400 rwhp

**tmoney** · 10-14-2007, 01:16 PM

I have a 04 GTO and i am wanting to make about 400 rwhp. All i have now is a CAI but this summer i can thorugh down some cash. What does it take for the ls1 to put down these number. NO nitrous.

**basballny2** · 10-14-2007, 01:27 PM

Long tubes, exhaust, cam, tune....that should be around 380-390 are u a m6 or a4

**tmoney** · 10-14-2007, 01:39 PM

i have the m6

**Kamauxx** · 10-14-2007, 03:40 PM

Originally Posted by basballny2

Long tubes, exhaust, cam, tune....that should be around 380-390 are u a m6 or a4

+pulley and you're good!

**tmoney** · 10-14-2007, 05:00 PM

about what will this setup cost me

**basballny2** · 10-14-2007, 05:07 PM

CAI=250, depends on the headers for price, however they all produce around the same hp, pacesetters 250, QTP, Kooks, ARH 600-800, exhaust i recomend magnaflow with the headers and cam it will sound real nice that will run you around 400, you can get a good cam for 300-350 and then if ur paying for labor

**slpgto2004** · 10-14-2007, 06:51 PM

I have a full exhaust (pacesetters ceramic coated) SLP Loudmouth, K&N CAI, and have a HP tune and have about 430-450 to the crank so yeah probley a lil lower then 400RWHP

**basballny2** · 10-14-2007, 09:50 PM

Originally Posted by slpgto2004

I have a full exhaust (pacesetters ceramic coated) SLP Loudmouth, K&N CAI, and have a HP tune and have about 430-450 to the crank so yeah probley a lil lower then 400RWHP

on an ls1? no where near 430-450 at the crank.....ull dyno around....340-350 ......how do u figure ur hp?

**tmoney** · 10-15-2007, 05:54 AM

this is also a daily driver what is this setup going to do for that. (gas mileage, idle, streetability)

**Naf** · 10-15-2007, 06:09 AM

Best Bang for buck would be the GM CR5 heads Pn 88958622

Plus throw in a nice GT2-3 cam from Lingenfelter with a Fast LSx 90mm and the usual accessories (headers, CAI, ignition wires, and a sweet set of plugs) and you will be makin well over your needed 400rwhp

As for the exhaust catback, Stainless works works wonders, not too noisy on the outside and super quiet on the inside...Not to mention great price, Bought one for a friend and WOW...

**04PhantomM6** · 10-15-2007, 07:22 AM

With the GT2-3 cam, youre going to need heads also to get there, or a catback. Do both and you should get to about 420rwhp.
I went with this cam for drivability. Heads, cam, springs, pulley, catless mids + tune = 392. Dyno waiting approval in racing section.