Hi All,
I've been having this issue for a long time. When datalogging I'm getting knock retard on my stock timing table and stock base timing/stock dissy 6 degress. Please help me figure out whats going on, i don't seem to have and false knock other wise i should be able to tell for the most part?, I have a PS pully making noise but shouldn't cause false knock. Anyway I have a datalog in DATAMASTER if someone could take look check out my logs please.


HardWare Specs
88 Vette 350 TPI/Auto/3:55Gears
Mild porting/AFPR 42PSI/AIR FOIL/Fully TUNED UP
NEW MAF/ MAF RELAYS/
I sprayed water into the Throttle body thinking I had carbon.


CHIP MODS
VAT- Disable
EGR-Disable
TCC- delay TCC
Cooling Fans-Times 198-205 ***CHANGE COOLING****
AC -Loads disable
Timing base at 6 Stock
Min PE 60%
crank muilt .25
Everything else STOCK in my chip

 

If you're running the stock timing table, that's designed to be used with the EGR. If you've eliminated the EGR, then you're running too much timing.

Try setting you max timing to no more then 32d, and see if that doesn't cure your knock.

BTW, and noise of the right frequency will trigger the knock sensor. A bad accessory devise bearing, serpentine belt, exhaust rattle can all cause a false knock.

 

Thanks Grumpy, I'll try to datalog with the EGR enabled and data log first, then go from there to see if it's my pullying causing it. Thanks man

BTW if i set my max timing to 32d isnt that gonna make my motor loose power? Would it make sence to just let the knock senor do a lot of work rather then loose power? Maybe i just don't understand enough about this setting. can i get your input please

 

Which stock table are you running? ABTS?

 

I'm using a 6E bin with the 32b table. My orginal is and 32b. Reason I switched is because i disabled the ninth injector. Even with the stock 6E table i get a little more then normal knock. only in the 3k-4-k 144-190 LV.

thanks