just wondering if anyone has used a rising rate fuel regulator on a turbo/supercharged A series? if so, what brand? i was looking at a malpassi unit off ebay. just want to know the best way to go, and opinions of other members.

yea malpassi are alright and can be had cheap, get the 1:1 ratio some of the efi turbo ones are a higher ratio which you wont need. Sard are good too but usually dearer.

The one i was looking at on ebay is a 1:1 and it's good for applications under 15psi and it's only $160 to my door. I got a fuel reg but its not a rising rate, it's just a cheap 'knock off' that a mate gave me, it doesn't seem to keep up that well.

The other Malpassi fuel reg that i could find is a 1:1.7 and its good for over 15 psi.

Which one would be better to run through a carby(350 Holley)? because i want to run about the boost at around 15psi.

i recomend getting malpassi. other wise most of the other cheaper designs make your fuel pump work incorrectly. i would say get the 1:1.1 ratio which is good for up to 15 psi and usually cost about $160. make sure you request a carby rising rate aswell otherwise you may find that the reg will limit your fuel supply too much

Did you run a R/R fuel regulator on you carby set up?

hey Steveo, OT, but I've been meaning to ask you for a while if you've made any mods to your Holley to support your blowthrough set up.

yes you defintely have to with carby setups

Bart: i should do a thread on the things needed for a holley to handle a boosted application, anyway for a quick explanation, firstly i used solid floats because as you could imagine as soon as boost is applied to the system it crushes the normal brass floats. It has been boost referenced and i also had to re-jet it because i got the holley off my uncle who had it on a 202 holden motor in a torana. Its still a work in progress however.

Jake: what sort of fuel Reg did you have on your carby set up?

i used the malpassi rising rate reg designed for carbys with a ratio of 1:1.1

Is this the one? did it work ok?