Correct way to tune a modified 86
Thread Starter
Burning Brakes
Joined: Jun 2002
Posts: 767
Likes: 1
From: Noble OK
Correct way to tune a modified 86
I recently purchased an 86 that has an Accel Super Ram, AFR Heads, and a roller cam motor. Seems to not run up to its potential, checked plugs, fuel pressure, replaced O2 sensor, and checked timing with no change in performance. Pulled down computer box and found a non stock chip, but not sure who it was done by. My question is this should I take it to a shop and let them run a diagnostic or do a dyno pull with wide band O2 read, or something else to check to see where my problem is. THX
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Re: Correct way to tune a modified 86 (Xssesive)
I"d recommend the dyno, wide band 02 route.
If you aren't getting any error codes, that's the best way to see where the PROM needs tweaking.
I assuming that there are no mechanical problems or restricted exhaust, etc.
Jake
If you aren't getting any error codes, that's the best way to see where the PROM needs tweaking.
I assuming that there are no mechanical problems or restricted exhaust, etc.
Jake
Le Mans Master
Joined: Apr 2000
Posts: 6,341
Likes: 1
From: Shelton CT
Re: Correct way to tune a modified 86 (Xssesive)
Before you do anything, what is your idea of "..not running up to it's potential.."??
Do you know it ran better before? Is it idling funny, backfiring, no pickup?
Do you know it ran better before? Is it idling funny, backfiring, no pickup?
