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Author
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Topic: MOST POWER FROM GT40 IRONS?
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Jaejae5.0
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Member # 7958
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posted
 
 
just curious but what was the most power gt40 heads are capable of..no porting no custom cams or n20..im still thinkn bout the edelbrock e street heads for 937$..but i would like to know if the underdog gt40 irons can still pull good number..thanks JAE
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1987 notchback h/c/i 302 & 70mm turbo SOLD
2000 camaro ss cam only
Posts: 4890 | From: the combustion chamber | Registered: Oct 2007
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Notch1320
Man Pedal
Member # 2647
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posted
Depends on what number you have in mind? I have seen stock unported, stock valve size GT-40's in the 10.30's in an N/A configuration... and I am sure others have gone quicker.
[ July 06, 2009, 04:14 AM: Message edited by: Notch1320 ]
Posts: 2349 | From: Yuba City, CA | Registered: Mar 2003
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Blind
2.3L
CAFords OG
Member # 3052
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posted
I'd hope you could get 280rwhp+ with them, I made 249hp/296tq at the wheels on a dynojet with e7's on my healthy stock motor from the throttle body to the oil pan.
I know of a guy in socal with a ported set that made 304rwhp with gt40's on a street car 94/95gt..
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89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi
Posts: 8521 | From: Fairfield | Registered: Jul 2003
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turbo50
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Member # 6700
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posted
GT40s have been in the 9s with boost.
Iam sure they were not stock GT40s but none the less....
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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blown95svt
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Member # 8893
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posted
a couple guys on corral with 94/95 cobras (gt40s and cobra intake) stock motors with a custom cam and s trim with 15lbs hitting 550 through an auto
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95 cobra blown 331 gr40 suspension
***NEED QUALITY WORK FOR HALF THE PRICE? I DO SIDE JOBS! PM FOR DETAILS***
www.norcalmotorcompany.com
Posts: 1434 | From: roseville | Registered: Jan 2009
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Jaejae5.0
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Member # 7958
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posted
quote:
Originally posted by Blind:
I'd hope you could get 280rwhp+ with them, I made 249hp/296tq at the wheels on a dynojet with e7's on my healthy stock motor from the throttle body to the oil pan.
I know of a guy in socal with a ported set that made 304rwhp with gt40's on a street car 94/95gt..
and do you know how much that port work would cost?..thats a pretty good number from gt40 irons
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1987 notchback h/c/i 302 & 70mm turbo SOLD
2000 camaro ss cam only
Posts: 4890 | From: the combustion chamber | Registered: Oct 2007
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turbo50
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Member # 6700
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posted
quote:
Originally posted by jaejae:
quote:
Originally posted by Blind:
I'd hope you could get 280rwhp+ with them, I made 249hp/296tq at the wheels on a dynojet with e7's on my healthy stock motor from the throttle body to the oil pan.
I know of a guy in socal with a ported set that made 304rwhp with gt40's on a street car 94/95gt..
and do you know how much that port work would cost?..thats a pretty good number from gt40 irons
I dont think it would be cost effective.
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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Eddie510-
CAFords OG
Member # 2354
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posted
quote:
Originally posted by jaejae:
quote:
Originally posted by Blind:
I'd hope you could get 280rwhp+ with them, I made 249hp/296tq at the wheels on a dynojet with e7's on my healthy stock motor from the throttle body to the oil pan.
I know of a guy in socal with a ported set that made 304rwhp with gt40's on a street car 94/95gt..
and do you know how much that port work would cost?..thats a pretty good number from gt40 irons
depends if u want to do a complete job. 5 too 600 bucks but this quote i got from a very bad ass shop in newark that do very good work
Posts: 6557 | Registered: Jan 2003
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Blind
2.3L
CAFords OG
Member # 3052
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posted
quote:
Originally posted by turbo50:
quote:
Originally posted by jaejae:
quote:
Originally posted by Blind:
I'd hope you could get 280rwhp+ with them, I made 249hp/296tq at the wheels on a dynojet with e7's on my healthy stock motor from the throttle body to the oil pan.
