How many turbos can you cram...?

[Cajun JungleBoy]

i think spaceshuttles have like 16 turbos on their engines...

[bullitt482]

Single ball bearing Precision Turbo 60 mm turbo

[rydog]

Quote: Originally Posted by bullitt482 Single ball bearing Precision Turbo 60 mm turbo

that might be a little small most of us v6 guys are using at least a 61mm

[bullitt482]

My old boss is using a PT67 and it's WAAAAAAAAYYYY too big. The only way you know it's turbo'd is because of the intercooler and it makes a little bit of blow off sound. The turbo is just getting started with his application(stone stock 00 GT with about 9 lbs.). He did put over 400 at the wheels and almost 500 tq on a mustang dyno though, but still the turbo doesn't spool up as soon as it should.

I would thing PT60 would be great for the application on the PI motor previously discussed. :Idunno:

[rydog]

Mine has a 64mm inducer wheel, 54trim, .72A/R and I get full boost by 3700rpm and I am running a stock singleport motor

[Thomas91169]

Quote: Originally Posted by bullitt482 My old boss is using a PT67 and it's WAAAAAAAAYYYY too big. The only way you know it's turbo'd is because of the intercooler and it makes a little bit of blow off sound. The turbo is just getting started with his application(stone stock 00 GT with about 9 lbs.). He did put over 400 at the wheels and almost 500 tq on a mustang dyno though, but still the turbo doesn't spool up as soon as it should. I would thing PT60 would be great for the application on the PI motor previously discussed. :Idunno:

yeah, but he wont have to upgrade later when he wants to run more boost, its already ready already.

im going the other way with the gsx, its entire fuel, tuning and drivetrain will be ready for something big, but i will utilize the smaller 14b till im ready to do the changeover, and even then i start out with the new turbo small and work up to the larger power levels gradually. however the 14b is still a good turbo, it shines around 17-18psi and has been proven to do around 300 to the wheels with adequate support.

as for a single turbo on a V8 like the 281 (4.6) something stated above is perfect, not too shabby but still has potential to outlast a setup or two.

[SpectorV]

I want to drive an 03/04 cobra with 8-10 psi on a good turbo setup to compare its power curve to the eaton. I wonder how much different the power is and when it comes on. I know with a good setup I should peak psi rather fast, with my eaton I pretty much peak 8-10 psi as soon as I touch the gas

[Thomas91169]

it would be a totally different car. instead of a good linear pull from the moment you tapped the throttle till the shift, you would have all your pull mostly up top, where youd want it most for a race. but then it comes down to how often do you race it and need to sacrafice a fun driver for all out power?

from my experience, turbo cars arent that great for daily drivers. hard to zip through traffic when you have to wait for your power, then when that power comes on you whiplash and basically slingshot almost into the rear of the car youre trying to pass. liked the eaton on the cobra, just a flick of the throttle and youre jumping past fuckers in a very smooth linear motion. now if say, i had a cobra i wanted 600+hp out of to run people on the freeways and make all my other turbo buddies jealous, and it was not my daily driver, then yeah, i would probably go with a turbo setup. if i used it more of every day driving, id stick with a KB/Whipple, which would still make all my other turbo buddies jealous.

[PureVenom]

^^^ Thought you didn't have to wait for turbos to get power anymore with technology. *tosses log on fire*

[Cajun JungleBoy]

i was just about to say it lol

[bullitt482]

Quote: Originally Posted by PureVenom ^^^ Thought you didn't have to wait for turbos to get power anymore with technology. *tosses log on fire*

Actually Thomas is wrong. The only FI that you get a linear curve is with centrifugal blowers, where airflow is based on engine speed. With a roots or screwtype blower, the torque curve is flat and has boost off idle. With a lysholm supercharger, you get almost as efficient as a turbo with NO possibility of lag and doesn't generate half the heat of a roots, and it also produces a flat torque curve.

[Cajun JungleBoy]

someone knows their shit

[bullitt482]

I'll take Reasons the GT500 and Ford GT Blowers differ for 200 alex.


*edit* Nice sig there cajun boy

"Hello, my name is Mary, and I'm a true Ballsucker. "

[Thomas91169]

Quote: Originally Posted by bullitt482 Actually Thomas is wrong. The only FI that you get a linear curve is with centrifugal blowers, where airflow is based on engine speed.

linear by feel.........not the numbers. my cobra had a very consistent pull throughout the rpm band. im sure if i were to run more boost, the eaton would show its inefficiency up top and shine in the middle, but from where i was, it was smooth sailing throughout.

centri's are nice, but i havent seen many of them used in may high power applications like you see kb/whipple or turbo's. then again it might be because i hang out at svtperf most the time.

Quote: Originally Posted by PureVenom ^^^ Thought you didn't have to wait for turbos to get power anymore with technology. *tosses log on fire*

you still have lag/spool times, but its alot less if the turbo is properly sized for the application at hand.

[bullitt482]

Quote: Originally Posted by Thomas91169 centri's are nice, but i havent seen many of them used in may high power applications like you see kb/whipple or turbo's. then again it might be because i hang out at svtperf most the time.

Do you even watch drag racing at all?????? Procharger SPONSORS a specific class in NMRA. I'd say the fastest NMRA Outlaw guys run nitrous, centrifigal sc's, and turbo's just about as equally. I've NEVER seen a positive displacement blower run 8's, much less the 6's that Pro 5.0 runs with a centrifigal.

“I’m going to run it in Pro 5.0 and see what it can do. You never know when you might get lucky.” A 7.88 at 179.89 was the result of his first qualifying effort, but Schoneck has been as quick as 7.61 before, and we did see an F-3 box in the trailer…"

from nmraracing.com

That's with a reverse mount Procharger F-2.


Here's several other cars running high hp applications.

////// 2007 RACING NEWS ///




"Yes, that is a V6.... That runs 10's.... On a centrifigal blower.
Vortech announces a true mile marker in Mustang performance. Competing in the 6th Annual Nitto Tire Spring Ford Nationals at Bradenton Motorsports Park, driver Scott Baumgartner, piloted the Paul’s High Performance, Vortech-supercharged V6 Mustang to an astonishing 10.84@126 MPH in the quarter mile!"

Vortech Engineering:

And there are several other centri's that run 9's, 8's, 7's, and 6's in the 1/4.


Ever see a whipple, a kennebell, or a weiand in the 7 second zone?

[Thomas91169]

interesting........

what blowers do top fuelers run?

[1996stang]

Quote: Originally Posted by Thomas91169 interesting........ what blowers do top fuelers run?

Are they not made by whipple?