DIY PROM Do It Yourself PROM chip burning help. No PROM begging. No PROMs for sale. No commercial exchange. Not a referral service.

Going to use LM1 but no rpm converter.

Thread Tools
 
Search this Thread
 
Old 07-22-2007 | 03:31 PM
  #1  
Steve40th's Avatar
Thread Starter
Member
 
Joined: May 2006
Posts: 157
Likes: 1
Going to use LM1 but no rpm converter.

I am going to be useing an LM1 a friend at my new work has. My question is, is the data really valid if no rpm etc is with it?
Can I sync up my TTS Datamaster and hit "record" at the same time and ge a good idea of what it is doing?
Alvin did a fantastic tune on it(but I never had wideband for driving around and WOT((WOT was done on dyno and was I believe 12.7 to 1)), and now that I found my vacuum leak at my IAC, I want to drive with the LM1 and get valid data that can be used to fine tune the Vette?
1993 LT1 with 396 cu inch engine.
Thanks in Advance.
Old 07-22-2007 | 11:52 PM
  #2  
RednGold86Z's Avatar
Supreme Member
20 Year Member
iTrader: (1)
 
Joined: Mar 2000
Posts: 1,692
Likes: 1
From: Corona
Car: 92 Form, 91 Z28, 89 GTA, 86 Z28
Engine: BP383 vortech, BP383, 5.7 TPI, LG4
Transmission: 4L60e, 700R4, 700R4..
Axle/Gears: 3.27, 2.73
Re: Going to use LM1 but no rpm converter.

I find it's easy to sync, if there's a few DFCO points at the beginning and end of the logs. I think the LM1 time scale is out of whack though, so recreate it with an equation, and tweak the scale interval until it fits your other data. Or just stretch separate graphs to make it all fit evenly.
Old 07-23-2007 | 12:14 AM
  #3  
Steve40th's Avatar
Thread Starter
Member
 
Joined: May 2006
Posts: 157
Likes: 1
Re: Going to use LM1 but no rpm converter.

thanks
Old 07-23-2007 | 06:11 PM
  #4  
Guest
Guest
 
Posts: n/a
Re: Going to use LM1 but no rpm converter.

The LM-1 and the factory ECM dont record at the same rate so the data wont line up unless you make some sort of adjustments to it.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
84LsxZ28
Transmissions and Drivetrain
3
05-17-2020 03:21 PM
thekurlyone
Tech / General Engine
1
09-30-2015 01:54 PM
Damon
Tech / General Engine
8
09-26-2015 05:29 PM
89fast5oh
Exhaust
2
09-08-2015 10:55 AM



Quick Reply: Going to use LM1 but no rpm converter.



All times are GMT -5. The time now is 07:20 AM.