Search found 50 matches

by RPM
Wed Dec 24, 2014 5:25 pm
Forum: Data Logging - Randy McMahon RPM Performance
Topic: MSD Can-bus Data
Replies: 6
Views: 1571

Re: MSD Can-bus Data

You can read the actual ignition timing with a tach timing module from Electrimotion.com. The timing line from the grid shows what it was supposed to be. (If everything is ok, they will be the same) The module will output an analog signal that can be read into your data logger.
by RPM
Wed Dec 24, 2014 9:07 am
Forum: Data Logging - Randy McMahon RPM Performance
Topic: MSD Can-bus Data
Replies: 6
Views: 1571

Re: MSD Can-bus Data

In order to read the Grid, the programmer would need detailed information from MSD regarding the instructions and data format. Since MSD owns Racepak, that information will probably not be released to competitors. Unless that is made available, you will need to download the Grid seperately. What inf...
by RPM
Mon Aug 04, 2014 9:00 am
Forum: Data Logging - Randy McMahon RPM Performance
Topic: RPM questions
Replies: 2
Views: 1162

Re: RPM questions

The EGT is probably shorting to the body of the probe or the braided line. That will make it read low, usually in the negative range. If the Fast, O2 output is between 0 and 5 volts, you can log it in the data logger. All you need is an analog cable and a connector to put on the signal line from the...
by RPM
Tue Jul 30, 2013 10:30 am
Forum: Chassis and Suspension
Topic: Tire Shake Controller
Replies: 0
Views: 3526

Tire Shake Controller

We are finishing up a new tire shake controller, and need some cars in the central US area to complete the testing. If you have frequent tire shake, and would be willing to help us finish the development of the controller, please email me at rpmperformance@cs.com. Randy McMahon, RPM Performance Prod...
by RPM
Tue Feb 05, 2013 12:15 pm
Forum: Data Logging - Randy McMahon RPM Performance
Topic: Digital dashboard
Replies: 22
Views: 11886

Re: Digital dashboard

Hello Everyone, The work on our new Digital Dash is going well. We expect to have the production parts by Feb 7, and will begin limited production for field testing. We are getting a lot of requests, so if you want to get your name on the waiting list for the dash, please call. RPM Performance 405-4...
by RPM
Thu Oct 25, 2012 11:39 am
Forum: Data Logging - Randy McMahon RPM Performance
Topic: Digital dashboard
Replies: 22
Views: 11886

Re: Digital dashboard

Hi Guys,

Sorry for the delay in finishing the new Digital Dash for the RPM Data Logger. Expecting it to be ready for testing by Jan 2013.

Randy
RPM Performance
by RPM
Wed Aug 22, 2012 8:57 am
Forum: Data Logging - Randy McMahon RPM Performance
Topic: Accelarometer not working
Replies: 3
Views: 1191

Re: Accelarometer not working

Hi Don,

Just send it to us and we will take care of it, no charge.

Regards,

Randy
by RPM
Fri Sep 09, 2011 5:28 pm
Forum: Data Logging - Randy McMahon RPM Performance
Topic: Ford 9" drive shaft sensor RPM logger?
Replies: 3
Views: 2130

Re: Ford 9" drive shaft sensor RPM logger?

Sorry for the delay.

You can download our software from rpmperf.com. It has some examples in it that can be opened for viewing.
by RPM
Mon Feb 14, 2011 8:50 am
Forum: Data Logging - Randy McMahon RPM Performance
Topic: Ford 9" drive shaft sensor RPM logger?
Replies: 3
Views: 2130

Re: Ford 9" drive shaft sensor RPM logger?

The RPM data logger uses a 4 magnet collar. We can also modify the program to work with up to 8 magnets on request. We don't have an 8 magnet collar, and adding 4 more to our collar won't be practical because the position of the four magnets would force added magnets to be where the collar splits. I...
by RPM
Fri Apr 16, 2010 5:09 pm
Forum: Data Logging - Randy McMahon RPM Performance
Topic: randy i need mud help
Replies: 7
Views: 1936

Re: randy i need mud help

Sorry for taking so long to answer. We have done data loggers for mud racing, but the system is not waterproof. Most mud racers put the computer in a waterproof enclosure. It can be as simple as a tupperware box with a snap on lid. The systems we have on mud race vehicles are performing well. The se...
by RPM
Tue Jan 19, 2010 2:15 pm
Forum: Data Logging - Randy McMahon RPM Performance
Topic: Digital dashboard
Replies: 22
Views: 11886

Re: Digital dashboard

Hello Again, Good news. The NHRA is now allowing digital dashes driven by data loggers in sportsman classes. Also good news. We have found a manufacturer that can make the custom LCD display the way we want at a reasonable price. Best news. We are developing a Digital Dash for the RPM Performance, D...
by RPM
Tue Dec 29, 2009 11:46 am
Forum: Data Logging - Randy McMahon RPM Performance
Topic: Digital dashboard
Replies: 22
Views: 11886

Re: Digital dashboard

We have been looking into the dash proposition for some time, and there is one major stumbling block. According to the NHRA rules, the digital dashes that are displaying information provided by a data logger are not legal in sportsman classes. General regs 9:2 "the transmission or display of any veh...
by RPM
Tue Dec 08, 2009 1:13 pm
Forum: Data Logging - Randy McMahon RPM Performance
Topic: replacement O2 sensor
Replies: 6
Views: 2192

Re: replacement O2 sensor

Sorry, it is oxygensensor.net, then select Wide Band O2
by RPM
Wed Dec 02, 2009 1:41 pm
Forum: Data Logging - Randy McMahon RPM Performance
Topic: replacement O2 sensor
Replies: 6
Views: 2192

Re: replacement O2 sensor

Wire lengths are not specified, but there are several sources for the LSU 4.2 sensor you listed. One of the lower costs is at oxygensensors.com ($49.00) As to not having a connector, you need to know the specifics of the controller you are using since some controllers rely on the calibration resisto...
by RPM
Mon Jun 08, 2009 9:26 am
Forum: Data Logging - Randy McMahon RPM Performance
Topic: Choosing a Data Logger
Replies: 18
Views: 4886

Re: Choosing a Data Logger

Jason, The symptoms you explained say that the problem is in the data system. If you still have the system on the car, there are a couple things we need to check. If the probe element has shorted to the tube, it can cause offsets in the reading. If you can call me when you can connect to the system ...