supercharger for 3.4 DOHC

[napatiger]

Would it be possible to put a supercharger in the location of the AC compressor? I'm sure this has been thought of before but I just want to get some boost for my Monte!!!

I have not heard of any supercharged 3.4's

Anyways, if not, i guess I will have to settle for a little Nitrous.

[SappySE107]

I think kickingz was going to do that with his, but he disappeared. I don't see why you couldn't put a supercharger there. I don't know what one you would want to get though.

[Lyle's GTP]

Just drop an Eaton SC right on top of the lower intake. Less pipe. I'm sure all that extra pipe will cause some lag while the airspace inside the tubing compresses.

However such an indevor would require fabrication of a manifold.

Lyle

[SappySE107]

And a hole in the hood, or a large cowl. I would rather have the other one as well, especially if you can fit some headers in there. You have to design them different obviously but it could work. Now, why not run a turbo and that SC. Turbo in the back, SC in the front. I wonder if that can even work with that SC setup.

[Anonymous]

Just drop an Eaton SC right on top of the lower intake. Less pipe. I'm sure all that extra pipe will cause some lag while the airspace inside the tubing compresses.

However such an indevor would require fabrication of a manifold.

Lyle

I wouldn't suggest dropping an Eaton supercharger onto anything. My choice would have to be Whipple, but for our motors, I'd use a centrifugal type. Liek a Vortech. They are pricey, but then you get a more high end oriented supercharger, it can be easily intercooled, and it can be made not visible without really looking.

There would be more pipe, and that would delay pressurizing, but after it "spools up," the power gain would be more.

[Lyle's GTP]

I've researched all styles and they are all great. But you are right, the centrifugal is expensive and so is the whipple. But the eaton gives you full boost very quickly, and is tried and true. Plus, very affordable.

Lyle

[Gemmer]

but eatons are so hot! ...and im not refering to their coolness! ...and in that last sentence Im not referring to their lack of heat!

[dykz34]

I don't see why a roots style blower can't be intercooled.... Basically there are two mounting options here: 1) on top of the lower intake = too tall for the hood to close = need a solution for that so why not put an intercooler inbetween the S/C and the lower intake? 2) mount it elsewhere with a long nose drive and some gear reduction in place of the A/C (this way you can still intercool it because of the S/C being mounted in the stock airbox location (for example).

[Z2_4cams]

funny I was just measuring this the other night, and with the upper intake off you have about 10 inches wide 3 inches below the tops of the heads. assuming the m90 is 6 inches tall, the max height cowl I'd have to make in my J body would be about 2 inches. the thing is their would be virtually no volume between the supercharger and the combustion chamber. this would mean more psi but less effectiveness in the upper rpm.

[RacerX11]

Below 6-7psi of boost, the Eaton Roots is more efficient than the Whipple, so there will be less heating of the intake charge. It is only at the higher boost levels where the Whipple has an advantage. Both can be intercooled, it is just a matter of packaging. You will get better gas mileage with the Eaton, since it has a bypass valve and does no internal compression like the Whipple. The Eatons are so cheap used, it is easy to do an M90 setup with an intercooler for cheaper than a Whipple setup.

I wouldn't touch a centrifugal setup for anything other than an all-out drag car. The positive displacement blowers rule for street useage.

Marty

[Anonymous]

I don't see why a roots style blower can't be intercooled.... Basically there are two mounting options here: 1) on top of the lower intake = too tall for the hood to close = need a solution for that so why not put an intercooler inbetween the S/C and the lower intake? 2) mount it elsewhere with a long nose drive and some gear reduction in place of the A/C (this way you can still intercool it because of the S/C being mounted in the stock airbox location (for example).

I never said it couldn't, it is just more expensive, more dificult, and adds about 2" of height.

If I was to use a roots, it would sit on a custom built intake manifold, and would fit below the hood. It actually wouldn't be very dificult.

We don't really have room to mount it near the airbox, unlike the other 60*s. Our cam towers get really close the radiator, and our dogbone pretty much cuts the path. You'd also need to relocated the radiator cap.

[mcgavinz26]

An M90 right on top of the intake works just fine. Having it stick out of the hood works good because the air blowing over it keeps it nice and cool. Mine never got anywhere nearly as hot my GTP buddy's blowers.

Cost was my issue too. $265 for an M90, it was an awesome deal.

[Anonymous]

An M90 right on top of the intake works just fine. Having it stick out of the hood works good because the air blowing over it keeps it nice and cool. Mine never got anywhere nearly as hot my GTP buddy's blowers.

Cost was my issue too. $265 for an M90, it was an awesome deal.

We're talking about a 3.4L DOHC, but should be the same principles. Also I forgot to mention above, you'd need to move the power steering pump in order to get the shaft through there.

[napatiger]

Tuning would be an issue, do you guys think it is better/easier to go to OBD I or II, not the 1.5 that I have.

[pepsi_coke]

BUMP

Basically there are two mounting options here: 1) on top of the lower intake = too tall for the hood to close

So for example .. an M90 .. you'd bolt it to the lower intake manifold?