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Author
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Topic: do anyone have gt-40 iron heads on there car and run 13s or better?
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phat50
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Member # 1998
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posted
 
 
anyone have some gt-40 iron heads on there car and run 13s or better,if so whats your combo and whats your time in the 1/4 mile?because i have some i want to put on,and i want to see how much better thay are over the stock e7s?
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New toy coming soon!
Posts: 2860 | From: Richmond / Valley jo/ Petaluma | Registered: Oct 2002
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chosen1
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Member # 1906
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posted
93 Pony and ON N20 have those heads on their cars and they both run much much faster than 13.00; but they both have turbos. There are MANY cars on this board with E7's heads going 13's.
Posts: 2205 | Registered: Sep 2002
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JoeT
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Member # 298
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posted
I went from 12.9s @ 104 to 12.5s @108 by swapping from stock heads to GT-40 irons. You should pick up about ~3 or 4 mph regardless.
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1984 Ford Tempo AOD--- RIP
Posts: 6785 | From: San Jose | Registered: Jun 2001
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phat50
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Member # 1998
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posted
cool,the best i ever got was a 14.3 at 97mph 2.35 60ft with stock heads and 3.08 gears and bad street tires,hoping with the heads ill go a little faster.
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New toy coming soon!
Posts: 2860 | From: Richmond / Valley jo/ Petaluma | Registered: Oct 2002
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Stimson
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Member # 51
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posted
Your 5.O should run 13's with the stock heads on there. Get your car into the 13's first before swapping heads.
Posts: 2373 | Registered: Jun 2000
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BlackNGold
CaliforniaFords.com
Moderator
Member # 655
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posted
Are you getting a good deal on these heads?...I would personally rather save more money for some better aluminum heads...
Like Sawson said, your 5.0 can run 13's with the stock heads....I ran 13.6 @ 102 with my stock heads...I know I could've got better times than those, especially since I modified the car after that..
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-SLOWER TRAFFIC KEEP RIGHT-
Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001
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phat50
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Member # 1998
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posted
WELL EVERYBODY I KNOW THAT RUN 13S WITH STOCK HEADS HAVE GEARS AND STIKY TIRES,AND I BE RUNNING MY CAR WITH STREET TIRES AND STOCK 3.08 GEARS.
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New toy coming soon!
Posts: 2860 | From: Richmond / Valley jo/ Petaluma | Registered: Oct 2002
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chosen1
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Member # 1906
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posted
Id hate to you see yank off your intake, put Gt-40's on, put the same intake back on, and still be running 14's. Go get gears, and other little things before you tear the top half apart.
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1967 Fastback. Should go 10's -but doesn't
1993 Cobra
2003 Suzuki SVS
1966 Coupe -For Sale
Posts: 2205 | Registered: Sep 2002
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phat50
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Member # 1998
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posted
YOU THINK ILL STILL BE RUNNING 14.3S AT97MPH WITH ALL THE STUFF I HAVE,IF I PUT ON SOME GT-40 HEADS?
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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:
YOU THINK ILL STILL BE RUNNING 14.3S AT97MPH WITH ALL THE STUFF I HAVE,IF I PUT ON SOME GT-40 HEADS?
yes, cause it seems that you cant drive your car very well.
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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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chosen1
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Member # 1906
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posted
I dont know what other stuff you have, but I honestly cant see much improvement with GT-40's stock MAF, TB, Intake, etc, etc. My point was there are other areas where I think you can gain ET.
