More scanner fun. Any in depth analyzing would be appreciated. It did let me get my highest trap of 100.89mph so something must be decent in it.

I can't wait to get these things tuned properly.

Edit: Image resized thanks to hungsteR.


[Modified by ActiveAero, 7:48 PM 2/3/2003]

 

Whoa thats a big pic. If anyone knows how to scale it down a little I would appreciate it.

 

Nice lookin graph, i can see that your torque and hp hits its peak very early, even earlier than stock....which is wicked for low-mid range, but not good for high rpms power, your hp peaks at 7600, your basically dropping power from there to 8500 rpms when you drag so thats slowing you down ALOT...but if your in it for the mid range its fine


[Modified by 2001TypeR, 7:10 AM 2/4/2003]

 

What were your mods before your cams? You are referring to Skunk2 stage one cams right? Just wondering, because your sig says you ran a 13.7 on stock cams.

 

What were your mods before the cams? You are referring to Skunk2 stage one cams, right? I'm just wondering, because your sig says you ran a 13.7 on stock cams.

 

AEM CAI, JDM DC header, no PS belt, stock weight, stock exhaust, street tires.

< feels like he has to explain this to often.

 

just put it in your sig. i know you can get more from your cams. i have seen some impressive dyno graphs with those. what Ecu are you running.

 

Stock 01 ECU.

 

is that corrected?

 

Yes

 

I would think it would make more, my GSR made 157.4/118.x with DC 4 into 1, Apexi WS, ACT hdss clutch, and Fidanza flywheel, otherwise bone stock with 116,xxx miles.

edit: uncorrected on mine was 166/122


[Modified by Naya the Dingo, 12:00 AM 2/4/2003]

 

thats low TQ

 

you may have to lower your VTEC x-over a little to avoid that sudden surge in HP/TQ at 5700.

i may be wrong though so don't quote me.

 

is the blunting effect after 7000 rpm due to the operator lifting off and letting the rollers run or are you getting mild valve float? what valvesprings and injectors/FP are you running?

do you have the air fuel ratios in the last 1500 rpm?

 

Strange, that graph looks almost exactly like my graph with stock cams and i/h/c/e.

 

looks like a typical itr dyno with stock ecu - don't know if such long intake helps at top end

you could bump midrange by lowering vtec to 5100-5300. Average 5-10hp gains across the powerband from tuning stock cams.. So I'd expect better results with stage 1 cams. Maybe extend peak hp with cam gears.


[Modified by vtec.dc2, 3:28 AM 2/4/2003]

 

"Maybe extend peak hp with cam gears"

Exactly....

 

Stock exhaust mmm, I never tuned my cams with the stock exhaust but I wonder if that's what is hurting you. Try an open header dyno session and see.

 

whats with the spike around 4K?

 

Probably the AEM hump.

 

AEM CAI

 

how did you guys determine that?

 

The power hump around 4k/4.5k is just a known "effect" of the AEM CAI on a C5.

 

The hump that is centered at 4,500rpm is very indicative of an AEM CAI, almost every vehicle that I have seen that has an AEM CAI has this hump...which is why everyone says that he has an AEM CAI.

Austin

 

What is a "blunting effect"? I'm using the stock ITR valve springs which are supposed to be fine with the stage ones. Stock injectors and fuel system.