Which Turbo Headunit would be better???
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From: Sierra Vista, AZ
Which Turbo Headunit would be better??? Ok, looking at a 346 forged bottom, 8.5:1 CR, (later will add AFR heads) a nice cam (define nice turbo cam hahaha), Cmotorsport Stage 2 4L60E, 3400raceweight car, would it better to use:
PTE76GTS, 76mm, 56 trim comp wheel, 85 trim turbine, T4 Tangetial Housing at .81 or .96
OR,
GT42, Lrge frame, 94mm or 102mm comp wheel, 53 or 56 trim?
I am not familiar enough to know, as posted in HTF do you read compressor maps! So, this is for a street driven, with a fair amount of track duty F body that I am looking to get at least 600rwhp out of on a nice fat tune to avoid any alky needs.
Also, for IC, isnt a Air-Air better for Street and Track car, and Water - Air for mainly track? What is a heat exchanger and how would that benefit the Water to Air in above application?
Thanks.
Charlie
PTE76GTS, 76mm, 56 trim comp wheel, 85 trim turbine, T4 Tangetial Housing at .81 or .96
OR,
GT42, Lrge frame, 94mm or 102mm comp wheel, 53 or 56 trim?
I am not familiar enough to know, as posted in HTF do you read compressor maps! So, this is for a street driven, with a fair amount of track duty F body that I am looking to get at least 600rwhp out of on a nice fat tune to avoid any alky needs.
Also, for IC, isnt a Air-Air better for Street and Track car, and Water - Air for mainly track? What is a heat exchanger and how would that benefit the Water to Air in above application?
Thanks.
Charlie
only problem i have with the liquid intercooler is sometimes i forget to switch on the pump doh! but for quick blasts on the street i dont really need to turn it on anyway.
of you do a lot of hot lapping or repeated blasting on the streets you would want another small radiator (with its own fan is nice) to cool off the water that runs through the intercooler.
what are your size limitations, where you going to locate it? i take it this will be a self fab set up or using off the shelf parts? why do you think you need afr heads???
i'd like to learn about that second option turbo, i dont understand what it has to do with the number '42'? if you are ok with 600 peak rwhp i'd say you should look for something in the 60-70mm range and run 15psi or so on the pump..
of you do a lot of hot lapping or repeated blasting on the streets you would want another small radiator (with its own fan is nice) to cool off the water that runs through the intercooler.
what are your size limitations, where you going to locate it? i take it this will be a self fab set up or using off the shelf parts? why do you think you need afr heads???
i'd like to learn about that second option turbo, i dont understand what it has to do with the number '42'? if you are ok with 600 peak rwhp i'd say you should look for something in the 60-70mm range and run 15psi or so on the pump..
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From: orlando, florida
What kit are you running? If it's the QMP or TTi kit i don't think the large frame gt42 will bolt up. Not to mention it's way overkill for 600rwhp. i think that gt42 is rated for like 1000hp.
Last edited by MYTURBOT/A; Apr 8, 2004 at 08:20 AM.
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From: Las Cruces, NM
To stay in the efficiency range of the gt42 and say 700 fwhp or 700 lb/min you would have to run that turbo at 30+ psi. This turbo looks like it is set up for a diesel.
The T76 would get to the same point with 22 psi but probably isn't quite as efficient.
Gary
The T76 would get to the same point with 22 psi but probably isn't quite as efficient.
Gary
Originally Posted by MIGHTYMOUSE
only problem i have with the liquid intercooler is sometimes i forget to switch on the pump doh! but for quick blasts on the street i dont really need to turn it on anyway.
cuz i dont need to run it all the time, and i dont know the hour rating on the pump or fan either.. i will eventually hook it up to the boost controller as a backup to the main switch.
The gt 42 is a much better v8 turbo. the t76 and gt42 compressor maps are pretty close, but the gt42 exhaust housing flows more air. The gt 42 will put about 700 to the wheels at about 30 psi. It gets happy up in the 40 psi range. Little more psi that the ls1 heads like to stay down. I would reccomend an air to air if the car is to be driven on the street. Air to water is nice but more money and they are mainly for track use. Air to air will support 700 on most applications.
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The 76 GTS is all you need. The GT-42 is a great turbo though don't get me wrong, but it performs better at higher PR's. Water to air can be every bit as good as any air to air with a heat exchanger, and its alot more efficient. Same reason why Ford uses water to air on the new Cobras with a heat exchanger.
Jose
Jose
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From: Sierra Vista, AZ
Well, I guess the PTE76GTS will be the new winner for my build up.
Dave (MM) do you run a heat exchanger with your W2A IC? So I could hook a recirculatory pump into the W2A IC and have a more efficient setup, would it be wise to run it only in boost, or would it be ok to have it pump all the time? Is it just water you use in there, or a coolant mix of sort?
Also, the kit will be fabbed up. I obviously cant run a turbo in the 30+psi range, I will be happy with anything over 550rwhp, would love to nail 700 on pump gas everyday tune, even if I had to shoot some alky to keep it sane.
Thanks guys.
Charlie
Dave (MM) do you run a heat exchanger with your W2A IC? So I could hook a recirculatory pump into the W2A IC and have a more efficient setup, would it be wise to run it only in boost, or would it be ok to have it pump all the time? Is it just water you use in there, or a coolant mix of sort?
Also, the kit will be fabbed up. I obviously cant run a turbo in the 30+psi range, I will be happy with anything over 550rwhp, would love to nail 700 on pump gas everyday tune, even if I had to shoot some alky to keep it sane.
Thanks guys.
Charlie
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From: Your Reality Check Bounced...
Originally Posted by CAT3
Well, I guess the PTE76GTS will be the new winner for my build up.
Dave (MM) do you run a heat exchanger with your W2A IC? So I could hook a recirculatory pump into the W2A IC and have a more efficient setup, would it be wise to run it only in boost, or would it be ok to have it pump all the time? Is it just water you use in there, or a coolant mix of sort?
Also, the kit will be fabbed up. I obviously cant run a turbo in the 30+psi range, I will be happy with anything over 550rwhp, would love to nail 700 on pump gas everyday tune, even if I had to shoot some alky to keep it sane.
Thanks guys.
Charlie
Dave (MM) do you run a heat exchanger with your W2A IC? So I could hook a recirculatory pump into the W2A IC and have a more efficient setup, would it be wise to run it only in boost, or would it be ok to have it pump all the time? Is it just water you use in there, or a coolant mix of sort?
Also, the kit will be fabbed up. I obviously cant run a turbo in the 30+psi range, I will be happy with anything over 550rwhp, would love to nail 700 on pump gas everyday tune, even if I had to shoot some alky to keep it sane.
Thanks guys.
Charlie
you should get 550-600 @ around 15psi..good luck and have fun.
