LS1TECH - Camaro and Firebird Forum Discussion

Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

Tach question

Thread Tools
 
Search this Thread
 
Old 08-16-2006, 03:05 PM
  #1  
Staging Lane
Thread Starter
 
x-pauliber's Avatar
 
Join Date: Nov 2005
Posts: 73
Likes: 0
Received 0 Likes on 0 Posts

Default Tach question
I'm running my factory tach in my 70 camaro and I haven't got the computer switched over to 8 cylinder yet, so roughly how far off is my tach gonna be?
x-pauliber is offline  
Reply Like
Old 08-16-2006, 05:21 PM
  #2  
Conversion master
iTrader: (1)
 
70 LS1's Avatar
 
Join Date: Dec 2001
Location: Gig Harbor, Wa
Posts: 861
Likes: 0
Received 1 Like on 1 Post
Default
Its going to read half. So if you are running 4000 RPM it will show 2000 on the tach. The PCM outputs 2 pulses per revolution where a normal V8 does 4 per revolution.
70 LS1 is offline  
Reply Like
Old 08-16-2006, 08:37 PM
  #3  
TECH Junkie
iTrader: (18)
 
LS1MCSS's Avatar
 
Join Date: Jan 2006
Location: Dover, Arkansas
Posts: 3,831
Likes: 0
Received 8 Likes on 7 Posts

Default
Dakota Digital makes an interface box that will also change it for you.
LS1MCSS is offline  
Reply Like
Back to Subforum
Conversions & Swaps
View Next Unread
Those wanting to use cobra t56 in fox mustang




Advanced Search

All times are GMT -5. The time now is 12:59 PM.