Engine Knock

[barnz]

hoping someone will be able to help

i have an r32 gtr that is fairly stock and a mate of mine has a similar car (r32 gtr) but he has done a lot of work on the motor with forged pistons, heads, cams, power fc, intake, turbos, cooler and bullet proof bottom end. when dynoed it made 361kw at all four on a fairly conservitive tune. MY REAL QUESTION IS does anyone know what reading the knock sensor should read on a standard rb26 as he has done a lot of work and is getting a reading of about 40 in the power fc and thats under low boost . is this a safe reading or is this some thing that he should get looked at. i understand it may be a hard question to answer but any ideas would be greatly appriciated as he is scared to drive it as he dosent want to kill it . so it just sits in his shed what a waste.

any help would be great

thanks

[R31Nismoid]

40 is acceptable if it doesnt go any higher... its not ideal... should be around the 20-30 mark... but 40 wouldnt bother me if i saw it on my H/C

[barnz]

40 is acceptable if it doesnt go any higher... its not ideal... should be around the 20-30 mark... but 40 wouldnt bother me if i saw it on my H/C

can you suggest anyone in melbourne that is awsome at tuning the power fc to get the optimum out of the car?

[ferni]

as ash said, 40 isn't bad.... normally anything under about 80 is considered acceptable. You have to remember that 80 is the peak knock and usually only happens for a split seccond, if you data-logged it you'd see it much lower.

Awesome at tuning a power FC in melbourne....... Ben @ Racepace, or you could try Nigel @ Racingline. Both in Melbs s.e suburbs.

[R31Nismoid]

Racepace - Ben

9762-9421