[illumina]

Originally Posted by 91TexasSeville

GM-3 IHI 6.5 liter diesel turbocharger. It is used and will probably need a rebuild in the bearing area You can almost count on that!

Yes, the turbocharger cost me $76.00 and will likely need a rebuild, but I couldn't pass it up. The seller claims a little bit of side play with no end play whatsoever, which is good. His rating is 99.9% positive out of 850 or so in feedback, so I'm likely to get a good deal...That's the trick with Ebay though...

The turbocharger will also include the stock heat shield, the oil return line, oil feed line, intake adapter, and down pipe among other things.

This will be for the 4.9 liter '91 Seville. She has run low 15's in the 1/4 mile, so I know she has what it takes. Not bad for a stock luxury car! Especailly when all the torque is at the low end of the RPM range!

This will be the Warner-Ishi GM3 turbocharger. I would have preffered the GM5 or newer, but the price was right and the similarities are pretty close.

I've been eyeballing these Warner-Ishi turbochargers ever since I seen the Fiero folks use the GM4 Warner-Ishi. From what I can tell, they are basically the same except for the waste gate design. There is no need for water cooling with these turbochargers either: they don't have any water passages in them.

With the smallish amout of boost I'll be attempting, I can be rest assured that the higher RPM band will benifit in the form of madness.

As it stands right now, I may be looking at a nice 75 hp increase from the turbo on 4-6 psi of boost That is a very reasonable estimate provided you can manage the fuel.

This is the main factor on my mind. I can get the turbocharger rigged easily, but fuel management will be plum HARD. I am going to use the Megasquirt system for now, unless someone can lead me to a hacked version of the Cadillac ECM. If I could get inside the Caddy ECM, I could just go for fuel enrichment or whatever you call it. As it stands right now, the Megasquirt system uses a 2-bar MAP, which will make things a bit easier.

I am also going to use the MSD boost timing controll system in conjunction with my MSD digital-6 ignition. I believe that detonation will be easily taken care of through that...I hope.

I am also going to buy a knock sensor from Jegs. It should be able to plug into one of the water drain holes in the block...

That's what Hot Rodding is all about! No denying that!

Damn skippy!

So far this is the cost of the project in the infant stages (purchased items):

GM3 Warner-Ishi turbocgarger: $76.00.
MSD boost timing controll system: $180.00.
Deville exhaust manifolds, both sides: $20.00.
Deville cross-over tube: $10.00.
Extra exhaust hardware: TBA.
MSD auxiliary fuel pump: $75.00.
Auxiliary fuel injectors (Bosch style): Free (I've had them for a while from another car I was working on at the time).
Alternate auxiliary fuel injectors (TBI system from an '88 Deville): Free (see comment above).

Additional items not yet purchased:

Megasquirt: $140.00 (I have to build it myself).
Knock sensor: $140.00.
Stand-alone adjustable wastegate: TBA (I'm scanning Ebay for this one too).
By-pass valve: TBA (see above comment).

If I'm forgetting something, feel free to add into the list.

I was considering an intercooler, but from what a few turbo people (one is here too), I may not need one for the low amounts of boost I'll be running.

Please keep in mind too that this setup will be going ON AN EXISTING ENGINE/TRANSAXLE COMBO! I am well aware of the dangers here. I am using the existing setup for tuning of the second stage of this turbocharger project. From all indications though, my engine will not be the limiting factor, but the transmission will. We'll see in a few months when stage 1 is complete...

Also, pictures will not be ready until I either become a paying member or I open up a new web site that will be dedicated to me