scoobybry!

iTrader: (2)

How many people have fmic fitted to there classic wrx with out a remap?

joz8968

iTrader: (13)

Don't even go there! IMO

brockalightus

iTrader: (2)

As above........dont go there

New_scooby_04

iTrader: (4)

As above, FMIC's require a remap!

BBB3

iTrader: (7)

you can fit one BUT DONT DRIVE IT ON BOOST drive it off boost until its mapped

howes124

iTrader: (11)

same m8 fitted one to my 1993 wrx advised by mapper to run off boost till mapped.

joz8968

iTrader: (13)

But best not to drive it at all, until day of mapping - if you can possibly avoid doing so so, that is.

If you have to drive then, as said, tickle the throttle as lightly as you dare and never let inlet manifold pressure get out of partial vacuum i.e. keep below 0bar/psi...

JdcTypeR

iTrader: (19)

theres your answer then mate.

Aamar786

iTrader: (1)

i had one on mine for over month without ma ant trust me mate ur car with run like ****, i had so much boost cut, got mine mapped now runs like a dream

Aamar786

iTrader: (1)

what actuli happens if u drive it on boost? i thrashed mine plenty of time without map, i was even boosting turbo 20 psi lol car was throwin flames too, was told this was cause it was over fueling wghich it was doin about 12 mpg, but now mapped and better of fuel 20 - 25mpg mpg but still chuckin flames!!! only 280 bhp and 320 torqe with standard turbo, seems strange

scoobybry!

iTrader: (2)

yep gonna leave it and try and find a decent mappable ecu first cheers lads

joz8968

iTrader: (13)

There's a greater volume of charge air arriving at the throttle body. Plus it's much cooler, therefore denser, than what the OEM ECU's map is designed to see. This could have a serious affect on the AFR as the fuelling may be woefully inadequate for this greater, denser charge of air going into the plenum. If so, then this (potentially) very lean A/F mixture will invariably lead to detonation, to a lesser or greater degree, and could spell curtains for your engine in very short order...