Automatic Transmission
 

Are there any videos/information on the auto? Id like to see how the shifter works. Id also like to know how the shift times compare to dual-clutch transmissions.


All we know is it has a locked torque converter based on the ISF Transmission...

Anyone? :mad0259:

Have you seen some of the videos of the BRZ/86 on the track? Several of them have autos.
I think there are paddle shifters, and the drivers keep talking about how good it feels or something like that. When you see the driver pulling the paddle you hear the gears change, so it's definitely a very fast shift.

yes there are videos of it, browse the video section or do a search on the forums, the shifts a crisp and clean, on some surfaces the auto chirps 2 and third gears, but from what i see the up shifts and down shifts are crisp and clean. its a good auto, you wont be unsatisfied with the results

i sell cars for a living/soon to be in the military, ive driven every type of car out there auto and manual, most cars in the 25k range with a auto mostly suck, toyota and subaru have revised this and made sure the auto didnt take away from the driving pleasure, shift programming from the ISF placed in a IS250 tranny that's redesigned for the 86 is what you are getting, no additional parasitic loss due to the locking torque converter over the manual, in theory the auto and manual should see identical dyno numbers, if you go the auto route you can get a higher stall locking torque converter for better launches :D this car has been in 7 years of development, i wouldnt worry which transmission you get, just do what suits you best

and remember a test drive will sort out any questions you have :D

^ Very informative post! Great summary. :thumbup:

Great stuff! So it is confirmed to be the IS250 transmission with some tweaks? Hope that's good enough... :paddle:

http://www.ft86club.com/forums/showt...nsmission+code


press F3 and type in "trans" should bring you to where speed hunters are talking to tada about how good the transmission is, There is a sport mode that makes the car shift faster/harder

Seems like everyone is giving it heaps of praise... Guess you can't go wrong with this auto!!

If it's working the way its supposed to all you should have to do is floor the gas pedal. Automatic transmissions sense engine vacuum and sometimes manifold pressure vs. vehicle speed to "automatically" shift into what's called a "forced downshift" If your not getting good passing speed or incline power you may need a transmission adjustment a "kick-down" adjustment. 10 year mechanic.

Does anyone know where I can get a higher Stall Torque converter. Running a turbo on the auto and she spools at 2k with the brake pressed and sits there! Let off and its a rocket. I would like a little tire spin...

Tye300 just posted some videos of his auto driving track..

http://www.ft86club.com/forums/showp...&postcount=223

Looks and sounds good!

There's a vendor on here that advertised one a while back I believe...searching...searching...found it, I think.

i dunno, there's a guy on the forum (also posted and used by Perrin), where's he's driving his auto twin...i forgot where i found it. Think it was the 3" exhaust by thread.

Bring an old thread back. I have since put in a Performance High Stall Converter and Valve Body from South Side Performance. 2 words describe the experience and change...."Holy Shit"! You better hold on! With the new stall being almost 3100 compared to 2450 my car hits full boost at launch. Not to mention hitting 40mph+ in 1st and going into second barking tires and slamming you back. The rest of the gears are super crisp but not as aggressive as 1st. The Valve Body I am using will be there stage 1 and I got the first proto type to test and they nailed it! The stage 2 should be here soon and the testing of it will begin. Thanks to whoever pointed me into the South Side Performance direction. They are the only ones who make the High Stall Torque Converter and VB for our cars at the moment. Their experience with high performance transmissions is top notch! Thanks @sspkris

@DeOppressorLiber
Videos or it didn't happen.

I am getting all the videos put together now. Ask @sspkris who has what in their car. While you are at call LJ @FullBlownMotorsports and ask him what is in my car. No need in being a ****. If you dont have something positive to add then keep reading.

I just want to see it haha not being a jerk. I'm excited to see how people put power down with this transmission.

Can't wait to see these videos man!

With this box, you don't have to wait for it to kickdown, ie when I'm going to pass someone, I grab the left paddle, drop a gear or two, and go. The slush box is really good, in sport mode it keeps the revs higher, and you can always manually shift if you need too. Many times on mountain roads, I'll have it in "sport", and when I see a turn with an uphill, I'll manually drop a gear so everything is ready to go on turn exit, as opposed to waiting for the car to figure out we're going up a hill. Still leaves me both hands on the wheel too.

Option 2, drive it in full manual mode. Gearing is different than the manual though, so it gets better mileage, but less off the line speed.

Converting these damn things from a GoPro takes forever and then upload to youtube! I haven't even tried driving it in sport mode with the new transmission mods. I always drive mine in manual with the Traction Completely off.