I know of a guy in socal with a ported set that made 304rwhp with gt40's on a street car 94/95gt..
and do you know how much that port work would cost?..thats a pretty good number from gt40 irons
I dont think it would be cost effective.
+1, the guy did the port work himself, if you were to pay for the work, I'd say sell the gt40's and get a set of aluminum heads, cheaper in the long run.
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89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi
Posts: 8521 | From: Fairfield | Registered: Jul 2003
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wilit
Mustang Messiah
Member # 3367
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posted
quote:
Originally posted by Eddie510-:
depends if u want to do a complete job. 5 too 600 bucks but this quote i got from a very bad ass shop in newark that do very good work
$600 for port work + $300 for heads and you're still $300 lower than a new set of Edelbrocks or Trickflows. ![[patriot]](graemlins/patriot.gif)
[ July 06, 2009, 09:18 PM: Message edited by: wilit ]
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"If a man hasn't found something worth dying for, he isn't fit to live." - Martin Luther King Jr.
Posts: 4793 | From: 37.78514° North 122.40100° West | Registered: Oct 2003
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2Foxes2Five0Coupes
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Member # 9154
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posted
Just get you some aluminum heads J. They will keep you lookin icey when you skatin. More power potential with aluminum less weight 2 but you already knowin.
Posts: 485 | From: Oakland | Registered: May 2009
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Stan G
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Member # 6226
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posted
Blind " I made 249hp/296tq"
How the hell did you do that ?
Those are awfully good numbers !
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1985 RX-7, 347/T-5 , T/F T/W heads, typhoon intake, Tfs2 cam, pulleys, 2500 lbs .
3.63 rear gears , Megasquirt
Posts: 105 | From: Sun Coast , Florida | Registered: Nov 2005
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turbo50
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Member # 6700
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posted
quote:
Originally posted by wilit:
quote:
Originally posted by Eddie510-:
depends if u want to do a complete job. 5 too 600 bucks but this quote i got from a very bad ass shop in newark that do very good work
$600 for port work + $300 for heads and you're still $300 lower than a new set of Edelbrocks or Trickflows.
A good valve job will cost you at least $400.
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.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
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Blind
2.3L
CAFords OG
Member # 3052
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posted
quote:
Originally posted by Stan G:
Blind " I made 249hp/296tq"
How the hell did you do that ?
Those are awfully good numbers !
http://i40.photobucket.com/albums/e237/blindbatts/mustang/89dyno2.jpg
stock `87 motor, stock tb/intake/rockers/e7s/cam/etc, but with `89 MAF harness and A9L ecu, no a/c, no p/s, pullies, electric fan, 3g alt, stock airbox and tube with k&n filter but no air silencer, pro-m 19lb MAF, timing at 14*btdc base, long tubes, dr. gas o/r x-pipe, dynomax superturbo catback
the car ran a 13.1 @ 104mph with a 1.71 60' in that trim
my buddy 'coupester' on corral ran 12.95 or something with his stock e7 car, and made 245rwhp / 320rwtq, his had a good 3 angle valve job done on the heads though, mine are untouched ~100k mile heads...
