BadAss SRT-Z - 2.4L / A568 - Update!!!

**BadAssPerformance** · 07-30-2010, 01:57 AM

Great Lakes Mopar Festival @ Grove last Sunday

Run #1 - Right off the trailer, spun violently thry 2nd into 3rd .... but made some big end power

R/T: -.151
60': 2.044
330': 5.288
1/8ET: 7.731
1/8mph: 103.87
1000'ET: 9.766
1/4ET: 11.487
1/4mph: 131.79

Run #2 - Better burnout but still spun violently in 1 and 2

R/T: .335
60': 1.912
330': 5.081
1/8ET: 7.485
1/8mph: 105.64
1000'ET: 9.513
1/4ET: 11.220
1/4mph: 131.02

Run #3 Better burnout but still spun violently in 1 and 2 and for some reason was off the rev limiter in 3rd but not sure if it was spinning.. clutch?

R/T: -.026
60': 1.970
330': 5.193
1/8ET: 7.833
1/8mph: 96.46
1000'ET: 10.038
1/4ET: 11.914
1/4mph: 119.85

**BadAssPerformance** · 07-30-2010, 02:09 AM

Tonight at Grove's Slick night. M&H tech told me to try to rotate the slicks and burn them good a couple times, cooling between runs

Run #1 - Right off the trailer, tires flopped, good burnout, tried to hook but spun violently thru 2nd into 3rd which I missed....

R/T: .271
60': 1.789
330': 5.010
1/8ET: 8.236
1/8mph: 74.46
1000'ET: 11.388
1/4ET: 13.928
1/4mph: 97.78

Run #2 - Tires still flopped, Burnout not as good... and another miss at 3rd

R/T: .514
60': 1.802
330': 4.893
1/8ET: 7.696
1/8mph: 90.68
1000'ET: 9.901
1/4ET: 11.731
1/4mph: 123.59

Run #3 - Decided to make a 3rd run with tires backwards as there was still some tread irregularity.. Better burnout and a better 60' Finally... but AGAIN missed 3rd... and th etrans feels iffy

R/T: .282
60': 1.775
330': 5.102
1/8ET: 7.781
1/8mph: 91.01
1000'ET: 10.013
1/4ET: 11.915
1/4mph: 114.44

Run #4 - Flipped the tires back to normal. and got a good burnout, best of the night. 1 and 2 felt great, nailed 3rd but it went off the limiter, which I am positive was not tire spin, so maybe clutch or OBX or ??? I pedaled it and got it to pull again and 4th was kind ahosed too... pretty sure this was a 10 something if it was clean

R/T: .233
60': 1.768
330': 4.845
1/8ET: 7.358
1/8mph: 101.66
1000'ET: 9.425
1/4ET: 11.240
1/4mph: 121.00

**Darkapollo** · 07-30-2010, 02:10 AM

Nice times!

**BadAssPerformance** · 07-30-2010, 02:22 AM

Thanks! Wish I had a clean run on it! Hope its not hurt too bad

Here is interesting for comparisson.. on tonights run I was on the limiter in 3rd for about a second (thats a lotta time) and it wasnt accelerating during that... and 4th was crap too... so not bad for a pooched tun

Need to check data log to try to figure out WTF it was doing

Originally Posted by BadAssPerformance

R/T: .307
60': 1.693
330': 4.668
1/8ET: 7.054
1/8mph: 104/80
1000'ET: 9.109
1/4ET: 10.844
1/4mph: 130.47

Originally Posted by BadAssPerformance

R/T: .233
60': 1.768
330': 4.845
1/8ET: 7.358
1/8mph: 101.66
1000'ET: 9.425
1/4ET: 11.240
1/4mph: 121.00

**turboshad** · 07-30-2010, 12:08 PM

Looks good JT. So where are you shifting at? What was your final conclusion on the slick flip? Seemed to help?

**Reeves** · 07-30-2010, 01:08 PM

Originally Posted by turboshad

So where are you shifting at?

