dannyblackpool

is there a afr advisable if you havnt a egt gauge fitted, ive got a wideband for the motor when it lands and have been told that the mods the car has will make it overfuel and it will need trimming abit,but how much dare i lean it off as havnt a egt?

Anonymous

Who told you what?

What mods?


The problem with leaning things off a bit to sort it out being too rich in one place is that normally results in too lean somehwere else.



But to answer the question, depending on the amount of load it will generally go from about 11:1 to 15:1 in terms of what is acceptable

Ie 500bhp cossie @ 2 bar of boost = 11:1
cruising on motorway at vacuum = 15:1

dannyblackpool

binliner stage 1 mods m8 (decat,stainless,uprated turbo elbow and downpipe,induction kit) running 10psi is known to make em rich and need trimming

Anonymous

Oh right, didnt even know you had one!

Best thing you can do is get it round to Stu's surely?


How do people normally "trim" it then?

TiB

iTrader: (1)

I'd say 11/1 is too rich personally,

but it'd be safe

dannyblackpool

apexi safc is common stage 1 way (std ecu) and not got the flocker yet its still in port in japan

Anonymous

he did say without any EGT, so its better safe than sorry really IMHO.



Those safcr things are pretty easy to use, so not a bad way of doing it, but for the money they cost, i would just get stu or someone to remap it

dannyblackpool

cant remap std ecus supposedly and dont intend tuning as such just want to make sure what ive got already is safe

Anonymous

Fair enough

Well i would borrow an EGT from someone and then set it up using that too, as TiB says you want to be leaner than "really safe" ideally, but to do that you need to keep an eye on temps, especially if its on the standard turbo as they REALLY dont like a lot of heat (as im sure you of all people know!)

dannyblackpool

not sure if its got the shite unit on it as like i said not seen it yet,but 1st obvious thing is steel up the std unit, have to see what turns up i spose lol