

and aftermarket 95mm cranks


who makes these??

 

I believe Crower has a kit with a 92mm crank. I'd stick to boring to increase displacement, but the option is there just the same.

 

You are correct, Crower does make a 92mm crank.

 

wait, boring is the same as stroking. errr i thought boring will increase hp, but not trq, and stroking will do both.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TimoneX &raquo;</TD></TR><TR><TD CLASS="quote">I believe Crower has a kit with a 92mm crank. I'd stick to boring to increase displacement, but the option is there just the same.</TD></TR></TABLE>

 

Boring is when you make the bore (circle) bigger.

Stroking is when you increase the travel distance of the piston (therfore increasing piston speed)

Both methods will increase hp and tq because you are increasing the discplacement of the engine.

Stroking will allow you to make more power at lower RPM's due to the increased pison speed and efficiency of the set-up.

 

dont go that complex, keep it simple with low cost ... i.e. bore the block to 81.5mm get a set of 81.5mm pistons and aftermarket rods and you'll be happy with that. I've seen close to 150 TW @ wheels and way over 200hp from a 81.5mm bore setup, ls or gsr block is fine. Bump compression and stay away from stroking.

As for the crower 92mm crank, its a nice piece and machined very well.

greg

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Manuel &raquo;</TD></TR><TR><TD CLASS="quote">A stock b18c1 wit ihe makes about 155 to 165 Whp CTR Piston are Sick in B18c1 motor we build a gsr wit Os 81.25 CTR Piston and got 270Psi All A Cross it's a strong street motor </TD></TR></TABLE>

i think i'm going to be boring it out a bit like mentioned, and getting some ~12:1 comp pistons, and some good rods. i want to make around 215 hp eventually, so i figure boring it out abit, 12:1comp, rods, toda cams, full valvetrain, etc.... should get me there. i was just thinking about stroking it for the low end trq gains (somthing all honda guys need and want )

 

...and I say if you're going to tear it all down to a bare block and bore it out then why bother boring it .25mm or even .5mm? That's fine if you have deeply scratched cylinder walls or other damage and just want to get out of it as cheaply as possible, but if you're looking for more real performance that .25mm oversize bore isn't going to do much. You'll need new pistons whether you sleeve it to 85mm or bore it to 81.25mm.