He's got a lever that comes up from the floor that he moves to engage the different gears.

**Darkapollo** · 07-30-2010, 01:36 PM

Originally Posted by Reeves

He's got a lever that comes up from the floor that he moves to engage the different gears.

**Directconnection** · 07-30-2010, 01:44 PM

Originally Posted by Reeves

Where's the "like" button?

Between your legs....

**Reeves** · 07-30-2010, 01:48 PM

Originally Posted by Directconnection

Between your legs....

SAWEET!!!!

Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like

**BadAssPerformance** · 07-30-2010, 04:58 PM

Originally Posted by Reeves

He's got a lever that comes up from the floor that he moves to engage the different gears.

LOL Exaaaaacty!

Originally Posted by turboshad

Looks good JT. So where are you shifting at? What was your final conclusion on the slick flip? Seemed to help?

7k-ish I gotta review that data log from the last run but it had a lotta limiter time in 3rd before I clutched it up

Will take slick pics and update the thread

**badandy** · 07-30-2010, 06:06 PM

Originally Posted by Reeves

SAWEET!!!!

Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like, Like

Funny sh*t!

J.T. your stuff makes for a good read man

**cordes** · 07-30-2010, 06:46 PM

My money for the problem with the revs going up without the wheel spin is the clutch. I think the OBX would go much more violently than that.

JT, do you think it's time to go through the trans? Do you think the bearings could be a little wonky causing the missed shifts? Wasn't it the bearings at the ends of the shafts which caused Reeves' case to break the way it did?

**BadAssPerformance** · 07-30-2010, 10:53 PM

Originally Posted by badandy

Funny sh*t!

J.T. your stuff makes for a good read man

Def funny sh*t Reeves!

LOL, glad you like Andy

Originally Posted by cordes

My money for the problem with the revs going up without the wheel spin is the clutch. I think the OBX would go much more violently than that.

JT, do you think it's time to go through the trans? Do you think the bearings could be a little wonky causing the missed shifts? Wasn't it the bearings at the ends of the shafts which caused Reeves' case to break the way it did?

Yeah, definitely gotta check the trans..............

**Shadow** · 07-31-2010, 10:53 AM

What preasure are you running in the slicks? If you go out again with no other changes, try running a couple more lbs preasure and see if your mph comes back. If it does, then your most likely getting the clutch too hot on the dig and it's giving it up in third like the Charger was doing.

That, or try the ol 2nd gear launch, that'l tell you for sure!

**BadAssPerformance** · 07-31-2010, 11:23 AM

I've run from 12 down to 9... I think the sweet spot with these tires and car is 11. The 3 runs with tires backwards were at 9-10 (per M&H) and the 4th run was at 11

The low mph on that last run was due to 3rd and 4th issues... I am having a hard time beleiving its the clutch slipping then not slipping... it is either the clutch not engaging (held up somehow from moving fully back in, maybe a result of the SRT4 plate with 568 release bearing???) or it is not seating in 3rd gear fully?

Time to take it apart....

**Shadow** · 07-31-2010, 01:23 PM

Originally Posted by BadAssPerformance

I've run from 12 down to 9... I think the sweet spot with these tires and car is 11. The 3 runs with tires backwards were at 9-10 (per M&H) and the 4th run was at 11

The low mph on that last run was due to 3rd and 4th issues... I am having a hard time beleiving its the clutch slipping then not slipping... it is either the clutch not engaging (held up somehow from moving fully back in, maybe a result of the SRT4 plate with 568 release bearing???) or it is not seating in 3rd gear fully?

Time to take it apart....

I hear ya, and knowing what clutch your running I would say your prob OK.

Just remember that on the Charger I could run 11.1 @ 136mph in the left lane with a 1.9-2.0 60' (shi$ for traction), then go down the right lane (good traction) and go 11.9 @ 123mph with a 1.8X 60' with the clutch letting go in 3rd and 4th. I repeated this for an entire day, then went out the next day and the car still trapped 136mph in the left lane!