I\'ve had my REX 2 weeks now and..... well most of you own or have owned one so know how god dammed happy I am right now :)
My question is:
Will running a 92 FD on normal unleaded cause any problems mechanicaly to the car or will I just lose some performance.
What ecu does the car have????
As John hinted it depends on mods, ecu, is it a UK or import car, amount of boost etc if you put a list together with the mods thats done sure we can help.
Kevin
Until you know what mods you have and ecu run it on optimax or similar, as its not worth the risk of detonation until sorted. Even when I have a tunable ecu I still ran Optimax.
As far as I know it is a stock ECU and it is a Jap import. So far I\'ve filled it up twice with normal unleaded. The engine was rebuilt 2 years ago and it has an new exhaust system and dump valve.
No matter what mods there are, if it\'s the standard ECU and a Jap import, it\'s designed to run 100RON fuel. We don\'t have that, and normal unleaded is only 95. You should run it on the highest octane rated fuel you can find (Super = 97, Optimax = 98). Using an octance booster won\'t hurt either.
If you continue to run on 95, you run the risk of detonation, which will cause an apex seal to be spat out the exhaust, and you be at least £2.5k in the pocket lighter.
Until you have it checked over by a rotary expert run it on 97-98-or-99 ron unleaded fuel. The reason being that in Japan the ecu is set to run on 100 ron fuel. Therefore you may be running lean = det = rebuild. The most important mod you need to get done is having an Apexi + PFC commander ecu fitted. Then your FD can be mapped properly and your a/f ( air/fuel ) set up in the safe zone for our low ron fuel. Give Pip a ring at WGT ( banner above ) next to RE:WORX he would be my next choice of tuner in this country. HTH. :)
Thanks for the info chaps ! I\'ll be calling WGT this afternoon. I can see this is going to turn into an obsession for me now, I\'m wanting to learn all about my REX and how it works. Don\'t think my girlfriend is going to be too happy though!
QuoteDon\'t think my girlfriend is going to be too happy though!
she\'ll come round...they all do!
There is one thing that the REX can never be that she is though.........
............and that\'s, as expensive !
Quote from: Fr1dayThere is one thing that the REX can never be that she is though.........
............and that\'s, as expensive !
Not sure think it\'ll be a close run thing, but they all come around in the end.. Mine did and now wants one of her very own lol :Giggle
Quote from: Fr1dayThere is one thing that the REX can never be that she is though.........
............and that\'s, as expensive !
Was i the only one thinking of a different answer to that?!? ;) :evillaugh
What fuel is recomended for N/A stock 12A and 13B engines?