Mazda Rotary Club

General => General Technical => Topic started by: tyson23 on July 16, 2007, 08:46:12 PM

Title: Help Please
Post by: tyson23 on July 16, 2007, 08:46:12 PM
:Hammer hi i have a street ported engine with straight through exhaust(de-cat\'d) standard turbo\'s,intercooler and air intake boosting about 10psi standard with a few spikes that i avoid until i get my boost controller and power fc installed i\'ve also got standard injectors. when i give it wot i sometimes get some detonation which is a killer can someone advise why its doing it.....:2Mad


and what mods etc to do like maybe fuel pump upgrade
Title: Help Please
Post by: Fish on July 16, 2007, 09:05:12 PM
Its doing it because the ECU cannot control the boost. Fitting a boost controller before fitting a Power FC should help, but PFC and BC will sort it out.

Fish
Title: Help Please
Post by: Carl on July 16, 2007, 09:50:12 PM
Quote from: tyson23:Hammer hi i have a street ported engine with straight through exhaust(de-cat\'d) standard turbo\'s,intercooler and air intake boosting about 10psi standard with a few spikes that i avoid until i get my boost controller and power fc installed i\'ve also got standard injectors. when i give it wot i sometimes get some detonation which is a killer can someone advise why its doing it.....:2Mad


and what mods etc to do like maybe fuel pump upgrade


You need to get your power FC put on the car and mapped and the boost control setup on it too.
You do not need a seperate boost controller if running the twin turbo\'s still.The Apexi ECU can be setup to control the boost properly.
The stock ECU does not increase the amount of fuel going into the engine at higher boost levels,so the engine run\'s lean.
Regards
Carl
Title: Help Please
Post by: Jim_rx7 on July 16, 2007, 10:11:45 PM
Erm.... calm down on the go fast pedal until you get the PFC fitted and mapped.

I\'ve just put a new engine into my car and I\'m going no more than 3Krpm and zero boost until I get my PFC mapped. Better to be safe than sorry!!