found it https://www.evolutionm.net/forums/ev...-pressure.html

 

Ya, I just got done re-reading that thread. I'm thinking at the very least I want to see what kind of fuel pressure I've got going on...

 

yep..not sure about the impact of e85 on that rubber gasket thing in there...

 

Sean - I don't know if this helps, but I had a problem with oil smoke on deceleration when my catch can vent opening was not large enough. I opened it up wider and problem was instantly fixed.

Mark

 

Three observations I'm making.

1) the problem started after the surge tank was installed.
2) the problem happens while decelerating after WOT.
3) the problem does NOT happen while idling or while decelerating after partial throttle.

If the above observations are correct then I would believe it must have something to do with the "extra" charge of fuel pressurized in the surge tank and lines that occurs on WOT that's surging out after throttle lift.

I say this mainly because there is no smoke on idle or deceleration after partial throttle acceleration.

Just a theory though.

 

I have two catch cans. One's lines are easy to see and unless there's something in there it's ok.

The other (from the valve cover to the intake) has one like (valve cover to catch can) that's buried. It's possible it's kinked. It's buried under the intake so that's gonna have to wait...

 

FPR over run?, that is why most pumps are set up to only come on / run at higher boost

 

this is exactly what Chris@COBB suggested yesterday to me.

I'm going to rewire it so that the pump is getting powered by the switched 5/12v that's right now going to the in tank pump and run the in tank pump on the constant 12v that's right now going to the external pump.

That should make things a lot better I think.

I *might* look at widening the siphon orifice in the fuel pump housing, but I don't think that's going to be necessary since the stock return is going to the surge tank and then into the return on the stock tank.

 

i vote return car to stock, then proceed to drive. call it a day.

 

That advice go both ways?

 

LOL at the guy in the truck trying to keep up with you.

 

of course it does.

I for one am a bit tired of fixing the Evo. It needs to become a track queen or be gone!

 

Your needs a Tums chewable. That should make the gas go away.

 

very great Idea. Im just saying

 

I say get an fpr and get your base pressure in line. Any reason you went with a 255 instead of a bosch 044 or something similar? On the other hand, white smoke usually means coolant, make sure your head gasket is still good. I didn't read the whole thread so I may be way off base.