To all auto fd's with aftermarket ecu's...
02-21-06, 05:58 PM
#1
To all auto fd's with aftermarket ecu's...
Okay did a ton of research, I came up that the pfc can be used, but you loose the ability of the hold function, making the ability to launch much harder. Also can use the pms purple ecu, but that apparently has problems, and I read that XS engineering can re-map the stock ecu, but didnt see any negatives or positives to that. Their hasnt been any new information in awhile, so curious if anyone has done anything. Right now a manual swap is out of my price range, but its somewhere in my future.
Right now for engine mods I have intake, downpipe, catback, blitz sbc id, and im going to order the 4.1 gears soon. So I figure that puts me at 260whp at 10psi, and the limit of the auto tranny is anywhere from 300whp-320 whp. I have a blitz fmic sitting in my room and 12psi should put me near 300whp. So what ecu can I use to do this, anyone figure out to utilize the hold button on the pfc? With every mod, I get use to it, and I have the craving to go faster, especially after just getting back from a big supra meet last weekend. Raped a na mk4 supra from 80-125, even though guess thats nothing to be proud of.
Thanks for the help, please no bashing the automatic, would like to keep this thread on subject on moderately modded auto fd's.
BP
Right now for engine mods I have intake, downpipe, catback, blitz sbc id, and im going to order the 4.1 gears soon. So I figure that puts me at 260whp at 10psi, and the limit of the auto tranny is anywhere from 300whp-320 whp. I have a blitz fmic sitting in my room and 12psi should put me near 300whp. So what ecu can I use to do this, anyone figure out to utilize the hold button on the pfc? With every mod, I get use to it, and I have the craving to go faster, especially after just getting back from a big supra meet last weekend. Raped a na mk4 supra from 80-125, even though guess thats nothing to be proud of.
Thanks for the help, please no bashing the automatic, would like to keep this thread on subject on moderately modded auto fd's.
BP
02-21-06, 06:24 PM
#2
Rotary Enthusiast
I have Chris at Rotary Performance working on the Power FC thing right now. He is going to try and make it work and retain the hold features. he has an auto FD in the shop now and will work with it over the next few weeks. you can call him at (972)-530-3335 and let him know you are interested if he can make it work. also go with the 4.33 gears in the rear end you will be happy with them and the labor is the same rate.
Jeff
Jeff
02-21-06, 06:31 PM
#4
Constant threat
I'm not sure what you mean about the PFS 'Purple' ECU having "problems"...? From what research I have done, which is a lot, that unit is actually pretty good, with the caveat of "when tuned right".
02-21-06, 06:45 PM
#7
Constant threat
Originally Posted by jeff p
Hey bajaman. how's that PFS Purple box working for you?.I got a lead on one and may get it if this Power FC thing won't work.
Jeff
Jeff
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02-22-06, 06:10 AM
#10
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I have two pink 6 Purple computers, complete. I am just waiting for my car to get back together in order to test them both out. I should be sellin one in a couple of months. Save this thread and get back with me, maybe we can work out a decent price on it.
Terry7
Terry7
02-22-06, 07:01 PM
#12
Have you looked into the PCS Transmission Controller unit? I think there are a couple of other folks on the forum who are running it with moderately modded cars.
I need to do something about my tranny also. I have catback, DP, Intake, SMIC, efini y-pipe, (and supra fuel pump not installed yet) and I am using a PFC. I definately notice the difference with my tranny after all of those mods.
My BF just wants to send it out to Level 10 but I think this controller is worth the try. I heard the company's customer service is really good.
I need to do something about my tranny also. I have catback, DP, Intake, SMIC, efini y-pipe, (and supra fuel pump not installed yet) and I am using a PFC. I definately notice the difference with my tranny after all of those mods.
My BF just wants to send it out to Level 10 but I think this controller is worth the try. I heard the company's customer service is really good.
02-22-06, 09:01 PM
#17
Rotary Enthusiast
The PCS unit is over $700.00 without install and programming. keep the car under 350 hp and the trans should be fine if your not racing. it won't hold up to constant abuse without upgrading it with a shift kit and converter. a good rebuilt racing auto trans will run about $3,000.00. I've been told you can make the auto trans hold up to 500 hp with the right kit installed by a racing shop.
Jeff
Jeff
02-23-06, 08:59 AM
#18
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with the pcs unit you can program the hold button to function "like stock", or you could program it to function as "traction control" mode for snow or ice, or to switch between "sport" and "economy" modes. It really is a neat piece of software and engineering, but, as jeff p alludes to there is not a lot of programming or tuning infrastructure. So, you have this great piece of equipment that know one can put to good use, and you are essentially "flying blind". The PCS forums are great at tech support, and PCS has been very responsive to requests for updates and new products such as the shrifter (www.shrifter.com).
I have a level ten torque converter and tranny built with level ten components gathering dust in my garage.
Anyone interested?
