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Author
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Topic: gt-40 iorn heads
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phat50
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Member # 1998
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posted
 
 
on my car now i have eldebrock rpm intake,70mm throttle body,73 c&l mass air,underdrive pullies 1.7 rockers,shorties,o/r hpipe,silencer removed,king cobra cluch,190lb fuel pump,ajustable regulator and stock 3.08 gears and street tires.best time at the track is 14.3 with 2.3 60ft.would gt-40 iron heads put me at least in the 13s?and is there anything else thats easy i could do to put me in the 13s for sure without the heads?
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New toy coming soon!
Posts: 2860 | From: Richmond / Valley jo/ Petaluma | Registered: Oct 2002
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JohnB
Tech Moderator
Member # 969
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posted
Drag radials and GEARS. Definitely 13's.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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JoeT
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Member # 298
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posted
that's an easy 12 second combo with tire and gear
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1984 Ford Tempo AOD--- RIP
Posts: 6785 | From: San Jose | Registered: Jun 2001
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66 AC COBRA
Nitrous King
Member # 904
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posted
quote:
Originally posted by shade-:
that's an easy 12 second combo with tire and gear
and the gt40's obviously
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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Hungry Hippo
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Member # 537
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posted
you should hit 13's with some gears and quality street tires
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05 S4 Avant(wagon)
09 C6 H/C/I
Posts: 2959 | From: east bay | Registered: Nov 2001
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street_illegal_stang
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Member # 1554
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posted
i hit a 13.9 in my friends stock 89 gt with bald bfg street tires and a ped posi 308gears.
its all about the driver ![[Big Grin]](biggrin.gif)
Posts: 1276 | From: Long Beach C.A | Registered: Jul 2002
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street_illegal_stang
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Member # 1554
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posted
quote:
Originally posted by street_illegal_stang:
i hit a 13.8 or(8.9 @80 1/8 mile)in my friends stock 89 gt with bald bfg street tires and a peged posi 308gears.
its all about the driver
14.3?wtf with all thoses bolt ons? man somthing isnt right ![[Confused]](confused.gif)
Posts: 1276 | From: Long Beach C.A | Registered: Jul 2002
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Blue Oval
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Member # 2548
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posted
i agree
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65 Coupe 306, AFR's
89 Cali. Ed. Saleen "sold"
BAB 89 GT
08 Yamaha R6
Posts: 2345 | From: Sacramento | Registered: Mar 2003
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phat50
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Member # 1998
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posted
i dont know whats wrong,what could it be,i have a light ass coupe and every thing but heads,cam,and gears and my best is a fucking 14.3 with a 2.360ft.i have seen other people with a 2.360ft and bolt-ons and run 14s flat or better.it seems like at the track in second or third if i floor it it wont pull unles i come off the gass a little bit.what could it be?please help anyone??
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New toy coming soon!
Posts: 2860 | From: Richmond / Valley jo/ Petaluma | Registered: Oct 2002
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50DADDY
CAFords OG
Member # 3076
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posted
Sounds like maybe a little too much fuel or maybe even too much TB and intake for the stock cam.Gears would be a HUGE help to this combo.Try cutting back a little on the fuel pressure.Ive got a coupe also,and with nothing but a race crank pulley,x pipe w/converters,and no AC or pwr steering with stock gears and it runs 13.84@100 and 60fts in the 1.90s with regular street tires.Maybe you need to work on your launch technique.Whats your mile an hour?
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"Im not stupid,i just act that way so i dont make you dummies uncomfortable."
"Old age and treachery shall overcome youth and skill."
Posts: 4827 | From: Suckramento | Registered: Jul 2003
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phat50
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Member # 1998
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posted
my mile an hour is 97mph.i dont know if im getting to much fuel cause i still have the stock injectors and my fuel presure is at 40psi with vacume on.could it be my throttle body,i already know my intake is to much for my combo but i want to keep it.i would chang the throttle body if i new it would make a diffrence,would it?
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New toy coming soon!
Posts: 2860 | From: Richmond / Valley jo/ Petaluma | Registered: Oct 2002
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cobraman_1994
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Member # 467
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posted
get some suspension mods and gears and youll be hitting 1.x 60's all day.
that and get better at launching
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86 GT
Posts: 4882 | From: eldorado hills | Registered: Sep 2001
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phat50
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Member # 1998
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posted
what kind of suspension mods should i get?
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New toy coming soon!
Posts: 2860 | From: Richmond / Valley jo/ Petaluma | Registered: Oct 2002
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4RS FED
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Member # 2067
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posted
quote:
Originally posted by phat50:
what kind of suspension mods should i get?
this would help alot
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i have a twin turbo mustang and you don't!
Posts: 3686 | From: 650 | Registered: Nov 2002
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91 5.0
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Member # 1527
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posted
quote:
Originally posted by phat50:
what kind of suspension mods should i get?
just get some slicks and worry about suspension later. If you do anything to the suspension, just get the torque boxes re-welded. Youll hook up fine like that.
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02 GT - Zinc Yellow
91 5.0 LX - Red
Posts: 1316 | From: Fairfield | Registered: Jul 2002
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