Automatic Transmission Shift Kit. - Updated Oct 2006

[satanic]

Why do you want to buy a stock transmission cooler?

I just did the Davies Craig upgrade and have the stock R34 cooler available. I don't know if I want to sell it though, could come in handy somewhere else from what I've been told

Just get the DC Cooler, it's well worth your money

[SWC945]

well, when i went to an auto specialist, he suggested that i could connect my existing standard cooler to a secondary oil cooler. with both combined, it should give me the same (or close to) cooling capacity of an aftermarket replacement cooler.

but whats the DC cooler? havent heard anything about that.....

[satanic]

The DC cooler is the Davies Craig cooler... it's a massive upgrade over the standard cooler, well worth the money in my opinion now

If you're after the stock cooler though, PM me your offer

[aquariuz6]

just a newbie question...

what do these auto transmission shift kits do?

[AMS]

Any chance of a second group buy or whatever? I'm not goin to go searchin through the thread

[pkblade]

just a newbie question...

what do these auto transmission shift kits do?

They reduce the shift time between gears (shift overlap) & in turn with the quicker shifts it also reduces wear.

Any chance of a second group buy or whatever? I'm not goin to go searchin through the thread

You could ring up Mike from MV Automatics & see if he'll still offer you the discounted price as a SAU member.

[SWC945]

im getting my valve body assembly modified right now by Mike @ MV Auto.

he's been very easy to deal with, and has been a great help with any of my stupid questions too. but best part is that he's called me to update and discuss whats going on - which is helpful as im in melbourne, and my car is off the road for this week while they modify it for me.

as everyone else has said in this thread, Mike has been great!

[Abo Bob]

This thread should be made a sticky.

[Logikal]

Should get another GB going. Sounds like more people are interested...myself included

[aquariuz6]

Yea me too aswell.

I'm keen on getting one in about a month once I round up enough cash to buy one.

Keep us posted if people are interested on these... maybe someone could start one

[4door_Sleeper]

I'll give Mike a ring and see what the prices will be.

I will also see what he can do as a group buy on torque converters. (nothing too over the top- just enought for a daily driver yet a bit more stick than stock)

[lukits01]

Cool, might be interested in a torque converter upgrade

depending on pricing and specs

[aquariuz6]

Sorry but I was just wondering what exactly does the torque converter do?

What is the purpose and use of a higher and stronger torque converter?

Will it make it any easier on the gearbox... if so how?

Cheers

[4door_Sleeper]

Sorry but I was just wondering what exactly does the torque converter do?

What is the purpose and use of a higher and stronger torque converter?

Will it make it any easier on the gearbox... if so how?

Cheers

The torque converter acts as both a clutch (stops the auto stalling when you are stationary) which is designed to lock/stall (or almost lock if you want to be technical) up at a certain RPM. You could consider it as being similar to the manual clutch and easing the pedal out so that the clutch locks up as a certain RPM.

Another benefit of the torque converter is that it also multiplies the amount of torque the engine produces up to the lock point. (and torque wins races, Horse power is for boasting)

A higher RPM torque converter has the benefit of allowing you to have more torque up to the stall point (the curse of high RPM turbo motors has been cured) at the expense of poor fuel economy at any RPM below the stall point.

If you were after a quarter mile rocket you may want to install a torque converter that wouldn’t stall until 5000rpm, which would suit a car with a big turbo and cams that pulled from 5000 - 9000RPM, but if you were to drive the car down the road at 60kmph you wouldn’t be at 5000 RMP, so the torque converter wouldn’t have locked up, and your fuel economy would be awful.

Most people install a much more conservative torque converter that will lock up by 60kmph for a street car - perhaps 2500 - 3000 rpm depending upon the turbos and power curve of the motor.

You will notice the car will rev quickly up to the stall speed, and will have more torque down low, and hence be a lot quicker off the line. With an auto this will also mean your boost will kick in earlier as well.

Hope this helps.

[aquariuz6]

Thanks 4door Sleeper for the information.

So I guess its more to what setup you have on your car.

I only have a VG30 Highflow in my 33 with all the basic mods to support it. I don't think I would need a higher stall converter since my setup is not as extreme. So I guess it would be more useful in a bigger turbo like a GT30 or something.

Guess I will just buy a transmission cooler too keep my transmission alive.

Do you guys think I should upgrade for an auto shift kit?

My goals are only around the 250rwkw mark.

What do you guys think?

[Nightcrawler]

Dude you DEFINITELY want an upped stall converter, and the shift kit valve body upgrade - once you have driven an auto with a higher stall, you will never go back.

Basically when you boot it the revs build, but the car doesn't move (much) until the stall takeup point - so basically you can almost never get caught off boost.

However, if you never want to zoom off the lights there probably is no point - but then you wouldn't own a Skyline - you'd be better suited to a Commonwhore

But, I am going to wait to save up the full $2,500 to do the stall, shift kit and kevlar plate upgrade to make a 100% bulletproof trans

AND, if you're aiming for 250rwkw you WILL need to do this too - I hear the stock trans shits itself at a bit over 200rwkw.

[4door_Sleeper]

Prices on the shift kit and torque converters have been updated today. Full details are on the first post.

Quick summery:

Valve body is $330 +$55 deposit + postage of between 20 and 30 dollars

Higher speed torque converters of between 2800 and 3000rpm are $410 changeover

[gozirra]

The kit consists of a Valve Body for the RE4R01A auto trans, which includes R32's and R33's and some others (Stageas I believe).

Any chance of a kit being offered for the R34 tiptronic in the future?

[4door_Sleeper]

Any chance of a kit being offered for the R34 tiptronic in the future?

Give Mike a ring at MV automatics, he's a good guy and very helpful.

He may have the 34 valve bodies, I just dont know.

[gozirra]

Give Mike a ring at MV automatics, he's a good guy and very helpful.

He may have the 34 valve bodies, I just dont know.

Thanks, will do.