Forced Induction - How big are the BIG turbos you guys are running?




Pro Stock John
10-28-2004, 03:33 PM
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?


8seclt1
10-28-2004, 03:35 PM
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..

maddboost
10-28-2004, 03:40 PM
thats how many M&Ms they eat in a minute..
:jest:


dynedta
10-28-2004, 03:42 PM
lmao @ 8seclt1

Pro Stock John
10-28-2004, 03:46 PM
NWS:

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

'kay, how big? :)

JZ 97 SS 1500
10-28-2004, 03:47 PM
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...

http://forcedinductions.com/images/PTEcomparison.jpg


http://forcedinductions.com/images/PTEcomparison2.jpg

Jose

JZ 97 SS 1500
10-28-2004, 03:48 PM
Oh forgot to explain.....from left to right

T91, GT47-88, PTE88, T67

JZ 97 SS 1500
10-28-2004, 03:50 PM
All of a sudden I have a craving for those M&M's. Wonder if I can get those at the local walmart.... ;)

maddboost
10-28-2004, 03:51 PM
NWS:

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

'kay, how big? :)
An admin posting a NWS what a hipicrit. :jest:

Pro Stock John
10-28-2004, 03:52 PM
Nice M&M's eh? Me LIKE. :)

What are the physical dimensions of those turbos? Is that PTE88 have an 88 inducer/wheel???

JZ 97 SS 1500
10-28-2004, 03:53 PM
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

S_J_H
10-28-2004, 04:40 PM
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?

Steve

JZ 97 SS 1500
10-28-2004, 04:44 PM
Yeah.... a turbo can reach over 100,000rpms.

Jose

blackz93
10-28-2004, 07:20 PM
i too, have wondered what they are measuring! :nod:

y2khawk
10-28-2004, 07:21 PM
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.

JZ 97 SS 1500
10-28-2004, 07:25 PM
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.

Jose

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

Dave

Armageddon
10-28-2004, 08:28 PM
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.

CHRISPY
10-28-2004, 09:23 PM
thats how many M&Ms they eat in a minute..
BWAHAHAHAHA!!! :D :lol:

S_J_H
10-29-2004, 08:27 AM
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!
Steve

granitemonkey
10-29-2004, 09:39 AM
NWS:

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

'kay, how big? :)
:D :funny: :drool:

SS Mark
10-30-2004, 01:25 AM
Why is the GT47-88 so much bigger than the PTE-88? Will the PTE88 fit w/ the PTK gen 2 kit with out problems or will it be a hassle?
Thanks
-Mark

JZ 97 SS 1500
10-30-2004, 11:31 AM
The PTE 88 could possibly fit with the Gen 2 kit but the DP will have to be modified. The PTE88 only comes in 2 different flange options. One is a 4" V-band, which will require fabbing a whole new DP, so thats a little out of the question, since their is zero room through the stock LS1 k-member. The viable option is the PTE88 with the 4 bolt donut flange, which is 3". That will allow you to cut the v-band flange off the DP and weld a donut flange in its place and use the PT88. PTK does not offer this as an option, but it can be done. I myself did that mod to my current system, and it fits like a glove with the Gen 1 at least. The Gen 2, I will have to look at.

BTW, the GT47 is much bigger since that turbo is based on a detriot diesel chassis.

Jose

The Guy in MY 99TA
10-30-2004, 01:20 PM
Can I have an order of than t91? I would settle for 2 of teh t67's but I'de prefer that 91!!!!

Josh S.

SS Mark
10-30-2004, 05:40 PM
The PTE 88 could possibly fit with the Gen 2 kit but the DP will have to be modified. The PTE88 only comes in 2 different flange options. One is a 4" V-band, which will require fabbing a whole new DP, so thats a little out of the question, since their is zero room through the stock LS1 k-member. The viable option is the PTE88 with the 4 bolt donut flange, which is 3". That will allow you to cut the v-band flange off the DP and weld a donut flange in its place and use the PT88. PTK does not offer this as an option, but it can be done. I myself did that mod to my current system, and it fits like a glove with the Gen 1 at least. The Gen 2, I will have to look at.

BTW, the GT47 is much bigger since that turbo is based on a detriot diesel chassis.

Jose

Well I have an LT1 if that makes any difference, I will probably end up going with the 76GTS but was just curious as to how and if the 88 would work. Thanks for the reply.

EDIT: sorry I read again and saw you are referring to an LT1, you just got me confused when you mentioned an LS1 k-member lol :)
BTW: how is spool/lag on the 88 compared to the 76? I know it will spool higher but just curious as to how much, t88 sounds so tempting :hump:
-mark

red90cobra
10-30-2004, 10:41 PM
Jose I Pmed you. Never got a reply though. I need you help selecting a turbo. And need it soon. THanks.

JZ 97 SS 1500
10-31-2004, 12:16 AM
Mark, the added lag from a 88 is about 300-600rpms more depending on compression, cam and cubes.


Blue99Ws7, when did you send it??

Jose

WS-Sick
10-31-2004, 08:52 PM
I sent one as well but then I saw a spot to post questions on the site. Ignore the question about your location please. :jest:

mongse
10-31-2004, 09:42 PM
I've seen one of those 67s before...can't remember where though. ;)

Richiec77
11-03-2004, 01:05 AM
NWS:

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

'kay, how big? :)


Are you going to measure those!!!!!!!!!!!!!!!! :drool: :drool: :rock: :naughty: