Need honost HP & TQ numbers for stock turbo w/pump gas ONLY

[HRpartsNstuff]

I am looking for some real world (honost) HP and/or Torque numbers for a 231 V-6 TR with a stock turbo on pump gas. This would be at the 15-17 psi range max, and chassis dyno and/or engine dyno numbers welcome.

PLEASE, NO guessing and/or estimates, already got those

Also, prefer WITHOUT the aid of alcohol or other "power adders" like octane booster & such.

Also, it can be with just about any other upgrade, doesn't matter. Heads, headers, downpipe, injectors, regulator, adj wastegate, fuel pump, etc, etc..., just HAS TO BE a stk turbo.

PLEASE specify if using the stk intercooler, stk intercooler with neck mod, or aftermarket intercooler.

If you have a car weight & actual drag results, that helps too!

THANKS IN ADVANCE!!!!!!!!!!!

 

[HRpartsNstuff]

OK, how about some estimates, ideas, etc....

I was thinking around 350-400 HP

My bud was thinking 245-300 HP range

Anyone running pump gas with a 34 turbo?????

Anyone run the twin stk turbo setup from CAS on pump gas??????

Thanks-

 

[salvageV6]

I saw a bone stock T type, excepting an ATR cold air kit, run 270 RWHP at a dyno day in CT 2-3 years ago. I don't remember the torque.

Stock fuel pump and chip too.

 

[turbo buicks]

my friend Bob (BM Computer Src) told me he dynoed his bone stock GN a while back at 17 psi and it also had a KN and it hit 291 HP and 446 tq.

 

[HRpartsNstuff]

Thanks guys!

I am trying to see if I am kidding myself on doing a twin stk turbo V-8 setup on pump gas. I am shooting for 355 or 381 cu.in. If I figure on the 355 to be conservative, then it is 1.54 times the size of the 231. Soooo, if I can take the 291/446 figures times the 1.54, that gives me 448 HP, and 687 TQ. The 381 is 1.65 times the 231 size, making it 480 HP & 736 TQ.

Now one could only ASSume that it should be more with much bigger ported heads, but then again the stk GN heads are probably not much of a restriction at only 17psi. I will have more cam & spin the motor to 6500 (1000 over stk), so it should make more power, right? Or does that demand more of the turbo & make them fall off or over-spin??? Guess I should give John Craig a call again...

Anyone have chassis dyno figures around 480 HP & 736 TQ and know how fast the car goes???

Thanks again-

 

[UNGN]

Didn't "project X" have twin stock turbos? I thought it made near 600 HP (crank) on a stock block 231 (It blew up because of this).

Jay Carter or Scott Winsett could tell you more.

 

[HRpartsNstuff]

I believe they went closer to 700 hp, but I believe that was all done with race fuel. That's the part I can't figure. I need the power at lower boost & cheap gas. We all know it runs better when you turn it up, but my block/setup won't support more than that right now anyway.
THANKS

 

[blackbuick87]

Might need a small converter on that since you will only have 178 c.i. (355) to spin each turbo. Go with 3000 stall and let the smoke show begin!

I would say 500hp should be easy at only around 12psi. I wouldnt run more than that if you want it to be durable. Forged pistons and crank and 4 bolt mains, along with an intercooler would permit a bit more.

Are you going to use a TPI setup or DFI?

 

[HRpartsNstuff]

It will have forged pistons, steel crank, 4 bolt main, all the goodies. Really, the weakest point that will hold me back is the block. I don't have $2k to put into one right now, so I am keeping the boost limit at around 17 psi. Converter will be a true 3000-3200 stall @ 5 psi. I plan to convert a 4 bbl intake to DFI setup, got a REALLY big throttle body & upper plenum "elbow" already.

As for spoolup, they tell me with a pair of TE-60's, it will spool like MAD! so a pair of stockers should be super quick throttle response Just don't want them to be done at 4000 rpm and watch the boost drop off

Hoping to have this going next year, pieces coming together slowly

Thanks-

 

[Quick6'n'-K.C.]

Originally posted by HRpartsNstuff
OK, how about some estimates, ideas, etc....

I was thinking around 350-400 HP

My bud was thinking 245-300 HP range

Anyone running pump gas with a 34 turbo?????

Anyone run the twin stk turbo setup from CAS on pump gas??????

Thanks-

350-400 rear wheel horses on pump gas/ NO alky or octane boosters and 17psi with the stock turbo??????

IMPOSSIBLE!

mine[other car]was 20 -21 psi, stock turbo, intercooler,and injectors
i tuned it to a 340 horses with 104 octane, and 440 torque

so i'd say your buddy was right on the button with 245-300 at the rear tires.

just thought i would share

 

[HRpartsNstuff]

It seems I thought the stock turbo was a little bigger than it actually is. Movin' up to the 44's or 60-1's it seems, or???

A pair of TE-45A's would be nice, but I think the block would split in 2!

Looks like the stock intercoolers are not going to cut it either. Guess I will need to trade a lot more stuff to get all this together.

Thanks for all the input!