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Old Wed, November 24th, 2010, 11:15 AM
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Robert6401 Robert6401 is offline
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Location: Gilbert, SC
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JW Trans is installed and while I am really pleased with the performance of it I do have a question with regards to tuning for it. If I am accelerating anywhere between somewhat agressively and WOT, the shifts are perfect. By "somewhat agressively" I mean about 2200rpm or so. The problem is, in traffic I cannot usually get above 1800rpm when accelerating without running into the cars in front of me, and at that RPM the shifts are a bit harsh. It kinda feels like the trans is being thrown into the next gear. I am trying to get in touch with John to get his take, but I was also wondering if this is something that can be manipulated in the tunes. I would assume so, BUT the shifting is the same when I remove the chip completely as well.

Thanks for the help!
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2003 F250 Lariat 7.3PSD CC SB FX4

Kwik (6637) Filter, RE 2.5" leveling kit, F350 Rear Blocks, TC Lock, Fumoto, EBPV/Exhaust Brake,6.0 Tranny Cooler, AIH Delete, IssPro EV2 Gauges, PHP Phoenix stock, 25tow, 40tow, 65tow, 80dd, 100perf, In-tank mods, Muffler Delete, WW, FRx,HPx, JW Stage 1 Trans, Swamps HV/HF IDM
-Pulling a 38' Forest River Sierra 5th Wheel
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