I have a level ten torque converter and tranny built with level ten components gathering dust in my garage.
Anyone interested?
02-23-06, 01:22 PM
#20
Constant threat
Originally Posted by weaklink
with the pcs unit you can program the hold button to function "like stock", or you could program it to function as "traction control" mode for snow or ice, or to switch between "sport" and "economy" modes. It really is a neat piece of software and engineering, but, as jeff p alludes to there is not a lot of programming or tuning infrastructure. So, you have this great piece of equipment that know one can put to good use, and you are essentially "flying blind". The PCS forums are great at tech support, and PCS has been very responsive to requests for updates and new products such as the shrifter (www.shrifter.com).
I have a level ten torque converter and tranny built with level ten components gathering dust in my garage.
Anyone interested?
I have a level ten torque converter and tranny built with level ten components gathering dust in my garage.
Anyone interested?
02-23-06, 02:18 PM
#21
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Originally Posted by purerx7
Have you found any effective ecu's besides the pcs unit?
this has all been covered before BTW....
02-23-06, 05:43 PM
#22
i dont understand the significance of the tranny ecu? What does that control as opposed to say a pms? I know the pms is fuel maps etc etc, is the tranny ecu necessary? I know its been covered, but all searches dated awhile back and wanted to see if their were any new options. Most of it was speculation and only a few actually were running aftermarket ecu's. Thanks again for your time.
02-23-06, 06:34 PM
#23
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believe it or not, but your car actually has a stock tranny ecu (TCU) in it right now. The TCU controls shift points, line pressure, torque converter lockup, etc. Stock, the engine ECU and TCU communicate. If you can get your hands on a field service manual (FSM) you can see exactly what's going on between the two.
when you switch to a standalone engine management ECU, like the PFC, the TCU is effectively "stranded" as no ECU that I know of communicates with the TCU. As a result, the TCU lights up the "hold" light to let you know there's a problem. The engine ECU uses the check engine light (CEL) in the same way. Incidently, you can jump TAT and Ground in the diagnostic terminal under the hood to read TCU trouble codes just like you can with the CEL.
The TCU will still control the tranny, but shifts will be a bit rougher and I suspect that TC lockup does not function correctly. As a result, the tranny runs hotter, and the engine as well since it is attached. I noticed a drop in operating temperature after installing the PCS TCU. It also stopped the flashing hold light as the stock TCU was no longer trying to throw trouble codes.
Get a piggyback. With a piggyback, you keep the stock ECU so the connections to the stock TCU are maintained. I think it's the most cost effective and easiest solution. The PFS PMC has been around for a while. There are several new ones such as the emanage, that I'm not really familiar with.
If you want to know more about the PCS TCU go to www.transmissioncontroller.com . I'll let them tell you why they think you need a TCU! Also check out www.shrifter.com .
Good luck.
when you switch to a standalone engine management ECU, like the PFC, the TCU is effectively "stranded" as no ECU that I know of communicates with the TCU. As a result, the TCU lights up the "hold" light to let you know there's a problem. The engine ECU uses the check engine light (CEL) in the same way. Incidently, you can jump TAT and Ground in the diagnostic terminal under the hood to read TCU trouble codes just like you can with the CEL.
The TCU will still control the tranny, but shifts will be a bit rougher and I suspect that TC lockup does not function correctly. As a result, the tranny runs hotter, and the engine as well since it is attached. I noticed a drop in operating temperature after installing the PCS TCU. It also stopped the flashing hold light as the stock TCU was no longer trying to throw trouble codes.
Get a piggyback. With a piggyback, you keep the stock ECU so the connections to the stock TCU are maintained. I think it's the most cost effective and easiest solution. The PFS PMC has been around for a while. There are several new ones such as the emanage, that I'm not really familiar with.
If you want to know more about the PCS TCU go to www.transmissioncontroller.com . I'll let them tell you why they think you need a TCU! Also check out www.shrifter.com .
Good luck.
02-23-06, 06:47 PM
#24
Thanks weakline you have been of great help, ive been going through some of your old posts about auto ecu's and came accross this thread. https://www.rx7club.com/showthread.p...&highlight=pms
refer to post 17. This guy used a HKS PFC FCON with FCD for over 4 years with NO problems, just curious if anyone else has any expirences with that fcon.
refer to post 17. This guy used a HKS PFC FCON with FCD for over 4 years with NO problems, just curious if anyone else has any expirences with that fcon.
02-24-06, 01:56 PM
#25
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I don't have any experience, but Chris Ott at Rotary Performance said that devices such as the FCON don't allow enough tweaking of fuel to be safe. Obviously it was working out for that guy. I still say just find a used PFS PMC. They used to be all over auto trader. If you can't find one, I think EFI systems was the manufacturer, maybe they can help. There was a guy on here-Ken(luv94rx7?), anyway his brother ran the pfs pmc and he swears the car would spin the tires from a standstill.
