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View Full Version : Art Carr Stage II and manual 1st



2ndMDRebel
03-17-2006, 06:13 AM
Dennis, tried to get an answer on this through email yesterday. On a suggestion from a friend to get better 1/4 times, I tried doing manual shifts through 1-2-D to let it run up through the rpms before shifting but I have no manual-1st gear. When put in manual 1 or 2 its in second gear, I only get first gear when in Drive. We verified this by putting the car on a lift and making sure the shifter locks in the manual 1 detent, the shifter cable is not binding, and the lever on the side of the trans is in the manual 1 position but the gear does not engage. Is this normal for the Art Carr stage II internals and valvebody mod?
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Marauder386
03-17-2006, 07:26 AM
When I went on my test drive with Dennis, with RoadPig 1, he was watching my driving habits with OD off. I started to do the manual shift through and he explained to me that there was no need to do that...it was locked out. Remember now, I also got the Art Carr Level II at the same time as you did ...
Hope this helps, but lest wait for the Doctor to reply...


:coolman:

Marauder386
03-18-2006, 10:28 AM
Bumpity Bump for the 2ndMDRebel....

:burnout:

SergntMac
03-18-2006, 11:00 AM
This is weird...I just had a telephone exchange with MM2004 this morning about manual shifting the Marauder.

IMHO, I do not recommend manual shifting. Stock, tuned, even with Art Carr kits installed, it's very hard on the trans and could cause serious internal damage. Besides, no matter how quick you think you are, you cannot outshift the EEC. Do this wrong even just once, and you can do a lot of damage.

merc
03-18-2006, 01:41 PM
This is weird...I just had a telephone exchange with MM2004 this morning about manual shifting the Marauder.

IMHO, I do not recommend manual shifting. Stock, tuned, even with Art Carr kits installed, it's very hard on the trans and could cause serious internal damage. Besides, no matter how quick you think you are, you cannot outshift the EEC. Do this wrong even just once, and you can do a lot of damage.

Wow, Mac summed it all up.

Krytin
03-18-2006, 01:55 PM
This is weird...I just had a telephone exchange with MM2004 this morning about manual shifting the Marauder.

IMHO, I do not recommend manual shifting. Stock, tuned, even with Art Carr kits installed, it's very hard on the trans and could cause serious internal damage. Besides, no matter how quick you think you are, you cannot outshift the EEC. Do this wrong even just once, and you can do a lot of damage.
I won't argue with this advise, but mine starts out in 1rst when I manually select 1rst and will shift to second when manually shifted to second and so on. No Art Carr kit but DR/SCT tune is installed.

SergntMac
03-18-2006, 03:35 PM
Hmmm...This "no 1st gear in manual" intrigues me.

If my Chicago weather is "just right" tomorrow (Sunday, 19 Mar. 06), I'll take my #1x MM out of storage and look at this condition on my drive to work, and drive back home. I say it this way because I use two different routes that split the experience. It's a "fun" drive both ways.

I don't have any Art Carr mods on my #1x, but I do have a hand built JW tranny, the grandfather of the Art Carr-DR Stage II kit. I expect my results to be uniform with the end result of any Art Car kit.

I'll let y'all know what I learn tomorrow, expect first impressions by 0700 hrs.

SergntMac
03-19-2006, 05:45 AM
Hmmm...No news is good news? My MM shifted fine through three forward gears, O/D, and TC lockup. However, the shift linkage feels a tad loose, so, I'll be getting this looked at this week.

Rider90
03-19-2006, 07:15 AM
This is weird...I just had a telephone exchange with MM2004 this morning about manual shifting the Marauder.

IMHO, I do not recommend manual shifting. Stock, tuned, even with Art Carr kits installed, it's very hard on the trans and could cause serious internal damage. Besides, no matter how quick you think you are, you cannot outshift the EEC. Do this wrong even just once, and you can do a lot of damage.

Jerry Wroblewski says....

Will manual shifting hurt my transmission?
"Well, the answer is it depends. On any 1996 and newer 4R70W, you can do all the manual 1-2 and 2-1 shifts you want and not hurt anything. If it were older than a 1996, I'd shy away from manual 1-2's unless you've modified the main control. I would stay away from excessive manual 4-2's on all transmissions older than 1998."

http://www.tccoa.com/articles/tranny/transmission/page6.shtml

SergntMac
03-19-2006, 09:03 AM
What ever floats your boat, Jason...

Rider90
03-19-2006, 09:05 AM
What ever floats your boat, Jason...
Hey Mac, he built the thing :dunno: someone else have some substantial information to prove this wrong? I'm listening

SergntMac
03-19-2006, 11:03 AM
Hey Mac, he built the thing :dunno: someone else have some substantial information to prove this wrong? I'm listening I don't have any new information, Jason, I'm just repeating what Jerry taught me.

I know he wrote that white paper, and I know he designed and maintained the 4R70W tranny as a Ford engineer. He also worked on Ford projects at Roush. I also know that after Ford married this tranny to the Marauder with freshly overhauled EEC software, the trannys started coming apart.

Jerry rebuilt my 4R70W himself, taking all the sick parts back to Ford engineering. He later redeveloped our EEC software with MAV2 EECs and catch codes. Zack and I have spent a lot of time with Jerry, he's done no less than 50 dyno tunes on my MM alone, researching new ideas and crafting fine tunes for SCT.

For a long time, one problem that gave him a big headache, was the speed at which the InTech 4V could build power and RPM, and the electronics of the 4R70W could not keep up. Jerry said it was like a Pentium III 500 waiting on a 386SX to run a script. EEC calls for a shift and the tranny reacts s l o w l y, leaving the engine to rev up with no load, then BANG, it shifts.

This is where your second gear "scratch" comes from. It's also how con rods get bent, and stub shafts crumble. It's mostly resolved now, which is why the Art Carr kit comes with springs, accumulators, valves and so on. But, back in 2003, it wasn't pretty.

I know I'm not the smartest dude out here, but I don't make things up. Everything I posted here about manual shifting of the 4R70W, I learned from Jerry Wroblewski himself, because I didn't know it before then.

His white paper is dated when?

You think something has changed?