I thought I was clear in my 3rd post .

1st run = 91 Oct tuned map (was pinging like a MF)
2nd, 5th, & 6th runs = Stock (b/c of the pinging)
3rd & 4th runs = Stock map, with ETC programming + 7000 rpm redline

 

Hey what's up Matt. This is Francis with the Black G35. I dynoed on sat at AZ dyno chip also. Actually, I had them overlay one of my runs with your best run (the last pic I posted). Your car ran pretty strong man. Most 5AT's I have seen with your mods struggle to break into the 230's. Also you dynoed only 4whp lower than what the modded 6MT revup dynoed that day. I'd get either a reflash (make sure you are using good gas if you do this) or a UTEC tune b/c you are running pretty lean. I'm pretty sure with a reflash, headers, and testpipes you can easily break into the high 250's- low 260's.

 

Good to see you are getting great results also.

 

Oh hey Francis! So if you decide to go back and dyno your car Friday, you should let me know what time you are going to do it! I was way bummed out I wasn't there when you did your car Saturday! I would like to get a 5/16 spacer and some better gas and go back, but I will have to wait until after Thanksgiving.

Also, my engine was pinging while we were dynoing my car, what's a solution to that? And is it bad if I use a 5/16 spacer with a ported manifold?

 

Pinging = Too much timing and/or too lean.

 

Thanks Gothchick, I am running really lean. Sounds like time for UTEC I guess.

 

OK I think I get it...

So your "run 1" is the VERY faint curve . It looks a little rich (I see the faint color around 12 something AFR) , so if it was pinging, that means there was way too much timing.

Your other curves are all basically the same.

UpRev needs to correct the AFR to a more optimal one and probably pull timing back out of that 91 octane tune.

Definitely check the power on your 91 octane tune again once you fill up with the 100 oct.

You have power to be made, but your tune is not quite there yet.

The gas could definitely be bad as well. what brand of gas are you buying?

 

Yep that basically sums it up. I filled up with chevron 91 oct at the time

 

I'm going back on friday. I'll get there between 11:30 & 12pm.


As for the pinging, a bandaid would be to run some race gas but since you are running pretty lean I'd go for either a UTEC tune or a reflash (quality bas is a must with this). If you are thinking about a ported manifold I'd go for a 5/16 spacer & a MREV2.

 

He's running an Osiris reflash so I doubt he'll want to pick up a UTEC

 

I'm a second car that was there that day, I don't have either. But we are thinking I need a reflash or UTEC. Frostydc4 has the osiris reflash(I'm jealous).
I just have exhaust, short ram intake, UR Pulley set, grounding kit, oil cooler, and a port and polished manifold.

 

That polished manifold on the car is ported. So I was wondering if I it would hurt me to have both my ported manifold and then go out and buy a spacer?

 

It wouldnt hurt but it might make you run even more lean

 

Very true. How much does a reflash cost about, because UTEC is way expensive?

 

The osiris flash is $700 but it allows the option to have 5 different maps. The technosquare reflash costs slightly less but you have only one performance map (and if you dont use good gas you wont see the benefit IMO) and there will be some downtime since you have to remove the ECU and ship it out.

 

Thanks, did you happen to make it there yesterday?

 

OP, your car falls on it face just like every other VQ35DE does around redline, not because your motor "pulling timing".

 

Yep. My peak hp did not improve as much as I was expecting (only a 5whp difference) but my midrange has improved (13-17 whp in some areas). I'll post the results when I get on my laptop later tonight.

 

Actually, when I first ran the tuned map it was pinging so bad that I lost 8whp near redline. On my car the knock sensor monitors knock in open loop from 0-6k. If the detonation gets really bad the closed loop knock control will pull timing after 6k and whp will decrease. This is exactly what I saw when I first ran my tuned map (I verified this with cipher also).

 

I filled up with 94 oct and went to the dyno to see if I could get better results. I first ran the stock map to get a baseline. The stock map put out 245whp/220tq. I then ran my next runs on the tuned map.

My first run on the tuned map I got 248whp/227tq




My last run on the tuned map I got 250whp/227tq




This doesnt tell half of the story. I picked up more midrange (between 10-16whp in some places) and the powerband looks a little less peaky.


Here are the video's
Ist run:http://www.youtube.com/watch?v=kp3IX-h7n34
2nd run:http://www.youtube.com/watch?v=cyUK5knIPQ8
3rd run:http://www.youtube.com/watch?v=6plklZZrT6s