Rock Falls Raceway, 6/3/2017

[hawkeye93]

Rock Falls Raceway, Eau Claire, WI
June 3, 2017

• Runs 1-3 were on 92 pump gas (~1 gal left in tank when I arrived)
• Runs 4-7 were on 100 octane Sunoco 260 GT
• Runs 8-10 were on E30 blend (100 octane + pump E85)
• Full weight, including car seat
• All runs were in Sport mode with AdvanceTrac off, except run 10 in Drive
• Launched at 2K
• Firestone Firehawk GTs @ 28 psi, spun on launch & 1-2 shift
• Over the course of the day, DA ranged from 2694 ft to 3347 ft

(Click links for timeslips)

Run 1: Unleashed 91 meth tune
12.554 ET 109.34 mph

Run 2: LMS 91 meth tune
12.933 ET 106.34 mph

Run 3: AJP 92 tune, meth off
13.427 ET 100.62 mph

Run 4: BCB 93 tune, meth on (but not tuned for meth)
12.658 ET 108.62 mph

Run 5: BCB 93 tune, meth on (but not tuned for meth)
12.683 ET 108.90 mph

Run 6: LMS 93 meth tune
12.667 ET 109.21 mph

Run 7: Unleashed 93, meth off
13.023 ET 105.68 mph

Run 8: BCB E30 w/meth
13.042 ET 107.11 mph

Run 9: BCB E30 w/meth
12.914 ET 107.52 mph

Run 10: BCB E30 w/meth
12.947 ET 107.49 mph

[StealBlueSho]

Did you give time for OAR to set? I'm guessing no... that will have a direct influence on ET..

None the less, great post!!! Thanks for the information!!

[StealBlueSho]

And do you have a dead man switch for the meth?

[hawkeye93]

I had been running the Unleashed 91 meth tune for a while, including my trip to the track.  But for the other tunes, it was pretty much tune & go.  I didn't even let the car cool as much as I should have.

No failsafe on the meth, pretty much your standard install, except for the the tank & pump location in the trunk.  I did fill my 3 gal meth tank before I left, so there was no danger of running out of meth, aside from a pump failure.  Using 100% Sunoco RM-99 methanol.

[StealBlueSho]

I guess my question was phrased wrong. Lol...

When you turn the meth off, is it a simple switch? On the Alky kit, I have turn the gain to off, which means if I want to run it, I need to dial it in again...

[hawkeye93]

I have the same Alky controller.  I turn the gain off to turn off the meth.  I have it set at 6 when I run with meth.  I suppose it would be simple enough to wire in a switch to the controller (or remove my fuse tap or relay), but I haven't done that.

[TopherSho]

Rock Falls Raceway, Eau Claire, WI
June 3, 2017

• Runs 1-3 were on 92 pump gas (~1 gal left in tank when I arrived)
• Runs 4-7 were on 100 octane Sunoco 260 GT
• Runs 8-10 were on E30 blend (100 octane + pump E85)
• Full weight, including car seat
• All runs were in Sport mode with AdvanceTrac off, except run 10 in Drive
• Launched at 2K
• Firestone Firehawk GTs @ 28 psi, spun on launch & 1-2 shift
• Over the course of the day, DA ranged from 2694 ft to 3347 ft

(Click links for timeslips)

Run 1: Unleashed 91 meth tune
12.554 ET 109.34 mph

Run 2: LMS 91 meth tune
12.933 ET 106.34 mph

Run 3: AJP 92 tune, meth off
13.427 ET 100.62 mph

Run 4: BCB 93 tune, meth on (but not tuned for meth)
12.658 ET 108.62 mph

Run 5: BCB 93 tune, meth on (but not tuned for meth)
12.683 ET 108.90 mph

Run 6: LMS 93 meth tune
12.667 ET 109.21 mph

Run 7: Unleashed 93, meth off
13.023 ET 105.68 mph

Run 8: BCB E30 w/meth
13.042 ET 107.11 mph

Run 9: BCB E30 w/meth
12.914 ET 107.52 mph

Run 10: BCB E30 w/meth
12.947 ET 107.49 mph

How were you re-populating the OAR values between tunes?   When I switched tuned at the track it never fully reset until half way home on a 2 hour drive.

[StealBlueSho]

Trick to get OAR to max out quick....

Monitor knock and OAR on your SCT device...

Get into a cruising gear....

Give part throttle and watch your knock sensor.. keep the accelerator pedal steady until the knock sensor reads -4.00 for a few seconds..

Let up off the gas pedal...

OAR should start to go negative..

Rinse and repeat until you get to -.96 on the OAR.

[hawkeye93]

How were you re-populating the OAR values between tunes?   When I switched tuned at the track it never fully reset until half way home on a 2 hour drive.

Simple answer: I didn't.  All of my logs show an OAR of -0.96.  Each time I changed fuel, I added octane, so octane-induced knock shouldn't have been an issue.  In the future, I expect I'll just run one tune at the track.

Though now that you mention it, that could have something to do with the AJP result in run 3.  I did hit 3.75 degrees knock on that run.  Since I had previously been running with meth, then suddenly turned it off, I wonder if the ECU was expecting more octane, so it might have been too advanced for the fuel it was getting.  I did not reset the KAM between tunes.

[FoMoCoSHO]

Trick to get OAR to max out quick....

Monitor knock and OAR on your SCT device...

Get into a cruising gear....

Give part throttle and watch your knock sensor.. keep the accelerator pedal steady until the knock sensor reads -4.00 for a few seconds..

Let up off the gas pedal...

OAR should start to go negative..

Rinse and repeat until you get to -.96 on the OAR.

OAR doesn't reset on 2013+

[StealBlueSho]

Trick to get OAR to max out quick....

Monitor knock and OAR on your SCT device...

Get into a cruising gear....

Give part throttle and watch your knock sensor.. keep the accelerator pedal steady until the knock sensor reads -4.00 for a few seconds..

Let up off the gas pedal...

OAR should start to go negative..

Rinse and repeat until you get to -.96 on the OAR.

OAR doesn't reset on 2013+

I was responding to TropherSHO...

You are correct... lol... wish mine didn't reset...