Author Topic: Dyno tune- 10/2 @ 2- 2007 Pontiac Solstice GXP Auto- www.jotechracing.com (Read 14432 times)

Arabas · « **Reply #25 on:** October 02, 2009, 03:58:11 AM »

Well done Imaj!!!! the video will be saved in this url after live broadcasting, so as to watch later right?

Kelu · « **Reply #26 on:** October 02, 2009, 08:02:48 AM »

Thank you Imaj.

Can this be recorded? At friday night 10 pm (my time) I have club meetings so I will not be online, I will try to check it out from my mobile phone but I doubt will work good.

Thanks again Imaj for setting this up

Imaj · « **Reply #27 on:** October 02, 2009, 11:49:09 AM »

It can be recored. I will record as well. Thanks!

Kelu · « **Reply #28 on:** October 02, 2009, 12:27:31 PM »

ETA 2,5h, right? (check my post's time)
I think I will be late for my club meeting but I don't want to miss it because of the timezone.

Imaj · « **Reply #29 on:** October 02, 2009, 03:49:11 PM »

We are live!

Critterman · « **Reply #30 on:** October 02, 2009, 03:52:31 PM »

blocked here at work.

DeepBlueGXP · « **Reply #31 on:** October 02, 2009, 03:54:12 PM »

It's running now.

Imaj · « **Reply #32 on:** October 02, 2009, 04:27:28 PM »

We are running the first Vince tune now

Imaj · « **Reply #33 on:** October 02, 2009, 04:45:32 PM »

Okay...run number 2 is starting.

Imaj · « **Reply #34 on:** October 02, 2009, 04:53:35 PM »

We hit 26 psi of boost. 313 pounds of torque...221hp

Kelu · « **Reply #35 on:** October 02, 2009, 05:44:11 PM »

I was watching first 30 minutes but I had to run.

CJ Krause · « **Reply #36 on:** October 02, 2009, 10:17:36 PM »

here is the final Dyno Sheet
243.8 WHP/318.7 WTQ

http://i83.photobucket.com/albums/j313/cjkrause/CJs/kendyno.jpg

Imaj · « **Reply #37 on:** October 02, 2009, 11:48:24 PM »

Here are the recorded videos....

http://www.ustream.tv/flash/video/2268581

http://www.ustream.tv/flash/video/2268650

http://www.ustream.tv/flash/video/2268513

Enjoy!

tazz · « **Reply #38 on:** October 03, 2009, 12:16:13 AM »

So the final dyno sheet looks like it shows about 25psi is where the tune for your car does the best as far as peak#'s instead of 26psi correct?

kwtoxman · « **Reply #39 on:** October 03, 2009, 08:46:26 AM »

So it appears the auto is affecting the hp reading on the dyno?

So how much of an increase were the #'s over the baseline runs?

Watched most of it live in the background yesterday....

U4EA · « **Reply #40 on:** October 03, 2009, 09:15:51 AM »

Baseline #'s with GMPP tune, GMPP CAI, Magnaflow exhaust:
213.4(HP) @ 7300 RPM 185.5(Torque) @ 6000 RPM A/F 13.0 A/I 17.2 psi
243.8(HP) @ 4600 RPM 318.7(Torque) @ 3950 RPM A/F 12.1 A/I 24.6 psi
Final #'s
The auto is hard to dyno as it wants to drop back to 3rd at WOT. The sweet spot to prevent this was approx. 3500 RPM @ 85-90 MPH in 4th. Attempted this in Drive and in "I" but was more predictable in 4th at this RPM and speed.
Did have higher #s but also knock and too lean.
This seems to be a good spot for now.

U4EA · « **Reply #41 on:** October 03, 2009, 10:13:21 AM »

Imaj, Thanks for streaming this as it cool to see this again after the fact.

An index for those who don't want to watch the down time waiting for datalog transfers, tune transfers etc.
1st video: 1st 4 min. are baseline runs for Vince and trying to get the car to stay in 4th gear.
   The rest is down time.
2nd video: 1st 29 min. are down time @ 29 min. 1st attempt on 1st tune, 32 min. 2nd attempt
   1st tune, 35 min. 3rd attempt 1st tune, 51 min. 2nd tune, rest down time.

Gentleman Jack · « **Reply #42 on:** October 03, 2009, 01:39:56 PM »

133 ft lb increase? Are you kidding me??
And WAY lower in the power band.

What does it drive like? Have you melted your tires off already?

Kelu · « **Reply #43 on:** October 03, 2009, 02:03:30 PM »

A dyno showing 213hp as base GMPP and 243hp after the tune for me is great difference

. I presume those are wheel horses and not corrected numbers at flywheel.

I don't understand that dyno plot at all

, why are pink spots there

?

kwtoxman · « **Reply #44 on:** October 03, 2009, 10:03:25 PM »

Those are really high rpm #s in the stock measurement. Accurate?

The huge torque difference is weird too. ???

tazz · « **Reply #45 on:** October 03, 2009, 10:31:49 PM »

That's kind of why I would like to see a standard way we need to have the dyno pulls done so we can have accurate data to build upon so we can make it as equal as can be.
Kinda like my other vehicle has a 4 speed auto with OD and I have to tell the dyno operator to turn off OD and run it in Drive up to about 3100 RPM and then go WOT so it stays in 3rd the drive gear and will run in that gear till 5900 RPM. Anything lower than 3100 RPM and it will down shift to 2nd gear and throw off the #'s and the graph.

Gentleman Jack · « **Reply #46 on:** October 04, 2009, 02:24:35 AM »

Sorry if this is a newbie quesiton, but what would a dyno run look like if you just punched it in drive and let it shift thru all the gears and run out to top speed (or close)? Wouldn't that tell peak HP, peak TQ? and give real world numbers similar to SOTP test?

CJ Krause · « **Reply #47 on:** October 04, 2009, 12:14:29 PM »

it was hard for him to get solid numbers because it kept down shifting
he did a great job and he did the best he could.
i am sure if we could lock it in 4th around 2500 and full throttle we would have better numbers
it was fun

tazz · « **Reply #48 on:** October 04, 2009, 12:41:04 PM »

Just ?'s
So is there a way to lock it in 4th so it doesn't downshift ?
Or is there a better gear to pick like "I" that will allow you to lock it in 4th a little better?
Just trying to understand better so if I decide next year to do a dyno pull I can have as much info as possible for the operator and myself.

CJ Krause · « **Reply #49 on:** October 04, 2009, 01:56:01 PM »

vince is working on the auto tranny tune part and locking it
as of now no and we tried i gear

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Author Topic: Dyno tune- 10/2 @ 2- 2007 Pontiac Solstice GXP Auto- www.jotechracing.com (Read 14432 times)

CJ Krause

CJ Krause

CJ Krause