i was told that the std wiring on my car has resistors that might cap the output of my uprated pump.

i'm getting det at high revs so was suggested to re-wrie the pump through a relay so it is getting more power through it

can someone tell me how to go about this? i'm under the impression that this is done alot on cossies?

wire from the battery going into the relay, one wire form the igntion to give the switchable feed, and the live wire going to the pump?

this sound right? anyone know what relay pins for what?

Cheers, Tom.

 

you put a walbro pump on it? if so, did you use the orginal sock or the new one that came wth the pump?

from what i remember about 200's and their pumps, there is no resistors at all inline or whatevr with the pump - it sees nominal battery voltage all the time.

best asking on the sxoc.co.uk forums tho.

det at high revs might be to much advance on the ignition curve - get it booked in for a setup somewhere reputable - like Stu

 

i was thinking of interpro?

i'm from cardiff and don't want to travel too far

my walbro came from america so it might be the wrong model i need (they seem to do lots with different flow rates and pressures)

i'll have to take it back out and check i think

 

i used the original sock

 

the feed for the fuel pump relay normally needs to come from the engine ECU, not from the ignition. the ECU must have control over it during starting and more importantly stopping.

 

i wired my pump straight from the battery using 8 gauge amp wire, fused @ the battery running through a relay tripped by the original wiring and used 8 gauge
for the earth aswell, got a slightly uprated alternater and it reads 14 vlts @ the pump

 

14V same as mine then