this is my first fi car and i was told its to much motor for the computer any truth to that its running rich and has a miss. wachya think thanks guys


1994 Camaro Z28

LT1 engine with .30 bore w/450hp
220/230 .511 cam cc305 LSA112
Eagle Crank Shaft
Eagle Rods
Keith Black Pistons
ARP bolt and studs used all over the build
Port and polished hears
1.6 rocker arms
New valves
Comp Cam PRM valve springs
Comp cam lifters and pushrods
Harmonic Balancer
MSD distributer with MSD cables
BBK headers
all new bearings were used all over the engine
New motor mounts
Heavy duty gaskets

Trans
2500 Stall converter
B&M shift kit
Trans oil cooler

Suspension
all new bushings
new shocks
new springs

new U-Joints on the drive shaft

 

"fi car" huh?

You could use a good PCM tune if you haven't had that done yet; but with the mods you listed, your computer will be fine after a tune.

"FI" is short for "Forced Induction" - meaning you have a supercharger or turbocharger, which I don't see listed on your mod list.

 

Fi can also mean Fuel Injected.....

 

lol ya meant fuel injected sorry bout that

 

FYI - 'FI' also can mean 'Fuel Injection'

OP: Basically the 'Computer' or 'PCM Module' has set tables/ranges of fuel mapping and timing adjustments that are automatically selected based on readings from multiple sensors. It also typically includes other settings such as redline cutoff RPM or even 'Skip Shift' Lockouts for manual transmissions. So getting the PCM tuned really means you are able to adjust those mappings and other settings to match the specifications of your exact motor/power-train combination.

I would highly reccomend talking with a local tuner, and working with them to discuss proper adjustments & actually 'Dyno Tune' the car. But certainly without any changes from factory you are really hindering the performance of the car at the moment. It may even be running so far out of whack, that you may be doing damage with a 450 HP engine build (although not likely that bad).

 

96 Z.....thanks for the info. ya i havent been driving it to much cause its running so rich. i e-mailed agressive proformance today they told $550 to start.

 

That is FAR too much to pay for tuning.

www.pcmforless.com

On a setup like that all you'd really need is a mail-order tune.

Also, did you purchase the car with those mods or is that of your doing?

 

Why would you think that's too much?

I'm running a PCMForLess Tune and have ZERO complaints.... But that's $250 for a list your parts and get it close tune.... If the OP is short on cash and needs a cheap fix, I'd say this is certainly an option.


But that's pretty Standard pricing for Dyno Tuning... Dynos are not cheap, nor is the proper training to not blow up the car, and if done right it should take some time to dial in the car at more than just WOT.... I've heard more horror stories from using 'Cheap' Tuners vs. paying for quality. This is an area where you get what you pay for

 

He said $550 to start, which makes me assume there will be additional charges.

I had a lengthy dyno-session with Bryan Herter for a flat rate of $325. I have also been to several other dyno sessions for both LS and LT cars and the tuners around here don't charge more than ~$400-$450 out the door.

I understand that dyno tuning services are few and far between for LT cars so a high price I suppose isn't out of the ordinary.

The "you get what you pay for" mentality doesn't always apply to tuners. Being in the game for 11 years I've seen more often than not that the high price tuners tune JUST to make money (and usually do a sub-par job) - the low price tuners tune to keep customers coming back with good results and good experience.

Not saying a $550 dyno-tuning session wouldn't be worth it depending on his locale, but that is an AWFUL lot of $$$...