blew the powerdine up today.

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SHOMurph

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TT SHO PROJECT said:
polished blower= hotter discharge temps, it may look a heck of a lot better but it make the charge air temp alot hotter.

gots meez a water to air intercooler.

All cool!
 

Revere sho

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HotRodKid said:
PD's are one of the lowest forms of superchargers

shit warranty
shit fitment
shit quality control

AND MOST IMPORTANTLY is that theuir impellers were designed by screwing ray charles .... the impellers / housings are HORRIBLY innefective

if you were to take a car, say a late 90's LS1 camaro, buy a supercharge kit from powerdyne, paxton AND vortech, and install the kits one at a time

(ie, install powerdyne - dyno - remove --install paxton - dyno - remove ....)

gues which kit puts down the WORST numbers .... BY FAR ...

yup .... the Powerdyne!

and oh yea, read some powerdyne reviews : http://www.carreview.com/cat/parts/...rgers/Powerdyne/PRD_2186_2877crx.aspx#reviews


i always come into these conversations late but hey when i had that powerdyne, my car moved. i blew the doors off of plenty of cars in my area.
 

TT SHO PROJECT

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DHMag said:
ive been looking for a cheap supercharger unit to install on my late 70s smallblock Chevy....
powerdyne=THE CHEAPEST blower. but if you get one and want it to last keep the boost to 6psi.
 

SHOMurph

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DHMag said:
ive been looking for a cheap supercharger unit to install on my late 70s smallblock Chevy....

Dale we need to throw a big ol' "poking thru the hood" roots on that bad boy!!!

Then we'll get you about 20 sets of head gaskets!!!

VRROOOMMM!!!
 

Jonny Cash

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turbo Bob said:
polished blower= hotter discharge temps, it may look a heck of a lot better but it make the charge air temp alot hotter.

How do you figure? Im sorry I dont beleive that. The texture of the metal matters as far as dissapating heat? hmm... maybe thats over my head? The blower is cooled by motor oil anyway.

turbo Bob said:
powerdyne=THE CHEAPEST blower. but if you get one and want it to last keep the boost to 6psi.

Yea idk. Ive seen cheaper brands. They need their scheduled maintnence anyway.. might as well spin that sucka, and maintain it on time.

DHmag said:
ive been looking for a cheap supercharger unit to install on my late 70s smallblock Chevy....

make an offer. :)

And Corey. Weve already come to the conclusion that my white car NA, was faster than you car with 9psi :evilgrin: You need to give me a call buddy :thumb:
 
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DHMag

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SHOMurph said:
Dale we need to throw a big ol' "poking thru the hood" roots on that bad boy!!!

Then we'll get you about 20 sets of head gaskets!!!

VRROOOMMM!!!

and ruin the sleeper look ? nahhh...
 

Mike Kopstain

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They specifically used smaller filters to limit boost / airflow up higher for the "9psi / 12psi" kits. They also used to ship a reducer piece (have one in the junk pile). The theory was, use a 15psi pulley to spin up faster, put a reducer to limit airflow up high. Problem with the PD is using the smaller pulley is still overspinning the blower.
That has to be the most ******** thing I've ever heard. Does Vadim know anything about adiabatic efficiency, parasitic loss, timing even? Think of the three major things going against the SS kits:

1. Adiabatic efficiency - Overspun blower is basically just a hot air pump and most kits weren't intercooled. Not only that but restricting it causes even more friction and more heat!

2. Parasitic loss - Overspinning the blower means the engine is working harder than it has to and putting un-needed additional stress on the motor.

3. Added timing - Yes, that's right folks, let's add timing when we put a supercharger on.

It's amazing the engines lasted as long as they did. I get sick when I hear the oldies saying how Vadim pioneered the way for these cars. If his products are any indication of his competence he didn't know his head from a hole in ground.

As much as I disagree with Doug Lewis about everything at least he has the knowledge not to do ******** stuff like the above.

Uggghhh. These cars could have been so much faster in their hey-day if it weren't for people putting their trust in the wrong vendor...

Hindsight... 20/20
 

DDakRT

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Mike Kopstain said:
That has to be the most ******** thing I've ever heard. Does Vadim know anything about adiabatic efficiency, parasitic loss, timing even? Think of the three major things going against the SS kits:

1. Adiabatic efficiency - Overspun blower is basically just a hot air pump and most kits weren't intercooled. Not only that but restricting it causes even more friction and more heat!

