Quote:
Originally Posted by Daox
However, the fact of the matter really is that we have some great knowledgable users here that really do know a lot about engines and how they work, especially when related to efficiency.
That being said, this modification is not responsible for getting you your extra 1 mpg. I would highly recommend looking over the 65+ mods list for staring out ecomodding. Its a very good list. The mods listed are proven modifications that do work. |
Yes, there are some knowledgable people out there who know a lot about engines including my best friend who's an engine builder (not engine assembler), machinist, fabricator and GM tech.
While my engine is very underpowered the air intake muffler delete has in fact improved HP at WOT it has also stopped the hesitation and sputtering when I'm going up hill in a higher gear at partial open throttle as I said in my original write up.
Also, why I only got 1 mpg and not 2 or more is probably because I've been driving with Max A/C on because for the last 3 weeks the heat index has been between 105 and 115 degrees in Missouri. It's not a dry heat either.
I've looked at the modifications on the 65+ mods list and while I agree with most of the mods on there there is no mention on advancing the cam timing (not ignition timing).
COMP CamsŪ - COMP CamsŪ Valve Timing Tutorial
There's a brief write up on it... If this is confusing basically advancing the cam timing brings the peak power (both Torque and HP) down in the RPM range.
A stock cam usually has peak power in the 4000-6000 rpm range... I know of no one who drives on the highway at this speed. Bringing the peak power down moves the vehicle without the engine "breaking a sweat" like on the hotter cam engines that make all either power up in the upper rpm range. This advance in cam timing coupled with the a economy or "RV" cam would optimize the engine for economy.