just wanted to know

[purplebat66]

I was curious if anybody has had this experience.I have added the simple bolt ons airlid, smooth bellows, slp exhaust, msd wires,and k&n air filter.The car feels strong but i feel like its not up to par on tuesday i am giong to take it to get it dynotunned at the vette dr in amityville ny .The car is running a little lean and i feel like its not getting great mileage.I wonder if any of my bolt ons have affected the cars performance, thank you.

[Mr. Luos]

How do you know it is lean?

Most of the time, bolt-ons will get you running rich.
The bolt-ons will get you 40RWHP at the most (on average). The heat will also slow the car down a little bit.

[purplebat66]

sorry thats right lean thats what i meant.

[purplebat66]

sorry i meant rich

[Mr. Luos]

Headers?

[purplebat66]

why does the car run rich and will the tune help the cars power

[purplebat66]

no no headers

[Mr. Luos]

why does the car run rich and will the tune help the cars power
What MAF?

They tend to run rich to prevent issues with going lean. Safety.
I don't think a tune will get you very much though without having headers.

[Speed Psychosis]

lean is very dangerous to an engine. cuts its life. every car is different and needs a personal tune for optimum performance. since gm obviously couldn't do that, they tune it so that all run a little rich. for some reason mods make it worse, especially headers.

[Mr. Luos]

for some reason mods make it worse, especially headers.
Headers because it has the stock timing and fueling tables loaded...which use the O2's to read exhaust A/F. More flow across those O2's and they try to adjust by adding fuel.

[Speed Psychosis]

^ah, cool