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89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi
Posts: 8521 | From: Fairfield | Registered: Jul 2003
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87TURBO
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Member # 9257
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posted
gt40 heads non ported, e cam,explore or cobra non poted intake,small turbo 12psi 500+rw 550+tq fursure! y spent 1100 on aluminum heads if the stock block only holds 500rw! i seen gt40 heads for only $300 used and eplore intake for $250 if u are in a buget is the way two go cheap and fast
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turbo people
Posts: 403 | From: modesto/sanjose | Registered: Jun 2009
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BlowN67
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Member # 4229
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posted
an i got both forsale too gt40 irons an explorer intake lmk
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AIM gonein67 JOHN
* californiafords.com
* corral.net
* foureyedpride.com
* yellowbullet.com
* theturboforums.com
Posts: 9809 | From: Home of LARD | Registered: Mar 2004
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87TURBO
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Member # 9257
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posted
quote:
Originally posted by BlowN67:
an i got both forsale too gt40 irons an explorer intake lmk
i already have extra set! but thats a good set up
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turbo people
Posts: 403 | From: modesto/sanjose | Registered: Jun 2009
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Duncan Motors
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Member # 7045
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posted
clean out the exaust bump does a lot for these and the e7 heads , this will cost 150 bucks, by me. if u want the heads 100 percent rebuilt, take them to frams machine shop, an when he breaks down the heads an inspects them for what they need he will tell u a price<price unknown for the state of there condition>. for an additional 300 bucks while the heads are broken down by him ,he will send them to me , then i fully clean up an bowl blend behind the vavles, cut out the bumps in the exaust an smooth an partially reshape out the exaust runner <they suck stock> port match the intake to whatever intake gasket your runnin.this is about the best there gonna get for the money, before your like i should have bought after market heads. when im done with the heads i send them back to frams machine shop an then he does his thing reassmbling.call if interested been doin it for years with great results. 707 297 0868
Posts: 6310 | From: Vallejo | Registered: Sep 2006
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HaulinAss Motorsports
Its a STREETRaceCar!
Member # 541
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posted
quote:
Originally posted by Notch1320:
Depends on what number you have in mind? I have seen stock unported, stock valve size GT-40's in the 10.30's in an N/A configuration... and I am sure others have gone quicker.
You must be referring to Stock Eliminator Cars. There would be NO other way to have a stock valved,unported GT40 running 10 anyting any other way NA. Those guys have THOUSANDS into their combos to make a stock head do anything, and most of it is in the cam/shortblock but still an untouched head those numbers are damn near unatainable
I had a BADASS set of Panhandle Peformance GT40 Heads that were worked as far as humanly possible and they still only had 280 flow numbers. They did have stock valve size. These were ran on a stock eliminator car where they had to utilize stock casting,vlave size etc....
Posts: 22494 | From: Sacramento | Registered: Nov 2001
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Notch1320
Man Pedal
Member # 2647
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posted
Yes, Stock Eliminator cars. There are several GT-40 headed cars, and a handfull of E7 cars in Stock Eliminator that run some very impressive numbers. Evan Smith (93 Cobra)is in the 10.80 range, and quicker at race weight. Stripped down without the added weight, stock seats, and other heavy required stock items can return some extremely low numbers. Low 10's are very possible! These cars retain stock lift camshafts as well. Look at the NMRA Factory Stock guys. they have quite a few different rules, but the class champion for the last few years runs an E7 headed combo, and has been destroying the GT40 headed cars, along with the 2V and 4V cars. Learning to pull every ounce of power out of something is not cheap, and can be frustrating, but it can be done.
Posts: 2349 | From: Yuba City, CA | Registered: Mar 2003
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HaulinAss Motorsports
Its a STREETRaceCar!
Member # 541
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posted
quote:
Originally posted by Notch1320:
Yes, Stock Eliminator cars. There are several GT-40 headed cars, and a handfull of E7 cars in Stock Eliminator that run some very impressive numbers. Evan Smith (93 Cobra)is in the 10.80 range, and quicker at race weight. Stripped down without the added weight, stock seats, and other heavy required stock items can return some extremely low numbers. Low 10's are very possible! These cars retain stock lift camshafts as well. Look at the NMRA Factory Stock guys. they have quite a few different rules, but the class champion for the last few years runs an E7 headed combo, and has been destroying the GT40 headed cars, along with the 2V and 4V cars. Learning to pull every ounce of power out of something is not cheap, and can be frustrating, but it can be done.
Yeah years back I had a buddy that ran stock elim truck. with a 360 Mopar and 5k pound truck with all factory offered parts that thing would dip into the 11's occasionaly . Thoe guys have some ideas that if they were adapated to whats available, could make some seriouly amazing power.
Posts: 22494 | From: Sacramento | Registered: Nov 2001
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Notch1320
Man Pedal
Member # 2647
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posted
My car will be in the 11.70-.80 range by the end of the year. E7TE's!!!!
Posts: 2349 | From: Yuba City, CA | Registered: Mar 2003
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