MP 90 FWD project, first mock-up

[AleroB888]

Sweet How is the tranny holding up ? Seems to hook up well !

I guess we'll see about that, hard to tell after only a week . I should be working on it, but now I want to drive it lol ...Need to put on my straight-through UIM next.

Info reposted from Aleromod:

I'm at square 1 with a new blower and trans rebuild, motor is on the way out, though Going to mod one step at a time to see the effect of each. Not as much power as the previous build yet, but it's getting to be fun to drive again.

Stock MAF, bored out TB ( to 65mm), stock UIM, (no EGR), stock FPR, 3 inch exhaust, supposed to be a built tranny, with MMGT1 (Paul's) tune. 2nd burnout in the vid, see slight shadow on the dash from tire cloud

Here's a look and listen, pay no attention to old guy driving, he's crazy.

http://www.youtube.com/watch?v=1PsQ0Gp9vQw

[unchained01]

Sweet How is the tranny holding up ? Seems to hook up well !

[3400-95-Modified]

He's only got 3... I have 4 beretta's... lol

[young gun]

You don't have enough alero's

Watched the video with sound: WWWWHHHHINNNNNNNEEEEEEEEEEE

[AleroB888]

First Steps

Nothing fell off yet, knock on wood. She's crying out for intercooling!

http://www.youtube.com/watch?v=1PsQ0Gp9vQw

[RedZMonte]

Like a Boss! looks nice! thanks for taking the time to post it!

S

[AleroB888]

Thanks, guys. I've been overwhelmed by the need to tend to the details in improving the mounting, positioning, belt sizing, and air tubing, while trying to keep the ultimate goal of adding back in the A2W intercooler. Change the mounting 1/4 inch on one side, and then you have to change almost everything else!

The benchmark for this build, and some water/alc injection is discussed at this link:

http://www.grandamgt.com/forum/showt...t=87638&page=2

It's not really a fair comparison, since the 2003 Alero/MP62 is essentially a new (stock exhaust) car, and the 1999 Alero/MP90 is a worn out car but rebuilt tranny, 3 inch exhaust and new blower. Without the A2W IC, both cars in this cool weather "feel" like they could run high 13s. The MP62 car has amazing throttle response, the MP90 is merely excellent, if that makes any sense. If you are going to run 10 to 12 pounds boost maximum, I'd choose the MP62 -- higher volumetric efficiency at car's redline rpm, comes into boost faster, lighter rotating mass. If you want more potential boost for the future, go with the MP90. But I may change my opinion a bit after more time working with the MP90 build. Assuming the car holds up lol

And I've used up every spare piece of CAI/filter piping I had for these builds, need to regroup a little before I get that A2W going.



Even cooler air, better intake tubing, etc. Just a tick over 10 psi, 10Khz, 31 MAF....

So now I'm going to watch a Preston Tucker Dvd, and then listen to Aerosmith. Must have inspiration!

[timg]

Looks amazing. Good luck!

Tim

[unchained01]

I meant both This car had an A2W intercooler on it before the tranny ordeal

[NateD4]

Interesting build. Be curious to see your results when all done.

not that anyone asked for it, but Methanol injection will help the detonation of this engine on both low and high octane fuel.

I presume we're talking water/methanol mixture not just straight methanol?


How does the seat of the pants feel with the boost?

[unchained01]

Do you think your meth injection will help the KR after you go to high test gas ? Meth injection ?

[AleroB888]

Update

Got in some test drives today, after much test fitting for the belt system.

Hit 8 psi with the stock TB and MAF, and the cheap CAI tubing. Leaving a lot on the table, there, lol
The exhaust is 3 inch, CAT+ Muffler.

No, I didn't notch out the hood brace like I said to, and yes it did knock a little paint off the blower case, But it worked!
As expected, the 90 degree silicone coupler collapses under vacuum, so it needs reinforcement. So now I can refine the prototype parts as I go along, upgrade the TB, etc., and we'll see how everything holds up with some abuse.

Went back and readjusted the pulley alignment, stepped up to a 65 mm TB, added support inside the coupler. Today was much cooler weather, good air. Let the car warm up, did about a 40 minute drive.

The tranny is a new rebuild, but quality still unknown. The engine has 96,000 miles, and I would say, more of that at WOT than 99.9 % of the other cars on the road.

Today boost peaked at 10 psi, but the MAF reading increased only slightly, 9800 hz, 29 lb/min, approx. There is a lot of KR in the scans, but I still have 87 octane in the tank, trying to use that up, and still need to redo the filter tubing. Might be able to mount the TB so the cable bracket is toward the engine, which may leave room for an intercooler in there.

[Fireball]

Hmm think I had the wrong one in my head then!

[1988GTU]

Came strapped on a lexus suv.

[3400-95-Modified]

I can guarantee you the 90 was not on a cobalt.... They advertise it as a 3.0 to 5.0L engine SC.