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1967 Fastback. Should go 10's -but doesn't
1993 Cobra
2003 Suzuki SVS
1966 Coupe -For Sale
Posts: 2205 | Registered: Sep 2002
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66 AC COBRA
Nitrous King
Member # 904
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posted
one of the reasons his car is slow right now is the combo is a huge mis match
he has a stock long block, stock cam
edelbrock RPM intake, 70mm tb
that big of an itake and tb is just killing his low end power, that will go for e'7s or the gt40's, the rpm is WAY to big
as i have said many times phat50, trade ur upper intake for someones regular performer and u will be faster, a performer intake is much better suited for gt40's than the rpm, i repeat, its too big, especially with those gears
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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JoeT
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Member # 298
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posted
*eyes his spare performer upper in the garage*
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1984 Ford Tempo AOD--- RIP
Posts: 6785 | From: San Jose | Registered: Jun 2001
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4RS FED
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Member # 2067
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posted
quote:
Originally posted by shade-:
*eyes his spare performer upper in the garage*
you want to buy my downs upper ![[Big Grin]](biggrin.gif)
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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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66 AC COBRA
Nitrous King
Member # 904
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posted
quote:
Originally posted by shade-:
*eyes his spare performer upper in the garage*
if ur referring to me, that intake is gone
and the typhoon intake i have turns out to be the rpm clone and my firned is trading me this intake for his intake bevcause he doesnt like it, and all i have to do is intall it for him, this sounds like a bad deal for me until i let u in on a little secret, the intake he is giving me straight up is an ORIGINAL saleen intake
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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phat50
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Member # 1998
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posted
RIGHT NOW I HAVE EDLEBROCK RPM INTAKE,70MM THROTTLE BODY,73 C&L MASS AIR,1.7 ROLLER ROCKERS,PULLIES AND SOME OTHER STUFF,YOU DONT THINK I WOULD GAIN ANYTHING BY ADDING GT-40 HEADS TO THIS?I HAD A CHANCE TO TRADE INTAKES WITH 66 AC NOW I CANT FIND A PREFORMER ANYWHERE,EVEN FOR SALE.
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New toy coming soon!
Posts: 2860 | From: Richmond / Valley jo/ Petaluma | Registered: Oct 2002
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JoeT
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Member # 298
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posted
quote:
Originally posted by ON N2O:
you want to buy my downs upper
That only bolts to a GT-40 style lower though right, plus the only boost I have comes in a bottle
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1984 Ford Tempo AOD--- RIP
Posts: 6785 | From: San Jose | Registered: Jun 2001
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street_illegal_stang
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Member # 1554
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posted
ditch the rpm-too much-
get the performer upper
ditch the 1.7's
go for the 1.6's and f-cam
hi 12's on good tires-comp t/a bfg.or eagle 1's
Posts: 1276 | From: Long Beach C.A | Registered: Jul 2002
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cheap
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Member # 858
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posted
quote:
Originally posted by 66 AC COBRA of CA PERFORMANCE:
the typhoon intake i have turns out to be the rpm clone and my firned is trading me this intake for his intake bevcause he doesnt like it, and all i have to do is intall it for him, this sounds like a bad deal for me until i let u in on a little secret, the intake he is giving me straight up is an ORIGINAL saleen intake
Wow turned out to be an RPM clone, huh? Well either way Im glad to hear you're gettin a good deal out of it. ![[patriot]](graemlins/patriot.gif)
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1965 Spyder GT
Posts: 1358 | From: Maine | Registered: Feb 2002
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98slowhoe 'FIFTYLX'
Uncle Frank
Member # 895
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posted
quote:
Originally posted by 66 AC COBRA of CA PERFORMANCE:
one of the reasons his car is slow right now is the combo is a huge mis match
he has a stock long block, stock cam
edelbrock RPM intake, 70mm tb
that big of an itake and tb is just killing his low end power, that will go for e'7s or the gt40's, the rpm is WAY to big
as i have said many times phat50, trade ur upper intake for someones regular performer and u will be faster, a performer intake is much better suited for gt40's than the rpm, i repeat, its too big, especially with those gears
Crap on that I had an RPM, 70mmTB, stock heads stock cam, 3:55's, exhuast and I went 13.50's and my best MPH was 103MPH, with no pullies stock MAF, paper filter, and my number 6 plug wire half burnt off!
I say stick some better gears in it and put some nitto DR's on it and better your driving and see what you can do then put the heads on it!!!what ever you do don't get rid of that intake cause you will want it in the future. ![[burnout]](graemlins/burnout.gif)
[ October 13, 2003, 03:28 PM: Message edited by: 98slowhoe ]
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AKA Franky Freaking 5 liter
Advanced Engine Development
SCT dealer
Dynotuning
Engine building
916*275*8212
88 4runner on 42's
Posts: 4206 | From: Folsom | Registered: Feb 2002
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