power output?

[loveless]

hey guys just wondering what yous reckon my car should make on the dyno?
ive finally got all my parts together now so in 3-4 weeks time it will be sent in to get put together

whats goin on.. pacemaker extractors with twin 2.5inch system with one resonator in each side, maffless tune, crane cam (hot) heavy duty valve springs, crow push rods, ARP head stud kit, crow cam chain with a crow adjustable cam gear and a full gates 25% uderdrive pully kit..

im thinkin it should make the 300rwkw mark but hopefully a little more

what sort of power do you guys think and also is the anything else i should be doin while its getting worked on?

cheers

[Jesterarts]

Depends on the cam I guess... but it's fairly common for a LS1 to make 300rwkw with the modifications you have listed.

Just one thing... and I'm not sure on this... the intake manifold was upgraded at some point around the VT-VX LS1 era I beleive.

I'm pretty sure it was going from VT to VX... but someone will correct me on this.

Is it auto or manual? probably need to upgrade that area if you're around 300rwkw.

Other than that... some diff gears? give it a bit more "bite" off the line...?

Good luck

[H1GHROLLR]

whats the specs on the cam mate that will help to give you a closer guess

[H1GHROLLR]

if its a cam with a fairly small lift aroun the .550 mark i would say 280-295kw which i say it might be because once you start going over the .615 you really should have valve relief in you pistons if you go to a cam with around that .615 plus you should see the 420+rwhp the other things you mentioned ie.push rods,timing chain and arp studs wont make you any more hp jut make it more reliable also shaving a fair bit off the heads like around the 40-45thou mark really makes a difference it sounded a bit much to me but i tried it and it payed off

[loveless]

i forgot to mention that mate its got the ls6 manifold already.. as for the specs on the cam i dont really no i got it of my mate and its brand new but hes lost the specs sheet he said its a big cam, more srip then a street cam

[H1GHROLLR]

yeah but you really need to know if its big as in big duration numbers or big lift numbers do you know what i mean mate

[loveless]

oh an its a manual with a ripshift in it..

[H1GHROLLR]

the rip shift wont add any hp either mate

[loveless]

lol yeh i no just fillin yous in on what its got lol

[H1GHROLLR]

oh ok cool lol need some cam specs dude to give you a good stab in the dark

[loveless]

well i have the number on the end of the cam if you no a site to look it up on?

[loveless]

its HR-223/353-251-12

[minux]

You ask for hp figures but cannot provide cam specs? No head work? Its like throwing a tennis ball in a itch black room and guessing how far away its going to land.

Who cares how much it makes on a dyno, worry about how fqast it runs down the 1/4 and work out how much power it has that way. Dyno's are only a guess at best...amazing how many 300rwkw LS1's I have seen on a dyno only for the owners to barely to be able to match 260rwkw times on the best of runs...

[H1GHROLLR]

You ask for hp figures but cannot provide cam specs? No head work? Its like throwing a tennis ball in a itch black room and guessing how far away its going to land.

Who cares how much it makes on a dyno, worry about how fqast it runs down the 1/4 and work out how much power it has that way. Dyno's are only a guess at best...amazing how many 300rwkw LS1's I have seen on a dyno only for the owners to barely to be able to match 260rwkw times on the best of runs...

your so rite minux the guy that tunes my car has a ls1 ute that makes just around the 406rwhp and he runs very consistant high 10's im glad that you said that because its right

[H1GHROLLR]

do you have a box for the cam with a brand name or anything or any name on the cam

[H1GHROLLR]

or even a name for the valve springs

[loveless]

its a crane cam mate.. i got the valve springs seperate to the cam but they are also crane

[H1GHROLLR]

dont look l crane make that cam anymore its not on there site sorry mate cant help ya there

[loveless]

yeh thats what i thought theres one on there that is similar but oh well.. thanks for ya help anyways mate

[Vt_vic]

if its a big cam without ported heads its not make that much power prolly under 300rwkw

[greenfoam]

^^ That's right you wont make 300 without good heads on it. 270-280 more like it for the original poster. Depending on how good the exhaust really is etc. 300 is a very good number for a LS1 not many really make it there messured on realistic dynos. I know a guy with a high 11 second VY manual and hes making 290 rwkw with a better setup than this (dart heads etc)