pyro719

iTrader: (5)

Anybody running this on a 5.3 ? Looking for info on spool time and power

yenkomike

iTrader: (2)

I have seen the on3 t4 88 on a 5.3 . my buddys camaro ran 9.17 with it on 23 psi . but he ran 9.40 with the 78/75 at the same boost.the 88 spools much slower. I think those big turbines need the devided hot side of a t6 to spool decent.

JoeNova

Even with the large 96mm wheel and 1.25 A/R T4, it likely won't make any peak power over the billet 80mm.

svslow

I've talked to 3 people who went faster with the VS 80mm over the 88mm on 5.3's.

Tjabo

He has several 80s now. Are you referring to this one?:
https://turbo4less.com/product/vsr-8...let-t6-1-32ar/

Or this one?:
https://turbo4less.com/product/vsr-8...ar-t4-divided/

Or maybe this one?:
https://turbo4less.com/product/new-r...ne-wheel-1-25/

svslow

The S480 clone, 96/88 1.32 A/R T6. First link you have there. I am running one on my 5.3 now.

Game ova

ET is only part of the picture. What did the trap do though? That's what really gives us the game on what a car is making power wise.

Tjabo

Thanks!

ls3fox

liketowork

iTrader: (4)

I have a new VS T4 96/88 billet 1.25 ar but in the middle of upgrading the car. 5.3 iron block but its board to 3.905 with K1 crank H beam rods dish pistons 799 heads ported 2.5 with race flow valves Cam Motion solid roller turbo cam. I am adding to my cage and doing tube front end to make room so it will be a couple months before I get it all together and up to vengeance racing for the dyno tune.

svslow

I was referring to the VS S480 versus the VS S488.

Forcefed86

iTrader: (4)

In for infro...

Aside from spool time... My VSR 1.32 T6 S480 made no more power (that I could tell anyway, only ran up to 20lbs) than the previous "real" Borg S476 with the 96/88 wheel and 1.25 T4. I have basically identical traps at like boost on the same chassis and engine size. Major difference being the smaller compressor wheel and housing setup spooled quicker. I'm guessing if you were maxing out the S480 (which most don't do) you might get a bit more umpth from the larger compressor wheel S488. Can't see the 88 or even the 80 being necessary for most. Nice billet "76" has made 1200ish... If you want more, step up to the exh. wheel size IMO.

svslow

I would like to see what the 100mm turbine would do the the VS S480.

Forcefed86

iTrader: (4)

I hear ya.. but they are sure proud of those! The lighter weight and less expensive On3 103mm stuff has caught my eye...The cast wheel 94mm seems super reasonable and have the nice light weight SS Vband housing.

yenkomike

iTrader: (2)

143 for the 78/75 146 for the 88mm. 78/75 will run the same numbers in the 1/8 mile 117 ish. but to be honest the 212 cam is done at the finish line

3 window

iTrader: (1)

Game ova

I went from a billet precision 7675 to the on3 7875, and lost 50rwhp and made the same torque. Same dyno was used.

Tjabo

Is that a billet wheel 7875 from on3, like the billet wheel 7875 from VS?

Game ova

I got the cast on3.

Tjabo

Wow, so from the billet Precision 7675 to a cast wheel china 7875 you lost 50hp... NOT BAD!! Thank you for sharing.

What power range are we talking about?