See sig for the car and mods....

I was contemplating using two turbos from a DSM. For manifolds 87-91 Corvette Center outlet manifolds, custom flanges and manifold to turbo piping,to dual DSM intercoolers behind the foglight openings.

The problem I have is how to run the MAF sensor. I know it has to go in front of the turbos, but I will be having 2 turbos...

I planned on using the stock ECU and electronics for budget purposes, along with a boost controlled FPR.

Any ideas ???

------------------
Mike L.


1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, Relocated MAT sensor, Gutted MAF, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, airfoil, Random Tech Hi-Flow Converter (soon to go byebye!). ALL STOCK otherwise.
http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

 

i'm blowing through the maf on my 5.0 using two stock g.n. turbos. i've read the maf needs to be calibrated for blow through. not sure why or how true this is, but mine seems to function fine as is.

 

Wow...my MAF is ABS plastic. I would think it would melt. Hmmmmm

Not to mention the electronics inside would get too hot. Thats why theres a heat sink in the air path. Hot air wouldn't help it any.

Hmmmmm....


------------------
Mike L.


1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, Relocated MAT sensor, Gutted MAF, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, airfoil, Random Tech Hi-Flow Converter (soon to go byebye!). ALL STOCK otherwise.
http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

 

Mike, your URL listed in your sig doesn't seem to work for me.

E-mail me off-list about Lapeer at afgun@mediaone.net

--andrew

 

twins hey mike............I plan on doing the same thing once this wonderful summer of ours is over. although then i would have to loose the nos; o'well........we'll see i guess.

hey are you going to superfest?

jeff

[This message has been edited by Kandied91z (edited May 29, 2001).]

 

I might go to watch. Once I get some paint on my car I will start the show circuit.

Right now its all about the quest for MORE POWER

The only problem I have with TT is the MAF sensor. I want to retain it for adaptive learning, but can't devise a way to get the MAF in front of both turbos.

Back to the drawing board....


------------------
Mike L.

"If it feels good - stay in it "

1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, Relocated MAT sensor, Gutted MAF, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, airfoil, Random Tech Hi-Flow Converter (soon to go byebye!). ALL STOCK otherwise.
http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

 

FYI - The MAF sensor works by measuring how much current it takes to keep the hot wire, well, hot. The air rushing through the MAF cools down the wire, and the MAF circuitry pumps in current to keep it at a hot temperature. I don't know what temperature the wire is supposed to be heated to, but if the air going through the MAF is hot, then the cooling effect will not happen as much, and the readings might be low.

Since you'll be intercooling it, you should be OK to stick the MAF after the intercooler Y's back together. It might be a little off due to the air being pressurized, but should be close enough to work. You can fine tune the rest of it through fuel and timing map tuning. HTH!



------------------
Andris Skulte
Skulte Performance Designs
Z28tt-89 IROC T56 DFI Twin Turbo
http://www.skulte.com

 

couldn't you just have a Y or T shaped intake running to the turbos?

 

If your referring to the inlets, i'd say no due to all of the plumbing already there from the IC and exhaust.

I just think it'd be a plumbing nightmare.

So Andris, you think it'd be OK to blow thru the MAF after the IC?
What kind of ECU have you used on your combo?
I seen your page a few times, but don't recall every reading about the programming.

Thanks for your input guys.



------------------
Mike L.

"If it feels good - stay in it "

1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, Relocated MAT sensor, Gutted MAF, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, airfoil, Random Tech Hi-Flow Converter (soon to go byebye!). ALL STOCK otherwise.
http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

 

Check out this site http://www.skulte.com/turbo.html . This guy has done it and he has links to other guys who done it also.

Jeff

 

Been there. Thanks. I got a lot of ideas looking at his design.

Now I want to put my low-budget senses to work on it and see what I can come up with.

A friend has 2 Mistu turbos from DSM cars. I may use them and weld the two intercoolers together with a custom outlet.

I have many ideas, now its just a matter of putting them to work.




------------------
Mike L.

"If it feels good - stay in it "

1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, Relocated MAT sensor, Gutted MAF, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, airfoil, Random Tech Hi-Flow Converter (soon to go byebye!). ALL STOCK otherwise.
http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

 

iroc5.7tpi,

One thing you may want to take into consideration, is those turbos off the DSM might not flow enough air, so your whole project will be a waste of time and money

just my .02

p.s. where in mich are ya from???

later
larry

------------------
MÅN¡ÅÇ ©
88 IROC 5.7L,edelbrock TES,random tech cat,borla exhaust,chip,sfc,accel wires,airfoil,k&n's,ETC..
and NOW supercharged!!!
http://maniac.megamania.com

 

I'm in Sterling Heights.

The reason I think the DSM turbos will work is because the stock TPI manifold only flows air to 5000 RPMs. This, and the fact that the cam/heads are staying stock for now should make an excellent combo.

The turbos should spool up real fast due to their small size and hold 8psi boost just fine. I figure with 1.6 roller rockers, a 4" exhaust from the Y-pipe, and a bigger throttle body and ported plenum should get me going low 12's if I can get it to hook up. Traction will be my next issue.

I'm still in the planning process. I can get my hands on a few Ford 2.3 turbos. Those would work just as well, if not better.

I will start looking at swap meets for Vette manifolds.
I have to replace the valve seals on my car before I attempt a TT install.

See ya guys



------------------
Mike L.

"If it feels good - stay in it "

1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, Relocated MAT sensor, Gutted MAF, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, airfoil, Random Tech Hi-Flow Converter (soon to go byebye!). ALL STOCK otherwise.
http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

 

what kind of DSM turbos are they? 13b, 14b or t-25? there is a guy with twin T-25s on his 5.0. i think they might be too small but a 14b can hold 20psi to redline (7000) on a DSM, although it's mostly just producing heat at that boost.

 

I'm not sure what turbos they are. My friend builds 1st gen DSM's so they should be what ever came stock on them.

If they are deemed to small I will just go to a bigger turbo from something else.

I hear that the AirResearch from a Ford will work fine. I've seen them on 5.0 Mustangs around Detroit.

hmmmmm.


------------------
Mike L.

"If it feels good - stay in it "

1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, Relocated MAT sensor, Gutted MAF, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, airfoil, Random Tech Hi-Flow Converter (soon to go byebye!). ALL STOCK otherwise.
http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**