isthatahemi

Felt like wheel hop, excessive rear wheel spin…only in 1st, and into 2nd though, economy tuned ecoboost overpowers the t-case clutch in my mildly tuned work lariat with a WOT launch.

diambo4life

I only felt nasty wheel hop during my 10.80 pass at the track. Otherwise, I can't say I have felt anything peculiar. Most of those street runs were done with traction control enabled so not sure how that played into it.

engineermike

How do you address tcase slip?

diambo4life

I am pretty sure he swapped in a Raptor tcase for his truck.

isthatahemi

Yep - I swapped in a Raptor case into a few trucks now. I ran my best time at the track in 4A with my supercharged truck (Raptor case swapped), it calmed down the hobby-horsing....not great for the clutch I'm sure.

I am experimenting with my (other) truck, the tuned eco work truck, to see what happens over time running a tune and Lariat case, it slips occasionally when pushed, but I'm over 50k miles tuned and being mean to it, so it doesn't seem to be a huge durability issue, yet.

nxs450

I don't remember what your gear ratio is, and if your running open rear diff or other?

diambo4life

Stock 3.31s. Open diff still.

diambo4life

I did go deeper into the 10s....a couple days ago believe it or not. 10.29@134. No changes just applying my acquired knowledge to get it to move. This was with a commute 1 hour each way to the track and back home. Been daily driving the truck for about 3 weeks so its street status is unquestionable. 18MPG on the drive to the track. Logs were clean. I don't think it will be back to the track again this spring. I would like to rebuild the trans first and get an LSD in the rear.

diambo4life

Truck threw a P0430 code on my way home last night in the storms. So, will be going catless in the next few months. I may stop at the dealership for them to warranty it out but I don't like leaving my truck there for days on end. Thoughts?

engineermike

Are you running the Whipple os?