Estimated HP ?
04-14-2007, 07:44 PM
#1
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Car: 1986 Camaro Z28
Engine: LG4 305
Transmission: 700R4
Axle/Gears: Richmond 3:73 Posi trac
Estimated HP ?
I got a LG4 305 all stock except a hollowed out cat 3 inch flomaster cat back headers and 3 inch y pipe dual snorkle air cleaner k&n filter and a Comp XE256 cam and a stock eletric cooling fan around how much hp and tq do
you think its making ?
you think its making ?
04-14-2007, 08:05 PM
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Car: Red 1987 IROC Convertible
Engine: 305 LB9 TPI
Transmission: T5 5-Speed
Axle/Gears: 9-Bolt 3.45
04-14-2007, 08:25 PM
#4
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Car: 1986 Camaro Z28
Engine: LG4 305
Transmission: 700R4
Axle/Gears: Richmond 3:73 Posi trac
Re: Estimated HP ?
are u saying 25 35 hp to the wheels or at the crank i would hope a cam headers full 3 inch header back exhaust system dual snorkle air cleaner and k&n would make more then that at the crank
04-15-2007, 12:37 AM
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Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
Re: Estimated HP ?
well i would expect to see more also on a fresh engine but not a 20 year old engine...and i bet it will be at the crank... only one way to find out though take it to a dyno see what you get.
04-15-2007, 01:07 AM
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Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: Estimated HP ?
A good exhaust upgrade is known to push 30-40HP by itself. I think you're knocking on the door of 200HP at the crank, assuming everything else is working right, good spark, good fueling etc.
04-15-2007, 01:51 AM
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Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
Re: Estimated HP ?
i did my exhaust when i got my car and i would have crapped my self if i got 30-40 hp out of it... seem like that at the time but you know how the butt dyno is... after a couple of days it is back to the same sluggish joke of a engine it was before... now going to a 350 will be a much better performance upgrade...
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04-15-2007, 07:17 PM
#8
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Car: 1986 Camaro Z28
Engine: LG4 305
Transmission: 700R4
Axle/Gears: Richmond 3:73 Posi trac
Re: Estimated HP ?
well my camaro is a one owner with 70,000 orginal miles so its not like its beat to death
04-15-2007, 07:45 PM
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Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
Re: Estimated HP ?
yeah but you werent the original owner... so the original owner telling you he didnt beat it is worthless that is like me showing you my car and saying all the rubber around the wheel wells is cause the tires are old... plus the car sat for 6 years so... that engine isnt in tip top shape
04-15-2007, 08:47 PM
#10
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Car: 1986 Camaro Z28
Engine: LG4 305
Transmission: 700R4
Axle/Gears: Richmond 3:73 Posi trac
Re: Estimated HP ?
well he was my next door neighboor and ive known him since i was in elementry school it was always garaged and always maintained and then he hurt his back and parked it for 6 years
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i have a 350 i could put in it but i dont want to replace the stock tranny and im sure it wont hold up to 350 + hp
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i have a 350 i could put in it but i dont want to replace the stock tranny and im sure it wont hold up to 350 + hp
Last edited by Payphonejesus; 04-15-2007 at 08:49 PM. Reason: Automerged Doublepost
04-15-2007, 10:54 PM
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Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
Re: Estimated HP ?
you might be surprised what that tranny can take especially with the 3.73 gears=less stress on the tranny... no if you put slicks on it then i would worry
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