Turbo 3100

[Maetrix66]

Don't look for a TGP PCM, look for a 90-92 w-body ECM. There are others that will work as well, but I the only ones to think of are the 3.1 equipped z24 cavaliers, the Olds Cutlass, the Lumina, and similar cars. Tak the harness as well. The only difference between these harnesses andthe TGP (well, that you need to worry about) is that the EGR wires need to be used for the Boost Control Solenoid, so you will need to modify that.

[brian89gp]

1227727 will be the number on the ECM (1227730 is the same thing except in an interior, non-weatherproof box)

[Canada]

A T3 60 (or Super 60) isn't anywhere near right.......this one is plotted for 5 psi, 7.5 psi, and 10 psi at 6k and 3k using 75% VE on a 3100 (191.3 cu in).............

[cypher_2001]

Turbo?

You all have me lost. I have installed a cool air intake, new mass flow air sensor, JET chip, high flow cat, new exhaust from cat back, and a re-ground cam, and ported/polished upper and lower intake manifolds....

How the heck can you fit a Turbo on a 2000 chevy Malibu 3100? Would you actually have enough room in the engine compartment?

[dbtk2]

There would be plenty of room in the engine compartment. You could actually put it in the same spot as they are on the TGP's and there should be ample room. You would just have get a rear manifold and crossover made to make it work, that and a downpipe.

Shawn

[Canada]

Once you move the battery to the trunk you get a lot of free space.

[z24turbo93]

use a to4e 46 trim...........that should work good for you. If you have to you will be able to run the 57 trim with not much of a difference between the two

[tbm22]

Mechanic with the "88 Fiero Formula 5-spd Turbocharged / Intercooled 99' 3100 VIN M"
I was wondering where u got ur turbo from

[Mechanic]

http://www.turbochargers.com/Turbos/TurboUpgrades/16GBig.htm

Also note that the mitsu turbo is designed to mount directly
on the exhaust manifold outlet, which is where it resides now on my 3100.
Clearance for the turbocharger is available when the 3100 GEN III is installed in the Fiero engine bay, but theres not likely to be enough room with the motors original platforms.
I use a turbo flange that bolts through the ears of a stock 95' 3100 exhaust manifolds exit flange, so there is no welding required to actually mount the turbo:


Mounting the turbo as close to the exhaust valves as physically possible is the same concept that all newer OEM turbocharged designs employ in order to increase the power potential from the system.

The mounting position also helps to keep engine bay temperatures close to the same levels induced by its original 2.8 V6 engine. This is likely also due at least in part to the exhaust shielding that the GEN III's employ (the stock Fiero 2.8 has no exhaust shielding). This is an important consideration when Fiero's are concerned, as there is much less air flow provided for engine bay cooling compared to front mounted engine designs.

The motor I used was a brand new 99' crate 3100 that we rebuilt with custom ross low compression forged pistons, total seal extreme steel top rings, etc. A stock 3100 would probably not be able to obtain anything close to 14 psig boost levels, as detonation would likely prevent that from happening due to the engines relatively high static compression ratio when using common pump octane fuel grades.

When one throughly understands the complexity required to control a distributorless electronic fuel injected motor optimally under the normal operating conditions encountered with a street driven vehicle, the logic behind employing an OEM forced induction system becomes quite obvious. My results were a highly modified boosted motor that starts, idles, and runs like McLaren had designed it that way from the factory.

[el_roy1985]

wow, it's been a while since I've visited here. Would it make sense to have headers made for my engine if I'm doing a turbo? (I've decided to swap in a 3400 this winter by the way) I've heard manifold are usualy best but the stock manifolds on a 3x00 flow so horribly. Also would the turbo you used (mechanic) still work well with the 3400?

As far as the ECM and harness goes, do I need the whole harness for it or do I just need to get the connector part?

thanks,
Jason

[el_roy1985]

oh boy, not too popular of a subject...

[Froggx]

wow, it's been a while since I've visited here. Would it make sense to have headers made for my engine if I'm doing a turbo? (I've decided to swap in a 3400 this winter by the way) I've heard manifold are usualy best but the stock manifolds on a 3x00 flow so horribly. Also would the turbo you used (mechanic) still work well with the 3400?

As far as the ECM and harness goes, do I need the whole harness for it or do I just need to get the connector part?

thanks,
Jason

I think going up a size on the compressor wheel would be optimal for a 3400, i.e. a TD05H-18G sized turbo. However, this increases cost a lot since 16G's are so common for dsm's there are tons of them. I'm currently debating between one of the 18g's, a t3/t4 hybrid, and going to a TD06, will probably use the hybrid.

As for the ECM and harness, get as much of the stuff as you can, the more you get the easier it is, and the price difference shouldn't be too great.

[x-thumpr-x]

anyone start a turbo 3400 yet? like to do this to my fiero also.

[Froggx]

I've started my project, although the projected finishing date is around June, so it might take a while still.

[el_roy1985]

Ok, do I have to swap out the harness in order to get the ECM I want to use to work? Cause I really don't want to have to rip out all the wiring and mess with getting stuff connected right. If need be I may give it a shot, but I want to do whatever I can to avoid that. I'm still looking for suggestions as far as what type of turbo to use. Also I am currently swapping in my 3400, if I go turbo it will probably be next winter so I still have time to figure all of this out. Also, thanks a lot to everyone who is helping me.