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Location:
Whyalla
Registered:
June 2004
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Manual shift kit for MX73 1JZGTE
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Tue, 28 December 2004 13:10
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Hi, I would just like to know everything I can about this manual shift box that MV Automatics in SA make. We cant get the 1JZ A341E auto trans wired upto my MX73 Cresida so a few people from this forum have recommended it to me. What exactly does it do, has anyone got a picture of it? DO you have to shift manually all the time or are you given the option of auto shifting?
Any info would be great, is anyone currently using one?
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Location:
Wollongong
Registered:
May 2002
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Re: Manual shift kit for MX73 1JZGTE
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Tue, 28 December 2004 23:45
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You have to shift manually all the time. It basically emulates the factory ECU and tricks the gearbox into thinking that it's still there (even though it's not connected anymore).
I was going to use this method so I could use a PowerFC ECU on my Soarer, but I went out and converted the car to manual anyway 
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Location:
Whyalla
Registered:
June 2004
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Re: Manual shift kit for MX73 1JZGTE
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Wed, 29 December 2004 00:21
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I want to convert to manual aswell but just dont have the cash to spare haha, really at the stage where I just want to get my car on the road for now. Is it very hard to install? This manual shift box looks the goods, has anyone had problems with it yet?
Will it have any adverse affects on the trans, pro's and con's?
Sorry for all the questions, just trying to get as much info as possible before diving in
True, I never thought of that!! They dont make PowerFC's for Toyota trans do they? Except if you have a JZX100 if im not mistaken :-S
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Location:
sydney
Registered:
March 2003
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Re: Manual shift kit for MX73 1JZGTE
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Wed, 29 December 2004 00:50
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shit you still fuking round with the auto
if you had sent me the loom ages ago it would be done by now
i recon i would be cheaper than all the shit i read u r tryin to do
but anyway its yr choice
those manual shift kits is like a tiptronic
u have 2 buttons on yr steering wheel
one changes gears up and the other down
its full manual shift
and when u click it into overdrive it also bring son the lock up torque converter solenoid so its direct one to one drive
one day i hope to buy one and do afew tests and figure out how to have a switch to go from std auto ecu full auto shift to this tiptronic shift by a switch of a button
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Location:
Whyalla
Registered:
June 2004
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Re: Manual shift kit for MX73 1JZGTE
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Wed, 29 December 2004 01:35
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Yep still fuking around with the auto unfortunately
And it prob would have been cheaper, but at the time, we were getting so many people saying they knew what to do but couldnt deliver, my mechanic wasnt really in the mood to send the whole loom off, sorry I know it would have been alot easier and prob cost the same but hes a stubborn plick haha but Ive finally broken him down and hes given up hope of wiring up the trans with what we have now.
This manual shift sounds the goods though,hopefully give me a bit more driveability with the turbos. Good luck with that, be awesome if you could get it to work both ways and allow people to choose auto if they want
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Location:
Whyalla
Registered:
June 2004
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Re: Manual shift kit for MX73 1JZGTE
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Wed, 29 December 2004 01:51
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Sounds like a fair bit involved, how come there so cheap?
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Manual shift kit for MX73 1JZGTE
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Wed, 29 December 2004 03:56
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| woofa347 wrote on Wed, 29 December 2004 09:51 |
Sounds like a fair bit involved, how come there so cheap?
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Because they aren't that complicated. While the complicated part of the auto ECU is all the stuff to work out when to change gears, the signals it sends to the gearbox itself to change gears are simple as.
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Location:
Lismore, NSW
Registered:
February 2003
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Re: Manual shift kit for MX73 1JZGTE
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Wed, 29 December 2004 08:26
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Dad has made his own manual shift for his 7M powered celica and also a JZZ30 soarer ( which you can have it set on auto or 1,2,3,4, Lockup (5) Works a treat if your interested
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Location:
sydney
Registered:
March 2003
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Re: Manual shift kit for MX73 1JZGTE
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Wed, 29 December 2004 09:12
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just remember this
for the auto to change automatically yiou need to wire it factory or have some sort of ecu control the auto
its controlled by revs and road speed and throttle
this device to go full manual all it does is
select the correct solenoid to get gears
its selects one for 1st
then one for 2nd then one for 3rd
not sure which way is what gear
but you said ages ago your loom is sort of fukt
well u need to knowwhat wires do what on yr gbox
u need the 2 solenoid wires for the gears
and the converter lock up soleniod wire
the thing that would stop me gettin this device is not being able to run it full auto
havin an auto and then havin to manually changes gears every single time would be a pain
might aswell get a manual
then if yr car has cruise or abs goin manual will cause problems for that side of things
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Location:
Whyalla
Registered:
June 2004
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Re: Manual shift kit for MX73 1JZGTE
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Wed, 29 December 2004 09:38
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Its ok thanks anyway Celicaboy but Im going to order a manual shift kit from MV auto's tomorrow.
