just been reading some threads on remapping,saying if it is decatted it could run lean and detonate mine is decatted and wondering if this is true cause i am worried it is going to go bang,won't have the money for a month or so to get it mapped,will it be safe to keep using?thanks in advance
daniel

 

search function in Technical

 

will do thanks

 

should be ok, its advisable to reset ecu, but biggest issue is overboost when you give it beans. you'd know if it was a prob, should be ok without remap

 

when you put your foot down it does seem to pause all the way up the revs only for a split second but you can feel it
how do you reset the ecu? it has the ppp it wouldn't be affected by resetting it would it?thanks for the reply
daniel

 

sounds like its just slightly holding back now and again due to boost being high, if its only doing it now and again i wouldn't worry.

not sure how the ppp ecu adapts to decats, in theory it should reset back to the ppp map, but then i don't know if its locked like that or if it learns from that point.

 

thanks for that better leave it for now just in case,thanks for the reply

 

All IMO (and no I don't sell remaps...)

A decat and a better exhaust will greatly reduce resistance downstream of the turbo.

One of the things that is likely to do is to change the point at which the turbo spools up and affect how aggressively it boosts.

ECU maps aren't linear, a lot of time and effort is spent making sure the engine behaves properly during spool and boost transitions.

You may well be OK without a remap but in order to realize the full benefit of any changes you make, you should get one.


J.

 

Last time i emailed kev at the scoobyclinic he said that m99 is fine running a decat or sports cat without a remap. Obviously a remap would give you the full potential from any mods u have.

Dave

 

 

abit of peace of mind there thanks for that some of the stuff i have read has scared me to death would resetting the ecu benefit it or do nothing? thanks again
daniel

 

I always email the scoobyclinic if i have any questions they usually reply within the day.

 

cheers for the reply i will email them
daniel

 

i just had my full afterburner vortex decat fitted to me MY99 WRX.... and shhheeeaaasseee! sounds amazing... im sooo happy!

i found the same tho m8, it kind of hesitates a bit then u feel the straight throughness but i darnt give it any beans until my remap next week!

 

What MY car?

 

Thats what I was thinking Harvey!
Basically, upto MY00, you should be fine. If it is a newage age car (MY01+), then you DO need a remap. However, aslong as you drive off boost until the remap, you'll be fine!

 

thanks for the replies it is a myo1 uk300 i will get it mapped but it won't be for a few weeks i will take it easy ish until then, thanks again
daniel