How much intake modding can the computer adjust for?
Thread Starter
Le Mans Master
Joined: Aug 2000
Posts: 8,762
Likes: 2
From: Murphy TX
How much intake modding can the computer adjust for?
I'm curious how much modding you can do on the intake before fuel supply becomes an issue. Maybe this is a dumb question, but I'm just curious how far the computer can adjust.
Clearly everyone does the standard intake (new filter, cold air etc), then many add the air bridge, new MAF, bigger throttle body etc. Can all this be done with no need to increase fuel? (i.e. bigger injectors etc?)
Clearly everyone does the standard intake (new filter, cold air etc), then many add the air bridge, new MAF, bigger throttle body etc. Can all this be done with no need to increase fuel? (i.e. bigger injectors etc?)
Melting Slicks
Joined: Jan 2001
Posts: 2,635
Likes: 2
From: Aloha, Oregon
Re: How much intake modding can the computer adjust for? (yellow01)
If I understand your question correctly, you're asking how much hp is the fuel injectors/system good for? -stock fuel injectors are good for ~450rwhp (some push them considerably more). The fuel system is good for ~575rwhp. You will not see these numbers with strictly bolt-ons and a stock motor, so you will be fine. However, you will need to tune your pcm for optimum results as you bolt on more items such as headers and bigger intake/TB.
The pcm will not automatically adjust for your mods until LTFTs go beyond +/-25% of stoic at part throttle (closed loop) driving. And even so, this would never be optimum part throttle tuning. In addition, the computer will not adjust any WOT/PE parameters on its own at any time. This is why you will want to consider pcm tuning once you get beyond the more basic bolt-ons such as cold air filter and cat back exhaust. If you put on a full LT header system and bigger intake & TB, you will need tuning.
Robert
http://www.gen3motorsports.com
[Modified by rwj383, 3:39 PM 5/30/2004]
The pcm will not automatically adjust for your mods until LTFTs go beyond +/-25% of stoic at part throttle (closed loop) driving. And even so, this would never be optimum part throttle tuning. In addition, the computer will not adjust any WOT/PE parameters on its own at any time. This is why you will want to consider pcm tuning once you get beyond the more basic bolt-ons such as cold air filter and cat back exhaust. If you put on a full LT header system and bigger intake & TB, you will need tuning.
Robert
http://www.gen3motorsports.com
[Modified by rwj383, 3:39 PM 5/30/2004]
