R33 Gtst Auto Box (jatco Re4ro1a) Review?

[b1ancardi]

Hey, I drive a VL (dont flame me, haha), and at the moment, a stock RB25det plus an automatic gearbox from an R33 GTST is being fitted.....

Sorry if this is the wrong forum, and I searched but could find anything, but, I just want to know what this gearbox is like to drive?

Please dont compare it to a manual, I just want to know if its good box for an auto, like does it change gears nicely, etc?

Also, what things normally go wrong with them, what common troubles do they get?

If someone can link me to a review of an automatic R33 GTST, maybe that would be helpful.

thanks

(edit: this should probably be in 'drivetrain and transmission forum, can this thread be moved?)

Edited May 30, 2006 by b1ancardi

[R33TOM]

well ive had my auto R33 GTST for 6 months now and its been pretty good, good as in, if you push pedal to floor it lets the engine rev right out to redline,

maybe its the ecu thats controlling that...i dont know, i know alota auto boxes on other cars refuse to let the engine even go near the reline mark.

but the auto box in the skyline is quite happy to do it.

gear changes are very smooth but it can be hard to stick to 70km mark as the turbo tends to want to make you accelerate and if you let go of the pedal you slow down too much.

Edited May 30, 2006 by R33TOM

[WazR32GTSt]

ok mate.. remember these words before you read anything else - most on here drive manuals nad have never driven an auto skyline.. thus, they only have a preconceived idea that automatic skylines are shit without having driven one. obviously you know that's not the case, so be wary of what advice you wish to take as some posts will be opinions, while others will be opinions based on the fact that they drive/own an automatic skyline

having said that, i drive an automatic r32, which has a similar (if not the same) gearbox to the r33

troubles i have had in the last 3.5 years? none

how does it shift gears? it can flare on some gear changes but that also depends on the gearbox condition. it drives well for me and changes great 99% of the time

its like anything mechanical - it will last a long and happy life if you service it properly (every 20,000kms) and use it as it were intended

oh, btw, i have a transmission cooler attached to mine, and i believe it was a worthy investment at less than $100 from supercheap

i have read of people running over 200rwkw in rb25 automatics without a hitch i personally run 155rwkw through my rb20 auto and it loves it

good luck with the conversion,

Warren.

[b1ancardi]

cool, thanks for the information fellas

just the kinda info I was looking for

[predator]

thus, they only have a preconceived idea that automatic skylines are shit without having driven one.

its ...ok. I ran it at the track a couple of times foot to the floor and it survived.

It's not so good at cornering fast, as it decides to drop the revs right when you need them...pronounced especially on the rb20.

[GTR_STEALTH]

Ive got an R33 Auto....

Havent had any problems with shifting, slipping etc and i give it a bit of punishment. (Not tooo much tho)

Can anyone else confirm for me.... If i drop the auto into 2 (as it just slides in without pressing the button) to get the revs up would that do much harm to the auto? ...kinda like dropiing down a gear if it was a manual.

I've got the stock auto cooler do you rekon i should upgrade?

[LiQuid IcE]

Auto Rocks

A few old threads on the auto:

http://www.skylinesaustralia.com/forums/in...1entry1592531

You gotta filter out the biased and stereotypical replies and just read the worthwhile posts.

http://www.skylinesaustralia.com/forums/in...showtopic=59399

the 2nd thread is a bit off-topic but still helpful, and you may as well do the job properly if ur in the middle of converting now anyway.

[b1ancardi]

Auto Rocks

A few old threads on the auto:

http://www.skylinesaustralia.com/forums/in...1entry1592531

You gotta filter out the biased and stereotypical replies and just read the worthwhile posts.

http://www.skylinesaustralia.com/forums/in...showtopic=59399

the 2nd thread is a bit off-topic but still helpful, and you may as well do the job properly if ur in the middle of converting now anyway.

cool, thanks

[Yo-Yo]

well ive had my auto R33 GTST for 6 months now and its been pretty good, good as in, if you push pedal to floor it lets the engine rev right out to redline,

maybe its the ecu thats controlling that...i dont know, i know alota auto boxes on other cars refuse to let the engine even go near the reline mark.

It could also be the NVCS (nissan variable cam system), rb25's have vv-t on the intake cam.

The auto box is only a 4speed isn't it?

What rpm do you guys sit at on the freeway eg. 100-110 km/h?

[LiQuid IcE]

i sit at about 2.5k to 2.75k at those speeds... i guess it would change depending on some mods.

its actually 3spd ... unless you count the 'overdrive' mode.

[Modena]

Very responsive and smooth.

I also drive an auto VS Commodore and you really cant compare the two... the auto on a commodore feels very heavy and rough...

[GTR_STEALTH]

At 100km i sit on about 2600 rpm (S1 R33)

[mr_crust]

isnt it a 4sp with overdrive?

[**JaR**]

well ive had my auto R33 GTST for 6 months now and its been pretty good, good as in, if you push pedal to floor it lets the engine rev right out to redline,

maybe its the ecu thats controlling that...i dont know, i know alota auto boxes on other cars refuse to let the engine even go near the reline mark.

but the auto box in the skyline is quite happy to do it.

gear changes are very smooth but it can be hard to stick to 70km mark as the turbo tends to want to make you accelerate and if you let go of the pedal you slow down too much.

agreed with all of that. i havnt had any problems with my new gearbox ( i hada replace my old one due to the reverse clutch dying, the drive gears were fine ). and yeah, tis quite easy to redline it and stuff. only problem is how low the revs drop when you take your foot off the pedal, sometimes not good. but apart from that its fine.

isnt it a 4sp with overdrive?

yes.

[b1ancardi]

so its 4 gears PLUS overdrive?

I thought overdrive was counted as the 4th?

[Modena]

so its 4 gears PLUS overdrive?

I thought overdrive was counted as the 4th?

correct.

[Tangles]

correct.

? really??

My auto is 1,2,D plus overdrive

ie its 3 gears and overdrive becomes 4th gear

the r33 auto box is very similar to the Patrol auto box.

Im going to mod mine soon with the MV Automatics (Blackwood, SA) valve body upgrade for harder shifts. Already got a big oil cooler kit. Then she'll be sweeeeet.

[LiQuid IcE]

hehe everyone said the same hting in different ways so it got confusing... its definately 3 speed + OD = 4 (but its still only a 3speed)

[**JaR**]

hmmm. i am pretty certain its 4 plus over-drive.

[LiQuid IcE]

Just checked our cars...My S2 and my dads S1 are both 1,2, D and O/d... i wish it had a 4th though.

Edited June 2, 2006 by LiQuid IcE