maxvol

iTrader: (2)

Well I had some more time to tinker with the 12A Blowthrough.. changed a few gaskets and went from an F-11 Emultion tube to an F-16

But I am still having a hard time with it running.

Weber 48
F-16 E-Tube
235 Main
145 Air
80 Idle

FPR Raising Rate
GSL-SE Pump
NO MSD
Locked Dizzy

So this is whats happening.. I finally got it to IDLE well 2,000RPM and this is where the problems start.. the car will hold Idle at 2,000RPM and the wideband will show some readings like 14,3...15.6....then LEAN right out.. the Idle drops slowly to 800 - 900 RPM the engine starts to stumble and then it will just pick up Idle again and go to 2,000RPM and repeat.. I got it to warm up and it still does that.. and the car seems to REV slow..

Now Im thinking the issue with the Idle has something to do with the bowl levels.. again not sure ...Vaccum leak?? arggggg...

Anyone got any Ideas?

Hyper4mance2k

iTrader: (40)

you have a vaccum leeak somewhere. with those settings that's the only logical situation. if you're turbo and you're running a f-16 you're going to blow your **** up. that e-tube is way too lean, although it has nothing to do with your idle problem.
https://www.rx7club.com/1st-generation-specific-1979-1985-18/weber-emulsion-tubes-805950/

maxvol

iTrader: (2)

Thank you I will look into the Vaccum leak.. I will switch back to F11 for now and will order an F7 tube your write up is excelent..

Thank you for your input.