The only way the car will last for ever is not using it.

Actually that will ruin it even faster!


http://assets.nydailynews.com/polopo...a20n-1-web.jpg

Hahaha! Not exactly what I have in mind.

Sir your statement is true but your didn't answer. It will continue to be carb until you adjust the tune.

Heat that's the enemy, you have to keep fluids in operating temps at all times if you really desire the car to last. But I can't help more due to tha lack of info about your car and goal... A good tune could help a lot, but is only part of the equation.

You're in Cali...
 

You should be more worried about what F/I solution you'll be using than what compression ratio you're running..

Also, I believe that our cars won't have a sniffer test when they start getting tested, so you would only need to pass the OBD-II test and the visual inspection.

If you plan on using a non CARBed turbo or other F/I solution, you'll have to remove it for inspection, which means you'll have to change the tune.

With lower compression, you'll just have a different tune that makes less power, but if the tune is right it should still pass.

Jaden

No. Modifying the engine internals (unless the new internals also have a CARB approval) will make it not CARB legal.

It'll also run way less than ideally on a lower c/r on the tune meant for stock c/r.

Nop.

Agree, but to clarify.

The only thing that you should do different on tune with same everything except from cr, is timing, no need to touch fuel.

You'll never tune my car, that's for sure :D

If you think the only thing you'd need to change after dropping the C/R like 3 full points is timing, you're in for a world of pain.

That much of a change is going to drastically alter the volumetric efficiency of the engine, and would require a full re-tune.

Sir today is your lucky day!

I am not a tuner (not professional and the ones I have done were finish by real professional tuner).

But what is volumetric efficiency? How can it be changed or altered? :bellyroll:

Volumetric efficiency, is the amount air (CFM) that gets to the "air chamber" to be used to produce the controlled explosion...
So it could be altered with modifications to the intake, heads (port, valves # and size) cams (duration and lift) exhaust, also and more dramatic with FI but no with cr. Sorry.

:cheers: