Practicality of valve body mod.
#1
Practicality of valve body mod.
I'm thinkin about doing this mod as I hear it helps your tranny shift better. Has this mod benifitted anyone significantly or is it pointless. anything to help my tranny out a bit is something I'll do.
#3
as far as i know, it really seems to increase shift firmness, wich helps create less heat in the tranny (heat is a bad thing). Not only does it make the shifts faster, it can actually help prolong the life of the transmission. As far as actual timeslips are concerned, i don't know if anyone has gone to the track with the stock VB and then run again with the only upgrade being the VB Mod.
#5
For anybody who has the same question I found an answer.
http://www.mobiletek.net/vb.html
http://www.mobiletek.net/vb.html
#6
it increases the line pressure in the automatic transmission. this means if full throttle is applied, and he internals are spinning very rapidly, the pressure increases. At normal speed shifts, it is still smooth and comfortable. When you really lay into the gas...its obviously a harder shift, and much smoother and less lag than stock. You ever really floor it, and the tranny seems like its thinking whether or not to down shift? During that period of time, the engine is still spinning, but the tranny isnt exactly griping, so you can really mess up some internals (i believe clutch bands are the big wear part). A VB mod (of you drive "spiritedly") can extend the life of your transmission. according to the mobiletek site, it can yeild a .4-.6 second drop in your quarter mile time. Several people have gotten the VB and noticed no change in performance, returned it, and got a brand new one back that performed wonderfully.
#7
Are you sure that it only changes the shifts during WOT? I had a person who has a VB in his max drive in my car and he said that the shifts are pathetic compared to his VB. I never went WOT but he still made that comment, making me think that it changed the shifts at all times. I'm not saying you're wrong SXN, I'm just saying that he way my friend said it sounded like 100% of the shifting was changed. I don't have a VB so I can't really say. Someone with a VB plese answer this guys question.
#8
no, you didnt read it write. it is firmer shifts all around. but the pressure increases with engine RPM (so firmest at WOT) Its unlike the drop resistor mod, that gives full line pressure at all times
#9
hey, i don't know what kind of pricing these guys have, or their reputation either, but here's another site. http://www.maximumtuning.net/
#10
i just got it done. i need to buy a tranny cooler asap. the one i have is damage... i think its a nice addition...when i drive normally it shifts almost like normal but when i get on it it shifts a hell of alot faster...but i havn't got on it much because i'v got no cooler =[. anyone got that link i saw on the org for that really cheap website with tranny coolers? i'd say get it!
#11
Originally Posted by repro69
hey, i don't know what kind of pricing these guys have, or their reputation either, but here's another site. http://www.maximumtuning.net/
to jeff at maximumtuning
#12
Originally Posted by Torgus
i just got it done. i need to buy a tranny cooler asap. the one i have is damage... i think its a nice addition...when i drive normally it shifts almost like normal but when i get on it it shifts a hell of alot faster...but i havn't got on it much because i'v got no cooler =[. anyone got that link i saw on the org for that really cheap website with tranny coolers? i'd say get it!
#13
#17
id go to maxtunning as they have great customer service. the vb is a great mod if you really cant stand the granny auto shifts we have.
i had problems with my tranny after i installed my vb, not sure why, but then jeremysride2000 and i did his vb and he hasnt had any problems at all.
the vb will make your auto much much more enjoyable/sporty to drive.
good luck
i had problems with my tranny after i installed my vb, not sure why, but then jeremysride2000 and i did his vb and he hasnt had any problems at all.
the vb will make your auto much much more enjoyable/sporty to drive.
good luck
#22
Originally Posted by SXN
if any of those VB owners would like to make a "how-to" or install write up, that would be cool
http://www.mobiletek.net/vbinstruct.html
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