good starting fuel pressure for 18 boost

[jackerman]

i finally got a boost controller. now waiting on my computer to come back from being updated fwd 5 is awsome with stock wastegate solenoid. but i have plus 40 and 255 walbro in the car and just wanted a good starting spot so i dont blow this thing up. i am being lazy but i figured most of the people on this sight has done this already. thanks

[JamesL]

Do you have a wideband A/F gauge?

[turbovanman²]

How are you defeating overboost cutout?

Start off at 50 psi and work your way down, watching your wideband or AF gauge.

[JamesL]

How are you defeating overboost cutout?

Start off at 50 psi and work your way down, watching your wideband or AF gauge.

At stage 5, over boost cutout is not an issue. Normally....not knowing all the specifics, 50 is prolly a good pace to start. A WB is something you should put on your car before really pushing the boost with a MBC.

[jackerman]

thanks everybody, now got to get the car to boost

[MR. X]

Wideband or DIE!!

Ok, maybe not that dramatic. IMO every force induced vehicle should have a wideband and a boost gauge. Every modded forced induced vehicle HAS to have a wideband and a good boost gauge. I would also recommend a EGT gauge as well. To many burnt parts from not paying attention to air/fuel ratio's.

BTW Autometer has a new street gauge for about the same price as the AEM. I sell alot of AEM units because they are inexpensive, but they are Chinese and Mexican made. Autometer still makes most of its stuff here. FWD, TU or myself can get them. Vendors only, PM me and Ill give you the part numbers.

I start tuning at 50 or 55 psi unless its running mad fat in which case I turn it down a bit.

[BadAssPerformance]

i finally got a boost controller. now waiting on my computer to come back from being updated fwd 5 is awsome with stock wastegate solenoid. but i have plus 40 and 255 walbro in the car and just wanted a good starting spot so i dont blow this thing up. i am being lazy but i figured most of the people on this sight has done this already. thanks

Which turbo? Whats the rest of your setup? What octane fuel? Gotta have details before answering questions like this.

18 psi has different fuel needs if it is a stock Mitsu turbo or a stock Garrett turbo or a hybrid turbo or a larger turbo...

You mention "fwd 5" so I would say you talk to JamesL directly as the cal is probably set up for a specific package of components and if the cal is matched to the parts, I'm guessing the base fuel pressure specified with the cal is the fuel pressure you are supposed to run with it.

[Turboomni]

thanks everybody, now got to get the car to boost

OMG it';s too late,,,seemed like such a nice young man....oh well.............

[jackerman]

hahaha i have pistons and the head done to motor. +40 injecters 52 tb 2 piece intake exhaut 275 walbro pump. 3 bar map. i was 57psi but i cant get it to boost so not a big deal now. going to go over all vac lines. oh and what does everyone do with the pcv system when you go and do a fmic change with cone filter. my pcv is still there but open where it used to go to the air box.

[audiomaninc]

either run a catch can, or run it to a nipple behind your cone filter. If you're in a pinch, you can also run a hose to the bottom of the engine compartment until your catch can arrives. Just don't leave it dripping right onto your flywheel/clutch...that's no good at all!

[jackerman]

so its not a vacuum leak. i have a pipe to a breather filter on it will be fine. but i will check into a catch. does anybody have good pics of the engine bays. im having trouble dressing mine up. just like to get some ideas and thanks