Does the L shift on 4 cylinders or all 8? And if it is 4, can a chip disable it? Please help......brain fried......reading too many posts....

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Black '99 #398 of 4000
SHM mass air/filter, SHM chip, Level 10 shift kit and converter.
13.71 @ 98.2 mph (stock)
13.34 @ 102 mph (chip/mass air)
Converter/shift kit to be tested soon!

 

Yes in stock configuration the L shifts on a .4 sec period on 4 cylinders by shuting off the fuel to 4 of the cylinders. Yes it can be overridden by the chip tuner. The reliability of the transmission not to mention the wear and tare on the dif and rear tires. The trans fluid on a stock L should be changed every 25000 miles or so. With the motor shifting on all 8 the range was down to about 10000 miles. This issue almost single-handedly killed the L at Ford. The 4 cylinder shift was a last ditch idea the Ford engineers came up with. P.S. I race with the head gearbox engineer that worked at SVT at the time. He did all the drivetrain durability testing for Ford.

Hope this helps.



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Andy Whittle
White 2000
#2482 of 4966
Built 4/27/00

My Autocross car

 

Now that's one hell of a post, I thought for a long time that I was dropping transmissions because of the superchip's line pressure build up. I see now that it could be from the constant 8 cylinder power shifts.

So this 4R100(sp) isn't what some think it's cracked up to be. There has to be someone in the country that can build this POS up.

 

My buddy claims the box will take "tons" of torque once in gear but the fluid will not take the hit of constant shifts. He said its the 1-2 shift that is the problem. He tried to put more clutches in but they ran out of room for production. He also said somthing about the trans pressures were "maxed out" I could ask him to clairify if you wish. He pulled a 7000lb trailer for close to a year with an early L.

Andy

 

awhittle: Thanks for the info. Do you think its worth having this feature overridden with a chip?

lgogether: check out level tens' web site. they claim their 4r100 handles 800hp and 800 ft/lbs. Its about $2500
www.Levelten.com

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Black '99 #398 of 4000
SHM mass air/filter, SHM chip, Level 10 shift kit and converter.
13.71 @ 98.2 mph (stock)
13.34 @ 102 mph (chip/mass air)
Converter/shift kit to be tested soon!

 

awhittle, StruckBy99,

You two guy are on the money tonight. If we were sitting in a bar I would be buying beers.

Awhittle I am in fact dropping transmissions(2)/rear ends between first and second. The line level pressure is something that is programmed in the aftermarket chips (so I'm told), this is why I went with a shift kit and got the line pressure programmed out.

StruckBy99, I have a shift kit comming from JDM next week. I don't know if its up to level ten or not. After loosing two of them I'm looking to have this thing rebuilt with carbon clutch plates if in fact they exists. Thanks for the hyper link BTW.

 

What are you guys running for oil/filters? Anything trick out there? Talking about the trans here.

 

Let me see if I have this right. In the 1/4 mile, the truck shifts 3 times --- 4 cylinders for 1.2 seconds in a 13.6 second run??? What would it do running on all 8 cylinders for the entire run???

 

Acording to JDM about 12.9 at 104 if you can get traction. I would guess 1/2 from timing/mixture and 1/2 from the shifts. Remember that the HP gains have nothing to do with the shifts. You realy only have two shifts 1->2 and 2->3 for .8 sec at about 40%power. Don't forget that the four cyminders are not only not making power, they are also being drug along at 5200 rpm. IMHO/none of this is documented, I just read and listen alot.

Hope this helps

Andy

 

Yea I have the trick Hughes transmission pan from day 2, 4 extra quarts, mini rad on the bottom, drain plug, and a 4 x 4 4" x 4" filter. It cost me about $300, but I'm still looking for a huge oil cooler.

sorry I can't upload pics right now, thanks AT&T

 

This is indeed an alarming post. Do you suppose that this is the reason that my tranny is hanging up on the 1-2 shift now? We supposed it was just a bad solenoid. I thought the fuel cut off only occurred on the 1-2 shift, does it happen on the 2-3, too? By taking out this pause with a chip, what kind of damage is likely to occur? What would the symptoms be? And when the tranny is repaired, would reburning the chip to re-introduce the pause prevent damage from happening again?

Sleepless in Ventura.

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I'd rather have a bottle in front of me than a frontal lobotomy.

'84 Alan Record Carbonio, Aerospoke wheels, Campy brakes.

'00 SVT Lightning, silver, built 2/9/00, #133 of 4966, G-tech Pro, JBA headers, 4.10 gears, Swanson chip, Pro-M, NGK plugs, carbon drive shaft, Roadmaster suspension kit, TransGo shift kit,
13.39 @ 102.5

2001 Kevlacat 2400, twin 115 Evinrude FICHT, Raytheon VHF, radar, autopilot and GPS chartplotter/fishfinder.
http://www.zing.com/album/?id=429389...4647875&idx=15

gmvye@pacbell.net

 

alphadoggy,

My first chip didn't have the 8 cylinder cut out, just the same as stock.

My first production chip was a R9 and my transmission didn't last 1000 miles. I thought it was a line pressure build up to help engage the gears that caused my problems?

I would say at this point; this is just a fact-finding mission and I for one am not making any suggestions.