How much power will i need
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Joined: Jun 2003
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From: Jax, Florida
Car: 1986 Trans Am
Engine: 305 LB9 TPI
Transmission: 700-R4
How much power will i need
How much power will i need to give a 2003 Mustang GT a good run, even beet it? I know i'll need a new rear end but what kinda power torque are we talking here?
How much would this cost me to do?
How much would this cost me to do?
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Joined: Aug 2001
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From: Memphis, Tn
Car: 92' RS
Engine: 357
Transmission: TH350
Axle/Gears: 4.10
Say he can drive an average 14.0 in the 1/4. Say you weigh 3500lbs. with you in the car. Using my desktop dyno, if everything was textbook you would need 300hp to run 13.89 @ 97. To be close you would only need 293hp to run a 14.0 @ 96.2.
This is 300 rwhp though, at the crank that would be pretty close to 360hp with an average of a 20% drivline loss through a 700r4.
This is 300 rwhp though, at the crank that would be pretty close to 360hp with an average of a 20% drivline loss through a 700r4.
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Joined: Aug 2001
Posts: 1,236
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From: Warwick,RI
Car: 88 IROC-Z/00 GTP/05 VUE Redline
Engine: LB9 305/3800 SC/3.5 SOHC V-TEC
Transmission: A4/A4/A5
you're gonna need headers,catback,all the usual cheap mods. And even then you're gonna fall short.
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Joined: Feb 2001
Posts: 13,777
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
You need about 260 to the wheels and some good driving and that should be it. Most LT1's M6's can take them and they put down around 260. I have yet to race one in mine but I will one day. But an above average mustang driver can get great times out of one. Some have seen mid 13's.
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Joined: Aug 2001
Posts: 972
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From: Memphis, Tn
Car: 92' RS
Engine: 357
Transmission: TH350
Axle/Gears: 4.10
This is 300 rwhp though, at the crank that would be pretty close to 360hp with an average of a 20% drivline loss through a 700r4.
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Joined: Jul 1999
Posts: 1,366
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From: Atlanta, GA, US of A
Car: 94 Z28
Engine: LT1 w/ headers, catback, CAI, tune
Transmission: 4L60E
Axle/Gears: 3.23s
Throw a mild cam in there, port the plenum, snag a set of headers, high flow cat, and a decent catback, and throw some 3.42s in the rear assuming you've got 2.73s currently and you should be able to keep on up with em, especially autos, may even beat a few if you have a strong running 305. My old 86 IROC with basically those mods was able to match/inch on more than one, probably autos though. I'd add a set of aftermarket runners and a base (or port the crap outta the stockers) if you want to consistently beat most of them... If you're porting it couldn't hurt to tickle the stock heads just a bit too...
Lotta work to still be relatively slow though, I'd think about an engine swap to a decent 350.
Lotta work to still be relatively slow though, I'd think about an engine swap to a decent 350.
Last edited by Ray87Z; Jan 7, 2004 at 01:32 AM.
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Joined: Oct 2003
Posts: 1,668
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From: Houston
Car: 86 Berlinetta 84 MonteCL
Engine: 3.4 MPFI 3.8 229
Transmission: 700r4 T350
The 350...
If you got a 305 and want power....350's are cheap to purchase and speed parts extremely cheap. For about 2 grand you could walk em.
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