Finally found the weak link in these trucks.
I've been keeping quite about this but three weeks ago I lost drive and over drive. Took the trans. out and had Jerry open it up and found I had burnt the drive clutch packs out.
I was happy I didn't break any thing. I need to talk to him a little more to get input on why it happened. I feel between the torque convertor making things hotter, the chip not locking up the convertor cluth properly, the massive traction with the BABolt-on wheel/tire set up, and the fact that I was NOSing it hard right out of the hole took it's toll and something had to give.
I figured when I started all this there would be a weak link so I wasn't too surprised.
He is getting a hold of Art Carr to get some better clutches for it.
As soon as I get some more info I'll pass it along and the part #'s for the upgrade.

Spiro and J.L.,
This will hopefully lower the E.T. a little more for Norwalk. Not to give you guys nightmares or anything. LOL


HIGH RISK

 

I know you wanted it to break, because you have been itching to build the Bionic Transmission, yes we have the technology.

Steven

P.S. My transmission is still acting up, but it is very intermittened. (Good or Bad, I don't Know)

[This message has been edited by SilverBullet (edited 08-17-2000).]

 

High Risk, I have noticed that you have been running NOS on your truck for quite a while and was wondering how well your motor has held up to the NOS? Also how much was your ET reduced with the addition of the NOS?

Thanks, HANKFAN

 

Bob,
Kevin,
Would like to get a little education on chip/converter lockup. I have been told conflicting stories and appreciate the real scoop.
I just installed the 4 qt. higher capacity trans pan, but still a little nervous since Bob had his problem.
Appreciate it.
Jim

 

which clutch pack di you fry, I'd be real interested in seenig the clutches if you save them. Just a note, on the '01s the transmission is upgraded to a mechanical diode forward (heavy) clutch which should hold up better.

GBE

------------------
'00 Lightning
Manufacturing Tech at Sharonville Transmission Plant

 

Hey Bob!
Answer your page. Oh to hell with the page got some good news just bring your wallet.


------------------
BABolt
SVT#290

 

I figured it would happen soon

Were you using OD in 1/4 mile before the 28" slicks?

Art Carr's yellow "banana" plates are good, but for you I would use the Raybestos "blue" plates. I have used the blues in many 10 sec/9sec. cars and have not seen a brunt one yet. The blues are pricey but worth the money($250-$300) for the plates.

Good Luck
Kevin

 

Steve aka Oscar Goldman,
Have you tryed changing your fluid? I,ve been told these trannys are more sensitive to over heated or broke down fluid due to the solenoids. This is just what I have been told you might have more insight to this then me. I flushed mine out this spring and the strange shifting stopped.

Hankfan,
I've ran at least 30 ten pound bottles through my motor a 100 hp at a time a 1/4 mile at a time. With 19,000 miles on the motor I have seen no oil loss or any problems at all until the trans. On the same day same weather conditions it would run 12.80's no bottle 12.10's on the bottle on an average. It has gone faster both ways but that was usually where it was.

Jigawatt,
Jerry from Inject Tech is doing the trans for me. I talked to him briefly on the phone after he opened it up. I need to call him today after he talks to Art Carr. I will ask about the blue plates. Thanks for the suggestion. Jerry is a very smart guy and I trust his word. I went slower letting it go into overdrive so I always shut it off.

Reality 1,
From what I understand after talking to Jerry and Level 10 there is a clutch in the torque convertor that the computer can lock up so there is no slip like a clutchless convertor (stall convertor) when you are below the flash (lock up rpm in a coventional stall convertor). I think what the problem was that I was slipping the convertor driving around on the street unless I was above 3800 rpm. This caused excessive heat build up in the trans. And helped the clutches to wear. The computer can tell the clutch to lock up after launch and give you a direct couple after you shift out of first gear. I'm going to do this and post the results. This is all regergitated information and some points may be inaccurate but this is how I understood it.

Factory Tech,
I will get the specifics from Jerry when I talk to him today. I will also get the plates and have Mike post some pictures.

BABolt,
I tryed calling tonight before I came in it was a couple hours after you paged me. I've been tied up all night. I figured FME night would get rained out. I'll call tomarrow after 5 or page me from work I get up around 2 or so. Should I start pulling body bolts?


Sorry about the mega-post
HIGH RISK

 

Bob
Yes.

------------------
BABolt
SVT#290

 

Hey Guys,
Been away for some time, I have been working 16 hour days with the new restaurant, looks like these long days will continue until Labor day .
I hope all is well with the rebuild Bob, Its amazing that the tranny held all that abuse for so many blast down the 1/4. I know I be interested in what you find out from Art Carr.. See ya soon

------------------
Spiro-TEAM PSP
BLK. #1476

Best run to date
12.753 @107.98
Best 60` 1.84
Best m.p.h. 107.98
@ 4700 lbs.
"Empty Pockets Racing"Drag Race Team NJ-DE
Spiro99SVT@aol.com
LAUNCH HARD

 

Got the low down from Jerry this weekend.
He found I toasted the needle bearings in the over drive gears. This caused the third gear clutch plates to fail. Sorry Factory Tech I forgot the exact name of the clutch plates that failed. I will post it when I talk to him again and some pics.
He told me this was caused by a lack of lube to the needle bearings which happens when the drive shaft is spinning at a high rpm for an extended amount of time. In a nut shell too many, for too long, high speed runs down the expressway with a 4.10 gear.
I have about a 25 mile run to work every night between 10:30pm and 11:00pm on a very smooth deserted stretch of interstate. There has been several dozen times that I wind it up between 130 and 150 and just flat get it down this stretch. Now with the motor singing at 5400 rpm the drive shaft is spinning over 7700 rpm.
Jerry said he knew of this problem with the R70OD trans. (the R100's little brother). He is going to talk to a friend of his at Ford Powertrain Engineering who worked on the design of the R100 and find how to lube this needle bearing.
He said that first and second clutch plates looked like new and is going to replace all the parts with stock parts and route a lube line to the O.D. needle bearings. In his opinion this would of never happened if I wouldn't of been running the 4.10's at a high speed for such a long distance so many times.
I suppose this mod. would be necessary if you were to run the Silver State Challenge or a simular race with a gear.
I also will be limiting the high speed trips to work from now on. I need counselling for this speed addiction. Does anyone have the number for S.A. (Speedaholics Anonymous)?

HIGH RISK

 

HIGH RISK

Wow, that's good news for the overall strength of our trannies, being that it's a lubrication issue instead of HIGH horsepower NOS destructive forces. It's great to have Jerry on the problem aye! Gotta' love having this kind of talent around for R&D. FYI, I just sold my 99 Z440 Sno Pro on Ebay this weekend. I'm meeting the new owner outta' Ludington for delivery. Now......is it going to be the new 99 ZR440 Sno Pro from Canada....or a used 2000 ZR440 from a guy on this board.....or a 2001 ZR600 LE....or a 2001 ZR800 LE?????? Life poses some pretty damn hard problems sometimes. I'll take these kind of problems, anytime.
http://cgi.ebay.com/aw-cgi/eBayISAPI...item=405342188


[This message has been edited by BadBolt (edited 08-21-2000).]