Yes I posted the factory knock table settings before when mrfred said he kept seeing knock over 7k, saying "look at this and you will see why". I do not and will not give actual knock table setting advice.

I just think getting knock table advice from somebody that vented a block shortly after tweaking said knock tables is a bit "YMMV" to say the least.

- Bryan

 

I am not saying he should adjust them, especially on crappy 92 octane. I upped my torque significantly at the same time as adjusting the tables, trying to blame my tuner for the knock table adjustments is dumb, we examined the block and there weren't signs that it was detonating.

I was simply saying that I am sure many people are getting phantom knock or their tables are set too sensitive to make more power. I don't tune my car or pretend to know how to tune...I rarely ever give tuning advice, if it could be called advice even, more so alert people to certain conditions that could exist.

I just think its a little low to say that just because my motor blew up it was my tuners fault and HAS to be because the knock tables were adjusted and not the 33psi on the stock block and big torque spike.

 

wait wut? How and when did I blame your tuner??? I also didn't say it HAS to be because of the tables... stop putting words in my posts, or posts in my words? lol

This thread needs more beer.

Nice results Mrfred, that car must pull like a freight train.

- Bryan

 

You made two separate posts in this thread commenting on his vented block. He doesn't self-tune so I'm not sure how else he should have interpreted it.

He got greedy with the Red/E85 tune and in retrospect it's not too surprising. Most of the tunes that you've posted are only 28psi on that type of turbo (DOM, BBX).

 

On my green I also see some random knock around 7200-7600, usually 2-6 counts. I don't own dent cans and therefore can't verify if it's true knock or not. I would not be fully comfortable adjusting these really. I'm also not sure it's worth it for another 20whp....

I would like to resolve the knock in a safe manner. What would the danger be in adjusting these 10% lower, would that be enough to possibly cause damage?

 

does everything being ported really make that much a difference? Im makin 450 397 on 28psi. Your making 492 on 92 @ 26.5 PSI. I see you have rod bolts & what not but how come such a difference in my power compared to yours? congrats on the numbers!

 

Are your numbers also from VDR? No two dynos are the same and VDR isn't even a dyno.

 

This...VDR is extremely hit or miss, don't take those numbers and compare them to anything...not worth it. You are probably pretty close if not above that on VDR, personally i don't like VDR for the numbers game as its even worse than the "my dyno reads low" game, but it works as a tool or measuring a mod the same day type of thing. It's all just numbers anyway.

 

when im done i will put it on a dyno i have no doubts about the numbers they will be very close to english racings dyno and cobb tunning surgline. I have been on both and the vdr has always been nearly identical. But will admit they are fairly high reading dynos but i will take any bets that my dyno # will be within 10 whp on either dyno.

 

Well?

 

No I just realized it said VDR ill have to check it out one day see what my car comes up with on that.

 

What does your boost taper too? mine goes from 28-25 sometimes it holds 26 weather depending.

 

Interesting part about the knock tables is that there is both a background noise adder and a multiplier. At 7000+ rpm, the multiplier is reduced, but the adder is increased.

More beer indeed. Yeah, it pulls and pulls. Can see why I was interested in raising the rev limit to 8500 rpm.

VDR is written around a spreadsheet I wrote about four years ago (and still use for all my tuning), so I'm obliged to say something. Comparison to dynos has shown it to be very representative of real dyno data if used properly. As you are probably suggesting, its all about whether its used properly.

 

Boost tapers to 24.4 sorry i didnt see what you were holding. My guess its the cams and porting ?

 

do you know what timing you're hitting at peak tq and towards redline after 6k?