Just curious to see what different types of computers everyone is running and why they picked them?

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93 RX-7 R1
Apex single turbo
Apex dual N1
Apex AVC-R
Apex PFC
custom SMIC
HKS SS BOV
unorthodox pulley
1200cc secondaries
nippondenso fuel pump

 

Autronic SMC

Simply put this is the best ECU you can buy short of paying 5 times the price for a Magnetti Marelli, Zytec, Ohle Bull, Motronic F1 Quality ECU

It is more highly regarded than MoTec by notable racers such as Larry Perkins in Australian V8 Supercar series, and has been proven the world over in many different arenas of motorsport.

Very accurate, very reliable, & very cheap for the features and it's accuarcy..it is also quite simple to programme as well.

NOTE: Recent horsepower hero car in Australian dyno comp made 850rwhp on Aussie dyno (you can add 15% to this fig for dyno jet) at 16psi from twin turbo V8 using Autronic ECU.



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blow blow blow ya goat gentley down the stream hahahaha

will hopefully have a Haltech E6K in my hands by late next week.

 

I have fallen in love with the ease of the Wolf 3D. I have been around the haltech and it is a very good unit as well. It is a bit harder to use than the Wolf, but it has a few more features. I didn't want an all out computer, but wanted better control than a piggy back. I chose a wolf and I am happy.

 

hey 13b-rew check your pm. I left you some info!

 

I'm going to be running the Haltech E6K with a T78. Reason is for programmability. I was originally considering the Power FC but was a little disapointed with the lack of datalogging and absolutely disgusted by the fact that only Apexi dealers get the necessary software to 'really' tune the unit. This means $80/hr and a round trip to SR or XS Engineering to get the rough setup followed by a narrow view of the maps through the Commander. Turns out the Haltech works out to be roughly the same price and is way more programmable. Running premix and having to wire everything (instead of just plugging into the stock harness) is a bummer but it's worth the adjustability. There are also a lot of RX7s out there using the Haltech so there is good support. In the end, Poweraxel convinced me (Thanks Steve!). Went for a drive in his T51R / Haltech FD and was impressed with the drivability and smoothness (and of course the power!).

 

<---- Who me?

 

My T-78 is ready to go in, and I'll be using a Haltech E6K. I like it because it's easy to get to work with a rotary, especially a 91 TII motor like mine. Pretty much ALL of the tuners here use it, so there's alot of support; and they seem to be able to tune them well. It also doesn't hurt that my guy is going to install and tune it for $800.

 

I only wish I could have gotten to your place 30 minutes earlier so I could have gone home with that HKS turbo kit ! Oh well, I am anxious for the T78 to show up, just ordered it today (got lucky, found one kit!!
, seems they are on backorder everywhere).

 

I got an old microtech digi 2 coz they were dirt cheap and there are numerous cars here in Aus running 8's with them so that has to mean somethin? besides I didnt need the extra functions that the more expensive brands have and the hand set makes it real easy to tune when you are driving around and doubles up as a neat datalogger without having to have a laptop sitting in your car.

I have heard of them apparently having trouble keeping ignition timing and fuel timing consistant but I have found no such thing and wonder if it is people spewing that they paid 5 to 10 times more and are going slower? I also wonder how people come to the conclusion that the MicroTechs arent accurate as I would assume you would need some pretty funky gear to be able to detect if the fuel or ignition timing is off by a couble of milli secs at 6000rpm??

 

i used to run PMS on my car and that's old news plus there is to comparison between E6K to power fc or pms or wolf EMS. so i chose heltech e6k . i send my car down to RP back in NOV 2000 to do motor, turbo{T-78} , heltech E6K , fuel system {1600CC KIT} , new GREDDY fmic, + tuning and everything. they charge $2500 just on heltech { install + tuning} . i should get my car back very soon!!

 

I decided on the Haltech E6K also for the accuracy and the tech support.If you can't figure it out someone else already has.Also, it has alot of options other systems don't
I've tried the wolf3d and it does not have the same accuracy with larger injectors.(1600cc).

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94(Single Turbo)
SCCA-SPO

[This message has been edited by SPO-RX7 (edited March 16, 2001).]

 

Ummm Streeter, i dont think any of the 8 second cars are running digi 2 systems, they are running MTX series ecu.

 

I chose my Wolf 3D mainly because it's easiest for me to get support and tuning tips for it. As we all know, a stand-alone is worse than the stock ECU if you can't tune it right. I also like the Wolf because of the ease of use. Overall, I think the Haltech is a better unit...but tuning is the most important thing. The new version Wolf 3D will be a big set up also.

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I am running a PowerFC.

Here are the reasons:

1. This is an Apexi brand. I tend to like this brand quite well. The AVC-R is another standout product.

2. Lots of support in my area as X S Engineering is 15 miles away.

3. X S Engineering is great to work with.

4. The tuners around the area all said PowerFC is the way to go. Yup, if someone was to recommend a fried turd with wires hanging out of it, I would have most likely gone that way also.

5. It's cool!

Seems like, so far, the tuning has been excellent.

Rick
1993 RX-7 Project
almost broken in with 705 miles on motor!!!

 

I realise that they arent using Digi 2 now but usually when people bag Microtech they bag "Microtech", not a specific model, besides a few years ago when Digi 2 was the latest and greatest that Microtech had to offer Maztech were already deep into the 9's if not already running 8's.

I dont see the point in buying an Microtech MTX ECU that will only offer me a few new features when I already have an ECU that is working perfectly well. If I was too spend big bucks on a new ECU I would most likely get a Haltech or Autronic but the performance gain/features doesnt justify the outlay at this point in time so Im going with the old saying "If it aint broke dont fix it" and if anyone has any real criticism againt the digi 2 please let me know as I would be only glad to find out any known defects with it.

 

the digi 2 is the one in which you need shares in the screw drivier factory and a trained octopus to tune right?

 

Status??!?!? I need to know when I can come up for my ride

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dragfc@rx7city.com
http://www.rx7city.com
<A HREF="http://www.rotorheadracing.com" TARGET=_blank> </A>

 

HEheheheh yeah I know the one your talking about. No the Digi 2 is Digital and is very similar to the MTX range so similar in fact Im not sure what the MTX have that the digi 2 doesnt. Digi 2 has the basic data logging ability to drive auxilary components such as a thermo fan or shift light, and I am pretty sure all the load maps and timing increments are identical to the MTX as well.

 

Greg,
I FINALLY got the 91 coupe running today, so I'm not in a big hurry because I still have a car to use. It should be a week or two, maybe more, but I'm not going to rush them. I decided to ditch the 2 extra injectors and just run 2 720's and 2 1600's. The turbo wobbles a little, but we'll see how it works out. The worst case would be that it would blow a little oil. Gordon Monsen told me he had his rebuilt and upgraded for only $750, so I may wind up doing that before I take it to the track.
Jim

 

Hey get on aim

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dragfc@rx7city.com
http://www.rx7city.com
<A HREF="http://www.rotorheadracing.com" TARGET=_blank> </A>

 

I am running a Microtech MTX8 in my car, was running a digi 2, the main difference is that the digi 2 uses factory coils and the MTX uses bosch coils. The MT series is not much different to the digi 2 but the MT's are the latest and do make more power, i dont know exactly how but mine made 30hp more on the same dyno and same person tuning it.

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81 rx7
13B turbo
10.93@124

 

the MTX series have better resolution than the digi 2 i THINK (but dont quote me on it) the MTX has 20 load points per rpm range.

[This message has been edited by HWO (edited March 18, 2001).]

 

Sorry, but I didn't see your message earlier. If you don't see me just send me an e-mail.