methanal help

[grydergeyer26]

okay here is the deal i run a 4 cylinder on methanal i have a holley black electric pump and a holley big port regulater with no return
i keep having problems will not run right just craps on it self i was wondering if i put a return system on will it solve most of my problems like a imca mod

[dirtrace09]

What kind of fuel pressure are you seeing at idle and at full throttle?

[grydergeyer26]

its constanly at 8 at idle 7 on throttle just like my carb builder said
but i dont have a return system so do i need one to fix my issues very lost on what to do

[Egoracing]

If it is having problems due to vapor locking or boiling fuel the return will help, If not then the return line will not to much if anything.

[grydergeyer26]

not vapor lockin fuel line has no heat by it
now what regulater would u recomend or is the one i have right for my application and fuel pump

[joeltjen]

okay here is the deal i run a 4 cylinder on methanal i have a holley black electric pump and a holley big port regulater with no return
i keep having problems will not run right just craps on it self i was wondering if i put a return system on will it solve most of my problems like a imca mod

you need a retutrn line! you now have the regulator between the pump and carb and it is starving your carb big time. the regulator needs to be after the carb with a return line so your carb gets fuel right away as you open the throttle and pressure drops. also with the return line your fuel pump will last way longer as it is not working against the regulator with fuel that has no place to go with out a return. do a search online for barry grant carb site as i think they have a schematic on how it should be plumbed if you have any questions.

[grydergeyer26]

so do i run the return to the cell or do i need to get electic pump with a return is my question
is it demons website or barry grant?

[grydergeyer26]

i only have a pick up line and vent line n my fuel cell so do i t off for a return at the pump???

[raceman17]

i only have a pick up line and vent line n my fuel cell so do i t off for a return at the pump???

You have to drill a hole into the top of the fuel cell and install a bulkhead fitting for your return.

[dirttrackrocker]

Agree with what everyone else said. Get a BG bypass regulator. The kind that has a jet in it to set idle. install it after the carb. Run a line back and put a fitting in the fuel cell for the return.

[grydergeyer26]

what size does my return have to be the same size as my fuel line or can it be smaller?

[grydergeyer26]

all so can somebody give me te barry grant art nmber please
question can my returngo straight to the regulate my buddy is trying do his that way fr a return n his

[dirttrackrocker]

Barry Grant is out of Business. This is the one you want.

http://www.ebay.com/itm/QUICK-FUEL-B...62303a&vxp=mtr


You need a T in the line feeding the carb. Put the regulator after the carb, the return comes out the bottom, and pressure gauge line out of the back. Hope this diagram helps

[MQueen]

Am I missing something here, 7 psi at WOT is not enough presure for alcohol.

[dirttrackrocker]

I thought the same thing, but, he says it's a 4 cyl. and I have to assume a 2bbl. Not sure if that makes a difference.