Extreme wheel hop or something wrong

W

Wojomojo

New member
So with my newly found addiction known as meth.... Methanol injection of course ;) I'm experiencing some new issues. Once in a while I'm getting some crazy shaking on the 1-2 shift. I'm assuming it's just some really bad wheel hop, but figured I'd check with you guys and get your opinions. Check the video out. Getting bad wheel spin at the top of 1st then going into the shift. I had Torrie tune back the pressure for the 1-2 shift but I should probably have it tame it back just a little more still.

https://vimeo.com/126141199
 
I'm assuming you just re-tuned your car? I had the same thing when I installed the Livernois tune. Its the adaptive torque management software relearning the car. It will be like that for a while. My suggestion is to take it easy on the car for one tank of gas then light it up. It's a VERY harsh shift and I fear it can eventually lead to PDU or transmission issues if we don't ease our way into the tunes.
 
Per Livernois: "When you first flash the 2010 and newer vehicles they shift harder than normal. They have adaptive learning and will soften up, but still be firmer than stock as it learns how you drive. "
 
Looks like it's trying to shift to 1st gear too early? Or is that caused by the rpm's shooting up when spin occurs?

Rich

 
Under WOT mine doesn't shift to 2nd until about 40...looks like yours is trying to shift earlier or the high request for power right there is causing the spin and thus the shift because rpm's go up? Just thinking out loud...

Rich

 
I've has this tune on for a couple weeks and 4+ tanks of gas. It should have already learned it.

Yeah I was gonna send the video to Torrie and see what he thinks. Maybe he can work some magic to help prevent this from happening. It does make sense though that the wheel spin is putting the rpm at the shift point and causing all sorts of commotion in the drive train.
 
Wojomojo said:
I've has this tune on for a couple weeks and 4+ tanks of gas. It should have already learned it.

Yeah I was gonna send the video to Torrie and see what he thinks. Maybe he can work some magic to help prevent this from happening. It does make sense though that the wheel spin is putting the rpm at the shift point and causing all sorts of commotion in the drive train.
Click to expand...

Are you running WOT with traction control on?
 
14SHOCAR said:
Per Livernois: "When you first flash the 2010 and newer vehicles they shift harder than normal. They have adaptive learning and will soften up, but still be firmer than stock as it learns how you drive. "
Click to expand...

They shift harder than normal after a reflash because they need to tune the tables better plain and simple...they must not have tuned the pressures for part throttle....you can set up the tables to shift how you want it the first time and not have to wait for the adaptives...if the tables are tuned correctly then there is nothing to adapt to.

And whoever ur tuner is ask them for no more than 180-200 psi pressure for the 1-2 shift at wot...the higher gears can tolerate more pressure for some reason.

It is not wheel hop although it may sound and feel like it....
 
Normally this is only experienced when the TCS, RSC and SCS are all activated. The ECU is sensing wheel slip and is intermittently taking control, resulting in "wheel hop". The Ford trans in this platform 100% does adaptive learn, to suggest anything otherwise is not true. I can attest to that 1st person, my car shifted much differently post tuning. My car even feels different after I let my girl drive my car for a few days in a row. Her driving style is MUCH different than mine. She is the driver that races to the speed limit, and then lets off. That is not me.
 
I'd get that shift pressure lowered a bit...the transmissions only adapt if they are allowed to...to suggest anything else would be not true
 
I had the TCS off. It's a non-pp car and turning it off still doesn't completely turn it off. I had the pressure lowered, but I guess I can get it lowered even more. As long as it's really warm outside it doesn't seem to be an issue.
 
Ask to have the pressure for the 1-2 wot shift set anywhere between 180-200 and see if it still does it....mine stopped the shuddering with and without traction control on....that's why I don't buy the reason that's it's caused by the traction control or advance trac intervening and reducing torque ....my traction light will flicker but I don't get the shudder or skipping when traction control is left on...I think some tuners are raising the shift pressures to make the shifts nice and quick and firm but don't have the opportunity to test as much as we do since we live with our cars...and for whatever reason 1-2 shift is not as tolerant of high pressures as the other shifts....my 1-2 is 200 psi and my 3-4 is 230psi
 
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