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Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: 93type-x on August 30, 2005, 08:32:48 PM

Title: some kind of cut?
Post by: 93type-x on August 30, 2005, 08:32:48 PM
I not long had a rebuild done and a bit of porting... all good but I now get some sort of cut at 6500 .. boosting to .7/.8 sometimes less on non seq ,stock ecu,with fuel cut defensor, safc and a big V mount ic... still have cat on... Before the rebuild I could redline it but not now... Is this a built in thing to stop me killing it or an electrical thing?  I have tried without the apexi and no change :confused:  and I got done :spank by a 180sx (THE SHAME) feel free....  :flamed


Si
Title: some kind of cut?
Post by: Steve Burnett on August 30, 2005, 08:42:52 PM
Im a little confused. You say you have the stock ECU but then later you say you have tried it without the Apexi. Is that the Apexi PFC??
Firs thing I would say you need to do is get an Apexi fitted and mapped asap. With those mods the stock ECU will never handle it. Id also suggest fueling mods. Although you have a FCD I doubt that will be stopping the fuel cut.
That two things will deffo help!
Title: some kind of cut?
Post by: interloper393 on September 04, 2005, 03:03:38 PM
Quote from: 93type-xI not long had a rebuild done and a bit of porting... all good but I now get some sort of cut at 6500 .. boosting to .7/.8 sometimes less on non seq ,stock ecu,with fuel cut defensor, safc and a big V mount ic... still have cat on... Before the rebuild I could redline it but not now... Is this a built in thing to stop me killing it or an electrical thing?  I have tried without the apexi and no change :confused:  and I got done :spank by a 180sx (THE SHAME) feel free....  :flamed


Si

Stock ecu? id say thats where the probs coming from, with the stock ecu the most u cn do is add air filters and a backbox from what iv read n been told,..
Just had a rebuild on mine n wanted her ported but was gunna cost me a new ecu n powercommander to do it :(.. cant have her ported without im affraid buddy. also read somewhere thats having it ported best to add another injector for more fuel   :evillaugh
Title: some kind of cut?
Post by: antnicuk on September 04, 2005, 03:10:12 PM
is it an adjustable boost cut defender,  it may not be working,  as above, i would get a power FC,   best 500 quid plus mapping you will spend,  especially on your new engine as you may find the warranty will not cover it if it goes bang due to detonation.
Title: some kind of cut?
Post by: 93type-x on September 04, 2005, 10:07:34 PM
thanks guys, I am waiting for an apexi fc at the moment... i have tried unplugging the knock sensor too.But ill just have to stay safe now till i get the apexi... its going to be a winter project thing i think...

Si
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