1/4 Mile Times - Pre and Post Tune

[butts182]

Took my ‘17 SCAB out to the drag strip (South FL) last night and made 6 runs. The first 3 runs were stock tune and the last 3 runs were with MPT 93 PR-X. All runs were made in Sport Mode, 4A, traction control off and brake boosted. Air temps for the first 4 runs were 80, 78 for the 5th run and 74 for the last run. Runs 1-3 were all consecutive without letting anything cool off at all or even turning truck off. The last 2 runs everything cooled off due to times between runs (more people showed up). ONLY mod is SP 542 plugs gapped at 30.

Run 1 (stock tune):
60’ - 2.196
ET - 14.637 @ 90.97

Run 2 (stock tune):
60’ - 2.124
ET - 14.465 @ 92.92

Run 3 (stock tune):
60’ - 2.092
ET - 14.358 @ 93.33

Run 4 (MPT 93 PR-X):
60’ - 2.009
ET - 13.967 @ 94.23

Run 5 (MPT 93 PR- X):
60’ - 2.088
ET - 13.999 @ 96.39

Run 6 (MPT 93 PR-X):
60’ - 1.986
ET - 13.781 @ 96.39

 

[reaper1441]

Picking up 5mph is pretty huge. Nice to see the truck does a sub 2 60 foot. Looks like bigger turbos will be needed for 12s. Pretty cool on bfgs.

 

[MeFryRice]

Picking up 5mph is pretty huge. Nice to see the truck does a sub 2 60 foot. Looks like bigger turbos will be needed for 12s. Pretty cool on bfgs.

I think this truck can get into the 12's without having to add larger turbos, obviously this will help but I think with the basic bolt-on's, adjustment of the tire pressures and maybe the addition of **** will help get us into the 12's.

 

[Micha]

I think this truck can get into the 12's without having to add larger turbos, obviously this will help but I think with the basic bolt-on's, adjustment of the tire pressures and maybe the addition of **** will help get us into the 12's.

I ran a 13.08@102 MPH on a corn tune with the only modification being turbo outlet adapters. If the headwind wasn't 12mph I would have ran in the 12's.

 

[reaper1441]

I ran a 13.08@102 MPH on a corn tune with the only modification being turbo outlet adapters. If the headwind wasn't 12mph I would have ran in the 12's.

I love me some corn. Too bad this whole community is scared of it. This is literally the only vehicle ive owned in the last decade not on corn right now.

 

[Micha]

I love me some corn. Too bad this whole community is scared of it. This is literally the only vehicle ive owned in the last decade not on corn right now.

I am on e48. I need to get back on it. I will go to the strip Tuesday to see what I can do. I will post results afterwards.

 

[reaper1441]

I am on e48. I need to get back on it. I will go to the strip Tuesday to see what I can do. I will post results afterwards.

are you running an Ethanol Content Analyzer? I just moved to a place where there is no ethanol and I'm about to start filling barrels again and transporting them to where i ive to get E85 again. My racecar gains 200hp just going from 93 to E85.

 

[Micha]

are you running an Ethanol Content Analyzer? I just moved to a place where there is no ethanol and I'm about to start filling barrels again and transporting them to where i ive to get E85 again. My racecar gains 200hp just going from 93 to E85.

I will eventually. Right now I wing it. My tune isn't on the border of crazy either. And with enough corn, you can have leeway one way or the other. I just have a glass tube tester I use occasionally. And the stations around me are very consistently right at or slightly above e85. Some are closer to 90.

 

[reaper1441]

I will eventually. Right now I wing it. My tune isn't on the border of crazy either. And with enough corn, you can have leeway one way or the other. I just have a glass tube tester I use occasionally. And the stations around me are very consistently right at or slightly above e85. Some are closer to 90.

an ex coworker is a ecm calibrator and just bough a raptor. through a couple gallons of e85 in it to **** around and it added a bunch of timing on its own before he even tuned it.

 

[gijosh28]

Took my ‘17 SCAB out to the drag strip (South FL) last night and made 6 runs. The first 3 runs were stock tune and the last 3 runs were with MPT 93 PR-X. All runs were made in Sport Mode, 4A, traction control off and brake boosted. Air temps for the first 4 runs were 80, 78 for the 5th run and 74 for the last run. Runs 1-3 were all consecutive without letting anything cool off at all or even turning truck off. The last 2 runs everything cooled off due to times between runs (more people showed up). ONLY mod is SP 542 plugs gapped at 30.

Run 1 (stock tune):
60’ - 2.196
ET - 14.637 @ 90.97

Run 2 (stock tune):
60’ - 2.124
ET - 14.465 @ 92.92

Run 3 (stock tune):
60’ - 2.092
ET - 14.358 @ 93.33

Run 4 (MPT 93 PR-X):
60’ - 2.009
ET - 13.967 @ 94.23

Run 5 (MPT 93 PR- X):
60’ - 2.088
ET - 13.999 @ 96.39

Run 6 (MPT 93 PR-X):
60’ - 1.986
ET - 13.781 @ 96.39

What RPM are you leaving at? Thanks for posting your data and doing the stock tune runs first. Did you datalog? Any idea what boost level you're leaving at?