hi dudes. nearly finished building my s1 and just wonderin if any peeps knew fuel mixture mods on s1 rs. i got the rev limit mod and the fuel pressure mod in check but i need to turn up the fuel for when i turn up the boost. been told this is a manual adjustment so any help useful.

cheers flax.

someone likes amphetemines.lol

 

its just behind flap in metering head, nt recomend doing it without rolling rd

 

HI,

Its built into the fuel pressure actuator , attached to the fuel metering unit.
has 2 screws holding it in place, once removed, you have a brass screw usually,
and you remove this to expose a allen type key this alters the fuel pressure
some are more sensitive than others in my experience, bit fiddly and trial and error
as i remember screw in to increase fuel pressure, a quarter of a turn at a time
then reassemble and check co%, at idle and mid range 3500rpm, approx on chipped car 2.5%idle and 3.5% at mid range, if you dont know what your doing
let a pro do it and setup.

DAVE R.

 

cheers lads, i`m a mechanic by trade and have just nearly finished my s1. got most of the equiptment needed at work so its just a case of seeing what i can do.
i`m thinking of maybe going on my own too so at least if i do it myself i`l know how to do it next time.

any thing else i need to know.

 

decided this mornin gonna get rid of ke jetronic and put cos/ofab system on it.

cheers anyway.