Do I need Engine tuning? Where R they?

[99Firehawk]

Does anyone know of a Dyno\Engine tuner in the Canada, Southwestern Ontario area?

Mods I have are Underdrive pully, Predator tune, Ported TB, Ls6 intake, Lid+K&N+Bellows+Free mods, TB full throttle Voltage TPS. Do I need a dyno tune?

[99blueZ]

i dyno tune would help, but i wouldn't get one until you get headers

[99Firehawk]

I guess I should ask, do you think there is a chance it will be running to lean, since I have introduced more air, and increased flow and advanced timing, but have not changed injectors or tuned for more fuel?

[99blueZ]

yes you could be running lean. But it shouldn't be dangerously too lean. There are many people driving around with headers and no tune.

[99Firehawk]

Hmmm.. I thought i had read that headers make the car run more rich?
:wall:

[99blueZ]

Yes you are right, headers will cause an engine to run rich. I didn't type a complete thought. lol As far as running lean- you only have a ported TB and a LS6. Those will both increase the airflow into the engine, but not soo much that it will lean it out significantly. I have both on my car and it runs great. And i am driving on completely stock tuning.

While a tune will benefit you right now, i wouldn't get one unless you are done with modding. A tune will likely run you $400+ u.s. If you plan on getting headers in the future, or something like a cam, then wait until that work is done to get the tune. You will see much greater benfits from a tune then. Hope this helps!