PT76 Upgrade
#1
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If I wanted to upgrade an old 7675 and maintain the T4 flange, whats a option that sort of fits in the PT76 footprint?
I have been looking at this guy, but not sure how much larger it is
https://turbo4less.com/product/vsr-7...87x82-turbine/
I have been looking at this guy, but not sure how much larger it is
https://turbo4less.com/product/vsr-7...87x82-turbine/
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blackdak318 (03-01-2021)
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#8
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The unit you linked is based on a Borg S4xx style unit which will be quite a bit larger then the PT76 you have now.
If you want the same physical footprint of what you have now, look at the VS Next Gen billet 7875.
https://turbo4less.com/product/vsr-n...n-7875-billet/
Performance would be pretty close to a billet precision unit of the same size.
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ls13ater (03-01-2021), The BallSS (03-01-2021)
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I've got a buddy with an 4th gen f-body running a merged T4 setup, he won a brand new VS Racing 85/96 T6 unit in a raffle recently and is looking at welding on a T6 plate to get going but is worried about responsiveness.
Will the merged T4 hotside to the T6 divided housing make spooling slower than normal?
Is there any advice you can offer?
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The BallSS (03-01-2021)
#12
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Hey Slow Sedan, what's been your experience with using flange adapters more accurately T4 to T6?
I've got a buddy with an 4th gen f-body running a merged T4 setup, he won a brand new VS Racing 85/96 T6 unit in a raffle recently and is looking at welding on a T6 plate to get going but is worried about responsiveness.
Will the merged T4 hotside to the T6 divided housing make spooling slower than normal?
Is there any advice you can offer?
I've got a buddy with an 4th gen f-body running a merged T4 setup, he won a brand new VS Racing 85/96 T6 unit in a raffle recently and is looking at welding on a T6 plate to get going but is worried about responsiveness.
Will the merged T4 hotside to the T6 divided housing make spooling slower than normal?
Is there any advice you can offer?
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The BallSS (03-01-2021)
#13
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2in SCH10 hotside, up to a billet T4 flange.
I still run the stockish radiator setup so very hesitant to chop things up to fit a much larger turbo.
Was thinking an old PT88 perhaps or a chyna clone
https://turbo4less.com/product/vsr-8...88-t4-1-25-ar/
I still run the stockish radiator setup so very hesitant to chop things up to fit a much larger turbo.
Was thinking an old PT88 perhaps or a chyna clone
https://turbo4less.com/product/vsr-8...88-t4-1-25-ar/
Last edited by Shownomercy; 03-01-2021 at 06:48 PM.
#14
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2in SCH10 hotside, up to a billet T4 flange.
I still run the stockish radiator setup so very hesitant to chop things up to fit a much larger turbo.
Was thinking an old PT88 perhaps or a chyna clone
https://turbo4less.com/product/vsr-8...88-t4-1-25-ar/
I still run the stockish radiator setup so very hesitant to chop things up to fit a much larger turbo.
Was thinking an old PT88 perhaps or a chyna clone
https://turbo4less.com/product/vsr-8...88-t4-1-25-ar/
#15
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I wonder if a hybrid turbo isn't the answer, depends on how much you want to spend as well?
A local guy has a 4th gen f-body w/ a 408" LS / T56 trans and the turbo is mounted down where the AC compressor is usually located next to the engine.
The turbo is a precision unit with an 80mm compressor / 96mm turbine T4 flange but physically isn't much bigger if at all then a Turbonetics T7875.
Turbo Technology here in Tacoma, WA built the kit and supplied the turbo, car made just over 1,000whp on race gas on a soft tune so it makes power.
I'd imagine you'd have to inquire with PTE directly since its unlikely that's something they'll have sitting on the shelf.
Brace yourself as well because it probably won't be cheap but when weighed against completely changing your setup it might make sense.
A local guy has a 4th gen f-body w/ a 408" LS / T56 trans and the turbo is mounted down where the AC compressor is usually located next to the engine.
The turbo is a precision unit with an 80mm compressor / 96mm turbine T4 flange but physically isn't much bigger if at all then a Turbonetics T7875.
Turbo Technology here in Tacoma, WA built the kit and supplied the turbo, car made just over 1,000whp on race gas on a soft tune so it makes power.
I'd imagine you'd have to inquire with PTE directly since its unlikely that's something they'll have sitting on the shelf.
Brace yourself as well because it probably won't be cheap but when weighed against completely changing your setup it might make sense.
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I’ve not seen much gain with say billet wheel 7675 vs old 76gts cast wheel turbos. Guys were going 140-150 with the gts many moons ago. Anyone have any back to back data or tests? It always seems to be that the turbine is the limit on a ls v8. Pte’s gen 2 turbine might help or maybe the newer comp turbine but not much info on those.
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The BallSS (03-03-2021)
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