Microtech Area is for discussing Microtech systems

Microtech MT4 and ignition timing

Old 07-17-07, 06:40 PM
  #1  
long live the monster BP
5 Year Member
Thread Starter
 
NZ_87_TURBO's Avatar
 
Join Date: Nov 2005
Location: New Zealand
Posts: 483
Likes: 0
Received 0 Likes on 0 Posts
MT4 and ignition timing

Hey guys,

got the MT4 and its all good. Having some thoughts about the stock ignition system on my 87 t2. Ive got a large extended port and have been told i need to advance the timing manualy via the CAS. Have got a timing gun etc so how much should i advance it by?
NZ_87_TURBO is offline  
Old 07-17-07, 08:05 PM
  #2  
Rotary Freak
iTrader: (8)
 
rx72c's Avatar
 
Join Date: Jun 2003
Location: Australia
Posts: 2,608
Likes: 0
Received 0 Likes on 0 Posts
advance it to 20 degrees.
how much boost you going to run?

if your going to run 20psi put it at 5 degrees.

If your going to run 10psi leave it at 20. etc.
it all depends on boost
if its NON turbo put it at 30 degrees.
rx72c is offline  
Old 07-17-07, 11:59 PM
  #3  
long live the monster BP
5 Year Member
Thread Starter
 
NZ_87_TURBO's Avatar
 
Join Date: Nov 2005
Location: New Zealand
Posts: 483
Likes: 0
Received 0 Likes on 0 Posts
IM gona run 12-13psi, got a hybrid to4b Vtrim turbo but still running the stock top mount so cant really do to much. i was running 11psi fine before i got the motor ported, although it had a mild port before. Now im running 680cc secondarys also
20degrees advanced you recon? so 20deg ATDC or 20 deg advanced past the 1st timing mark?

Last edited by NZ_87_TURBO; 07-18-07 at 12:23 AM.
NZ_87_TURBO is offline  
Old 07-20-07, 05:40 AM
  #4  
Rotary Freak
iTrader: (8)
 
rx72c's Avatar
 
Join Date: Jun 2003
Location: Australia
Posts: 2,608
Likes: 0
Received 0 Likes on 0 Posts
20 degree past the first timing mark which is -5 degrees will put you at 15 degrees which is ideal for around 15psi.
rx72c is offline  
Old 07-22-07, 02:24 AM
  #5  
long live the monster BP
5 Year Member
Thread Starter
 
NZ_87_TURBO's Avatar
 
Join Date: Nov 2005
Location: New Zealand
Posts: 483
Likes: 0
Received 0 Likes on 0 Posts
Thanks, I brought a haltech so no more stuffing around
NZ_87_TURBO is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
C. Ludwig
Single Turbo RX-7's
49
01-30-19 06:31 AM
alphawolff
1st Generation Specific (1979-1985)
17
11-17-15 05:57 PM
befarrer
Microtech
3
08-22-15 05:52 PM
Joe428
1st Generation Specific (1979-1985)
16
08-19-15 06:24 PM


Thread Tools
Search this Thread
Quick Reply: Microtech MT4 and ignition timing


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: