twin gt42 76mm
twin gt42 76mm what would a twin gt42 76mm turbo set up be capable of?
I know one is good for the 1100hp mark, but if you were running a 383ci 9:1 motor and looking to put out about the 1200 to 1500hp, and you already have one gt4276, it would be cheaper than buying a single turbo that will produce that kind of hp. I'm already going to redo the hot pipes when I get a new turbo anyway. What do you thing would be the problems?
I know one is good for the 1100hp mark, but if you were running a 383ci 9:1 motor and looking to put out about the 1200 to 1500hp, and you already have one gt4276, it would be cheaper than buying a single turbo that will produce that kind of hp. I'm already going to redo the hot pipes when I get a new turbo anyway. What do you thing would be the problems?
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acordding to this guy 1008rwhp on a 402! 
http://www.baldturbofreak.com
you should beable to make ALOT more than that if you could keep the heads on the block! i know nelson racing use T72s and they make over 1500bhp (crank) on a 427 SBC. also i think the larger GT42 are known as GT4202's. these are the 1100bhp units.
Chris.
http://www.baldturbofreak.com
you should beable to make ALOT more than that if you could keep the heads on the block! i know nelson racing use T72s and they make over 1500bhp (crank) on a 427 SBC. also i think the larger GT42 are known as GT4202's. these are the 1100bhp units.
Chris.
you won't get anywhere near 1100 out of a single 4276, been there done that.
Twins, without question.
we've got a car at the shop with a pair of the 70mm GT42's on a 38X LS motor, been 140 MPH in the 1/8 on a 28" radial. Less than stellar passes, not like it really matters
Twins, without question.
we've got a car at the shop with a pair of the 70mm GT42's on a 38X LS motor, been 140 MPH in the 1/8 on a 28" radial. Less than stellar passes, not like it really matters
Originally Posted by Z8'S
I have a pair of them on my LT1 I'll let you know soon. 
Originally Posted by y2khawk
you won't get anywhere near 1100 out of a single 4276, been there done that.
Originally Posted by Websy21
Ya, you would have to go twins or a big *** single would do it too
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Originally Posted by nick97ta
what would a twin gt42 76mm turbo set up be capable of?
I know one is good for the 1100hp mark, but if you were running a 383ci 9:1 motor and looking to put out about the 1200 to 1500hp, and you already have one gt4276, it would be cheaper than buying a single turbo that will produce that kind of hp. I'm already going to redo the hot pipes when I get a new turbo anyway. What do you thing would be the problems?
I know one is good for the 1100hp mark, but if you were running a 383ci 9:1 motor and looking to put out about the 1200 to 1500hp, and you already have one gt4276, it would be cheaper than buying a single turbo that will produce that kind of hp. I'm already going to redo the hot pipes when I get a new turbo anyway. What do you thing would be the problems?
Originally Posted by RealQuick
Nick, you giving up already on the single kit?
Originally Posted by DrTurbo
You'll need more then one of those as mentioned to make 1100hp on a 383. Its all about efficiency when it comes to turbocharging. Just cause its rated 1100hp, doesn't mean it will make it.
Originally Posted by chuntington101
acordding to this guy 1008rwhp on a 402!
http://www.baldturbofreak.com
you should beable to make ALOT more than that if you could keep the heads on the block! i know nelson racing use T72s and they make over 1500bhp (crank) on a 427 SBC. also i think the larger GT42 are known as GT4202's. these are the 1100bhp units.
Chris.
http://www.baldturbofreak.com
you should beable to make ALOT more than that if you could keep the heads on the block! i know nelson racing use T72s and they make over 1500bhp (crank) on a 427 SBC. also i think the larger GT42 are known as GT4202's. these are the 1100bhp units.
Chris.
Originally Posted by John Wilde
Chow's motor made 1850ish on Duttweiler's dyno.
This is with twin GT42/74Rs on ~390ci.
There was more left in the combination.
This is with twin GT42/74Rs on ~390ci.
There was more left in the combination.
One may not be enough for what I want, but two will be more than I need or can handle. the motor that I'm going to build will probably only handle 1200 fwhp, but I would have plenty of turbo left.
