1995 T/A OBDI reprogramming

okay i have a stock 95 birdie and i was wondering about electronic programming

im also planning on making my own cold air intake, and other cheap mods (i am a student so i have low funds)

i was wondering how much more power i am expecting, even if there is a way that i can cut down the power to save gas (student)

and for the programmer, i am a genius in circutry, and i was wondering if there is a way that i can build my own programmer that i can hook upto my laptop and flash it

thanks alot for your time

Sacha De Sousa

Not real up on LT1 PCM's but I believe there is Edit software for OBDI. I know I've seen stock OBDII programs showing fairly significant gains by just tweaking the fuel maps/timing tables..... up to as much as 23 rwhp/20-30lbs.ft.rwtq., so yes, there are benifits to playing w/the stock program even if you have only minimal mods.

A "good" tuner should also be able to moderately improve fuel mileage.

Check out LS1tech.com and hit the Lt1-Lt4 subforums for some good reads on OBDI GM motors.

The 2 guys specializing in LT1 tuning are Ion from www.madz28.com (http://www.madz28.com/) and Bryan from www.pcmforless.com . You can program your eprom right from inside the car at the aldl under your steering column with a cable from http://www.akmcables.com/ic.htm ,that way you have no down time and for 75 dollars total you can buy a unlimited tuning package from pcmforless and so any time you mod that requires a pcm change they will send you the new tune via email and you can upload it that same day. Also check ebay for a obd cable as they are usually alot cheaper there. Good luck

John

You also mentioned about building your own cold air intake. I had a '95 T/A and made my own from parts found at any home depot. I used 4" ducting for the main section of it and this is what I attached my K&N air filter to. the area near the radiator I used a flexible ducting hose that I wrapped in insulation so it could clear the radiator. It worked great and didn't cost much to make.

Also- check out LS1.com for some other cool tips that can be applied to the LT1 cars. example- if you have a 6 speed you can buy a specific resistor and use this to disable the CAGS on your car. I did it and it worked great. It cost me a dollar at Radio Shack and about 5 minutes of time. Much better than those 30$ kits they sell...

There's also a sensor that hooks up to the "elbow" on the intake. This sensor helps advances/ retards the timing. they show to re-locate this further up front, which advances the timing as it reads colder air.... again a freebie mod. and then there's the coolant bypass on the throttle body.

all good stuff and affordable too.

good luck!

thanks for the imput, i was looking into cold air intakes for some time, i would have done it already, except for time issues

i read somewhere if you drive the engine cooler the fuel doesnt combust to its most efficient potential, and ultimately runs the engine harder... is this correct?

Key word is engine temps, and this is true. Combustion chamber temps need to be at design specs to efficiently burn the fuel.

AIR temps are different.... cooler/colder air is denser.
This is why you'll see any car trap better at low DA(density altitude)tracks. The lower to sea level the more oxygen.

This is a good thing. The cooler(denser)the charge, the more oxygen is available. More oxygen = more power.

See link for an interesting read on DA.

http://www.staginglight.com/guide/air.html