RICE RACING

With the recent development in power on my street rx7, I am seriously looking at running one of these units.

http://www.racelogic.co.uk/

Either that or changing my ECU from Autronic SMC to SM2 as this unit has traction control as a feature, price for new ECU is $2600 Aus where as racelogic system would be less hassle to install and work out cheaper. Any thoughts? Anyone else look into this?

Should I just turn my boost down

I want to race my car v'soon and at the moment cannot use full throtle power at speeds below 105mph without violent wheel spin, in a straight line ! let alone exiting a corner or taking a slight bend under full power !

LUV94RX7

iTrader: (3)

I e-mailed JIMLAB, he has some knowledge of Racelogic.

I'm sure he'll reply.

Ken

Cheuk in Seoul

One of the guys with a 1100 hp Skyline R32 here in Korea uses it... Impossible to beat that car off the line. He just engages the secondary rev limiter and the traction control...then LAUNCHES.

AJC13B

pfft

Time for some real tyres mate

I cut a 1.71 60ft with my 32Rs, 17s as well! With bigger profile on 15s, you shouldn't have to many issues!

4SFED

what sorta power are you making to turn the treads at 170km/h?

setzep

Did I read that right?? If so why don't you take off the spare tires and put some real ones under the yellow beast.

jeremy@matrix

For more info on Racelogic, visit this post;

https://www.rx7club.com/forum/showth...14#post1327514

Let me know if there are any other questions.

Best,
Jeremy

smerkinseven

i've been looking into getting a traction control unit for my car... wow this looks great. how much????

jeremy@matrix

Here is pricing;

Racelogic Adjustable TC w/ ABS; (Max 12cyl)
$995

Racelogic Adjustable TC w/ (Wheel Speed)WSS; (Max 12cyl)
$995

Racelogic Adjustable TC w/ Launch Control & ABS; (6cyl) $1150

Racelogic Adjustable TC w/ Launch Control & WSS; (6cyl)
$1150

Racelogic Adjustable TC w/ Launch Control & ABS; (8cyl) $1300

Racelogic Adjustable TC w/ Launch Control & WSS; (8cyl)
$1300

Racelogic Adjustable TC w/ LC, Data Logging & ABS; (8cyl)
$1595

Racelogic Adjustable TC w/ LC, Data Logging & WSS; (8cyl)
$1595

Full Throttle Shift
$175

Let me know if you'd like to place an order(a 550WHP 3rd gen placed an order yesterday--thanks JY!) or if you have any questions.

Best regards,
Jeremy

Carl Byck

Exactly how does the TC control power? I assume via ignition, as fuel cut would be very dangerous. Any risk of engine damage on a rotary specifically? I believe there was a discussion on this recently, but I cannot find it now. What is the value, or function of WSS? Is full throttle shift compatible with all configurations? I am building an unlimited clas race car and am interested as well. TIA, Carl Byck

jeremy@matrix

On any electronically fuel injected car, the TC cuts power by cutting the injectors. On the rotaries I believe it cuts the primary and secondary inj's at the same time. Racelogic has a separate program that they use for rotaries so we just have to pass this along when we order the system.

Actually, a fuel cut isn't dangerous;
Question:- I am concerned that the system cuts fuel, and I have a highly modified turbo engine, which if it runs lean will cause instant damage. How safe is the Racelogic system on these types of engine?
Answer:- The Racelogic system works on individual injectors, and is designed only to cut out one whole injection pulse. The amount of fuel is not just decreased, it is completely removed for one stroke. This means the engine either receives a 100% complete amount of fuel or none at all. If it receives none at all, the spark has no effect, the mixture will not ignite, and therefore the temperature does not go up.

If your car doesn't have ABS, then you'll need to either retro-fit ABS wheel speed sensors(WSS) or fit the WSS's that Racelogic can provide.

I'm not sure if this is your question about the full throttle shift, but I'll give it a shot;
Full throttle shift is an option that you can add to any of the "systems" you see above. Does that answer it?

Unlimited class car? Awesome! I'd love to hear more...

If you have any more questions, feel free to fire away--I'd be happy to help.

Best,
Jeremy

Carl Byck

I guess I will defer to my mechaanic on the fuel cut, Since you posted the prices on the RX7 forum, I will assume any modifications necessary to work with arotary have been included(yes?). The car does not have ABS, so I would require the additional parts(what cost?) I'd like to hear from some of the "Rotary Gurus" on the fuel cut issue.
As for my car, I am early in the process, but the car will run in an unlimited road race class in N.Cali. The only regulations are ones regarding saftey equipment, and it may not be an open wheel car, that is it
My car is an 88FC, with a streetported 13bREW, E6k,TO4S (working on a GT40, or GT42 hybrid)Full supension ETC. Will have a GTC nose, Tripoint widebody, and 275-40-17 all around. The HP goal is 550-600rwhp. Carl

RICE RACING

The fuel cut on the race logic unit will be fine as there is special software written to control the 4 injectors, if you have more injectors from what I understand it will not work.

I am pretty sure that systems such as Autronic and Motec will blow the engine if run on injector cut as they will not account for the fact that Injector 1 and 3 feed two sides 1 & 2 + part of face 3 of the front rotor with a 50% overlap in cycle times (Injector 1 %100duty will feed two faces of the front rotor & Injector 3 will contribute %50 cycle time to the 2nd face and the other %50 to the third face of the front rotor (2&4 for the rear rotor face 1&2+%50of face 3), For this reason you cannot use fuel cut on other piston engine based traction control software, though they can be configured to cut ignition which would solve this problem but then there are other issues assosiated with keeping maximum fuel pumping through the engine as the racelogic site explains well.

So yeah from what I have been able to find out racelogic is the only company that has proven software that will run on a 13B running 4 fuel injectors, maybe the other major standalone ECU companies have software updates for rotary engines wanting to run the better fuel cut method ? I am not sure...but they will do spark cut definatley

jeremy@matrix

Hey Carl.

You are correct---the rotary software is no extra charge.

A set of 4 Wheel Speed Sensors is $405. However, you will have to come up with brackets to mount them. Perhaps you can rob something off another vehicle. That's what most of our customers do.

Let me know if I can be of any more help.

PS--550+ WHP.... Racelogic is definitely in your future.

Jeremy