01SS - Restored Project underway!

[OIF1VET]

Git er done!

[Darren]

Your going to spray it right ?

[OVRKILL]

Your going to spray it right ?

[OIF1VET]

Your going to spray it right ?

Heard he has a hidden 5 shot...

[Lucky SOB]

Some suspected intake reversion in the early rpm's

can you esplain this?

[ktl711]

From a Google search:

It is the late closing of intake valves that cause "reversion" in high performance engines. Reversion is the word most commonly used to describe the fog of air/fuel ejected from the mouth of the carburetor when the throttle is opened at low rpm. Reversion disappears when the engine rpm becomes high enough that the intake valves close before the piston can push air/fuel mixture back through them.

[Lucky SOB]

From a Google search:

It is the late closing of intake valves that cause "reversion" in high performance engines. Reversion is the word most commonly used to describe the fog of air/fuel ejected from the mouth of the carburetor when the throttle is opened at low rpm. Reversion disappears when the engine rpm becomes high enough that the intake valves close before the piston can push air/fuel mixture back through them.

so.... valve float at low RPM?

[1BADAIR]

so.... valve float at low RPM?

no.
valve timing, intake runner length, intake velocity and more will cause the intake charge to revert back into the intake instead of the bore

[sman]

Woudnt there be some potential for this "fog" to ignite?

[OVRKILL]

no.
valve timing, intake runner length, intake velocity and more will cause the intake charge to revert back into the intake instead of the bore

^^^ Exactly....


However its not as bad as its "defined". I suspected the intake valve was not closing soon enough, but after further discussions with Shawn this is a relatively common occurence with ITB's primarily due to the runner length and velocity. The dyno header configuration may be contributing as well...

Not sure if the next cam (hehehehe - not confirmed but being discussed) will make any improvements based on Shawn's assesment.

[Darren]

800 isnt enough, spray it and get some manly numbers

[BlackBirdDaddy]

[OVRKILL]

800 isnt enough, spray it and get some manly numbers

Double

Of all people Jim, you know how this process works.....one step forward, six back, etc. On another note, my body shop guy stopped by the other nite to discuss some cosmetic changes in the cowl area (just in case) and on the exterior

[BlackBirdDaddy]

Of all people Jim, you know how this process works.....one step forward, six back, etc. On another note, my body shop guy stopped by the other nite to discuss some cosmetic changes in the cowl area (just in case) and on the exterior

Oh yes, believe me I know. I was wondering what you were doing with that cowl because I seen your bodyman a couple of weeks back and he mentioned your cowl rework. It may get serious when you start getting into the windshield!

Oh by the way, your w/s washer bottle looks good!

[OVRKILL]

I was wondering what you were doing with that cowl because I seen your bodyman a couple of weeks back and he mentioned your cowl rework. It may get serious when you start getting into the windshield!

Oh by the way, your w/s washer bottle looks good!

Looks like I have to move some of this work out of state.......