300rwkw n/a ls1 with cam only + bolt ons + auto... possible & streetable?

[sly_gen3]

Hey guys just wondering if anyone has had experiance with big cams in an ls1 street car and what power is possible to acheive. I have an ls1 with 4200 rpm stall and manualised auto and will be getting 3.9 diff gears. With basic bolt ons like 1 7/8 extractors hi flow cats and twin 2.5" exhaust, underdrive kit and otr intake etc. Would 300 rwkw be an unreasonable figure to acheive with for example a GMM Turbo killer cam. cheers any help would be much appreciated.

 

[acarmody]

Thats a big stallie for a 'streetable' car.

 

[GenReaper]

Doubt you will get 300, maybe 270ish.

If you did the heads, cnc Ported " Higgins Heads " and shaved with 3 angle valve seats and better compression ratio and a retune you may get close to 300.

http://www.higginsraceheads.com.au/

 

[sly_gen3]

Thats a big stallie for a 'streetable' car.

I said streetable not daily haha. How much power would you lose through an auto compared to manual? Does any one have one of the GMM turbo killer cams in there ls1?

 

[sly_gen3]

GMM-TK Custom Camshaft Turbo Killer 237/242 @.050 2500-6900. thats the cam specs

 

[GenReaper]

Lobe separation comes into play as well, 112 / 114 ?

 

[GenReaper]

Do yourself a favour and ring this guy, he knows his stuff.

Chev's Performance Centre - Carrum Downs Victoria

 

[acarmody]

Powers not everything, 1/4 mile time is important too. Times are comparable, dyno runs aren't.

 

[sly_gen3]

Powers not everything, 1/4 mile time is important too. Times are comparable, dyno runs aren't.

this is true with around 300 atw and a good set of slicks i would be hoping for mid to high 11s. Would you agree? As for the lobe separation im not too sure those specs are all it says on the website.

 

[acarmody]

Hard to say, every car acts differently. One VT with 300rwkw might achieve 11's while another VT with exactly same power might get higher or lower.

Basically what I'm trying to say is just get all the go-fast bit you are planning and put together but don't chase a number.

And out of curiosity why don't you want to charge it? Would probably b cheaper.