Manual To Auto Conversion

[W0rp3D]

Just got a few questions that i can find any answers to.

1) What sort of power will a standard box hold?

2) Can you make one fully manualised and keep the standard shifter, or even better use an R34 tiptronic shifter?

3) When it is a full manual do you still need an auto ecu?

4) what would it roughly cost to make it handle about 350rwkw with about a 3000rpm stall and trans brake?

5) How much extra electronics are needed?

6) Any thing else you can think of that will need to done?

Edited December 6, 2008 by W0rp3D

[stenve]

ive answered most of these questions several times before.

check my posts might give you a starting idea.

[W0rp3D]

ive answered most of these questions several times before.

check my posts might give you a starting idea.

You will have to point them out to me, i just went through 8 pages of your posts and apart from some good info on installing a shift kit (which i found last night while researching) i could not find any answers to any of my questions, and i can not find any info on converting from manual to auto.

Edited December 7, 2008 by W0rp3D

[W0rp3D]

Also the first line of my initial post should read: Just got a few questions that i "cant" find any answers to.

[stenve]

Sorry mate I'll break it down as best i can for you

1) What sort of power will a standard box hold?

Standard box is usually good for up to about 200rwkw maybe a bit more, depending on condition of box how you drive it etc.

mine gave out at about 190-200rwkw. add an MV shift kit into the situation and most people say you are good for 250rwkw

any more then that and you are looking at better clutch packs, kevlar ones etc.

Heat kills auto boxes, so a larger trans cooler is a must

2) Can you make one fully manualised and keep the standard shifter, or even better use an R34 tiptronic shifter?

you could keep the standard shifter, but changing from first to second would blow, as you need you use the button.

also with spirited driving i could see yourself knocking it from D to N pretty easily.

R34 tiptronic could be possible but ive never looked at one or the wiring involved etc. if you want to keep it looking fairly standard get a B&M pro ratchet. remove the cover and find a leather gear boot to suit and cover it with that

3) When it is a full manual do you still need an auto ecu?

As far as i understand, No. You could use power FC, Vipec, etc or a stock manual one as the TCU

(transmission control unit) isnt need anymore to decide when to change gears or to retard timing

4) what would it roughly cost to make it handle about 350rwkw with about a 3000rpm stall and trans brake?

No idea. Shift kit $500, Hi Stall $450ish so thats almost $1000

then you need to have the box pulled apart rebuilt upgraded my guess at least $2000

so there is about $3000 for you to start with

5) How much extra electronics are needed?

To make it manualised you need a controller box. plenty of auto shops have their own designed ones, or you can give mike at MV a call and he does them for $325 or $375 i forget which one. He said it is about 7 wires you need to splice into and he provides a mud map of which ones which is fairly easy to hook in i believe.

You could also look into the Suprastick V4. http://www.latentsolutions.com/suprastickuv.html

not sure if that will work on a skyline though. been meaning to send them an email to check

I think ive read somewhere a while ago that it wont work.

6) Any thing else you can think of that will need to done?

Transmission oil gauge i think would be a good investment if you are going to be building a strong auto box with decent power going through it.

Satanic blew out his flex plate at 300 and something, and dangerman is running over 300 with the stock flex plate i believe. so that could be another thing you may need to look in to.

Best thing i can recommend to you is give Mike at MV autos a call tell him what you want to do and see what he recommends. Top bloke very helpful the few times ive called him to ask questions about general stuff

as for going manual to auto:

you are going to need an auto tailshaft, or modify the manual one, auto gearbox, im pretty sure the manual and auto crossmembers are the same so should bolt up.

auto shifter, auto pedals.

Auto diff? manual and auto diffs have different ratios - something you may want to experiment with?

Auto cars have shift lock, to get out of park you need a foot on the brake so that might need some wiring, you'll need a TCU if you aren't going to manualise it.

check out the auto to manual conversion thread to suss the wiring to see if anything is needed there.

I don't have much experience with that part so im not much help there, sorry.

If you have any questions about any of that stuff feel free to send me a pm or ask in here, i'll do my best to help