What are the pro's and con's of using this manual shift kit? WIll it affect performance at all?
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Location:
Lismore, NSW
Registered:
February 2003
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Re: Manual shift kit for MX73 1JZGTE
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Wed, 29 December 2004 23:38
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At 1st it will but when you learn how to use it and what revs to change etc it will be better then the fully automatic. If I ever get an auto ill be doing the same thing.
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Location:
Whyalla
Registered:
June 2004
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Re: Manual shift kit for MX73 1JZGTE
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Fri, 31 December 2004 00:47
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Im looking forward to getting use to the car all over again.
After I have the manual shift box installed, would the obvious aftermarket ECU choice be the PowerFC? I wont be going aftermarket ECU until later in the year, just curious. I have heard that the Haltechs are quite good and come with 1JZ base maps. Im in country SA so there isnt much support for people who know there way around a 1JZ let alone tune a PowerFC lol
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Location:
Whyalla
Registered:
June 2004
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Re: Manual shift kit for MX73 1JZGTE
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Fri, 31 December 2004 00:51
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I just dont like the cost and idea of sourcing all the parts to go to an actual manual trans just yet, Im so broke at the moment haha. Is the manual shift kit just a bandaid solution or do most people switch to a full manual trans in the end?
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Location:
Adelaide
Registered:
June 2002
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Toyota Auto modification info (f.ucken massive essay..everything you never needed to know)
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Mon, 03 January 2005 23:47
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Ah Christ-I started writing a quick reply but it all just came out at once. Sorry about the essay. Anyway, I've written down everything I picked up as I went from a W58 to the full house A340 that is in the Crown now. If you're still after a shift box I could ask mike for you-MV is only 3 mins from my place.
Hi there mate-I'm using a full manual shift supra 4spd auto box in my crown, and with regard to your last question, wether or not the manualised auto is a bandaid solution depends on what you're after.
If you are after a car to attack bends-one you really want to drive hard-the go would really be a manual box.
Alternatively, if you are interested in more straight line stuff and the car you are building up isn't really one for twisty stuff the auto is the sensible choice, (cressida?-It'll only ever be average through the bends unless you spend mega$$$-and then it'll ride like a dog). I'd also guess that living in Whyalla means there aren't too many twisty roads...(I've been there a few times). I went auto as the crown handles like a complete turd regardless and I wanted to build a package for 1/4 mile stupidity.
(as an aside, your first ride in a Turbo car with good power and a tricked up auto can be quite an eyeopener. THERE IS NO TURBO LAG, or indeed ANY LAG once the car is on boost. Each time you upshift the box jumps instantly into the next gear, the boost increases and the car takes off. For straight line stonk, a turbo and a tricked up auto are a brilliant combination.
My opinion is that you'd be better off with the auto in a car like a Cressida in a pretty flat regional area. A manual conversion will cost a fair bit and may involve a few hidden costs. (tailshaft mods, speed sensor mods, crossmember mods, pedalbox install, clutch master cyl install etc) The other thing is that the gun supra turbo boxes are pretty pricey and a good clutch is also going to be expensive. You can go ceramic puck type clutch to save cash-but they aren't exactly traffic/driveway/carpark friendly. Driving a manual car with lots of grunt is great fun (the crown sure was with a 250+rwkw 5Mturbo)-but in my opinion a manual conversion for a cressida is probably a fair bit of cash spent for not much gain. If it was manual to begin with, sure, but to convert to a non-recoed manual box (ie not modded to handle grunt and may need an expensive rebuild after a few hard miles) will be about the same dollars as getting the existing auto sorted to handle anything you dish out.
Another thing to consider is the impact that converting to manual can have on the car. When you drive a manual car hard, every time you slam it into the next gear it puts huge impulse forces through the drivetrain. For this reason the unis, diff, driveshaft unis and diff cradle bushes etc all get flogged out much faster in a manual car. You are also far more likely to snap something when getting a bit rowdy on the gas and clutch.
The manual shift trans is super easy to use, and because you can still run the Overdrive and converter lockup (also fully manual) it's brilliant for cruising. Because the auto OD ratio is lower than 5th in the toyota manuals-0.68 vs 0.75 or thereabouts-and the converters have the lockup function-you can get pretty awesome mileage out of them on the highway.
Some seem to think that manually shifting an auto would be a real pain, but consider that all you have to do is push the lever back and forth-no clutch, no H-pattern, and if you have had the valvebody done it shifts much faster than you can shift a manual (excepting dogboxes, Liberty drag manuals, airshifted manuals etc of course, but that is getting into purpose built race stuff-not mass produced stuff that gets modified)
A good aspect of going auto is that there are a series of things you can do bit by bit to improve the box to cope with increasing engine power.
