Hi, I'm thinking about buying the VB mod before thedeal goes out at maximumtuning, but does the VB mod have any chance of blowing my tranny or anything negative like that?
THANKS

 

Just a harder firmer shift... its nothing to cry about though. I've driven a supercharged Auto Max with the Stage 3 VB mod and even though its a firmer shift, I love it.

 

has anyone ever encountered problems with the VB mod? I seriously do not want to blow my tranny because of false information

 

Its not going to blow your transmission.... its actually going to help it.

 

No negative effects that i have experienced. I love it. it will make your tranny last a lot longer too. get it!!

 

jus a Q, everyone says it shifts faster, does down sift improve? one thing i h8 is when im like in 3 or 4th and i stomp the gas there is a lil pause before the car down shifts. this really hurts my performance. i dout i can get help from 4 to 3rd, but how bout down shifting from 3rd to 2nd, or 2nd to 1st.

 

I wouldnt do it... I mean if you have OD on and wanna downshift real quick to 3rd just hit OD off... other than that you can technically go down to 2nd but you have to know your RPM's and not downshift into too low a gear... you dont wanna over rev

 

Yes it will downshift quicker and harder. I have a stage 2.5 and occasionally it will bang the gear in pretty hard when downshifting

Only possible long long term wear issue would be the engine mounts since the shift is harder it will put more stress on the engine mounts

 

But it saves the clutches... which is what almost always goes bad

 

an one last question...has anyone that you know of ever had problems installing this?

 

^^^^bump^^^^

 

thanx for the replies.

ant i didnt mean me manually down shifting, im talkin about like when im cruisin at 40 and the car is in 4th (OD) and the light starts to change, ill stomp on the gas and the car automaticly down shifts but it pauses for like a second then it picks up. i was wondering if the VB would help and from what you and the other guys say, it will down shift faster. this is what im mainly concerned with, the up shift is just icing on the cake.

well i already have all the other bolt ons, its either a VB mod or an ECU upgrade.... decisions decisions.

oh yea dont forget a tranny cooler, that is recomended if not required for the VB Mod.

 

what do you me before the deal goes out at maxima tuning? they wont have it no more?

 

they will keep selling the VB, but for the month of august they will either ship it to your door or install for you at their shop for $350, as compared to $450

Excellent deal if you ask me, but I don't know if I'll be able to get the money by then, gotta bug jeff a bunch. Maybe he'll extend the deal

 

Why would want to spend $350 or even $450 When you can get the same shift kit for $47.50 + $6.00 S/H and do your own VB edgeracingconverters.com

 

No problem, I thought thats what you meant since alot of people do that. The downshifting is alot quicker, you'll still have that lag, but it will kick in harder.

 

Or spend the $5 and do the drop resistor mod. Easier and cheaper.

~THT

 

WHEN the downshifts occur are controlled by the ECU (right?), so it won't make the car decide to downshift sooner than normal.

HOWEVER, when it does decide to downshift, it will do so immediately (no lag time). An almost instant shift.

 

It is not the same thing at all. It is not even close.

 

ever since ive gotten my vb mod done ive had nothing but problems. now all of a sudden my car drops into lockup and all weird problems. soleniods were replaced also

 

Combine posts? Check out both. Same topic:

http://forums.maxima.org/showthread....72#post3184472

 

can u be a little more descriptive about your problem? like where you bought the valvebody, etc. Thank you

 

i got it done at jeff's...1-2 2-3 shift fine. Tranny was overfilled. A week after I left my torque converter lockup started acting up on me. I called them about a month later to see if they could help and all i got was a sales pitch on a new rebuilt tranny. Basically I having lockup problems since ive had the valvebody and soleniods done. Never had a problem before hand. Its a very annoying driveablilty problem. Otherwise the other gears are mint. Although the 1-2 is still somewhat to hard for my taste and everytime it shifts i think a part of my car is falling off

 

I dont own an auto max, but im curious... Can you chirp 1st gear to second???

