The Hooker 2055's with the AIR tubes come with a better y-pipe. The 2460's dont come with a y-pipe and the recommended y-pipe is worse than the one for the 2055's.
Wrong.. The TPI system accounts for the air injection by adding 100mv to the o2 readings. So when you remove the air injection, but the computer still thinks its there you run 100mv LEANER. Obviously this kills performance.
You can modify this setting in the prom, or you can reconnect your air..
If anyone would like to chime in and tell me i'm wrong, I'll be glad to post the section of code from the bin where this happens.
-- Joe
Just curious why you say running leaner would kill performance. Most of my NA C5s I always had tuned with H&C, Headers, and CAI were tuned to 12.9-13.1 AFR..with stoich at 14.7. Cars made over 400 whp easy. Or are you stating that it is so much leaner that it is resulting in engine knock and as a result retarding the timing..therefore killing performance. If it is leaner and doesn't knock (or ping) then the car is going to make more power.
i have a tbi and i want to remove the air and the air conditioning pump, so if i changed my whole ecm out to a ecm from a 305 pickup truck with no emissions gear, wouldn't that eliminate the lean air/fuel mixture???
in theroy shouldn't the "emissionless" (a new word:O!) computer compensate for that missing information? or am i totally off my rocker??
A.I.R. means Air Injection Reactor, and its the scientific name for the emissions-control system that takes in regular air thru the air pump (part of the accessories on the front of the engine) and distributes that air to either the catalytic converter, or the exhaust manifolds, thru a couple valves that are controlled by the computer. The extra air serves to turn the carbon monoxide in the exhaust into carbon dioxide.
On my 305 TPI with a ZZ4 cam, slightly better heads, headman shorties, catco cat, no air and no EGR passed NJ inspection but my car was also retuned after all that work was done. Only thing that wasnt well below levels was NOx, which was right at standard. Ill have to look at the last time I had it inspected, see what it did...
A.I.R. means Air Injection Reactor, and its the scientific name for the emissions-control system that takes in regular air thru the air pump (part of the accessories on the front of the engine) and distributes that air to either the catalytic converter, or the exhaust manifolds, thru a couple valves that are controlled by the computer. The extra air serves to turn the carbon monoxide in the exhaust into carbon dioxide. http://en.wikipedia.org/wiki/Air_injection_reactor
Hey Kevin,
I eliminated the AIR. How would I route the hoses taking in consideration having a Paxton SC? Can you provide a diagram? Also do I need to flash my ecu?
