Thunderbird Supercharger????

[stangeater]

Okay, don't slam on me here, I'm just wondering...................Has anybody ever tried to put a eaton supercharger on a sho, or is it even possible?? They look like they would have to bolt up to the intake? They're just a dime a dozen on ebay and so cheap to buy????????????????????????? Remember, if this is a dumb question, you don't have to **** me over it....

 

[NotSoSlowSHO]

not an easy task. And no, they do not bolt up to the stock intake.
But yes, they are relatively cheap.

Check my sig for a link "M90 SHO". It is an ongoing project creating an Eaton Blown SHO

 

[stangeater]

Okay, I get it! Your sig was enough of an answer! You're a master fabricator!

 

[x182dan]

ya umm don't do it unless you are a master fabricator the tbird supercharger sits on top of the intake and you would have to fab up your nice looking SHO intake and you wouldn't want to do that would ya?

 

[somedude_001]

it is a beautiful intake but its heavy as ****, my brother is probably going with a top mount and custom intake come summer time, his cobra blower that he was soposto get just fell through so now he needs to find another

 

[NotSoSlowSHO]

ya umm don't do it unless you are a master fabricator the tbird supercharger sits on top of the intake and you would have to fab up your nice looking SHO intake and you wouldn't want to do that would ya?

My eaton blown SHO project uses the stock SHO intake.

 

[x182dan]

My eaton blown SHO project uses the stock SHO intake.

how???

 

[NotSoSlowSHO]

clicky:

http://www.bonnefin.org/kwb2/M90projectSHO.htm

 

[somedude_001]

refer to his sig please it has pictures

 

[x182dan]

I do not see any pictures of the supercharger on the car

how much boost does the car see? I imagine you had to slow the supercharger down a lot?

 

[NotSoSlowSHO]

That page I linked to had two links within it. Two pages of updated progess.

Here is a pic of the blower during a "mock-up" stage.

With the large front mount innercooler, Im hoping for max of 9-10 PSI.

The factory pulley on this M90 (from a pontiac GTP) allows for near perfect operation with the SHO engine as far as RPMs go. It is nearly a 2:1 pulley ratio. And the blower maxes out at 14k rpm.

 

[yamahaSHO]

It'll never work



















































JK... I can't wait to see it in person. Yes, I'll make a trip out to Cali ;-)

 

[Super Matty P]

Hey Kenny, I see you got the clutch picture in there! That's my little contribution to the project!

p.s. I do a lot of supercharger stuff for mazdas and I've found that when you take a roots blower like this and discharge it to a tube that will feed a stock intake that you lose a LOT of power. The air has time and is able to de-compress some on it's way to the engine. When directly on the intake manifold it's basically crammed straight into the intake valves. If you're going to be running that large FMIC I'd run that blower at least 15-18psi to see some good gains. Just use some good synthetic gear oil in the blower and you should be fine.

post more pics as soon as you can. Ive got my own little SHO-FI project going on.

 

[dmbturbo69]

Someone sold a white sho in VA with eaton supercharger on ebay about a year ago, I called and he said someone from OH picked it up

 

[Off Road SHO]

It's true, you don't get the full effect of the Eaton's positive dispacement when you move it far away from the intake valves. You get a lag of sorts, and the Yamaha is such an efficient air mover that I don't get much positive boost unless I'm under a heavy load. It's like I can hear my motor talking to me; "oh, cool, 8 psi of boost. I can use that up easily. What else you got".

Tom

 

[JEM]

p.s. I do a lot of supercharger stuff for mazdas and I've found that when you take a roots blower like this and discharge it to a tube that will feed a stock intake that you lose a LOT of power. The air has time and is able to de-compress some on it's way to the engine. When directly on the intake manifold it's basically crammed straight into the intake valves. If you're going to be running that large FMIC I'd run that blower at least 15-18psi to see some good gains. Just use some good synthetic gear oil in the blower and you should be fine.

How the **** are you going to get 15-18psi out of that Eaton blower? It's on the downside of its adiabatic efficiency curve by the time you get to 12psi. Much beyond that and you're going to be heating the air more than pressurizing it, and IIRC any pulley setup that'll get you 15-18psi on a SHO motor is going to spin that blower 50% past its redline at 7200 engine RPM. The T-Bird SC's 3.8 was an wheezy, bad-breathing, low-revving piece of garbage (though the blower setup was pretty nicely done.) The Buick V6 is a better engine, but the intercooler-less blower installation is a very cost-sensitive design.

Intake tract length alone - remember, that big intercooler adds considerably to the volume/length - doesn't have a lot to do with pressure drop in the intake passages. Turns and restrictions in the passages do (and the SHO's intake design is a very twisty layout) and to the extent that any of that plumbing is hotter than the air passing through it, as the air heats it will lose density. You also need to make sure whatever plumbing it's connected to is big enough at the blower discharge to handle the pressure spikes the internal-compression blower creates.

 

[x182dan]

How the **** are you going to get 15-18psi out of that Eaton blower? It's on the downside of its adiabatic efficiency curve by the time you get to 12psi. Much beyond that and you're going to be heating the air more than pressurizing it, and IIRC any pulley setup that'll get you 15-18psi on a SHO motor is going to spin that blower 50% past its redline at 7200 engine RPM. The T-Bird SC's 3.8 was an wheezy, bad-breathing, low-revving piece of garbage.

Intake tract length alone - remember, that big intercooler adds considerably to the volume/length - doesn't have a lot to do with pressure drop in the intake passages. Turns and restrictions in the passages do, and to the extent that any of that plumbing is hotter than the air passing through it, as the air heats it will lose density. You also need to make sure whatever plumbing it's connectd to is big enough to handle the pressure spikes the internal-compression blower creates at its discharge.

I would have to disagree with you my 94 sc which is the 2nd gen eaton got me 13-15psi stock. It had a stock pulley and stock intake. The early ones still get around 12psi. It displaces 90 cubic inches (1.5 liters)
and is rated to spin at a maximum rpm of 14,500.

 

[JEM]

That page I linked to had two links within it. Two pages of updated progess.

Cute, looks good. I suppose if you're prepared to ditch your air conditioning...damn, those GM Eatons are bulky with that huge manifold-attachment ****** on it. The T-Bird SC and aftermarket M90/MP90s are much more compact. 9psi sounds like a reasonable target.

I've got an ex-TBird SC M90 in a storage tub in the garage, I once had it mocked up on top/slightly forward of the front cam cover on my car. Looked like it'd be workable once you moved a few other things around in that corner of the engine compartment, notably a shorter/thicker radiator.

One of the several reasons I never went further with it is that I figured that if ever got it working right it'd make more torque than the MTX-IV transaxle could handle.

 

[x182dan]

my friend told me his 2005 ss monte carlo only gets 6psi which is extremly low compared to sc's

 

[JEM]

I would have to disagree with you my 94 sc which is the 2nd gen eaton got me 13-15psi stock. It had a stock pulley and stock intake. The early ones still get around 12psi. It displaces 90 cubic inches (1.5 liters)
and is rated to spin at a maximum rpm of 14,500.

I'd like to see relative VE of the SHO and T-Bird engines, I'd bet that 13psi on a SHO motor is going to take a whole lot more airflow (and make considerably more more power) than 13psi on that 3.8.

A blower redline of 14500RPM is going to mean that even if you're willing to shade the redline a hair you're not going to be able to run it more than 2.2x crank speed on a SHO motor, the 3.8 had a very low engine redline (4800RPM?)