Quote:
Originally Posted by jvincent
I'm subbed to this thread, and it's a very interesting discussion, but I have a question for the modders.
What is your ultimate goal with the changes you are making?
- Increased power for the track?
- Better driveability (i.e. smoother acceleration, reduced knock, etc) ?
- Improved mileage?
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If I were to guess Id say increased top end torque, better drivability.
Drivability and fuel economy is always a trade off because:
1. For FE you move the cams in such a way as to increase MAP as soon as possible and achieve de-throttling this kills driveability
2. If one wants pure driveability, id move the cam timing more towards WOT cam timing earlier in the load. I mean blend the cams towards WOT cam timing not just pop into WOT cams timing. Then Id increase spark at the lower loads to slightly oversparked by a degree or so (non knock limited region). This will improve combustion stabilty at the cost of some FE.
So yea to answer the question we are trying to understand the engine better that way each person can tune it to his/her liking. Some guys are all about FE and we can do that and some are all about performance (like me) and we can do that too.