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The Automatic Performance Thread

WazR32GTSt

By WazR32GTSt,
in Engines & Forced Induction

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scotty nm35 Grand Master

scotty nm35

Posted
Posted

I had my re5 built a few months ago, the valve body upgrade was imported from the US, thinner steel plates were laser cut so more clutch plates could be added and Dominator custom made me a 3000 stall converter on their 5 axis mill. The re5 is a much weaker box compared to the re4 (so I have been told) but this is holding the 250awkw I am pushing through it at the moment and is still very drivable. I had to disconnect the solenoid for the stall lock up clutch as it couldn't handle the power lockup the ecu was trying to make it do. (It locks constantly while in tiptronic mode.) I have fitted a switch in the dash to drop 12v onto the solenoid so I can lock it up still on the dyno.

I'm interested now to rip out the auto ecu and switch the solenoids manually, anyone know if there is such a kit for the 5 speed yet? If not I will have to design something.

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scotty nm35
scotty nm35

The auto will suck 10% of the engine power on average so you need to aim higher than your goal. What GCG highflow is it, the 3076 cartridge? Why not save 1k and get a more responsive Hypergear? Or j

Kinkstaah
Kinkstaah

Figured I'd post up my dyno sheet here as I (scotty) finally got the car up and running again. Trent @ Chequered had to actually not go WOT until 4500 RPM as the spike was causing his dyno to sh

Kinkstaah
Kinkstaah

I posted in your other thread re: Developments (same box!) since I posted in this thread in 2014.

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Dj laBBy Collaborator

Dj laBBy

Posted
Posted (edited)
im not a new at this mate i did searches, didnt find much on upgrading steps for autos. Just beacuse I drive it daily that doesnt mean i dont want it to be powerful. im just not going to thrash it like i would on a circuit. This being an auto performance thread i was hoping for advice on performance for my auto. And even tho timing belts can alter engine performance its not why i spoke of it at all, reason being was while im changing that i was wondering if anyone had ideas that could be done at the same time to save time/money performance wise. I'm changing the belt due to noise, these imports are known for having false odo reading so im doing it early to be safe.

Im not looking to learning about autos exactly, never modded an auto so i want assistance on mods for power gains for an auto. I dont want change my turbo for a garrett anything as yet, surely people have decent power without hurting the ceramic too much. If i knew what to do i wouldn't be asking. Anyway sorry to intrude mate ill seek advice elsewhere.

Cheers!

Hey mate, wasn't trying to have a go, but by the way it sort of came across like you actually didn't know to much and like so many people out there just gave a what do i do to get "a daily street car that does fast times".

I don't have a problem helping people out on what mods to do if they know what they want and want to inform me and other what they are trying to ask for in terms of engine, or drivetrain, or electronics or whatever.

There is so much stuff out there in this site it is rediculous, so thats why i said in my opinion go 30 bottom end, 3540 turbo, blah blah blah. You never actually said what you would like to do or budget. The only thing you said is that the car is auto. How is anyone going to give advice on little information.

Well you can work out the engine part, but being the auto thread, It depends what you want for power output. The biggest and easiest thing would be to get a shift kit. A simple stage 2 shift kit. This will help stiffer shifts and any flaring between gears and prolong box life and help it cope with any extra grunt. You need a bigger oil cooler, or well an external to the standard radiator cooled cooler.

Once those mods have been done and don't expect to pay more than $500 with everything fitted(if you can't do it for your self) the next place to go from there, get a higher stall converter. Try for about 2800 or there abouts, depending on turbo setup. That will let the engine to increase revs higher and get greater torque to the wheels, then it'd really start to cook. With 250-300rwkw and just that setup, expect 11's or at least low 12's and your box could/should handle it.

The rest is up to you.

Rob

Edited by Dj laBBy
  • 8 months later...
bubba Grand Master

bubba

Posted
Posted

I need to find a bigger stall as my stock 2300rpm stall just doesn't cut the mustard with a highflow that isn't making any serious boost until 3500rpm.

I have heard that 34GTT's are 3000rpm stock.. is this true?

What other bolt-up options are there? (car is a series 2 C34 Stagea, pretty much same box as 34GTT)

Mitchee Proficient

Mitchee

Posted
Posted

I need to find a bigger stall as my stock 2300rpm stall just doesn't cut the mustard with a highflow that isn't making any serious boost until 3500rpm.

I have heard that 34GTT's are 3000rpm stock.. is this true?

