Alright trans experts......
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Joined: May 2008
Posts: 71
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From: Clearwater, FL
I finally hooked my trailer up and drove about 400 miles with it yesterday. The first 200 miles were empty and the trip back I had a racecar in it with no engine/trans. Trailer weighs about 4800lb and the car maybe weighed 2500lb tops.
So, it seems to take way too much pedal just to get it moving from a stop. Once I'm rolling it pulls and shifts just fine but the converter seems really loose off the line. There is no shutter or anything though. I got about 12-13 mpg empty at 65-70 mph most of the way down and on the way back I slowed to 60mph and with the car in there I still was getting 13-14mpg. Trailer is a 26' enclosed V-Nose.
Question is, can I up the line pressure and maybe help lock the converter up tighter so it leaves the line better? Or will I need to start saving up for a new VB and TC? Other than the "Off the line" issue the trans works perfectly.....
I am ecstatic about the mileage I am getting with this truck. I have consistently been getting 16-17 mpg running around town with no real highway miles.
Before everybody here tells me to buy a new trans, please keep in mind that I will NOT, at least for the next couple years, be able to spend a ton of $$$ on my truck so I really want to know if upping the LP will help me. Honestly, if I can't do that without hurting it, then I will just deal with it as is....
Did I mention that I like the mileage I am getting?
So, it seems to take way too much pedal just to get it moving from a stop. Once I'm rolling it pulls and shifts just fine but the converter seems really loose off the line. There is no shutter or anything though. I got about 12-13 mpg empty at 65-70 mph most of the way down and on the way back I slowed to 60mph and with the car in there I still was getting 13-14mpg. Trailer is a 26' enclosed V-Nose.
Question is, can I up the line pressure and maybe help lock the converter up tighter so it leaves the line better? Or will I need to start saving up for a new VB and TC? Other than the "Off the line" issue the trans works perfectly.....
I am ecstatic about the mileage I am getting with this truck. I have consistently been getting 16-17 mpg running around town with no real highway miles.
Before everybody here tells me to buy a new trans, please keep in mind that I will NOT, at least for the next couple years, be able to spend a ton of $$$ on my truck so I really want to know if upping the LP will help me. Honestly, if I can't do that without hurting it, then I will just deal with it as is....
Did I mention that I like the mileage I am getting?
Thread Starter
Registered User
Joined: Aug 2002
Posts: 8,803
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From: Northern Virginia
Yes I have. It helps on the top end but not so much on the bottom end. I am also just running a 65hp Duration box which still gives me a good amount of lag unless I give it a bunch of pedal to get moving. There is much less lag if I turn the VA box on high but that's definitely too dangerous to do without guages as it's known to make very high temps. I will have guages within the next week or so. I have a Predator downloader to install still too. That may help me some but I just haven't had time to get the truck setup to run it. (I have to undo my Tone ring mod)
Registered User
Joined: Jan 2004
Posts: 983
Likes: 2
From: Simi Valley, CA
But, I wonder if one of these transgo kits might help your situation. I have wondered about these myself. But, I still have some time left on my powertrain warranty and don't want to jeopardize it. Here is what the advertiser says about them . . .
"NEW TransGo SK48RE Reprogramming kit for 2003-2006 4 Speed 48RE HO Diesel & V10 transmissions. Competition, Off Road and Pro-Street. Will hold 1st, 2nd, or 3rd to any rpm. Backshifts to 3rd, 2nd and 1st at any rpm. Reduces converter slip. Has Hi-Temperature Low Shrink Rings. Comes with separator plate. Contact me at orders@missiontrans.com with any questions."
No...................
"NEW TransGo SK48RE Reprogramming kit for 2003-2006 4 Speed 48RE HO Diesel & V10 transmissions. Competition, Off Road and Pro-Street. Will hold 1st, 2nd, or 3rd to any rpm. Backshifts to 3rd, 2nd and 1st at any rpm. Reduces converter slip. Has Hi-Temperature Low Shrink Rings. Comes with separator plate. Contact me at orders@missiontrans.com with any questions."
No...................
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