Fuel temperatures

[B Aceves]

Originally Posted by Ian Hill

I would think cool cans and things like icing the intake would either A) only work if you do it every pass, or B) only work if your set up was not right in the first place. I an looking for a bracket car type of fix. Run it the coolest way possible as often as I can. I run one to two jet sizes rich all year. My engine smokes on start up in the hot summer I'm so heavy on fuel, but the motor stays consistant. I know if I ever end up in heads up race ill need to rejet , but I am thinking, if my fuel was cooler then maybe I could go down in jet size and still be at the same air fuel mixture.

Ian

Huh!! you lost me at A) lol

[Ian Hill]

well, you always here of guys doing all kinds of stuff to their car for the headsup passes. i understand the light weight oil, but to all of a sudden start cooling the fuel, or intake would drastically change the fuel density therefore the need for a jet change...

also, B Aceves - you any relation to Mike Aceves from Hollister California? was a good friend i haven't heard from in about 6-8 years...at the time he was very much into drag cars and drag slot cars. i was going to visit California and stay with him, but it never panned out.

Ian

[Ed Wright]

Smoking at start up has absolutely nothing to do with jets.

[B Aceves]

Originally Posted by Ian Hill

well, you always here of guys doing all kinds of stuff to their car for the headsup passes. i understand the light weight oil, but to all of a sudden start cooling the fuel, or intake would drastically change the fuel density therefore the need for a jet change...

also, B Aceves - you any relation to Mike Aceves from Hollister California? was a good friend i haven't heard from in about 6-8 years...at the time he was very much into drag cars and drag slot cars. i was going to visit California and stay with him, but it never panned out.

Ian

Yes Ian, Mike is my brother and is doing well, now married with two kids lol Small world huh !! Where are you from ? I will pass this info on to him im sure he will get a kick out of it. All his Drag slot stuff is sittin in a box including his world record car. Unfortunate all the tracks in this area are long gone. PM me if you want to chat some more.....thx

[Mike Croley]

The lower the fuel temp , the better . Just a few degrees won't make a huge difference in performance , but every little bit helps .
Restrictions in the fuel system will increase fuel temps , but not enough to cause a major loss in performance . Running the fuel line near any source of high heat will have much more of an effect .
As the fuel temp goes down , the density changes . So jet accordingly and then cool the fuel the same way and for the same duration before each run .

[Ed Wright]

Ian, you don't have to re-tune the car for cold manifolds and cold fuel to help. You are mistaken there. Btw, you need to fix that black smoke at start-up. That tends to wash oil from the cylinder walls, which is a ring seal killer.