2. Parasitic loss - Overspinning the blower means the engine is working harder than it has to and putting un-needed additional stress on the motor.

3. Added timing - Yes, that's right folks, let's add timing when we put a supercharger on.

It's amazing the engines lasted as long as they did. I get sick when I hear the oldies saying how Vadim pioneered the way for these cars. If his products are any indication of his competence he didn't know his head from a hole in ground.

As much as I disagree with Doug Lewis about everything at least he has the knowledge not to do ******** stuff like the above.

Uggghhh. These cars could have been so much faster in their hey-day if it weren't for people putting their trust in the wrong vendor...

Hindsight... 20/20

Maybe the PD were overspun, but not the Vortechs. But ya, the smaller filter were used to limit airfow.

As for the cars having the potential to be so much faster, sure, no other vendors stepped up though. Only thing available was to get the best/only setup available and improve upon it themselves.
 

Mike Kopstain

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Maybe the PD were overspun, but not the Vortechs. But ya, the smaller filter were used to limit airfow.
That's only one of the limitations of the kit though. Even the Vortech superchargers were spitting out significantly hotter air than necessary because of the "boost limiting" measure.
 

DDakRT

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Mike Kopstain said:
That's only one of the limitations of the kit though. Even the Vortech superchargers were spitting out significantly hotter air than necessary because of the "boost limiting" measure.

Ya, don't doubt that. So you should just get a bigger filter and an aftercooler. :)
 

Jonny Cash

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Mike Kopstain said:
Uggghhh. These cars could have been so much faster in their hey-day if it weren't for people putting their trust in the wrong vendor...

Its not like SHO owners had much of a choice.. If Im not mistaken, It was custom, or SHOshop.. Who else sold SC kits back then? You?
 

Mike Kopstain

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Its not like SHO owners had much of a choice.. If Im not mistaken, It was custom, or SHOshop.. Who else sold SC kits back then? You?
There is a choice. Educate yourself and understand what you're installing on your vehicle.
 

Jonny Cash

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Mike Kopstain said:
Uggghhh. These cars could have been so much faster in their hey-day if it weren't for people putting their trust in the wrong vendor...

Mike Kopstain said:
Educate yourself and understand what you're installing on your vehicle.

not trying to nitpick.. just understand. How come Midwest SHO didnt correct the problems that SS made then? Not worth it?

As far as educating MYself, for MY car.. hey.. I try. (obviously not for the vendors to sell stuff for people that want a direct bolt in) In the GTP world you must know a few of those guys..

I cant see that many others out there with a custom aluminum setup like mine. I know a few, but those are the guys who dont want to give away their ideas in fear of someone actually capitolizing on them, and not wasting them.
 

Mike Kopstain

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not trying to nitpick.. just understand. How come Midwest SHO didnt correct the problems that SS made then? Not worth it?
By the time we got into the game the market would not bear a $4000 supercharger kit any longer.

As far as educating MYself, for MY car.. hey.. I try. (obviously not for the vendors to sell stuff for people that want a direct bolt in) In the GTP world you must know a few of those guys..
Sorry, I wasn't trying to get personal. I hope it didn't come of that way.

I know a few, but those are the guys who dont want to give away their ideas in fear of someone actually capitolizing on them, and not wasting them.
The SHO community is past that point market-wise.

I installed a GTP Killer!!!
Your what hurts?
 

SHOMurph

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Mike Kopstain said:
Your what hurts?

my feelings are hurt that I keep beating these GTPs.

Sorry it isn't fair picking on cars with knives coming to a gunfight with my SHO.

:rofl:
 

Jonny Cash

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Mike Kopstain said:
Sorry, I wasn't trying to get personal. I hope it didn't come of that way.

Not really. I guess there just wasnt enough demand to make an SC kit for the SHO the right way, enough for someone to get up and do it.

The FPS kit seems to be good. Are those kits selling? I never hear any kind of feedback on them. Ive yet to see one person local or online running one. It seems to me that theres a small (but still a decent amount) amount of people spending money... So wheres all these boosted SHO's?
 
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