I didn't say he could get there on pump...just said he could get there without headwork and cams...of course then it'll take some good juice.

My old setup did 530@14psi (stock heads/cams)....figure 18-20psi per lb of boost (I had efficient turbos), so 4 more psi give you just under 600rwhp on 18psi through a 6 speed, with 54mm turbos....never actually dyno'd it at 18psi on pump, but ran lots of people that show it was somewhere in line with those numbers.

So no doubt he'd need racegas (kinda regardless of which setup he chose).

Tom

 

So BC2 cams is what I should look for ?? or will just meth injection take me there ??

Micael

 

Id do both, but obviously if you can only do one, its the cams.

 

I was one of the first people to get a GTM kit ( I think the first in the US to get a stage 5) and it is well thought out and makes good power. The install is a total pain in the *** though and I was missing an assload of parts. Not to mention some of the things didnt fit right (IC brackets, WG dump pipe needed to be modified)

I hate my life every time I have to take the car apart because the 3 pipes on the passenger side are the biggest pain in the as$hole. If I could do it again I would do the 20G simply because it would be much easier to install and the fitment would be alot better

 

If it has to be one...cams for sure....

**** ton more area under the curve is WAY better than a touch more peak anyday.

Tom

 

Thanks guys, I guess I do both then and hope my transmission will hold up
Will my 800cc injectors do it, or will i need 1000cc for 600whp ??

Micael

 

/\/\/\
For 600rwhp 800cc's should be ok....but if you need to order anyway might as well go 1000's (assuming your ecu can control them)

Tom

 

Well I have both 800 and 1000cc, but was planing on selling the 1000cc to partly pay for new injectors for my other engine, so it would be great if the 800cc woud be enough.

Thanks Micael

 

wow I expected that there would be a greater difference than that. hmmm

 

i'd keep the 1000cc's. they will idle fine, you can run lower base fuel pressure, and they will have more headroom.

 

How about some JWT C2 ?? or is BC stage 2 better ??

Micael

 

for small turbos like those, you want the BC3 (or any other 272* cam)

 

BC3 ?? all I have heard so far is BC2 ???
Darn confused right now, what is the main reason for BC3 over BC2 ??

Thanks Micael

 

BC2's vs BC3's difference on an 18G kit is none. Powerbands psi for psi are identical, but the BC2's idle better and dont "require" valvetrain. Do the BC2's...

 

lol, ask alberto for his dynos on BC3 and you'll see why

did you have BC2 before the BC3's alberto?

for a small 18g car that rev's, you want the longer duration cams to extend the powerband...... springs are cheap anyhow

 

I have side to side dynos, same dyno, same tuner, at 10-20+psi on a standard 18G Greddy kit. Both maxed out, from 3-8K rpms.

There is NO difference w/Greddy kits, between the 2 sets of cams, other than crappier idle with BC3's and slightly harder driveability/tuning needs. Take it for what its worth.

 

I would assume the "small" 18g's and the intake just can't keep up at the higher rpm's to get the benefit of the 272's.

I need to have larry do a layover of my graph against Vito's (55billets with 264's)

Tom