Turbo 3100

[el_roy1985]

Well, I'm new here but kinda know what I am getting into for a turbo project from being on bstuff for a long while. I did a search here but really didn't have any luck finding much info.

So far I have been told the t3 Super 60 turbo is a good turbo to use. I am just lookin for as much info as possible to get this done. I know I need more fuel and such. One thing I am wondering about is how do I tell if I am getting detonation. Oh well, any info will be greatly appreciated.

Thanks,
Jason

[bszopi]

Moved to the BOOST section for better coverage...

[el_roy1985]

Hmm, no one has anything that could help me out? I have one link that I'll probably end up goin by, but the more info the better.

[xxrollin]

Go hybred. T3/T04B turbo. Watch the A/R's on the exhaust side. .63 is a good starting point. Any pinging will probably be detected by the factory ECU and will adjust the ingition a few degrees. If it is extreme, you'll need a MSD DIS-4 or a full programable engine management system.

[el_roy1985]

Is the T3/T04B shown to work better? I have thought about getting a stand alone engine management system but I don't have any clue who I would have tune it for me. I think the closest place is around 6 hours away. i'm guessing I will have to get the MSD DIS-4 no matter what, although I'm not completely sure on what it does I will go research that in a little bit. What exactly does a jet performance chip do? Someone has told me I can do a ECU swap to a 3.4 SFI 5 speed ECU out of a camaro to help with my 5 speed i swapped in to my Beretta. They also told me I could get the jet chip to accompany it.

[Mechanic]

If you are really serious about turbo charging a 3100 with a manual trans, then you should not even consider using a PCM out of a non-boosted application like the camaro.
There is a very simple solution, and it will not even cost as much as a DIS-4 to implement.
Without knowing the exact year of your intended application, I can only give advise for a general approach.

First you obtain a 1227727 PCM and harness out of a 89-93 3.1 V6 W-body. Available at your local u-pull it yard for around $50.
The chip used by these PCM's is contained on a removable module called a memcal. The system is quite programmable with the proper equipment (eprom burner) which can be obtained for around $40. Basically, you would just replace the code in the existing memcal with that of the Turbo Grand Prix ($8F), along with a few chages for the manual trans and your specific boost requirements.

Replace your existing PCM with the 1227727, by splicing in the harness shortly after the PCM plugs. Splice the injector leads (which are separate on the SFI harness) together, as you will be running batch fire rather than sequential.
Replace your existing 1-bar MAP sensor with a 2-bar MAP sensor (part# 16254539), and slot the connector so that it will plug into the new MAP sensor, or just replace the connector with a pigtail that uses the 2-bar MAP connector (part# 15305891).

You now have one of the best DIS forced induction engine management systems available, and it cost you less than $200.
If you want real time programmability, just pick up a Transtronics eprom emulator. You can always sell it after you are satisfied with your code changes.

The proper way to monitor knock and knock retard is with a handheld ALDL scanner or a laptop equiped with scanning software and interface cable.
A PCM's capability of compensating for knock by retarding timing is fairly limiited, and if you exceed this range, you will likely be picking pieces of what was once a piston from your cylinder walls.

The stock 3100 GEN III will not require a large turbocharger. Even a T-25/28 would be sufficient for the boost levels you will be limited to with the 3100's stock compression ratio. On the other hand, if you change the pistons to provide for a lower compression ratio, a decent flowing turbo charger with significantly high boost levels is quite reasonable.

[xxrollin]

Na, I wouldnt say the best system, maybe the best you can do for $200.........

[dbtk2]

Definately not the best system. However, it is probably the route I would go for that price range.

Shawn

[Mechanic]

I believe I stated that it was "one of the best systems". Please do not quote me out of context. Aftermarket fuel management systems typically do not even have decent diagnostics, and are quite limited in comparison when you consider that you have complete control over nearly 1000 areas of the code using the 1227727 with the $8F binary.

Electronic boost control, altitude compensated boost, a multitude of safety factors built in, and since its a factory production PCM, it is also a 49 state emissions legal system. Cant quite ask for much more.

Given the fact that this is the exact system I am using on my turbocharged 3100 Fiero project, which currently produces over 300 hp at 14 psi, I would say one might want consider it.

[RidgeRunner]

it is also a 51 state emissions legal system.

What? Who'd we annex?

[xxrollin]

puerto rico I guess. I'd like to know also....... I wasnt doggin ya on your set-up, but you'd be better off if you can get a diagram of all this cause it went over my head by a few miles. And shiznit, I thought aftermarket ECU's give you more control, my labtop says so.....

[Maetrix66]

There isn't anything that you can modify with a aftermarket ECM that you can't change with the factory one that Mechanic described. I am currently building a turbo 3100 fiero as well, and there are products out there that let you make changes to your code while you are going down the road, to see real time results. There is nothing that a aftermarket ecm can do for this application that the factory cannot do.

[el_roy1985]

That's awesome, no one told me about that before. Glad I came over to this forum. I am VERY serious about turboing my 3100, it will probably happen over next winter. It's a 96 by the way. Also, isn't there a MAF sensor instead of a MAP sensor on my car, or do I have both?

Thanks,
Jason

[Maetrix66]

When you change the wiring harness over to the TGP setup, then you change over to the TGP Map sensor setup as well. You can safely eliminate the EGR (safely in regards to setting the check engine light) because the egr on the TGP is not controlled by the PCM. The wires for the EGR are used for the Boost control solenoid, which allows the computer to control the turbocharger, and the parameters are also customizable. It is true, there is probably an extra little bit to be gained by the extended fuel and spark tables of the aftermarket ECM, but the setup is an immense hassle, diagnostics are next to nil, and unless you intend on spending 10 grand on your engine, you are never going to see the benefits past the TGP PCM code.

[el_roy1985]

well, one problem I will probably run into is where in the heck will I find a TGP to pull all the parts I need? I've never really looked too closely in any junkyard around here but I doubt I will find what I need. I suppose I could go on ebay or order a new PCM, but then I still need the harness and whatever else.