Hello,does anyone know why my knock readings are suddenly a lot higher than normal.The only thing i can think of is the cold weather (-2 at present).Im from the UK and im using 99 oct fuel,the mods i have are power fc on stock map,downpipe,midpipe,catback,ind kit,1-1 fpr,fmic and ebs4 boost controller set up to 14psi and 2 extra secondary inj.Also what sort of power should i expect with these mods at the flywheel.Thanks in advance Roy.

 

I believe the temp corrections on the PFC are not as accurate as they should be. You are also pushing a lot of mods for an untuned base map (!) You need to go to a dyno with a wideband A/F sensor and see what your A/F ratios are looking like. You might need to adjust the temp correction or add a bit more fuel in the cells you are getting knock in.

 

You had better get over into the PFC forum immediately before you pop that engine. Especially running the stock map @ 14psi with your mods.

https://www.rx7club.com/forum/forumd...?s=&forumid=47