Racelogic traction control review
03-22-2015, 10:59 PM
#1
Racelogic traction control review Hello all,
When I was reviewing this TC unit a few months ago I couldn't find much on it, especially on a turbocharged car at my power level. I got a good deal on a used controller from a member recently and just got it running. I'm pretty happy with the results.
I realize traction control isn't for everyone, but for a street car on all different conditions of streets, it works pretty well. It's considerably more effective than my efforts at boost by gear. I'm also hoping this will let me get more than 9 months out of a set of ET Streets. My tires are about done so I thought I'd throw together a quick video before replacing them. This is on 7psi which is probably somewhere in the 550-600 rwhp range.
The launch control is really meant for a manual car, but I just set it below my stall speed and it works well. I can only get a few psi out of it because I have it set at only 2200 rpms. Anything more than that and the rear tires start to get overpowered because my converter is really tight.
When I was reviewing this TC unit a few months ago I couldn't find much on it, especially on a turbocharged car at my power level. I got a good deal on a used controller from a member recently and just got it running. I'm pretty happy with the results.
I realize traction control isn't for everyone, but for a street car on all different conditions of streets, it works pretty well. It's considerably more effective than my efforts at boost by gear. I'm also hoping this will let me get more than 9 months out of a set of ET Streets. My tires are about done so I thought I'd throw together a quick video before replacing them. This is on 7psi which is probably somewhere in the 550-600 rwhp range.
The launch control is really meant for a manual car, but I just set it below my stall speed and it works well. I can only get a few psi out of it because I have it set at only 2200 rpms. Anything more than that and the rear tires start to get overpowered because my converter is really tight.
03-23-2015, 01:07 AM
#4
The system is pretty spendy at anywhere between $1200-1700 depending on how you option it. I partially justified the cost by slowing my consumption of $600 drag radials.
The system works by measuring wheel speed and dropping individual cylinders to reduce power until slip is no longer detected. It can be setup as a 3 or 4 channel system. My car has aftermarket spindles which came with C5 Corvette wheel speed sensors for the front, and I used the speed output sensor from my 4l80e for the rear. If you have a car with 4 passive style wheel speed sensors you can just tap into those.
The system works by measuring wheel speed and dropping individual cylinders to reduce power until slip is no longer detected. It can be setup as a 3 or 4 channel system. My car has aftermarket spindles which came with C5 Corvette wheel speed sensors for the front, and I used the speed output sensor from my 4l80e for the rear. If you have a car with 4 passive style wheel speed sensors you can just tap into those.
03-23-2015, 07:13 PM
#5
9 Second Club
Racelogic references undriven wheel speed vs driven wheel speed and works of actual slip targets.
http://www.racelogic.co.uk/index.php...l#how-it-works
03-23-2015, 08:35 PM
#7
I must admit, I don't know a lot about the Davis TC, but it appeared to be more of a straight line thing. I'm as concerned about going around corners and with this unit I can literally hold my foot to the floor and make a U-turn under boost and the back won't step out.
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03-24-2015, 03:35 AM
#8
9 Second Club
As above, the RL has been around for a very long time, and gives the driver a simple switch depending on the level of slip they wish to retain.
This means it can be idiot proof safe, or allow enough slip for the driver to have some fun and slide the car about.
It has been well proven over many many years, well before Davis even existed
That isnt to say Davis isnt very good at what it does to, as clearly it is. But as to how it would cope with varying driving styles and situations as well as differing traction from road to road...I just cant see how it would do it.
Everything they list seems essentially straight line only.
This means it can be idiot proof safe, or allow enough slip for the driver to have some fun and slide the car about.
It has been well proven over many many years, well before Davis even existed
That isnt to say Davis isnt very good at what it does to, as clearly it is. But as to how it would cope with varying driving styles and situations as well as differing traction from road to road...I just cant see how it would do it.
Everything they list seems essentially straight line only.
03-24-2015, 09:54 AM
#12
9 Second Club
There are no issues with dropping fuel vs spark. And certainly in modern cars with catalytic convertors, you must drop fuel otherwise you'd be dumping raw fuel into the car which would soon destroy it.
It's little different to an rpm limit on any modern car, they all cut fuel.
It isnt a cheap system, but it is designed to be largely idiot proof once installed and simple for the driver to make use of.
03-24-2015, 09:54 AM
#13
It doesn't drop spark, it drops an injector at a time to reduce power. It drops it for one complete cycle, so there isn't a lean issue - one cylinder simply takes a gulp of air for one cycle. It will drop multiple cylinders at a time if that much power reduction is needed. For that reason a methanol kit really shouldn't be used. I spoke w/Julio at Alky Control about it and he didn't seem to think there would be enough methanol to even light off if the injector stopped supplementing fuel, but I still didn't feel good about it and just removed my meth kit since I'm on E85 anyway.
03-24-2015, 10:39 AM
#14
Here are two videos I made of my Camaro and in them you can hear the Racelogic doing it's thing. I installed it a few months back and had to makeshift front wheel speed sensors that read off of the rotor since I have aftermarket spindles but it works well. With a stalled automatic it can be a bit finicky with effects of a torque converter in the mix and needs adjusting from the stock cut levels but it works well.
TC testing
Half mile event with TC on except for 2 races
TC testing
Half mile event with TC on except for 2 races
03-24-2015, 09:27 PM
#17
Here are two videos I made of my Camaro and in them you can hear the Racelogic doing it's thing. I installed it a few months back and had to makeshift front wheel speed sensors that read off of the rotor since I have aftermarket spindles but it works well. With a stalled automatic it can be a bit finicky with effects of a torque converter in the mix and needs adjusting from the stock cut levels but it works well.
TC testing
Half mile event with TC on except for 2 races
TC testing
Half mile event with TC on except for 2 races
05-22-2015, 07:34 PM
#18
Here are two videos I made of my Camaro and in them you can hear the Racelogic doing it's thing. I installed it a few months back and had to makeshift front wheel speed sensors that read off of the rotor since I have aftermarket spindles but it works well. With a stalled automatic it can be a bit finicky with effects of a torque converter in the mix and needs adjusting from the stock cut levels but it works well.
05-24-2015, 10:11 AM
#19
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You can also install it using the stock 4th gen ABS wheel speed sensors. All that's required is to splice into the ABS harness to get the wheel speed sensor signal and install the RaceLogic harness using 10k ohm resistors on each of the wheel speed signal wires. The RaceLogic software can be configured to use whatever pulses per revolution the wheel sensor creates. For the stock 3 channel ABS, it's 47 pulses per revolution on the front, 106 pulses per revolution on the rear.
The install manual and software can be downloaded from their website: http://www.racelogic.co.uk/index.php...action-control
The install manual and software can be downloaded from their website: http://www.racelogic.co.uk/index.php...action-control
05-26-2015, 10:00 AM
#20
Why did you need to use resistors? I didn't and the factory type ABS sensors read just fine with no problems.