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-   -   GT Motorsports: 370Z Supercharger system development (http://www.the370z.com/forced-induction/8812-gt-motorsports-370z-supercharger-system-development.html)

Buddy Revell 02-27-2010 07:20 PM

Quote:

Originally Posted by Red370 (Post 420846)
I'd like somewhere between 340-350.

340-350 ft. lbs. to the wheels is about what TT'ed VQ37's put out at 6-7 psi. That's probably an unrealistic expectation for a centrifugal SC that builds up boost in a more linear fashion compared to twin-turbos that hit full boost much lower in the rpm range.

DannyGT 02-27-2010 07:32 PM

Quote:

Originally Posted by Buddy Revell (Post 420872)
340-350 ft. lbs. to the wheels is about what TT'ed VQ37's put out at 6-7 psi. That's probably an unrealistic expectation for a centrifugal SC that builds up boost in a more linear fashion compared to twin-turbos that hit full boost much lower in the rpm range.

He's 20whp shy of that right now with everything else stock...I dont see a problem with reaching that number when you consider everything else that will be added/retuned for. :confused:

Buddy Revell 02-27-2010 07:52 PM

Quote:

Originally Posted by DannyGT (Post 420877)
He's 20whp shy of that right now with everything else stock...I dont see a problem with reaching that number when you consider everything else that will be added/retuned for. :confused:

It's currently at 314 ft. lbs., and it's a bit harder to increase torque than peak whp with a centrifugal SC kit.

DannyGT 02-27-2010 08:01 PM

I understand, but asking for 20ish more wtq shouldnt be a problem with 2 more psi, a full exhaust system and even with meth like I plan on going. Its all in the tune..lets not forget this is only early stage 1 results.

biggersNISMO 02-27-2010 08:08 PM

Quote:

Originally Posted by DannyGT (Post 420903)
I understand, but asking for 20ish more wtq shouldnt be a problem with 2 more psi, a full exhaust system and even with meth like I plan on going. Its all in the tune..lets not forget this is only early stage 1 results.

That's what i keep on telling myself. ;)

BlackCherryZ 02-27-2010 08:18 PM

getting excited..............except it's missing one final ingredient..........

by far the most important one........... the price.......

not rushing it.....by all means, plz take your time and do what you are good at......but just crossing my fingers...........to have competitive price to dissuade me from going TT.....

also i like the sound of BOV of TT.......... but..........for the price, its too expensive......

we shall have to see.....

also, thanks for updating.......... or else, most of us would have shortened our lives by at least a couple of years due to stress and expectations......... *^^*

NYBladeZ 02-27-2010 08:29 PM

its all in the tune...and it seems that both GTM and Stillen are in the preliminary stages of tuning, oh well good things come to those who wait

Red370 02-27-2010 09:01 PM

Quote:

Originally Posted by Buddy Revell (Post 420872)
340-350 ft. lbs. to the wheels is about what TT'ed VQ37's put out at 6-7 psi. That's probably an unrealistic expectation for a centrifugal SC that builds up boost in a more linear fashion compared to twin-turbos that hit full boost much lower in the rpm range.

Its completely realistic with a centrifugal supercharger, the Vortech kits for the 350Z were making 440whp with 352 ft./lbs, our engine displaces more than the 3.5L, which leads me to believe that 350 ft./lbs is a very realistic number. I dont understand how we can have a larger engine and make less power with the supercharger. And BTW, this was using the same V-3 blower that Stillen is using.

Buddy Revell 02-27-2010 09:10 PM

Quote:

Originally Posted by Red370 (Post 420969)
Its completely realistic with a centrifugal supercharger, the Vortech kits for the 350Z were making 440whp with 352 ft./lbs, our engine displaces more than the 3.5L, which leads me to believe that 350 ft./lbs is a very realistic number. I dont understand how we can have a larger engine and make less power with the supercharger. And BTW, this was using the same V-3 blower that Stillen is using.

The numbers on Vortech's site are not to the wheels. Notice how they compare their numbers to the 350Z's factory bhp and torque ratings.
http://www.vortechsuperchargers.com/view.php?pcat=15

Red370 02-27-2010 09:16 PM

good point, but be that as it may, we should be making ALOT more bhp, and not around the same numbers.

SAM@GTM 02-28-2010 12:49 AM

Still running 8 psi, just spent some more time on the tuning, here is the latest graph so now we are at 420 RWHP and 330 RWTQ .

Sam


SAM@GTM 02-28-2010 12:58 AM

Quote:

Originally Posted by BlackCherryZ (Post 420926)
getting excited..............except it's missing one final ingredient..........by far the most important one........... the price.......

Sooner then you think.

Sam

Brazilbro 02-28-2010 12:58 AM

Still on stock exaust?! :excited: Im SOLD.. :nutswinger:

SAM@GTM 02-28-2010 01:00 AM

Quote:

Originally Posted by Brazilbro (Post 421283)
Still on stock exaust?! :excited: Im SOLD.. :nutswinger:

And stock cats ;) and this is still stage 1 .

Sam

Red370 02-28-2010 01:41 AM

Quote:

Originally Posted by SAM@GTM (Post 421273)
Still running 8 psi, just spent some more time on the tuning, here is the latest graph so now we are at 420 RWHP and 330 RWTQ .

Sam


Now those numbers are more like it! very good work gentlemen.


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