I have had my Automatic since 1999 when I bought a 1 owner, completly stock with 32k miles. It now has 50k on it and is totally modded out. I've removed a ton of stuff I don't need to lighten the car and make it perform better. My biggest challenge has been to get rid of the Stock ECU and go standalone, yet retain the stock functions of the transmission. I believe this transmission will hold up to bigger horsepower increase than originally led to believe. I am after a solid 400 hp. I want to get rid of the OMP and run premix. I think I finally found a way. PowerTrain control solutions ( http://www.powertraincontrolsolutions.com/ ) has a unit that is designed to control and modify the Rx7 automatic transmission. I bought my unit today and should have it very soon. My plan is to install this unit, discard the MAzda transmission computer and continue driving the car for awhile to see how it performs. I am running the latest version of the PMC ( purple PFS computer ) and have had some good luck with it, but want to upgrade to the E6X. Also I have a T04S single on this car, running 1 bar. The problems I want to eliminate are : I still have a hesitation during my driveaway shifts that I think are casued by the stock/PMC interface. Also I am limited to the stock boost level. If I gove over 1 bar I get the Code 13 boost sensor and have to reset my computer. The stock ECU and the PMC are just outdated, and a fresh quick standalone like the Haltec is what I'm after. In the past I hit a wall by having to keep the OMP because the stock ECU see these inputs, and the sharing of signals on the TPS, temp sensors, and crank angle sensors.

I believe the PCS will solve my problem, and I'm heading down that path and not turning back. Here is what I plan to end up with;

PCS running the Tranny
E6K running the Fuel/Timing
Digital 6 plus on the Leads with MSD blasters ( already installed )
SR RRFPR - Already installed
850 primary - 1300 secondary ( ready to install )
Ultimate fuel pump - already installed
To4s kit - Already installed
433 gears - alreay installed
Large ASP IC with custom air duct - Already installed
Fresh streetport motor with 3mm seals and special O rings - Already installed.

Only thing I am not absolutely sure of is Boost Control. How I want to go for that ?

Things I removed on this car

AC
Heater
Front/Rear wipers/motors
Cwest headlite kit
ABS
ABS computer
Ton of unused wires
ALL ac/htr ductwork
FRont bumper reinforcement
Rear has holes drilled
15# battery in rear bin
Hood prop made of aluminum
Altenator bracket made of aluminum
Cusco strut bar mounts made of aluminum

Goes on and on...

Anyway, I believe in the Automatic and the future will tell the tale.

http://www.powertraincontrolsolutions.com

Tom

 

Got my PCS tranny computer today. Going for a weekend install. Very nice unit indeed.

Tom

 

Hi Tom. Congrats on your PCS TCU. I already have mine installed and it is a very nice unit. I don't think it will be the panacea you are hoping for, but it's nice regardless. Plan on about a 30 minute intall, if that. You might check out the forums there as the shift logic was backwards for the overrunning clutch. I have already installed my Sparco wheel with button control kit for shifting from the steering wheel. Not quite F1, but close to my GT3 wheel. I run a PFC with apex 3 bar map sensor and an AVC-R. I usually see about 1.2 kg/cm^2 on pump gas. My mods:

Marvelspeed streetport with 3mm Hurley Seals
Apex RX6 kit
Apex GT FMIC
Apex AVC-R Boost controller
Apex Power FC with datalogit
Tial BOV
1300cc secondaries
RP Comp Fuel pump
OZ diy wideband with display
Petitt Racing Power Pulley
Greddy pulley/airpump removal kit
HKS twinpower ignition amp
resonated midpipe
RP catback
strut bar
TEIN coilovers
18in volk le37Ks
level10 torque converter
level10 pts rebuild kit
PCS TCU with true manual shifting from steering wheel
optima battery relocated to rear hatch with aluminum bracket
awr aluminum radiator
evans coolant-zero psi system.
blah blah blah...

 

oh yeah the hesitation you speak of is not due to the interface. it's called a turbo car with an automatic. the only thing that will help you off the line is a trans brake, and if you find one let me know. i have kicked around the idea of a line lock and this may work if you toss your ABS. Did you swap the rear end yourself? I think the 4.33 might be my next mod. I would also like to toss the A/C.

 

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/auto-fd-programmable-transmission-controller-332292/

https://www.rx7club.com/showthread.p...9&page=1&pp=15

 

Get a heavy duty stall converter.

 

Thanks Weaklink...I got a Line lock and it works great. I removed the ABS long ago. The hesitation seems to be ECU related to me, maybe not. It occurs between shifts 1 and 2. If I poke along it does it bad, If i give it a little throttle the shift is seamless. Anyway that is all going to change soon. this weekend I am going to install the unit.

