Stroker Kits...

[2000Si]

I know stroker kits aren't really well received on some Civic boards... but I thought I'd ask.

I'm not looking to do this persay. But I've always wanted to build an engine.

I was browsing the internet earlier looking at stroker kits. Crower sells a kit for the b16 that ups your bore to 87mm and stroke to 89mm which makes a 1.6 a 2.12L engine.

How reliable would that kind of boring/stroking be if balanced and built correctly by a reputable shop?

According to c-speeds comp. calculator (I know it's not entirely accurate) it'd give it a 9.8:1 compression +/- a few.

With the proper management and the proper engine buildup, how reliable would this be on a low boost (7-9) psi turbo setup? I'd wonder if the cylinder walls would be too thin to even support any kind of boosting.

and yeah i know I could start with a b20 and do a vtec conversion... blah blah. I'm asking about a b16, just because.

Tell me what ya think.

[steronz]

search honda-tech for "tech43". the guy's business kinda went under, and he fucked over a lot of people, but he was selling a reasonably well designed kit for the b16 that used an LS crank and rods that would up displacement to about 2.0L with an 85mm or 86mm bore. It should be very similar to the crower kit, which I haven't read a whole lot about. The bottom line is that the piston has to be shortened so much to compensate for the 89mm stroke and low deck height that it wobbles too much and the rings can't really seat properly. most tech43 owners went through about a quart of oil every 300 miles. It's a sweet idea given the relative size and low cost of b16 short blocks, but there's really no advantage over building an LS block with an 87mm bore and a stock crank... same displacement, but the piston is a normal size and it won't burn oil for a living.

[Calesta]

Plus a guy I know that's running the Crower setup in his B16 loves it for the drag strip- but hates it everywhere else. He goes through a set of pistons every few thousand miles.

[2000Si]

<div class='quotetop'>QUOTE(steronz @ Dec 18 2005, 08:44 AM) [snapback]97885[/snapback]</div>

search honda-tech for "tech43". the guy's business kinda went under, and he fucked over a lot of people, but he was selling a reasonably well designed kit for the b16 that used an LS crank and rods that would up displacement to about 2.0L with an 85mm or 86mm bore. It should be very similar to the crower kit, which I haven't read a whole lot about. The bottom line is that the piston has to be shortened so much to compensate for the 89mm stroke and low deck height that it wobbles too much and the rings can't really seat properly. most tech43 owners went through about a quart of oil every 300 miles. It's a sweet idea given the relative size and low cost of b16 short blocks, but there's really no advantage over building an LS block with an 87mm bore and a stock crank... same displacement, but the piston is a normal size and it won't burn oil for a living.
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<div class='quotetop'>QUOTE(Calesta @ Dec 18 2005, 10:45 AM) [snapback]97887[/snapback]</div>

Plus a guy I know that's running the Crower setup in his B16 loves it for the drag strip- but hates it everywhere else. He goes through a set of pistons every few thousand miles.
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Thanks guys, those are the reliability issues I was lookin for.

[Calesta]

No problem. I forgot to mention- the guy I was talking about works at Intercrew, runs 10s on his car, and it's a dedicated drag race only car too. He'll continue to run the crazy pistons, but he doesn't use it as a daily driver.

My Endyn Rollerwave raised pin pistons only lasted 3000 miles too, so that's one more experience- and one other person whose car was diagnosed by Intercrew but built somewhere else with a different machine shop but using the same pistons (so same parts, totally different builder) had the same engine death as me.

That'll give you more direct experience from people that have actually played with high pin pistons. Mine weren't really that high up- but the stroker kits will be quite a bit more exaggerated. I don't think that my pistons and the stroker kit pistons failed because of the same reason though- mine died because of an incorrect spec from the piston designer *cough*....

[2000Si]

I think my next car will be a VX trim EG with a built CR/VTEC running an intercooled 60-ish trim T3 on either an GSR S80 or Si S4C 5 speed. I like B series. The one thing that no one can ever agree on is whether or not an H22 destroys the weight balance of a light car or not. So I'll just shy away from it.


I pretty much gave away my plans if the Si ever gets wrecked or stolen.

[dubcac]

The H22 does not destroy the weight balance. I've driven an H22 hatch, and it felt fine...and I've also had friends that roadraced/autox'd H22 hatches and did damn well. As for the stroker kit, I wouldn't do one on boost. I've heard of vibration problems with that large of a stroke + boost. I'd rather keep the OEM internal geometry and revvability. You'd be better off getting a b20 block than stroking the b16.