What other bolt-up options are there? (car is a series 2 C34 Stagea, pretty much same box as 34GTT)

MV autos do a high-stall, coincidentally I have a whole setup for sale. :)http://www.skylinesaustralia.com/forums/topic/349136-eoi-built-r34-tiptronic-transmission-by-mv-autos

bubba Grand Master

bubba

Posted
Posted (edited)

MV autos do a high-stall, coincidentally I have a whole setup for sale. :)http://www.skylinesaustralia.com/forums/topic/349136-eoi-built-r34-tiptronic-transmission-by-mv-autos

I need an AWD box and cbf swapping internals :P (box is still going strong though and was squeaky clean when we did the welsh plug mod).

How big is the stall you got from MVs?

Edited by bubba
bubba Grand Master

bubba

Posted
Posted (edited)

I've got a 2800rpm mall stall from All Fast if your keen... I'm also located in Perth :)

Interesting but I don't think it will be high enough, I think I'd need 3000rpm to get it on to boost (or put my 3L in the wagon heh)

Can you PM me what it cost to get that stall built? Cheers :)

Also, is the torque converter the same between R33 and R34?

Edited by bubba
  • 2 months later...
cactus Collaborator

cactus

Posted
Posted (edited)

Well went down to the Nostalgia Drags at the Perth Motorplex on Sunday... a 1pm start time wasn't the best for the car (considering the 36 degree heat) but it was still a good day. I had the car set-up to get my ANDRA licence (tailshaft loop, harness, isolator switch etc.), but when I got down there, for some very stange reason my race slicks and mags were rubbing on the guards - even though I have used the exact same tyres/mags in the past!

Anyways, car was pretty good all day considering I was only running the street tyres. Recorded my best time around 6pm when it had cooled down a little - 11.5 @ 121 mph, unfortunately street tyres only allowed 2+ second 60 foot time (I think it was around 2.1 - 2.2 seconds). This is with the car running around 350rwhp @ 15psi. Had planned on getting it tuned to 20psi the week prior, but didn't get my shit together in time.

Was a good fun day. Really want to break a 10 though (which I am very confident it will do once I get the slicks and some boost into it).

Edited by cactus
  • 1 month later...
Tangles Grand Master

Tangles

Posted
Posted

hi guys newbie here,and was wondering whether some one could give me a phone number and address for mv autos as i want 2 buy some bits for my auto or atleast get some advice,thanks in advance for any help

YellowPages is your friend..

M V Automatics

The Automatic Transmission Specialist

1 Stirling Rd, Blackwood SA 5051, Australia

Phone number(08) 8370 0430

  • 1 month later...
poohkies Rising Star

poohkies

Posted
Posted

guys i'm from the vl side of the fence, just spent over 3k on my auto to freshin it up, looking for alot more power, my auto is only rated around the 300kw mark, and wanting to search different options, i don't want a glide and more gears the better

these RE4R03A how much does a build to take the 450 kw mark cost to build, and does anyone know about them in aus, or where to buy the parts ? thanks

DR 32R Rising Star

DR 32R

Posted
Posted (edited)

No hater of VLs. KEAS and MV automatics know these boxes well. I have a strong recommendation to Bob Grant Automatics. Where was yours built?Most of my quotes aimed at 350kw have been large.

Edited by WHITE gtt
poohkies Rising Star

poohkies

Posted
Posted

No hater of VLs. KEAS and MV automatics know these boxes well. I have a strong recommendation to Bob Grant Automatics. Where was yours built?Most of my quotes aimed at 350kw have been large.

G&z automotive built mine! All keas parts, I have a 4 speed vl box with the works! Power is rated between 300 and 350, after taken him for a drive he said your driving style no more than 300, looking at having that on low boost and close to 400 on hi! And looking for a cheaper option than another 4k any1 had any luck with a c4.

  • 4 weeks later...
  • 2 weeks later...
DR 32R Rising Star

DR 32R

Posted
Posted (edited)

Stop start traffic defines Sydney. Mine isn't a daily. The Ford version F6 4.0L6 and ZF 6 speed auto was a great combo. I think my rb25 with gt35, re403a trans, may be less so. One a idea is using stall on the converter to stall it into the turbos sweet spot. Accelerative performance in drag not circuit also relies on area under the curve, an auto is just floored on the throttle, while a manual loses thrust during the shifting. Plenty of fast manuals. It's preference and what you want to do with it.

Edited by WHITE gtt

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