8.0:1 Pistons

Does any one know what 8.0:1 pistons do that the stock ones don't? Does it mean I can boost higher?

Not sure, however this is the first time I saw your signature... That is great!!! I Love it.

8.0:1 CR pistons will allow you to run more boost without having to run race gas. it also keeps the heat down.

also, most likely, they are forged which makes them able to handle more punishment.

I will be getting my gst back this week aftr getting the engine rebuilt. How long should I break it in and put a mbc on it. Also how much crank hp will the stock clutch hold? I want to run like 13 or 14 lbs but I don't want the clutch to be slipping.

my mods are
type s bov
3' tusudo exhaust turbo back
injen intake
geddy intercooler piping
16g turbo

most places will tell you to do a 1000 mile break-in period with a new engine build. there are a couple of things that you need to do during this period.

you should let the engine run for about 20 mins, changed the oil, 200 miles, change the oil, 200 miles, change the oil, and give it a lil boost, about 4-5 psi, another 300 miles, change the oil, then beat the piss out of it. you should try to stay out of boost for the first 500 miles or so.

also, do a compression test before you start adding boost.

when you are driving, don't just stay at one constant RPM. you need to put different loads on the engine. and it is ok to hit 4k RPMs occasionally. it will help seat the piston rings. but don't do it that often in the beginning.

your clutch should be fine for a while with that amount of boost.

99clipsgst <------


where did you buy your pistons from? and did you put a new crank in and have it balanced? and did u bored out the motor?

I got the engine rebuilt kit from slowboy racing. I kept everything stock but you can get the kit in 3 diffrent sizes.

Let me know how it works out. if it works out good ill check it out.

Slowboy is a good place I hear alot of good things about them

the kit hes talking about is way too cheap. i dont trust the kit

The kit is not cheap try $600 plus shipping. I have had not problems w/ anything not leaks and holds higher boost better.

Your stock clutch will slip with 300. Sometimes less than that. 300 is the max.

quote:

ORIGINAL: Sebba
The kit is not cheap try $600 plus shipping. I have had not problems w/ anything not leaks and holds higher boost better.

that is cheap for a engine rebuild kit that gives you all that stuff. just JE PISTONS alone are like 750

Did you even look at the site? It never says JE pistons. here is what my kit came with Top Line basic engine rebuild kit The kit includes: • 8.0:1 4G63 pistons • Rod bearings • Mains • B/S Bearing • Freeze plugs • 4G63 Timing Belt • 4G63 B/S Belt • Full Engine Gasket Set • Front case cover • Oil pump gears Please specify what bearing used in the rebuild kit: Standard, 10 over, 20 over. Also please specify what pistons are used: Standard, 20 over, 40 over.

Slowboy also gave me a cosmetic head gasket for 60 buck too. shipping was fast.

your not getting what im saying. im saying if you just gonna buy some je pistons alone it gonna cost more than that kit. So thats why i said its cheap. look at all the stuff you got for 600 bucks.

Ya but the stock pistons are good up to 400 hp and I dont think he is looking to rule the world with his car. So in that case for 600 bucks, you get a lowe compression with a stong ring seal, new bearings, hg, oil pump... thats the corn right there, a re ring kit alone is 300 bucks... and that only comes with the rings, head gasket and other misc crap that you need.