Twin TGP

Started by flybynite, January 18, 2009, 07:58:15 PM

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elyturbo

#30
   Hi guys. Any progress on the twin turbo set up? I will like to see that set up at work too. Now, about the 3 bar map swap, I have looked at it for a few days, checked few posts here and couple other sites and got lost. Doesn't remember were I have been anymore and end up reading the same posts over and over. It always looks like it's imposible, unless we run a stand alone or a heck of a program in the TGP. Not that it is a bad thing, but the options seems expensive for a 300hp project.
   So, if the 3 bar has the same power input (5 volts) as the 2 bar map and the voltage signal out of the 3 bar at the same boost level is lesser and by changing the 2 bar to a 3 bar we would basically decrease the voltage signal by 50%, why not increasing the injector size by 50% to compensate the difference in voltage? If we have #24 injectors, shouldn't a set of #36 work on a 3 bar with the stock fuel maps?
   It has work on Hondas for years now, people change the stock map to a 2 bar, double the injector size and run boost on the stock computer. I actually ordered a set of #36 EV1 injectors and a Delphi 3 bar map last night to try on my TGP, but if someone had tried this before and didn't work, please let me know so I can ebay this part before opening the pacakages.

kuntzie

lets see if you can keep up to me
HIGHEST TRAP SPEED of Any TGP

current status: on stand -obd2swap harness, built vin V, built 4t65e-HD, weight reduction,

the plan- 2500lb, 500whp track whore


flybynite

Quote from: elyturbo on March 07, 2009, 07:53:47 AM
   Hi guys. Any progress on the twin turbo set up? I will like to see that set up at work too. Now, about the 3 bar map swap, I have looked at it for a few days, checked few posts here and couple other sites and got lost. Doesn't remember were I have been anymore and end up reading the same posts over and over. It always looks like it's imposible, unless we run a stand alone or a heck of a program in the TGP. Not that it is a bad thing, but the options seems expensive for a 300hp project.
   So, if the 3 bar has the same power input (5 volts) as the 2 bar map and the voltage signal out of the 3 bar at the same boost level is lesser and by changing the 2 bar to a 3 bar we would basically decrease the voltage signal by 50%, why not increasing the injector size by 50% to compensate the difference in voltage? If we have #24 injectors, shouldn't a set of #36 work on a 3 bar with the stock fuel maps?
   It has work on Hondas for years now, people change the stock map to a 2 bar, double the injector size and run boost on the stock computer. I actually ordered a set of #36 EV1 injectors and a Delphi 3 bar map last night to try on my TGP, but if someone had tried this before and didn't work, please let me know so I can ebay this part before opening the pacakages.
It sounds possible but either way you will need lots of fine tuning.
1989 TGP Pace Car
1990 TGP Red/Tan Leather

mongoose

wow ok - well I guess I don't understand the existing computer setup as well as I should - so theoritically I could throw in a Garrett T-3 with no problem? That'd be ideal in my case anyway :)
Chuck G. "mongoose"

"Been borrowing Occam's Razor since 1992 - Haven't cut myself yet."
chuX0r.org - Arcade Games, Unix, Coding, & other geeky foo

killinprixs

i would like to ask Kuntzie how that is working out for him or how much tuning was necessary (cough cough spill the god dam beans)  but it really doesnt matter seeing how a 3 bar goes up to 28 PSI and the highest anyone would possibly run is 17-19 which can be manipulated in the code with a 2 bar. seems like a whole lotta injector for nothing.

NTRCOOL

It might be a good idea to relocate the battery to the trunk and mount one of the turbos you decide on in that area. just a thought...
NTRCOOL

1989 RED TGP interior gutted for racing, hard top, added a wing from GTP, MSD ignition, chip from flybynite, K&N air filter.
1990 RED TGP leather intr, moon roof, needs just bout everything
1990 BLACK TGP cloth intr, aftrmrkt moon roof
1977 Chevy Caprice areo back coupe soon to have Cadillac 500cuin.
1980 olds 98 coupe
1993 Ford Festiva GL
1998 Jeep Cherokee XJ, 3" Rough country lift
1987 Buick LeSabere T-Type
1990 Cadillac brougham

kuntzie

my car is currently in toronto ontario (actually north york) getting tuned,  the guy has over 10hrs of tuning on it (dyno tuning mainly) and its maxing out 50# injectors at 11psi, im going to be getting some 60s put in and hes going to havbe to do more tuning. as for numbers, i did break my 302whp at the early stages of tuning, but ill leave the official numbers for a few weeks till i get it back again and see the 18psi dyno run. i am definitly going to say that i have made numbers no one else has on a 3.1 GM engine, which really isnt a suprise with the work that has gone into this.
HIGHEST TRAP SPEED of Any TGP

current status: on stand -obd2swap harness, built vin V, built 4t65e-HD, weight reduction,

the plan- 2500lb, 500whp track whore