I have an 88 IRoc w/ a 383 TPI and I'd like to supercharge it but I don't really want one that's mounted where say the AC compressor is. What i'm looking for is similar to what the Ford Lightning had. Does anyone know if it's been done or if there's even a company that makes a manifold/kit for it? I'm thinking like an Eaton M112 or preferably one of their new TVS Superchargers. Any thoughts on what else it might take to make something like this work? I know Paxton, Vortech, and Procharger make remote mount superchargers but they have lag and I was looking for something unique...


M112


TVS

 

You could do an MPFI setup with a roots blower.

 

I have the MPFI computer because I have TPI. The issue would be getting the proper sensors and such to read correctly and finding an intake manifold that would bolt up and cool correctly. I mean an without any kind of cooling would yield IAT's of over 200* which we all know is terrible. I would need an intake that has at least a dual pass laminova core setup with a heat exchanger.

 

Something like this is what I'm looking to do...

 

That's just the nature of the beast. Your IAT isn't going to be any worse than a carbed roots setup.

 

http://www.magnacharger.com/sc-gen1.htm

 

Taken from Magnuson's PDF online catalog:



It's designed to work with an LS1 type throttle body. I think they also make an elbow for the 4 bolt LS2/LS3/LS7 type throttle body.

I've had my eyes on this supercharger for more than a year now. When I called months ago about it, I think I was quoted around $8,000 for the "kit".

If it were affordable, it would have gone on my S-10 for the coil per cylinder, LS1 PCM, electronic throttle prototype engine. If you do decide to purchase that supercharger, please let me know. I would like to help you with the PCM (LS1) and electronics. I really think you should consider coil per cylinder for that application. I would probably twist your arm to think about electronic throttle control as well.

 

Ive been wanting to do this too. But its at the very lowest priority on my list.


The ford SVT has an intercooler below the s/c. Then it goes into the plenium, then back up and curves into the heads. Not sure the gen1 sbc has enough space for all that as the ford motor sure looks like its a wider v or heads designed for more space.....something, I dunno.

 

I just worry about high IAT's. My supercharged Cobalt has IAT2 temps only about 20* higher than the ambient air temp. For example if the IAT1 (measured at the MAF sensor just above the air filter) is showing 70* my IAT2 (measured just past the laminova cores in the intake manifold) read generally in the 90*-95* range. The lower IAT's would naturally yeald more HP...

 

If you're worried about IAT, then a roots blower might not be what you want.

 

It's definitely what I want. There is a way to cool it effectively and bring the IAT's down to a reasonable level as well. the SVT Fords and my Supercharged Cobalt are proof that it can be done (like I said my IAT2's are generally only 20* abouve what the outside air temp is). It just a matter of finding someone that produces a manifold for it...

 

Those are axial compressors not roots, no?

 

My cobalt is an M62. same as the M112 that's in the package from Magnuson. The M62 is just for smaller displacement engines. I'm not sure what's on the SVT's but I believe they are similar...

Here's the M62...


If i'm not mistaken Eaton classifies these as roots-type blowers...

 

Ah, I see. The usual way to intercool a roots setup is with the intercooler sandwiched between the blower and the regular blower manifold.

 

Yea i can't seem to find anyone who makes one for the L98. I know there'd be cooling issues if I went with a setup like this because as we all know the 3rd gens have cooling issues to begin with...

 

There are lots of setups for the SBC.

 

with an intercooler or something similar sandwiched in between a roots style blower on top of the motor and the intake manifold? I also want to stay fuel injected...

 

Yes, you can get a blower manifold with injector ports, and bolt an intercooler on top of it. Try BDS.

 

Did you ever get this done?

I am looking to do a setup like this- remote eaton supercharger, and a water to air after the s/c.


Thanks,
Dave

 

It sounds like you have a list of wants that nobody makes parts for. Nobody makes a system to mount a rootes blower to a tpi. To get the lower iat that you want, you will need an intercooler. You can try to adapt a kit designed for an Ls motor, but it probably won't fit the L98 since nothing else seems to interchange between Lsx and L98. Your best bet is probably to go to BDS and get one of their fuel injection set ups. It won't be smog legal because he doesn't build or attempt to build anything for smog controlled cars. If you don't have to deal with any sort of visual inspection like we do in Cali, you can tune it to run as clean at the tail pipe as anything on the market. You won't be able to use your current air cleaner to intake without a lot of fabrication. The BDS system uses a throttle body like tbi or the Edelbrock or Holley systems with a 4 barrel carb type aircleaner.

 

You are correct, nobody makes anything for the Gen I engines, except may be for Magna Charger, but that is not smog legal.
I have to stay smog legal. I have a Super Ram Intake on it now which is smog legal.
I was thinking about mounting the blower on the side and having it blow through a water 2 air and then into the TB.
The problem comes down to real estate.

Thanks,
Dave