Anyone done this and hit up the track yet? For those who havent read about this mod, it just consists of disconnecting a plug which in turn allows for full fluid pressure in the tranny, and therefore makes shifts faster and much harder. Just wondering if anyone has done this and tried it out at the track. I'd love to get to a track and try it myself, but I'm at school now

 

mzmtg ran a 15.1 @ 90 in his automagic 4th gen with just an intake and the drop resistor mod. The best stock time I've seen for that car was deezo's 15.6, and an intake doesn't help *that* much, so I think the drop resistor mod had to have been good for at least a couple ticks.

 

JIME does this at the track and runs low 12s. Nuff said.

 

lol, that makes it sound like the drop resistor is some miracle mod unless they know that jime sprays. A LOT.

 

I wouldn't run without it. The connector came off on me once and I made a pass and it took about 3 seconds to shift from 2-3. At first I thought something went on the tranny until I checked the connections.

I think a couple of passes at high power with really slow shifts like that would probably cook the clutches.

The more power you put down the longer it takes to shift. To prove the point I rented a Sentra last weekend and slipped my NX kit on it for the races on sunday. I disconnected the drop resistor and N/A it shifted really fast just like the Max. However when I sprayed a 75 shot it took about 2 seconds to shift but with it connected it took about 5 seconds. To me its not about fast shifting as much as a safety measure for the tranny.

PS The reason I rented the Sentra was because I am parting mine out and selling it and wanted to finish the points season. Next race I am going to try a 6 cyl Stang and see what I can do with it. All I could manage out of the sentra was a 15 flat vs 17.7 N/A.

 

you are crazy lol...

 

I hope you aren't looking for an argument. Cuz it won't come from me. That is not the first time someone has said that.

 

an argument? naa I think its awesome your spraying whatever you get your hands on. It takes some guts

 

So it makes a significant difference...
Jime: you feel it helps the tranny strength or could it possibly damage anything?? W/O NOS of course Haven't been down that road yet

 

Yet another reason to NEVER buy a rental car.

 

For daily driving leave it alone, its way to harsh. For the track, I believe it will save your tranny. I have found the WOT switch to be the best compromise, it drives like normal at part throttle and at WOT it shifts fast.

 

Ya that would be the best way to go I suppose. I think I could probly wire in one of those... Definatly like bein able to chirp into 2nd gear tho. Thanks!

 

I tried this and wasn't able too chirp 2nd....weird but for some reason it really didnt shift that hard on my 02.

 

I use this all the time. It dropped my ¼ almost 2 full tenths.

 

Anyone have a writeup of how to set this up? Particularly wired to a switch of some sort. I did search first but nothing usefull came up

 

just splice the wire and run it thru a simple switch. I'm gonna do this Friday I think, so maybe I'll get some pics and a quick writeup for ya.

 

I recently learned that my car is an ex-rental. Of course it doesnt really matter at this point...8 years later...

 

So I unplugged the sensor again yesterday to mess around - and found that under WOT, the shifts seem the same as with the sensor plugged in. MAYBE a little bit faster, but I dont think so. Any of you guys have the same thing? Didn't try manually shifting either, but dont think that would make much of a difference. Now I want the VB mod again

 

I noticed the same thing. WOT the 2-3 shift is much better but the 1-2 is nearly the same.

 

I have a very fast and very hard 1-2 shift. My 2-3 is also much improved, but nowhere near as fast.

 

hlmm... didnt keep it to the floor long enough to let the 2-3 shift happen under WOT, but the 1-2 just isnt strong like it is at partial throttles... dissapointing

 

Maybe something has changed from 4th gens. It kind of sucks b/c I thought this would be a good weapon for my next runs on slicks coming soon.

 

Hmm... gonna hafta exeriment more. Maybe if I let up on the gas a bit it'll shift harder? Or manually shift 1-2? Lots to try today good thing its friday!

 

The more power you are putting down the slower it will shift, thats why it seems slower at WOT vs part throttle. I really notice a difference between 14 second runs and 12 second runs which are much slower.

 

Ok thats good too know. Thanks




Matt

 

His name is Jim.

 

Thanks for the info
















Matt

 

I may have to do this mod my next go round. I'll have an ECU along with the VI to boot.

 

I haven't ried this with the 02 Max yet. But I did notice when spraying it did seem to take a little long to shift form 2nd-3rd. It was like the tranny was slipping some. I'm just a little worried about running "full" line pressure all the time at WOT, even if it's at the track only. No one has had tranny problems when doing this mod? I even mean over time as well.

 

Someone was saying they've had this done for 2 years or so and no problems. I also worry about runnin full pressure all the time though, even though it makes great shifts under about 1/2 throttle

 

I should have specified, which wire is it exactly? I remember someone mentioning a while back in an old thread it was on one of the front strut towers or something. I really want wire this to a switch, he||, when you think about it.. if you shave off 2 tenths, thats a pretty amazing mod for free.

 

 

I did this trick last time at the track and the difference was negligible. I've got Don's VB mod however so that may be the difference between Jime's noticing something and me not. Also the fact that my times are bunk compared to his

 

What sensor do you unplug and where is it .

 

It isn't a sensor its a resistor and the picture is above.

 

I've had this for five months. 10K and nothing bad has happened. There is also the argument that it saves the tranny. It puts more pressure on valves but stops to TC from spinning so long reducing heat in tranny and heat is the first enemy for auto trannies.

 

how would this work with the valve body mod, i am looking into getting the vb mod but this just mad it seem like there is no reason to. Well, it will make the tranny last longer i guess but would $325 be worth it?

 

also to run a switch, how much power is going through those line, i am wondering what type of wire i should use

 

I used 14 gauge but probalby overkill. Just wanted to be safe. I have been using this mod for almost 2 years now since the first time I saw Ben's site.

http://bgarner.tripod.com/1995nissanmaxima/id3.html

Also do it as a WOT switch or otherwise, it is not, I REPEAT NOT, to be used under part throttle INMHO it a WOT mod only.

 

I'll be at the track this weekend and I will run with and without the mod.. and I will post any differences in times.

Anyone have a WOT switch hooked up? If so, what kind of switch?