WKMCD

iTrader: (2)

Going to have to agree. These heads LOVE spark lead.

edcmat-l1

iTrader: (10)

Yep.
They'd fall out if they knew how much timing I've put in some of the L92s I've tuned, right Kevin?

WKMCD

iTrader: (2)

I know my car is making almost 40 more RWHP after a few changes and 6 more degrees of timing.

Summerwolf

iTrader: (3)

13.2 @ 109.....thats my best time in my 04 goat with bolt ons.....

you'll get better with more tuning I'm sure.

ShoddyHog

iTrader: (1)

Sorry I haven't posted...been busy at work, with family, and also with another hobby of mine...

ShoddyHog

iTrader: (1)

I'll post the log of the dyno run. There was something big time wrone with th e tune is all. She'll put down better numbers.

Here's cam info.

ShoddyHog

iTrader: (1)

Here's from the receipt:

ShoddyHog

iTrader: (1)

I've been out of town the past two weekends, so I haven't had a chance to look at the results much. I finally did, and noticed a couple things...first, the AFR out of whack was a total newb tuner mistake. Looks like I used the smoothing tool on the MAF tables, and never verified those changes before the dyno.

I also noticed in the log I've posted above, that there's an anamoly that starts at 5200 RPM. WTF is that? It does not happen on street runs. I know it is not the timing charts because I have runs with the same timing tables I ran to verify the tune prior to the dyno. When I got home this weekend...I looked at the printout with all my runs from the 19th, and verified the anomaly.

Gerry

ShoddyHog

iTrader: (1)

Here's the first dyno run log, the tune used, and the config.

Gerry

WKMCD

iTrader: (2)

Looks like that's where it gets fat. Lean that thing up to 12.7 across the board and see what it does.

Kevin

Ben Diss

iTrader: (1)

Agree. It's way too rich. Even your spark tuning at WOT could be off running that rich. After you calibrate your MAF, take a look at your spark again and make sure you get absolutely no knock before you go back to the dyno.

hymey

Lean her out see how it goes, then find mean best timing on the dyno. I ran 12.4@109 mph in a 3900lb heavy weight, stock cam and L92 heads with bolt ons. I am expecting 118mph with my cam swap and other bits and pieces in cold air. It should get over 115mph not a problem with your setup or something is not right.

I ran only 24 degrees of timing on that run with 21 through the dip. any more the engine would knock. I got some advice from ed and Kevin. Going lower with DCR with a bigger cam I have ran 30 not a problem. They do infact love timing especially with bigger cams. I am unsure of your compression but if its under 11:1 it will take more then 30 degrees and still make power. Good luck

Joel

tmoneyr007

iTrader: (2)

From a previous GTO owner to a current one.

Look at Pedder's that will help eliminate some of that wheel hop.

GL