 

from what i've heard, yes. Even 2nd to 3rd.

 

With cheap tires, you can chirp the tires without the VB mod. With good sports tires, it's tough to do.

However, after the mod the gear change will definitely chirp your tires from 1-2 and 2-3 if at wide open throttle. An awesome feeling compared to before...

 

yeah after getting the vb i constantly chirp 1-2 . not very often can i chirp 2-3 though.

 

So is guy the only one that's had a problem with the VB Mod? I haven't heard many stories, but yours does worry me, I have an appointment to get mine done on Friday.

 

I can only tell you my own experience, which has been good. They seem like an honest shop with good guys. It is certainly possible that they made a mistake (that happens and is forgiveable). But if they made a mistake and didn't own up to it, that is definitely not cool.

That's the first bad experience that I've ever heard about them though, so I would take it with a grain of salt. My experiences have been excellent, as have those of others I questioned before doing this mod.

I definitely recommend them (and the stage 2 VB mod) based upon my own experience.

97MaximaSE: I'm sorry to hear about your bad experience with them and don't know the details, but it does disappoint me if your story is true and not missing any important details. Like I said, I can only speak from my own experience and I am happy to hear from someone who has not been treated with the same courtesy and good service. These are things that need to be said and are one of the great things about the .org. People tell it like it is (for the most part anyway, some are wise guys, but certainly most only want to help). Thanks for sharing.

 

dont get my wrong i love the vbmod...btw the only time ive spun 3 gears is in the rain but it still feels good. I just wish that when i called they could have at least asked me to bring the car in to double check everything. I know the vbmod has nothing to do with the torque converter but this problem didnt start until immedately after the vbmod install. I dont want a rebuild nor do i think i need one. Plus i did drive over 3 hours there to get it done and its hard for me to get there on the weekdays. anyway who knows i may have a solenoid that is going bad even though they were replaced. all i know is its not normal and now no tranny shop will touch it because of the vbmod so im screwed till something blows

 

That really sucks. Sorry to hear that. Maximum tuning wouldn't help you out by offering a reasonable price if indeed it is only the Torque Converter?

Maybe you can swap your VB with someone from the .org (sell it basically). Then you can worry about the real problem of having a working transmission...

Best of luck to you.

 

im not even sure as to what the real problem is. the 1-2 and 2-3 are great just that damn lockup problem. I would be happy to just find out what the problem is rather than fix it.

 

Sorry to bring up this old one but the ECU doesn't control the downshifts or upshifts or any shifts(even the ones of your @ss cheeks.) The TCM does all that deciding. Now that would be cool if JWT or some other company could reprogram the TCM to hold in third below 35-40MPH and downshift the moment you go WOT.

 

Thanks for the clarification. I wasn't sure (hence the question mark in my response), but I was definitely trying to get the point across that the VB mod will NOT change *when* your car decides to shift. It only speeds up the shift after the car had already decided it's going to do so.

But thanks for the info. Always happy to learn more about my car.

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So, I'm personally not inclined to buy a new ECU because it doesn't do much most of the time (unless you have a MEVI and decide to up the rpm range). My understanding is that the biggest advantage of a new ECU is to change the stock fuel mapping pattern to make it more aggressive. The only time your car actually uses this fuel map is at WOT. So you don't get any extra power at anytime other than WOT.

If you take your car to the track a lot, it may be worth it though.

Is my logic regarding upgrading the ECU correct?

 

The ECU proportionally does more without the VI than with. The reprogram will give you 10+HP/TQ throughout the powerband. The VI doesn't do well down low so the reprogram fills in this void and brings the power back to near stock levels in the midrange. TS ECU + Stock manifold = torque insanity. I do believe your correct that the reprogram only goes into effect for WOT fuel map. I'm seriously considering having my USIM manifold EH'ed to get nearly the top end gains of the VI but not lose the down low.

 

Thanks for the info. Definitely clarified my thoughts on the issue.

Good luck with that manifold operation if you should go for it!

 

im calling for vb mod later today...