Nobody is going to be able to answer your question since not very many(if any) people are running a setup as yours.

But are you having knock under WOT or cruising speeds??

 

Nobody is going to be able to answer your question since not very many(if any) people are running a setup as yours.

But are you having knock under WOT or cruising speeds??

cruising speeds and like 1-4 knocks at WOT and I have ignition timing down to like 6 on the 16+ boost column

 

I really don't know what to say, except keep pulling -2 degrees where you're knocking unitl it's gone. Or go to a tuner who can mess with cam angles and ignition more.

 

I really don't know what to say, except keep pulling -2 degrees where you're knocking unitl it's gone. Or go to a tuner who can mess with cam angles and ignition more.

yah sucks, cause the knock sensor is so damn sensitive and my open dumppipe is so loud it would really hard to actually h ear audible knock!

 

yah sucks, cause the knock sensor is so damn sensitive and my open dumppipe is so loud it would really hard to actually h ear audible knock!

With more third party cams coming on the market, we're seeing more knock that may not actually be knock. Some knock sensor systems have elaborate signal processing that can differentiate between actual knock and other noise. Ours doesn't seem to be among them. Some people have tried to take out more and more ignition and yet the knock persisted. Taking out too much ignition is NOT a good idea as that will put your exhaust valves and exhaust at risk. I've actually seen ignition set to after TDC. Not good.

The best way to identify actual knock and knock cause by other noise is to methodically run datalogs. First use the calibration you started with and do two runs, one 2500 to redline in third, and one WOT 2500 to about 3500 in fifth or sixth. Check for knock. Then start reducing ignition in the areas with knock and repeat the runs. At some point you may see unusual patterns that point to "fake" knock.

 

I personally wouldnt run 17psi on pump gas, but that's just me. What do I know anyway. Anytime you have to reduce your timing to 6 degrees you arent doing your valves any favors by retarding it that much. (see Conrad's statement)

Put some 114 in there and put some more timing back in the car. I would say safely you can run 12psi on pump gas w/o having to sacrifice that drastic of timing.

 

I personally wouldnt run 17psi on pump gas, but that's just me. What do I know anyway. Anytime you have to reduce your timing to 6 degrees you arent doing your valves any favors by retarding it that much. (see Conrad's statement)

Put some 114 in there and put some more timing back in the car. I would say safely you can run 12psi on pump gas w/o having to sacrifice that drastic of timing.

mmmmmmmmm what about on 100 octane? I want to at least run 15lbs but I dont know what timing is too low or too high really, are the base maps for 10lbs good timing for maybe 15lbs?

 

mmmmmmmmm what about on 100 octane? I want to at least run 15lbs but I dont know what timing is too low or too high really, are the base maps for 10lbs good timing for maybe 15lbs?

This is really where a tuner and a dyno would come into play. If the basemap was tuned for 10psi, then you could load it, run 10psi and make changes accordingly. It was not designed for 15psi.

You honestly are going to need some quite intensive tuning in order to run the amount of boost you want. There isnt the possibility of just loading up someone else's kal and going at it.

100 octane does pretty well, but I prefer 114.

Giving you a guess on total timing for 10, 15, 20psi is difficult, this would need to be done at interval levels on the dyno to get an accurate result.

 

This is really where a tuner and a dyno would come into play. If the basemap was tuned for 10psi, then you could load it, run 10psi and make changes accordingly. It was not designed for 15psi.

You honestly are going to need some quite intensive tuning in order to run the amount of boost you want. There isnt the possibility of just loading up someone else's kal and going at it.

100 octane does pretty well, but I prefer 114.

Giving you a guess on total timing for 10, 15, 20psi is difficult, this would need to be done at interval levels on the dyno to get an accurate result.

yah I understand, blah!!! luckily getting tuned in a couple of weeks for max pump and race gas too so should be ok.

do you know how much timing should be taken when spraying nitrous like say a 50shot?

 

This is really where a tuner and a dyno would come into play. If the basemap was tuned for 10psi, then you could load it, run 10psi and make changes accordingly. It was not designed for 15psi...

I would also suggest to take a good look at the intercooler. For such high boost, intercooler size and efficiency become ever more important.

 

I would also suggest to take a good look at the intercooler. For such high boost, intercooler size and efficiency become ever more important.

I have a precision 600whp rated IC 31inches wide 8inch tall and 3.5 inches deep

 

I would also suggest to take a good look at the intercooler. For such high boost, intercooler size and efficiency become ever more important.

I agree 100%. IC efficiency does become important at those boost levels.

I would also be concerned with cylinder pressure and injector duty cycle.

BTW, this is all on a sleeved block with forged internals, correct?

 

I agree 100%. IC efficiency does become important at those boost levels.

I would also be concerned with cylinder pressure and injector duty cycle.

BTW, this is all on a sleeved block with forged internals, correct?

built motor yes.

1000cc injectors precision with resistor box, custom return line and upgraded feed line 3/8inch stainless steel braided, walbro 255lph pump with aeromotive FPR with bypassed intank fpr

 

I wish I had a working IC or Aftercooler

 

I personally wouldnt run 17psi on pump gas, but that's just me. What do I know anyway. Anytime you have to reduce your timing to 6 degrees you arent doing your valves any favors by retarding it that much. (see Conrad's statement)

:iamwiths:

I'm suprised the car even goes up in revs with 6 deg of timing.