VB or TQ mod for auto tranny
08-13-2006, 06:36 AM
#3
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Wait till you have the money for both, because once you have one you will more then likly want the other. So its not worth just buying one or the other, because of down time and both of the mods go well together.
Sincerely Glen
Sincerely Glen
08-14-2006, 07:01 PM
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no... it means that you can raise the RPMS on a launch before the torque converter will completely lock up. The stock converter is around 2600RPM i think, so stock... you don't want to load up too much more RPMs than that when launching a car.
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08-15-2006, 12:59 AM
#8
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Yes it will, you will rev higher to get going. Ofcourse this also depends on what size of a stall converter you go with. Some may not even show a difference in daily driving.
08-15-2006, 02:53 AM
#9
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The VB will make our transmission shift faster which we need...the TQ will increase stall and allow you to launch at say 2K and benefit from the flash to get a harder launch,if you have the traction(it works better flashing than at full torque braking)...it also multiplies torque better which helps the 3.5.
In every day driving the motor revs up easier when accelerating even from speed w/o downshifting.You may notice a slight loss of mpg,but only 1 if that...simply said ,the trans is more responsive to throttle.
Do one at a time if you need to
In every day driving the motor revs up easier when accelerating even from speed w/o downshifting.You may notice a slight loss of mpg,but only 1 if that...simply said ,the trans is more responsive to throttle.
Do one at a time if you need to
08-15-2006, 02:17 PM
#11
The VB upgrade will easily meet your needs. We use them in 450-500whp 5AT's, and the shifting is phenominal. Instead of a trq converter upgrade, I would suggest an upgraded trans cooler. But for 400whp, the Vb alone is awesome. http://www.forgedperformance.com/sto...cat=261&page=1
08-15-2006, 02:49 PM
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I should have been more clear...the FX's are heavy and greatly benefit from the torque multiplication(TC) and higer stall,If you have traction the Z and G would benefit here as well, but definetly VB first and there are VB options depending on torque available
08-15-2006, 10:42 PM
#13
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personally, i think Id go with VB upgrade.
I recently passed on a offer for 3.5 final drive swap because these day gas prices are out of control. 5at already has a high MPG and getting that mod, doesnt make financial sense. I'll then save for nitrous kit... That should keep me happy for a while.
I recently passed on a offer for 3.5 final drive swap because these day gas prices are out of control. 5at already has a high MPG and getting that mod, doesnt make financial sense. I'll then save for nitrous kit... That should keep me happy for a while.
08-20-2006, 11:38 AM
#15
Originally Posted by Sharif@Forged
The VB upgrade will easily meet your needs. We use them in 450-500whp 5AT's, and the shifting is phenominal. Instead of a trq converter upgrade, I would suggest an upgraded trans cooler. But for 400whp, the Vb alone is awesome. http://www.forgedperformance.com/sto...cat=261&page=1
A VB sounds nice but I heard it makes a loud noise everytime when u shift in manual mode? Is that only at hi speeds or everytime u are in manual mode? Does it also do it in D? Also, are u saying if one makes less than 450hp that the stock VB is fine?
If one cant get traction will having a tq converter upgrade make it worst or better for launch?
08-20-2006, 12:53 PM
#16
Originally Posted by Mr_pharmD
A VB sounds nice but I heard it makes a loud noise everytime when u shift in manual mode? Is that only at hi speeds or everytime u are in manual mode? Does it also do it in D? Also, are u saying if one makes less than 450hp that the stock VB is fine?
If one cant get traction will having a tq converter upgrade make it worst or better for launch?
If one cant get traction will having a tq converter upgrade make it worst or better for launch?
I honestly think the stock VB sucks for all FI. Even in the sub 400whp with a supercharger, we oftentimes have trouble shifting cleanly in D, without bouncing off the limiter. So I consider it a manditory upgrade when going FI with the 5AT.
Last edited by Sharif@Forged; 08-20-2006 at 12:56 PM.
08-20-2006, 04:50 PM
#17
I believe the stock stall is 1800rpm . The only thing I dont care for with my SGP VB , is the 1st to 2nd shift . At very light throttle the rear end will clunk pretty hard when it shifts . you kinda got to get used to geeting the rpm's right so it doesnt . At heavier throttle it shifts nice and fast . Great mod for the tranny , but may not be for every one . My girl friend says she doesnt like driving the car because of it . And that is ok with me .....hehe
08-21-2006, 06:19 PM
#18
so it makes a clunk noise in 1st-2nd if u go lite throttle but not if u're trying to zoom through the gears? Does that happen in D or only in 1st-2nd and no other gears? How about when u downshift? I'm trying to determine if I really need this especially if this is going to be a daily driven car. I know I wont be winning any races front a stop but if I can downshift to 2nd in a heartbeat then maybe its a must.
08-21-2006, 06:30 PM
#19
Like I said . The shift from 1st to 2nd [ at very light throttle ] is so fast and hard it clunks the rear end . If your at a heavier throttle it doesnt do it , it just shifts very fast and hard . In D or manual . I havent done to much down shifting with it , but I dont think it will down shift if the rpm's are to high [ not sure ] ANd you for sure you dont want to down shift from 2nd to 1st , the tranny seems to go nuts if you do .
08-22-2006, 01:26 PM
#20
Actually 5AT is kinda jerky by itself, and I would say especially under light throttle. Look into this thread https://my350z.com/forum/showthread....ighlight=thump.