BTW, the transmission will handle anything under 500whp. The rear diff is a different story. Just replaced mine about a month ago. I haven't heard but of a couple others having the same rear diff issue as mine actually broke on the inside shaft.

What does the valve body (stage one) actually accomplish?

You will see in the videos. The new Valve Body allows the car to shift alot harder from 1st to 2nd and a little more aggressive than factory from 2nd-4th. It basically makes your car go faster because there is 0 lag between shifts. Anyone who knows transmissions will tell you that rhe harder one shifts the longer the trans will work and the faster the car launches. I went out and drove yesterday and took various videos from different angles. I am putting them all together into one and will upload as soon as its done.

Nah-ah really? Sweet that's exactly what I've been waiting for..can't wait to see the videos!! Do the shifts bite harder just in sport mode or can u tell when it's on automatic no sport mode? By harder do u mean faster? Thanks for the info this is exciting news!

I have not driven it in sport mode. The videos you will see the sport button is off. It shifts hard no matter what you are doing! Fast isn't the right word when going from 1st to 2nd! 90% uploaded on Youtube so far.

Here is the Video....
[ame="http://youtu.be/9iLLTNwl6w8"]http://youtu.be/9iLLTNwl6w8[/ame]

Holy shit is right.

@DeOppressorLiber
How much power are you making? Shifts look awesome just like you said and you are seriously lighting them up in 1st/2nd. SSP indicates the transmission can take 500whp with those upgrades? Did you talk to them about running a 4.556 or 4.88 FD with that transmission configuration? That is what I want to do eventually.

I wonder how well I would launch NA with 190 whp (93 oct) or 205 whp (E85)? Wonder if it would bog a lot more than yours due to having so much less power. Seems like I might bog with the OEM 4.10 FD, but with a 4.88 it would probably be launching pretty hard. Hmmm...


Can you do some test driving with it in sport mode and auto mode to see if all is "normal" besides the improved shift aggressiveness?

Hey, thanks for posting. I'm jealous. I want.

I am only pushing 5.6 or .7 pounds of boost. Full Blown has verified the 500 whp on the trans. With these mods from SSP it would actually make the trans last longer because of the shifts. After you mentioned the "sport" mode earlier, I actually went out and drove it. I couldn't tell a difference with it on or off. It doesn't matter if you have a NA or turbo with these 2 particular mods. They will still perform the same. This stage 1 prototype I have would be as high as I would suggest for a DD because of how hard it does shift. The stage 2 prototype is almost ready and 2nd through 4th will be more aggressive and will be in my car for a second round of tests. The bog that you may have seen was due to me letting of the throttle due to traffic and a small vacuum leak @sspkris can answer your technical questions about the 4.88. This transmission is capable of alot more than what most people give it credit for.

The Dynamic Rev Management is a thing of beauty, yes it is just a replication of heel toe shifting but without the work :) . Other FR-S owners in the city thought I had an exhaust because I have tips and the exhaust sounds more lively than stock because of the DRM. Pair that with the red TRD Sound tube, and its a magical sound in the cabin.

My exhaust is completely revamped from the manifold back with the HKS Legamax. I had a Borla header on it before the turbo set up and I really miss that sound! LOL

holy fuck shit!!! Dude this is awesome. So how exactly does the valve body make it shift faster and grab stronger? won't that cause faster wear and tear on the tranny or no? Do I need the higher stall TQ to install the valve body?

This looks so bad ass, what are they saying regarding pricing? Also I've seen pictures of burnt clutch packs? or what ever those gear things are, will I need to re-enforce any other parts if I put the valve body on?

Sorry for all the questions, really new to the AT.. Awesome to hear it can hold 500whp though!

You look like you are having entirely too much fun with your setup! :cheers:

If you think that looks fun, you should ride in it with me not having to worry about hitting a camera with my head and looking around a camera at the speedometer while still trying to watch for traffic! I have a lot of fun in my little rocket, lol. Thank God it isn't my DD or my mortality rate would triple!

