Microtech Wheres your timing at while cruising?
#1
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Wheres your timing at while cruising?
Im just wondering what an efficient range is for cruising, in the 20-25 in of vac range. Ive got a stock-port engine and an LT8S. Right now Im seeing 25-30 deg BTDC and Im wondering if I can go for more, like 30-40 degrees advance. I want to squeeze some mileage out of it for a 2000 mile trip next week!
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Learned alot | Alot to go
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i run a wolf, but that shouldnt matter
med-high vac tapers from 20ish sub 3k to 40deg to probably 6k slowly droping to 30's iirc
was getting almost 20mpg on long highway drives keeping my foot out of boost most of the time
stock port cosmo re with a t04s
med-high vac tapers from 20ish sub 3k to 40deg to probably 6k slowly droping to 30's iirc
was getting almost 20mpg on long highway drives keeping my foot out of boost most of the time
stock port cosmo re with a t04s
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OK so as long as Im in a high vacuum range then 40 deg of advance is ok? Ive searched for more specifics on timing advance (and retard under boost) and I didnt find much. A lot of people say, "well every engine and setup is different" but there must be some general range
#4
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Well the ignition depends on engine revs and loads. Your example of 40° advanced may be OK for high RPM ( past 4500RPM) but them may be not OK for lower engine speeds. (while Rotor-speeds increase but the fuel still takes the same time to ignite and burn)
Next point, what do you mean with high vacuum?
My advice to you would be to visit a good tuner and let them setup your car. Of course it will cost you, but it is also so much trouble- free!
REgards
Iwan
Next point, what do you mean with high vacuum?
My advice to you would be to visit a good tuner and let them setup your car. Of course it will cost you, but it is also so much trouble- free!
REgards
Iwan
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