I would first like to thank the SF Bay Area Dyno Testing team for Thursday's dyno runs. Thank you Jerry and Sean(?) at Full Function. Thank you Mike, Tommy, and Tom at Gruppe-S. The guys at each place were really nice and professional throughout.

I will thank Shiv at Vishnu when I dyno there on Friday.

https://www.evolutionm.net/forums/sh...d.php?t=178048
https://www.evolutionm.net/forums/sh...d.php?t=178067

List of mods on the car
- K&N drop-in panel filter
- Blitz SBC-iD boost controller
- APS blow off valve
- Buschur turbo-back
- HKS 272/272 cams
- Fidanza cam gears set at -4i/-1.5e
- Revolver valve springs and retainers
- APR head studs
- Nisei intercooler and intercooler piping
- Helix 720cc injectors
- Perrin fuel rail
- Walbro 255 lph fuel pump
- HKS DLI-II twin power ignition
- SMC alky kit with M7 nozzle
- S-AFC II
- NGK BPR8ES gapped to 0.025"
- DynoFlash custom road tune

- Innovate LM-1 and XD-1 for monitoring

The boost controller was set to 74 (about 23 psi) and gain to 14.
S-AFC II was zeroed out.
The SMC alky kit was set to start at 18 psi and max out at 28 psi.

These settings are what Al left them at on December 17th, 2005 at the end of my custom road tune.




LM-1 screen shots:
Purple is air/fuel ratio
Black is RPM
Red is throttle position in volts
Green is knock in volts
Blue is intake air temperature in degrees Fahrenheit
Orange is boost in PSI

 

Dyno at Full Function

Dynos in 4th gear

#1 run: The dyno operator had the parking brake (e-brake) partially up by accident, so the numbers are scewed a bit. You can see the knock throughout the RPM band. We joked about the mistake. Good thing the diff disengages with the hand brake up.

 

Dyno at Gruppe-S

3rd gear runs

#1










#2

 

#3







#4
I asked Mike if it was okay to turn up the boost to 25 psi, change the SMC alky controller to start at 11 psi and max at 18 psi. The S-AFC was altered with the settings I road tuned this past Saturday.

Al had recommended against doing this when I asked him about it because he said my car was plenty fast and pulled hard. I wasn't satisfied, so the result is this.

 

#5

This was another pull to verify the hp and tq



Unfortunately, the LM-1 didn't log this pull.

 

#6

Mike decided to try and do an apples-to-apples comparison, so he asked me to return the settings (boost, S-AFC, SMC) back to what they were so he can make a couple 4th gear pulls.

 

#7

To verify the previous run.

 

I assume it's okay to post the LM-1 log files from the DynoFlash custom road tune from December 17th, 2005, but Al has not provided me the info to view them correctly (or even screenshots of the 8 pulls if he doesn't want to disclose the information).

I've asked him in threads (which he locked)

https://www.evolutionm.net/forums/sh...d.php?t=177674
https://www.evolutionm.net/forums/sh...d.php?t=178024

and I've asked him numerous times via PM. I provided screen shots of the log files to Al so he can see that the graphs do not make sense without the needed information. He even said he would provide me the information on Thursday night, but I didn't see a PM and it's Friday.



Thanks for not posting in the thread while I was creating it. You may post your comments/questions/concerns now. Thank you.

 

Its interesting to note how close the advent of knock threshold is that when the parking break is lifted during the dyno run the car starts with some significant knocking even with the alcohol


This is why i suggested the lower boost on your car

IMHO the power numbers are good for 23 psi of boost and the dyno charts are fairly consistant from shop to shop

Of course its your call to raise up the boost as you have in one pass and make more power.

I have to make recomendations based upon keeping a customer's motor in one piece over a long life span

I did not feel that your car would be happy on the 91 octane with more boost

Glad to see its making more power with more boost

 

As we have discussed at length, I was confused as to what it is that you wanted as the data was provided to you to review with your log works softwear.

Last night I emailed you the screen shot from how I set up my log works screens as well.


here is what the final log looks like as I set it up

 

Hmm,

I must be lost too. I am assuming the point of this is to praise Al's tuning as the charts from his tune all are very smooth and making 300+ whp on a Mustang Dyno (if set up like ours) on a stock turbo is something to brag about for sure.

The AFR's are rich, as they should be with the Alky on, and the boost looks pretty nice and flat.

The car made more power with more boost and some fine tuning with the AFC. That would make sense too.

David Buschur
www.buschurracing.com

 

Please note that with an increase in boost and changes to the SMC controller, knock voltage is still lower than some of the other runs.

25 psi peak with my SMC settings and S-AFC tune:
https://www.evolutionm.net/forums/at...id=82084&stc=1
Knock voltage peaks at 0.85V at 7210 RPM


First run at Gruppe-S
https://www.evolutionm.net/forums/at...id=82078&stc=1
Knock voltage spikes at
1.42V at 4710 RPM
1.32V at 6300 RPM

Second run at Gruppe-S
https://www.evolutionm.net/forums/at...id=82080&stc=1
Knock voltage spikes to
1.33V at 6270 RPM
1.13V at 6630 RPM
1.10V at 6850 RPM

Third run at Gruppe-S
https://www.evolutionm.net/forums/at...id=82082&stc=1
Knock voltage peaks at .92V at 7180 RPM

Sixth run at Gruppe-S in 4th gear
https://www.evolutionm.net/forums/at...id=82092&stc=1
Knock voltage peaks at
1.11V at 5980 RPM
0.91 at a couple other places

Seventh run at Gruppe-S in 4th gear
https://www.evolutionm.net/forums/at...id=82096&stc=1
Knock voltage spike at 1.53V at 7200 RPM


I'm not questioning your tuning skills, but why is my tweak with more boost less knock prone that yours?

 

Since not everyone is familar with the gruppe-s dyno dyno. Yes it does read low, and getting over 300 on it with the stock turbo is hard.

Here is another dyno sheet from that very same dyno for comparison.

No alky, self tuned, stock air filter. All mods in my sig.

Test run is 100 octane, base is 91 octane, no alky

 

Here are the instructions I provided you for all to see (via PM). I don't know how it's hard to follow.


Please let me know if you need me to create a tutorial for you with step-by-step screen shots so I can finally get the information. Please keep in mind that I told you I will not provide this information to anyone else, but I don't see how the scaling and voltage conversion are trade secrets.

 

I am neither bashing nor praising Al. All I'm doing is posting the findings for yesterday, and since the sessions were from independant dynos no one can claim that they are biased.

It was a cold and rainy day when Al did the custom tune, so AFR might have changed because it was warmer today.