I installed the JL diablo chip last week. I love the way the truck runs now, but it shifts really hard even at low rpms when you are just tootling around. Is this the way all of them are or do I need a chip reburn?

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'01 Lightning, JL Ram Air, JL Diablo Chip, Dynomax Muffler
'77 Harley Sporster, 74inch stroker motor w/all the trimings.
'96 Honda CBR 600, Jet kit, M4 pipe (Kills me to own Jap Crap, but it sure is fun)

 

I think they're all like that. Mine shifts hard as hell, i love it.

 

I finally got to meet Johnny a couple of weeks ago in Columbus after almost a year of e-mailing back and forth. Super guy. Anyway, he wanted me to try out the Diablo chip. JL and I went for a ride in my truck so we could evaluate it. It was very impressive in the power dept., and I've personally had at least 6 or 7 different programs in my truck from different vendors. Yes, it does shift very firm including part throttle. It made my sick tranny feel the best it has ever felt, and he has had many customers want this type of feel, so that's why he does it. He asked my opinion, and in my truck it was great. But WHAT04 is right, it's not for everyone and JL knows that. Just call him and send it back. He can easily fix it however you'd like.

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Jim
Black '00
#1,757 built 3/30/00
Clear corners
JDM street program
JDM 2# blower pulley (ordered)
J.L. Stage II ram-air
FRPP Oval throttle body
90mm MAF
MagnaFlow Exhaust

 

My first JL (pre-Diablo) chip shifted a bit too hard under part throttle for my taste. On the second go around, I asked JL to reburn it for a shift kit and it turned out perfect!

With the reburned chip and no shift kit, the truck shift almost the same as stock. With the shift kit in place, the truck shifted the same under part throttle, but leaves the rear tires scratching for traction under WOT 1-2 shifts.

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Francis
'00 Lightning, S/C 5.4
'93 Mustang GT, N/A 5.7
'00 T-Maxx, N/A 0.15

 

They do NOT all shift like that. In fact, I think that a chip that shifts really hard at less than half throttle is a pain in the a$$.

Been there, done that.

But they can be programmed not to.

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2001 Red Lightning Delivered 3-15-2001, 2" Aim Lowering Shackles, Hitch Removed, Group Purchase Floor Mats, Modified Light Switch for Fogs, JDM Filter Kit, Single-Bladed T/B, Keyless Entry, Magnaflow 14568, 22% Tint, Chrome '00 Rims, Bed Rug, M Pulse Lo-Pro Tonneau, Other Goodies. Best Time: 13.41 @ 104.37 mph

2000 Red Lightning - #835 of 4966 Sold 3-8-2001

2001 Yukon Denali White, All Stock

My Zing.com Album Click Here

 

I bought a DiabloSport chip also a few weeks ago. From www.PDQPerformance.com The power is great but the shift was hard. Not the best for just normal driving. I sent the chip back and spoke with the guys on the phone and they reprogramed the shifts for normal operation. It will only shift hard noew on WOT. Its great !!! I have not been to the track yet but they tell me the power is still the same just shifts like factory now. Except for the WOT.


water73
01-silver
DiabloSport
K&N Filter
BedRug

 

I had to send my Diablo chip back to them 3 times to get it right.
1st Detonated and shifted too harsh

2nd Detonated and shifted stock.

3rd Ran OK shifted too harsh at partial throttle.

4th Runs OK and shifts slightly harsher partial throttle.

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HP Cars Owned
70 TA, 71 LT1 Vette,88 Vette, 90 ZR1, 94 SHO,95 M3, 97 Cobra, 99 Z28, 2001 Lightning
I have loved them all and have modified them all to my taste.

 

The softer you shift, the longer it takes the clutches to engage, and the more friction and heat you build up. 'nough said.

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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, cam bolts, Jackson washers, Wet Okoles, Kenyon transmission
13.39 @ 102.5

2001 Kevlacat 2400, twin 115 Evinrude FICHT, Raytheon VHF, radar, autopilot and GPS chartplotter/fishfinder.



gmvye@pacbell.net

 

So..are the hard shifts better for the transmission?

 

Hi Mark. Yes the trans. clutches like the hard shifts...no, or very little sliping.

Jerry