fuel pressure with jam fcd

[rippon91]

what fuel pressure would i need to run with a jam fcd? ive got a fpr and its running an externally gated ct9. cant mind what i set my old starlet at, cheers!!

[MR-2]

How fcd is related to fpr, nothing. Just use/adjust normal 3,2bar to system.

[rippon91]

well i want to turn up boost so i thought surely the fuel would need turned up?

[5e colin]

stop and dont touch it as i see you never mentioned a wideband !!!!!

buy 1 install it then stick to 11.5 afr on full wot

u will destroy your engine if set up without either lean and go band or rich and unburnt feul will thin out oil leading to bearing failure best to invest the 150£ for a wideband

[rippon91]

would i need wideband with emangeblue or ultimate? im unsure as to what the wide band does

[5e colin]

if your mapping urselve yes if its getting mapped then you dont need to worry they will do everything for you

[MR-2]

well i want to turn up boost so i thought surely the fuel would need turned up?

You have vacuum hose to fpr and it automatically raises pressure, at idle it's 3,2bar and with 0,8bar boost it goes 4,0bar. So if You raise boost to 1,2bar, then there is 4,4bar, automatically.

[5e colin]

^^^^ its 2.3/4 bar stock

[MR-2]

^^^^ its 2.3/4 bar stock

Don't have Starlet repair manual, but MR2 have near 3.0bar fuel pressure as standard.

[patman]

Colin's right on this have played around with fueling before, I'm running 0.7 bar at the moment fpr is set to 2.2/2.3 bar, that's on idle (engine up to temp) getting 11.2/3 in 4th gear at WOT, wouldn't even bother trying to adjust it though without a wideband installed.

Edited May 6, 2016 by patman

[triple j]

U should also be checking for detonation/knock specially with a fcd as it alters the timing.

Edited May 6, 2016 by triple j

[patman]

Quote me someone if I'm wrong here jam fcd are totally different to ones like hks fcd, of course they get rid of fuel cut, but with a hks fcd you have to adjust the fuelling so much with what setting you have it on (I found out that way myself) but a jam fcd you don't?