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How big are the BIG turbos you guys are running?

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Old 10-28-2004, 03:33 PM   #1
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Default How big are the BIG turbos you guys are running?

How big physically are the big turbos folks are running?

And the size of the turbo, like a 88mm, is that the size of the impeller?
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Old 10-28-2004, 03:35 PM   #2
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Quote:
Originally Posted by Pro Stock John
How big physically are the big turbos folks are running?

And the size of the turbo, like a 88mm, is that the size of the impeller?

thats how many M&Ms they eat in a minute..
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Old 10-28-2004, 03:40 PM   #3
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Quote:
Originally Posted by 8seclt1
thats how many M&Ms they eat in a minute..
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Old 10-28-2004, 03:42 PM   #4
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lmao @ 8seclt1
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Old 10-28-2004, 03:46 PM   #5
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NWS:

http://qsdqsd.free.fr/Funny/Img/m&m.jpg

'kay, how big?
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Old 10-28-2004, 03:47 PM   #6
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John, I can get you all the info you need. We deal with DR class cars and some of the cheater turbos. Most are running 88mm inducers, but most of the big turbo guys are running cheater class units, which are 91's and 94's shaved down. Physically....here you go...

Click the image to open in full size.


Click the image to open in full size.

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Old 10-28-2004, 03:48 PM   #7
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Oh forgot to explain.....from left to right

T91, GT47-88, PTE88, T67
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Old 10-28-2004, 03:50 PM   #8
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All of a sudden I have a craving for those M&M's. Wonder if I can get those at the local walmart....
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Old 10-28-2004, 03:51 PM   #9
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Quote:
Originally Posted by Pro Stock John
An admin posting a NWS what a hipicrit.
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Old 10-28-2004, 03:52 PM   #10
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Nice M&M's eh? Me LIKE.

What are the physical dimensions of those turbos? Is that PTE88 have an 88 inducer/wheel???
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Old 10-28-2004, 03:53 PM   #11
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Yes the PT88 has an 88mm inducer.

I will try to get the physcial dimensions posted up on the site today if I can get them.

Jose
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Old 10-28-2004, 04:40 PM   #12
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Why is it that Turbos can make much more power( and move more air) than blowers with the same size inducers? For instance my G-trim Vortech has about a 78mm inducer. Max rpm of about 65,000 to maybe 70,000 for my Unit. I suspect the rpm limit for the superchargers is mainly for the gear drive drive system, but which also limits how much flow it's capable of with a given impeller size.
A turbo with that same size inducer seems to be able to flow much more air.
Is this because the turbo can spin a lot faster and thus move more air with the same size inducer?

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Old 10-28-2004, 04:44 PM   #13
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Yeah.... a turbo can reach over 100,000rpms.

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Old 10-28-2004, 07:20 PM   #14
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i too, have wondered what they are measuring!
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Old 10-28-2004, 07:21 PM   #15
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Let's not forget the HP needed to actually spin the blower is alot more than you lose from the backpressure created by the turbo.
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Old 10-28-2004, 07:25 PM   #16
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Good point also Harlan, a blower drags a good bit on the motor. A probably built setup is only going to see a 2:1 backpressure ratio rise, which is not much of a restriction. Now a log style setup can see as high as 4:1 backpressure ratio which robs hp from the turbo setup, but its still going to be as good or better then a blower.

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Old 10-28-2004, 08:21 PM   #17
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i've heard a blower setup making in excess of 1600 hp, can be robbing as much as 300 hp at the flywheel!!!

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Old 10-28-2004, 08:28 PM   #18
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Quote:
Originally Posted by PRAY HRD
i've heard a blower setup making in excess of 1600 hp, can be robbing as much as 300 hp at the flywheel!!!

Dave

bleh... I guess thats the price you pay for instant power. I don't really get it though. Superchargers are cool, but our motors are pushing enough air to bring lag to a minimum. I personally went turbo and I'm happy with my decision.
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Old 10-28-2004, 09:23 PM   #19
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Quote:
Originally Posted by 8seclt1
thats how many M&Ms they eat in a minute..
BWAHAHAHAHA!!!
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Old 10-29-2004, 08:27 AM   #20
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Quote:
Let's not forget the HP needed to actually spin the blower is alot more than you lose from the backpressure created by the turbo.
yeah that may be the single largest reason. MM&FF MAG has a real good tech article this month. They ran a test on 4 different forms of forced induction on a Cobra mod motor. Eaton vs Kenne Bell vs Vortech T-trim vs a pair of 57mm turbos all at the same 11psi. The eaton and kenne Bell made the best off idle low end with the kenne Bell killing the eaton on the top end, the Vortech beat the Kenne Bell on the top end by a good margin and the turbo's made another 70hp more than the T-trim at the same 11psi.
Looks like Turbos simply are the top dawg. The turbos made more power over the Eaton than the Eaton did over N.A. at the same psi!
That is pretty impressive!
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