91formula74

For an '89 Formula 305 TBI, what is a very good chip to put in it ? For best power and performance, not racing the car....

LB9GTA

iTrader: (1)

Save your money and don't buy a performance chip.
Search the threads about them.

A long time ago I bought one, it slowed the car DOWN 2 tenths in the 1/4 mile!

Tibo

iTrader: (15)

Get a hold of Tuned Performance, he is highly recommended and will be worth far more than any old chip company. You can search his name for member feedback. There is an entire thread of praises for him.

25thannivZ28

Yah, don't waste your $$. Best to get it tuned first hand on a Dyno where they have a/f readings. Before my motor swap in my car I had the 350 w/Miniram, heads & cam. I only had 248 rwhp with the "Performance chip". I had a local dyno guy tune it from there and ended with 308rwhp.

I'm not taking away from Tuned Performance, I'm saying based on my chip that I got from this company that knew my set up first hand, it was a waste of $500. Its kinda hard to tune a chip for a car 500 miles away, my opinion.

jrhaus76

I agree. Tune it on a dyno.

Tibo

iTrader: (15)

You two are totally missing the part where he said he has a 305 tbi, not a built engine or an engine with powerful bolt ons or power adders. Dozens of members here could tune that setup from 500 miles away. We already know what tunes work well in that engine. And unless they were a member of these boards I have never even met or heard of someone with the equipment or know how to tune the tbi or TPI ecms so its not like he can go to the local dyno and get it done. At least in the Chicago suburbs most dyno operators can only tune the GM LS and newer ford stuff. Its only beneficial to learn and buy into tuning if you plan on building and modifying engines and keeping the car for a long while.

jrhaus76

Another reason why it sucks to live in Chicago. Local tuner here is great at tuning pre-LS stuff.

25thannivZ28

Im sorry, I did miss that. I just saw "Performance Chip" and the first thing comes to mind is not to waste money. That was my experience, an experience that I have documented proof of with my TPI ecm and dyno print outs. I dont need proof, but hypethetically I guess if you can confidently say its been done and he can make a substantial gain comparitively from 500 miles, go that route. Probably cheaper than running dyno time & paying for tune if such shop was locally available. Would be cool (for the owner) to see the numbers though after tune.

formula forever

Im in the middle of getting a pcmforless tune. Going 180 degree stat. and also wanting to turn off vats. Running no air system. Free flowing offroad exhaust system All that good stuff I would think a tune is in need If your looking to change that stuff.

jrhaus76

This.