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xgtracex
11-21-2009, 11:03 AM
I am thinking of boosting my 1989 LX. I will probably buy a On3Performance kit.
My question is this, I will probably only run 12 psi so what size injectors and MAF would you suggest? Also can I tune using stock stuff or do I have to go with a stand alone? I really don't have the money for those things so I hope I can just stay with the EFI.

Engine already has ARP head studs
F Cam
gt40P heads
GT40 upper and lower
Blackout
11-21-2009, 03:28 PM
Stay with your normal stock setup.

Things needed:

1. 255 lph Fuel Pump
2. 60lb Injectors
3. 60lb calibrated Mass Air or have car tuned to accept the one you have.
4. Good Plugs
5. Have the car tuned after installing! You want it right with this setup or it will blow.

This will start you off in what you are wanting to support your system
xgtracex
11-21-2009, 06:03 PM
Cool Thanx.
facemelter71
11-23-2009, 10:24 AM
I run a 255 pump,
Siemens Deka 60# injectors.
SCT BA2600 Meter.
3924 Autolite's.
And had the mastermind at Cincy Speed tune it for me.Right now im only running spray,but next year (really soon) will have a turbo setup.
Get the good stuff now,dont waste your money on junk.
black90lx
11-23-2009, 12:43 PM
I run a 255 pump,
Siemens Deka 60# injectors.
SCT BA2600 Meter.
3924 Autolite's.
And had the mastermind at Cincy Speed tune it for me.Right now im only running spray,but next year (really soon) will have a turbo setup.
Get the good stuff now,dont waste your money on junk.

Adam at cincy speed is the best tunner around, hands down.
Adam@S&MMotorsports
11-23-2009, 02:50 PM
Thanks guys! :)
stocknotch
11-23-2009, 03:45 PM
Adam at cincy speed is the best tunner around, hands down.

Forsure! He is kind of a prick though, lol. J/K The crew down there at Cincy Speed are some real stand up guys and will go way out of their way to help people out. Thanks guys!
one90gt
11-23-2009, 06:33 PM
Im running about 10psi on my turbo car. Ive got 42lb injectors and a 255 in tank pump as well as an inline booster pump.
you will definately want to have it tuned after you put on the turbo. MD and cincy speed have both treated me very well, and can put a programable chip in your stock computer.
justins98cobra
12-13-2009, 11:41 PM
Adam is the bomb! i have his cell number and he helps all hours of the night.
black90lx
12-14-2009, 04:33 AM
Adam is the bomb! i have his cell number and he helps all hours of the night.

same thing here. he will go out of his way for you. i really respect this guy and i don't too many.............