If you think you are excited now, wait till you drive one with this setup. I don't want to get into the specifics of what was done to the VB. In race cars this is done. The trans last longer because there is no gear grinding, goes straight into gear jerking your smile to a smear and back again. Seriously! You don't need the higher stall TC to use the Valve Body. But If you are going to get the TC get the VB also. I got to drove the car a week with just the TC in before the VB arrived. You shouldn't have to add anything else if you do one of these or both. I highly recommend them as a combo, they go hand in hand but not necessary for just the VB. Im not sure if the prices for the VB has been set yet but it is on there site. The TC is ready and they have a couple ready. Heat is the number one enemy to a transmission. This is what started me on my quest to find a High Stall Torque Converter because I basically melted mine. They offer the best designed trans cooler I have ever seen. The guys at South Side work on high end sport cars and this is just a niche for them. Check out their website at sspperformance.com
Also, you can ask @sspkris any technical info. He is the engineer that I have been working with throughout the testing. He may point you to Tim. They are great guys and they do what they say they are gonna do. One thing I want to add to this is the core charge they charge if you buy a TC or VB. This is charged in case a customer does not return the one off their car for them to remanufacture. I personally could not believe at the amount of people that has done that to them and the money they have lost. This is why they charge a core charge. As soon as they receive your part, they will refund you the core charge. I know for a fact that they have 1 VB there that they got from me so if you want one, you better start calling! I bugged them for about 2 weeks about the TC and we have forged a great partnership. Hope this helps!

Wow. That is awesome! Thanks for the vids!

What I've noticed with sport mode...

-It doesn't try to downshift until you get higher in the rev range, like 5k+ OR, you're going easy on the throttle for an extended period.

-If you're hard on the throttle it shifts closer to the rev limit. If you're cruising along and give it throttle, it downshifts quickly just like you would in a manual.

-Under hard braking, it automatically downshifts to keep you in an optimal rev range to accelerate out of the corner.

-Manual mode has bump shifting if you're more comfortable with that. Probably what I'll try this summer during autocross because the paddles are awkward mid-turn.

-Shifting through the gears is about as fast or faster than me in my STI. Downshifting through multiple gears is slower because the auto has to bump through each gear in sequence. Keep it in sport mode while racing and you won't need to bump down multiple gears.

The only real downer of the Auto trans is the launch, but Liber seems to have solved that with his mods.

This was one of my first trips to autocross with my BRZ. When I can afford a supercharger and Liber's mods, I might be semi competitive because of the slow launch. I'm concerned I might damage my all stock drive train if I start left foot braking to launch the car.
[ame="http://www.youtube.com/watch?v=KarSyoSYA3c&list=PL7xXKGMAfAirOy22J-XzRsXWM15DQSmCa&feature=share&index=7"]Subaru BRZ AutoX My Fastest Run of the Day - YouTube[/ame]

It's the only way I launch in auto cross. I haven't noticed anything to date wrong with the drive train.
I can sometimes launch fairly well if I hit just right. I do notice that by the end of the day I seem to have less performance as the trany fluid has increased in temp.
So trany cooler will be a must. Then that alone puts you in CSP, but then all of it sans FI puts you in that class.
Personally I CANNOT drive the car in auto, always in manual. ALWAYS.


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I always drive in manual also. Left foot braking to launch is what caused me to get these 2 new mods. I literally melted my OEM torque converter. So I started a thread on here about aftermarket ones, and of course the ignorance was abundant in the responses. A lead from a member pointed me to South Side Performance and that started my relationship with them. In rhe videos I am left foot braking the launches. The High Stall Torque Converter builds to full boost at 3k which is the new stall. The Valve Body is what makes it shift harder thus making the times faster! As for tranny mods....the High Stall Torque Converter, Valve Body and trans cooler from South Side Performance is all you will need to be one super happy guy! Heat is the enemy to any transmission, so for racing of any kind the cooler is imperative to its performance.

Ya I can see my mod path opening up before me. Full CS build incl high end coilovers. It's my daily driver. Then a straight jump to CSP due to the AT mods.
This because I too am starting to left foot brake. So it will happen to me also. Not as fast as I am NA. My last hurrah before I get really old and cranky.


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I'm actually quite impressed with the 6AT in the FR-S/BRZ. I drove a MKV GTI with DSG for 6 years before I bought my FR-S and the FR-S tranny can definitely hold it's own against a DSG. Yes, it does shift slightly (and I do mean slightly) slower than a DSG and the Sport mode isn't as aggressive as it was in my GTI but it is very responsive and shifts faster than any other conventional automatic transmission I've encountered. The DSG is also notorious for not downshifting to the proper gear. I remember dozens of occasions where I would be getting on the freeway and I would give the car nearly full throttle and the transmission could not seem to find the right gear. I haven't encountered any of those problems with my FR-S. Very happy with the 6AT in the FR-S thus far.

saw ur video yesterday DeOppressorLiber
i was wondering about SSP and they are actually local to me :thumbsup:

i know where to take my car to when its time to upgrade the engine