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Tried a search and I couldn’t find much on this. 2002 camaro 5.3 on3 kit will have stood up radiator and stock crank pulley. (Engine/ turbo/ radiator) not yet installed in the car
how would I go about moving or repositioning an ON3 turbo t4 flange? Was looking at the VS s480/96 T4 turbo.
I believe HOSTILL has done it but i wasn’t sure how it was done.
figured if I’d sell the pt88 i bought used with the kit then I could buy the vs turbo and modify the t4 flange without breaking the bank
I have the feeling you're going to have to work this out on your own.
If you're standing up the radiator that will give you sufficient room, if the hotside is intended for a 78/75 style turbo you'll need to address the additional weight of the S480 as the On3 piping most likely won't be enough to support it on its own.
I'd bolt up the hotside and get some dims on the S480 and start there.
Honestly, if you're going to do all that I'd just sell it all off and start with a T6 specific kit from Huron Speed.
Fitment is excellent, this is with an S484.
I have the feeling you're going to have to work this out on your own.
If you're standing up the radiator that will give you sufficient room, if the hotside is intended for a 78/75 style turbo you'll need to address the additional weight of the S480 as the On3 piping most likely won't be enough to support it on its own.
I'd bolt up the hotside and get some dims on the S480 and start there.
Honestly, if you're going to do all that I'd just sell it all off and start with a T6 specific kit from Huron Speed.
Fitment is excellent, this is with an S484.
amazing looking setup. And I’ll look into the T6 but just was trying to use what I had for now without breaking the bank too bad. Thanks for the input
I don't think you'll have an issue; you may have to play with the angle a bit but fabbing up a support mount for the turbo will be the big thing because these S-series turbos are heavy.
The compressor housing on the S480 is pretty big and may get into your accessory drive assuming you have the A/C delete kit.
The down pipe from the 78/75 to the S480 is way different too, 3" for the 7875 to a 5" for the S480 iirc.
You could go with the new billet VS Racing 7875 and it would make some serious power and be a bolt in affair.
I don't think you'll have an issue; you may have to play with the angle a bit but fabbing up a support mount for the turbo will be the big thing because these S-series turbos are heavy.
The compressor housing on the S480 is pretty big and may get into your accessory drive assuming you have the A/C delete kit.
The down pipe from the 78/75 to the S480 is way different too, 3" for the 7875 to a 5" for the S480 iirc.
You could go with the new billet VS Racing 7875 and it would make some serious power and be a bolt in affair.
yes all ac is removed. Still have power steering pump for now and alternator is relocated.
we’ll I have 4 inch down pipe that came with the pt88. Maybe I could rig that up some how to use it with the bigger turbo.
how would that vs 7875 compare to the pt88. I understand the pt88 is old technology?
my thing is to do it right the first time while I have everything out of the car and just do it all at once.
That PT88 is really old tech and probably a cast wheel.
The perfect balance between compressor and turbine is the S480 with the 96mm turbine wheel, any compressor wheel larger than the 80 overruns the turbine but that's fully maxxed out.
The VS 7875 unit is a very nice piece, 78mm billet wheel, will accept the 4" down pipe, bolt right in and spool up really quickly.
Figure 20% losses through an auto so 800whp maxxed out, plenty of power to put a semi well sorted chassis well into the 9's possibly 8's.
The PT88 claims 1,250 horsepower capable, the 7875 is probably good to 1,000 at the crank on a 5.3.
The S480 you're looking at will probably top out around 1,100-1,200 hp will have a 5" outlet but you can kinda see in my pic, mine also exits 5" but necks down to 4" about 3-4" from the flange.
You could just run the PT88 and see how it does then upgrade later?
Putting the car together one time and being set most likely isn't going to happen, there's always little issues that pop up and good deals on turbos you come across lol.
That PT88 is really old tech and probably a cast wheel.
The perfect balance between compressor and turbine is the S480 with the 96mm turbine wheel, any compressor wheel larger than the 80 overruns the turbine but that's fully maxxed out.
The VS 7875 unit is a very nice piece, 78mm billet wheel, will accept the 4" down pipe, bolt right in and spool up really quickly.
Figure 20% losses through an auto so 800whp maxxed out, plenty of power to put a semi well sorted chassis well into the 9's possibly 8's.
The PT88 claims 1,250 horsepower capable, the 7875 is probably good to 1,000 at the crank on a 5.3.
The S480 you're looking at will probably top out around 1,100-1,200 hp will have a 5" outlet but you can kinda see in my pic, mine also exits 5" but necks down to 4" about 3-4" from the flange.
You could just run the PT88 and see how it does then upgrade later?
Putting the car together one time and being set most likely isn't going to happen, there's always little issues that pop up and good deals on turbos you come across lol.
lol you ain’t lying bro. Ya that’s probably what I’ll do is put it together and then start taking weight out I’ve also take some weight out of it and I will probably start buying the brakes and more suspension on it and see what else I can cut off lol. Thanks for the response I appreciate it. Maybe this Black Friday coming up I could get into a huron T6 if everything goes well on this setup
That's really the best plan, even that little 5.3 would benefit from a T6 flange.
Pro Stock John is running a 5.3 with a billet FIS S480 and plans to turn 8,500rpm and run 7's and his combo isn't wild at all.
The PT88 will make power no doubt and who knows, it may get you where you want to go.
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On3 kit upgraded flange 
