Putting a turbo intake on a TBI car?

[DaytonaTurbo87]

My car's got the good old reliable 2.5 tbi in it. It's been a good motor, but today especially, it's been lacking in the performance department. No, not performance, but driveability. I just want it to be more peppy while driving around town. I've got a couple of extra T1 log intakes laying around, and I'm wondering, would it be worth putting one of those on there and wiring it up for batch fire injection? I've heard of other people doing this, but would it be worth it for a T1 manifold?

[RPMurph]

ya mean converting a TBI to MPI? i think that would help out a lot

[jdawg]

ask una he did it

[Una]

Just add Megasquirt.

[DaytonaTurbo87]

lol, shouldda mentioned, I wanna use the stock electronics and batch fire it.

[Una]

Stock TBI electronics? That's a really bad idea.

[Hemi-K]

Quote:

Originally Posted by Una Stock TBI electronics? That's a really bad idea.

Why do you say that? Its been done before with reasonable success.

[19omni87]

i was wondering about this myself for a na tuned omni and wtf is batch fired. i was thinking of running glh electronics but the relized it might be a prob do to the lm making injectors push out tons of fuel and without turbo not enough air

[Hemi-K]

Quote:

Originally Posted by 19omni87 i was wondering about this myself for a na tuned omni and wtf is batch fired. i was thinking of running glh electronics but the relized it might be a prob do to the lm making injectors push out tons of fuel and without turbo not enough air

Batchfire is when you fire all the injectors at the same time rather than sequentially. It would work something like the Bosch CIS system used on a lot of older German and Swedish cars......only done electronically rather than mechanically like CIS does it.

[RPMurph]

i was reading thru that megasquirt and it sounds kinda difficult......couldnt ya just grab the setup out of a FFV?

[19omni87]

o so in other words i would just take a turbo fuel injector harness and splice it into stock 2 injector wires for a tbi system

[Una]

Quote:

Originally Posted by RPMurph i was reading thru that megasquirt and it sounds kinda difficult......couldnt ya just grab the setup out of a FFV?

No, they have several extra sensors to determine which fuel your running. If you think Megasquirt (like 12-14 wires to hookup) is too complicated, you'd NEVER get a FFV install to work in a non FFV car.

[Una]

Quote:

Originally Posted by 19omni87 o so in other words i would just take a turbo fuel injector harness and splice it into stock 2 injector wires for a tbi system

You will NOT like the result from that. The TBI computer will have a sh!t fit trying to figure out what the heck is going on. It's a hack job at best. Very bad idea.

[DaytonaTurbo87]

Well I've read up on some people who have done this before, and they have run different injectors and wired them up to have the same resistance in the end as the stock single tbi injector does. Then the signal that normally goes to fire the large single injector goes and fires off four smaller injectors. I would assume that all 4 of the injectors would have to be sized pretty small though? Why would the tbi computer have a problem with this?

[turbovanman]

You would have to get the smallest flowest injectors you could find, the log injectors should be ok when used with an AFPR. You have to make sure that whatever injectors you use, add up to the same as the TBI injector or you will fry the computer.
Theres nothing wrong with batch fire, OEM's used it for years, cheap way of firing fuel injectors. They went to sequential for better fuel economy and emission controls.

www.thedodgegarage.com has Gary rigging one up. Personally though, if your going to go to all that hassle, use the new 1 piece intake.