olly-civic

its:
T3/T4 Hybrid

T04e Stage III Wheel

.50 a/r
.63 Exhaust

b16ahybrid

Here's my .02 cents.
I wouldn't recomend lowering your compression that much. I have a turbo thats close to the one your using but mines a .57 trim w/.63 a/r.
If your looking to make 300whp it's going to take about 13psi with an agressive tune. Thats with stock compression. I'm making about 280whp with a mild tune, stock compression, and 13psi.
That turbo will compliment your set-up nicely, but I would honestly keep the compression higher then 8.5:1.

olly-civic

so you think the 9.0:1 would be better?

westcoaststyle

I say go 9.5. No way go 8.5:1.

Those injectors are not very well priced. Check it out: http://www.wiredspeed.com/itemdesc.a...%2D550&eq=&Tp=

BoostedITR41

compression has nothing to do with spool up guys it is all gearing. the flow of other parts other than the turbo will be what makes power it isn't all boost.

300BHP you should need no more than a bar of boost ona good tune.

b16ahybrid

I'm not talking about spool-up, Spool with that turbo will not be a probem.
It's going to take him more boost to make the same amount of hp. running 8.5:1 compression with an agressive tune will require about 16psi of boost. Now if he were to bump the compression to 9.5:1 or even 10.0:1 with the same tune it's going to take about 12-13psi of boost. Why do I even mention that, well without looking at that specific turbo's flow chart, I believe that turbo's peak isnt that high. Once you cross the turbo's peak it's your going to start to introduce more and more heat into the boost charge.
So whats better running more boost with higher heat or running lower boost with less heat and making the same power.
Like I said before, i'm running a simular turbo, inorder to reach my goal of about 400whp it's going to take a higher static compression to keep the turbo close to it's peak efficiency. And yes compression does effect the final outcome. Nobody is mentioning spool-up, not sure why your stuck on that.

olly-civic

i carnt do a 10:1 it wouldnt be right in the back of my head!!!
im getting the pistons on friday iv gone for the 9.5:1, iv also been offered a aquamist water/methanol injection kit, the pupme gas over here has a 98 octane rating, am i correct in saying that with the water/methanol mix being injected the octane would be higher or am i on the rong track???

also any thoughts on that intake manifold i found??? is it worth it?

b16ahybrid

I'm running 10.2:1 compression w/almost 1 bar of boost (13-14psi) runs like a champ. Bone stock and it's making about 280whp.
Don't run more octane then you need, running 98 octane isn't going to be required for your set-up. If your only looking for about 300hp then 92 octane will be more then enough.

westcoaststyle

I agree. In CO we have 91 and that's all I run. I've never put race gas in it...

The injection system would be cool, but overkill for what you want to do. I'm interested in an injection kit, but I really need to know more about it before I commit.

olly-civic

u carnt get 92 in the uk its 95 or 98, thats all you can get.....