Getting More Power: Super/turbocharger?

[ItsVince725]

Nitrous is not something I'm into.

I want power all the time, not just a shot of power every once in a while. Plus the added torque one gets with a nice supercharger.

[TGP37]

you can open up the TGP manifolds to the 3x00 ports, but it leaves almost no sealing face area near the corners of the ports. it's not something I would recommend, what I would consider is blocking off the output of the rear facing manifold, and fabbing up a new Y pipe to the turbo.

You can weld the flange right to the cross over. Not ideal but it works pretty well for low boost. That was my first turbo crossover attempt. I eventually ditched it for a better crossover setup Tig welded.



The easiest turbo might be a remote mount set up. The ones that put the turbo near the tail pipe. Packing in the piping, turbo, wastegate, etc is tough in a tight engine bay. Especially a Fiero, ehh ericjon...lol

Have you considered NOS? That can certainly boost power.

[robertisaar]

the MP90 is normally mounted on top of the engine as well. they will work in any position though(as long as you can support them), just like the M90.

[caffeine]

I doubt a supercharger would fit over the 3x00 without needing a large hood scoop. They fit better on 3800s because of the 90* V I think. The MP90 is mounted to the side of the engine, and appears to use a stock intake.

[ItsVince725]

the large port 3100(00+), 3400 and the non-VVT 3500 UIM are all interchangeable.

Of course, it would have to fit a large port 3100.

I dunno what motor Alero is running.

[robertisaar]

the large port 3100(00+), 3400 and the non-VVT 3500 UIM are all interchangeable.

[ItsVince725]

SC3400 or 3500 would be my vote.

Well if a manifold that allows mounting a M90 to a 3400/3500 comes out, that can be an option.

But a 3100 manifold wouldn't fit a 3400.

[robertisaar]

SC3400 or 3500 would be my vote.

[ItsVince725]

you can pick remanufactured 3800 M90s for $300-500.... it cuts out over $1000.

if you want to hit a junkyard, you can usually get them for under $100.

Yeah, cutting out at least a grand of expense would make it a much more worthwhile idea.

Of course, then I wouldn't be able to decide between a SC 3100 and a NA 3400.

[robertisaar]

you can pick remanufactured 3800 M90s for $300-500.... it cuts out over $1000.

if you want to hit a junkyard, you can usually get them for under $100.

[ItsVince725]

This.

The majority of the expense is the custom made MP90, yeah?

So being able to use a L67 M90 would cut at least a few hundred dollars from the package.

[young gun]

Being able to use the L67 3800 supercharger would certainly bring the cost way down...

But the decent amount of boost for a low weight increase is quite nice.

This.

[ItsVince725]

Being able to use the L67 3800 supercharger would certainly bring the cost way down...

But the decent amount of boost for a low weight increase is quite nice.

[AleroB888]

Originally Posted by young gun

Probably better off to wait for AleroB888 to finish with his front mounted MP90 and hopefully he would let the castings out of the bag so that everyone else can do it aswell for cheaper. Cause I can see that becoming a very popular thing to do with 60*'s if it all works out with him.

considering he whipped 12PSI out of it, it is most definitely an interesting option to pursue.

hopefully, we can go a step further and just use the M90s from the L67s and make the process even cheaper to get into.

Eventually I'll update with all the pros and cons and pitfalls of the MP90, but I can give a rough idea of the minimum cost. The superchargers themselves are basically each a one-off custom spec unit you order from Magnuson Products. Turn around time can be a month or more. Rounded upward, the SC cost was $1900 to the door. My rough castings cost me $260.00 (per set) counting the flange surfacing. Aluminum and steel stock materials, cutting and having the t-stat outlet welded, new belts, 3.25 inch idler pulley, let's say $150.00.
68mm TB is $270.00
Now this is still a non-intercooled 12 psi, I would guess roughly equal to 8 psi intercooled turbo. And the weight I estimate 45 pounds with the crude mounts. Having somebody make nice billet mounts is possible, but no doubt would add a couple hundred to the cost.

Once the mount dimensions are finalized, I can post them up. But remember, these are sand castings, not investment types. If you run into a gap or make a mistake when tapping a hole, you have to be able to fill it in and retap.

[ericjon262]

Going GM to GM shouldn't be too hard...I'm sure there are OBD-1/1.5 to OBD-II conversion kits that allow you to take a OBD-II ECM and related harnesses and wire it up to an older car. I'd hope that a computer swap wouldn't require all new wiring harnesses.

kinda,

http://wot-tech.com/shop/gm-60v6/obd1-5-to-obd1-swap-harness-adapter/prod_255.html

I would just re-pin a harness and get a ECM/PCM from the J/y though...