Not sure which head gasket i should put on the car or if i should even bother. Right now im only pushing 7lbs of boost wanna push up to 10lbs. or should i just go with a water meth injection kit?

 

Is that really needed?? Im pushing 10lbs i hope i dont need that

 

dont think its needed with low boost but wanna get other peoples views and opinions on it

 

You may get more opinions trying this topic in the Forced Induction forum.

There aren't too many boosted S2K's in the UMW whose owners post regularly here.

I can PM you a list of a handful of locals that may bounce their opinions off to you.

 

ya i posted it here cause i want peoples opinions from the area ya know especially since this is where i do all my posting i dont wanna post somewhere that i never post in.

 

I never boosted my S2000, but I did a TON of research on the topic. It seems like 10lbs is considered about the limit of the stock internals. To go beyond that you need to lower the compression, and a thicker head gasket will accomplish that.

Meth injection does a few things, it will cool the charge (giving more air) and helps to prevent detonation. It isn't really a replacement for lowering the compression ratio, it's a way of getting more power out of what you have. The concern with Meth is that if you tune for it, and the system fails (you run out of meth, the pump fails, you spring a leak, etc) you could start detonating and dammage the engine.

If I were in your situation, I would consider a meth kit, but would tune without it in the mix. Then added in the meth wouldn't net you every possible gain, but you would notice a difference when running it. That way you would still be "safe" when you aren't using the meth.

I wouldn't worry about a head gasket unless you plan to exceed 10lbs. And i don't think I'd exceed 10lbs with a supercharger. You start to run into issues with the belt driving a pulley that small.

 

oh i dont have a supercharger i got a turbo, i guess i will just keep saving for now. Thanks for the post ruexp67

 

I've also done a great deal of research on this for the past 4 years. Luder brought up a great point about posting in the FI forums. In the past month I have done a decent amount of reasearch on this very question you posed.

The stock block is very strong and if you plan on wanting to run more boost (15,20,30psi), then I am sure your block can handle it with a stock headgasket. The max hp on stock block and stock headgasket is in the 700's last I heard. It may be wise to upgrade your retainers to AP2 retainers and your banjo bolts to 4 hole instead of two hole, that is if you have not already accomplished this. I guess that would not make it a stock block. Boosting a stock block all comes down to the tune. If you have the correct tune then you should be able to push your kit to the limit.

So to wrap this up. The stock block can handle alot of psi. There has been no mechanical faliures that are related to how the engine is built. Failures come with not enough fuel, boost spike, or oil pressure. So with the PROPER TUNE you can turn that psi way up, but now you have to worry about the tranny and diff.

Banjo bolts are a debated topic. My opinion is you should change them but I would like to hear other peoples opinion. The banjo bolts in my 00 appear to have destroyed my cylinder #4.

AP1 to AP2 Retainers --- https://www.s2ki.com/forums/index.ph...ic=749003&st=0

Stock block strength --- https://www.s2ki.com/forums/index.php?showt...&#entry16481777

Banjo bolts is a debated topic. My opinion is you should change them but I would like to hear other peoples opinion. They cost me two motors now with the 00 banjo bolts.

 

what turbo do you have?

 

precision a/r 63