I've seen your posts on the PCS forum and your problems you encountered. Hopefully mine will have been corrected. Real nice unit, I'm going to mount it and the new E6x on an aluminum plate under the dash, since there nothing under there anymore

Tom

 

stall converter won't help performance, maybe reliability. thing iis, it would be hard to find. level 10 no longer sells them, they will only modify your stock converter. stock stall is already 3000-3300, level 10 initially told me that higher than 3500 isn't streetable.

 

sounds great. i sure would like to see some pics.

 

I'll send you some pics along soon of the car and the Line Lock setup I use.

Did yu use any of the 4 input wires with your PCS ?

Tom

 

yeah one to a microswitch to enter true manual mode. one to right steering wheel button for upshift. one to left steering wheel button for downshift. I couldn't get the hold button to function as they said it would. only problem is the wires wrap around the inside of the steering wheel when turning. Anyone have any ideas on what I can do to keep these things straight? Upshifts work good, but I can't downshift into first unless I am at a complete stop. I need to program the shifts to be a bit quicker and firmer. But it is a blast.

 

Is there a true transbrake for a FD? If not do you know how to "fool" the computer to do it? It is electronic so you should be able to lock 1st and reverse like a true transbreak.

I have a converter on the floor ( losened (spelling?) to 3400), my stock converter goes to 1900 if I have any luck. I would like to go to a 4000, but am worried about burning out the trans.

Also, where is the best place to get a new gear? I have seen all for over $500.

 

the best advice I can give you is to go to a trans shop that you trust and discuss your options with the owner. it's best to find a "mom and pop" shop as you'll probably get too much flak from an aamco, etc. Sometimes you can find a performance transmission place. be prepared to fork over the dough, though, because the labor is going to be high. You might save a lot if you can pull it yourself. Want to do it all yourself? Still go talk to the trans guy as he can point you in the right direction for parts. Level 10 sells a complete kit of gaskets, bands, clutches, etc. for a rebuild.

regarding the trans brake...i didn't know that's how they worked. i will post it on the PCS forum. I asked in a round about way how to improve launches and that wasn't mentioned.

 

trans brakes hold fluid in the reverse gear, so that when you launch the fluid being held is used with the fluid for first gear, keeps you from burning the **** out of your tranny.

 

for higher rpm launches, a little oversimplified but that is pretty much the gist on it.

 

I have an auto Fd that I am modding little by little. I am not going extreme like some of you guys but I do beleive the auto is strong and I want to improve it. My best run so far is 6.0 s 0-60 mph @ 14.0 in the 1/4 mile. Is it bad to hold the brakes and build boost when I launch? I have a stock tranny with only intake @ exhaust, ABS & everything still in tact

 

yes, but what are ya gonna do?

 

true, I just knocked baaaad running 5.6 seconds 0-60 and 13.8 @ 103 with a bad hesitation and a 180 lb passenger. It looks like I shifted 2-3 to low @ 6800 rpm ( I clicked a little before, that's when it shifted and my rpms dropped to about 4500, right at transition, in the middle of a shift. This caused me to spike 14 psi, and KNOCK.
Is this a possible scenerio? It's my theory on what happened.

 

btw nobody makes a trans brake for the fd that i know of and even though it's electronic it is not possible to lock 1st and reverse.

 

Unless we can find a stall converter that works /stalls well above 3K, it's pretty useless. Full boost doesn't occur until we hit the 3-3.5 K rpm mark. Lower gears (4.30s) would probably benefit and exhance the launch. But with lower gears come a lower high-end speed. No more highway cruises at 85mph (unless you want to stress the engine) and get the credit card ready for daily trips to the gas station.

 

any of you guys need a spare tranny I am selling one for 125 with converter you pay shipping. Worked well when removed and did a tranny service just before the apex seals on the engine went just 4 months ago.

 

dude stock stall IS 3000...

 

Hey guys I haven't been in this thread for a while. I am still trying to mod my AT 93 FD. I just ran a 13.9 @ 103 mph at the track with:

7psi and hitting fuel cut TWICE in 3rd gear (gayest boost setup in the world)
3/4 tank of leaded gas
Bad start (shitty brakes)

My car weighed in at 2760.5 lbs without driver and 3/4 tank of gas. My mods are:

3" inch stainless mandrel bent full exhaust with 1 Magnaflow
K&N (hot ram air) cones
Magnecor wires
HKS race plugs
Greddy elbow with type S BOV
Royal Purple synthetic in tranny and rear
Air pump eliminated
Greddy ALT+WP pulleys
14.7 lb battery in stock location
Efini Y-pipe

That's all I can think of. I really like the auto tranny and planning to install 410 gears from a stock 5-speed soon. What is the latest development on this tranny computer and how are your cars running?

 

Sorry for the old thread bumb, but am curious to know if anyone else running this pcs controller and like it

 

There is no reason to add all those electronics since we developed the Power FC adapter for the Auto FD which allows the trans to function like stock. http://banzai-racing.com/store/FD_auto_ecu_adapter.html