Help with warm start issue - Whipple

[khsonic03]

I feel like someone should have mentioned that the boost-a-pump might not have a check valve. Which makes warm starts an issue. I had this problem on my Whipple until I got a fuel system. Chances are the issue is mechanical.

Thanks. This only applies when you replace the fuel pump. I didn't replace the pump; only used a BAP. I believe the newer DW400's have the check valve now, too.

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[acemastr]

Sort of lol.

The engine was smoke tested multiple times and the only leakage was around the Whipple TB set screw. Got a new TB and there was no change.

The tuner made a few adjustments that finally seemed to settle it out. I would say 85% there.

I did read in another thread where intake alterations can affect idle/startup due to MAF turbulence. I have a heavily altered intake opening due to my aftermarket bumper. I intend on trying to block it off and see if that helps get me the rest of the way there, but haven't had a chance to play around with it yet.

I'll post an update when I finally get around to it, but as of now, the car is not experiencing the issues to the same degree that it was when I posted this, so not as much of a priority at this point.

Did you ever fix this? Same issue, Roush blower.