Here's a rundown-
1. Manual shift transistor box. $180 or so-install yourself. (this means you can avoid possible headaches of getting the auto ECU working properly-often very hard when fitting later model engine/auto trans-This bit can cost a shitload if you have someone doing it for you) The MV box isn't a tiptronic/button type, it only hooks to the shifter and gearbox and doesn't specifically switch the OD or Lockup. You need to set that up yourself but they both only need to be 12V on/off. There IS someone who does the tiptronic setup though-he's on PERFORMANCEFORUMS-you can dig him up pretty easily if you post there.
2.Bigger transcooler-AN ABSOLUTE MUST WITH THESE BOXES-Anywhere from $20 to $200 depending on what you buy-you can also mount it away from the airflow if necessary by using a small fan strapped to the cooler. I've currently got two Dick Smith computer fans on mine and its mounted flat behind the headlight. (and it never gets hot)
3.Trans Temp indicator-$70-$300 (Ive got a cheap Splitfire one and it works a treat) Not mandatory, but good insurance if you are going to be giving it a hiding at times and you have spent some cash on the internals. Without one you run the risk of melting the guts of the box-and one good cooking is enough to fuck the fluid and fry all the friction material. Then keep driving it without knowing you've damaged it initially and you can start melting shit together (just like I did...=-).
4.Uprated valvebody-$300-$400 (from memory)this changes the actual shifts themselves. They become shorter and harder, reducing the time the box is slipping up into the next gear and heating up the clutchpacks. (heat is mainly what fucks auto clutch packs). The increased hydraulic system pressure in the valvebody also means that the gears are more tighty held.
5.Hi-stall Converter-$400-$500-an increased stall speed will give you better launches and neck snapping acceleration from slow speed due to the torque multiplication effect. It will thrash your fluid a bit more-but the trans temp guage and more trans cooling generally keeps it under control-if not, you just whack another trans cooler in. And on the open road you just hit the lock up and there's no slip in the converter to soak up fuel.
6.Full gearbox re-build for abuse...This is the last stop, and the biggest cost item $1500-$2000. This is all new friction materials, extra clutches for second gear (2nd gear is the weak link in the toyota (A340 etc) boxes), all new/upgraded thrust bearings/roller bearingsetc,machining to the actual trans case, other mods I can't remember. This is really only required when you start playing with bigish power levels and launching it with sticky rubber though. (I think around 400hp and up is the aviseable level) I'm currently pushing 700+nm through one and it hasn't missed a beat.
Anyway-there you have my complete rundown on the Toyota Auto option- maybe more info than you needed, but you get the whole picture then, (and once I started I figured I should finish it properly). I'm not an anti manual gearbox person, it's just that they aren't the best thing for some combos and can end up being pretty bloody expensive if you're aiming at big HP. One thing to remember with these sorts of conversions is to be very careful and plan what you are going to do before starting. Otherwise things get expensive(I've been there....) Doing it right to begin with will actually save you money.
Of course, if you have have designs on going drifting in the Cressida once it's done-disregard everything I've said-you'll need a manual.
Anyway, take it easy, and if you've if there is anything I've missed there just yell out.
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Location:
sunny coast, qld
Registered:
October 2002
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Re: Manual shift kit for MX73 1JZGTE
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Tue, 04 January 2005 00:42
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thanks for all that info. mate! will be very helpful in the near future
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Location:
Whyalla
Registered:
June 2004
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Re: Manual shift kit for MX73 1JZGTE
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Tue, 04 January 2005 00:43
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Cheers heaps for that info!!!
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Location:
Whyalla
Registered:
June 2004
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Re: Manual shift kit for MX73 1JZGTE
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Tue, 04 January 2005 01:00
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Actually that would be great if you could put one on hold for me or something, because I have tried calling them heaps but I think there still closed for the holidays. Any idea when they re-open?
Your a champ, thanks again for the info, I'll PM you tomorrow if I cant get a hold of MV by then.
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I supported Toymods
Location:
Sydney
Registered:
August 2002
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Re: Manual shift kit for MX73 1JZGTE
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Fri, 14 January 2005 11:52
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| sideshow wrote on Wed, 29 December 2004 11:50 |
......one day i hope to buy one and do afew tests and figure out how to have a switch to go from std auto ecu full auto shift to this tiptronic shift by a switch of a button
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I'd certainly be interested in something like that for my Cressida when you get around to looking into it further...
I was going to go with a shift kit and decent stall, but in the end, comfort and ease of driving were most important to start with so I just went with a slight 2200-2400rpm stall
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Location:
QLD
Registered:
October 2004
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Re: Manual shift kit for MX73 1JZGTE
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Tue, 18 January 2005 08:15
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i want to try to get a group buy for mx73 cf bonnets
if any1's interested pm me
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Location:
Adelaide
Registered:
September 2003
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Re: Manual shift kit for MX73 1JZGTE
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Tue, 18 January 2005 09:33
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| MX73_drifter wrote on Tue, 18 January 2005 18:45 |
i want to try to get a group buy for mx73 cf bonnets
if any1's interested pm me
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What has this to do with an auto shift kit ? FFS 
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