effects of timing changes on a rotary
03-20-02, 04:21 PM
#1
Full Member
Thread Starter
Join Date: Jul 2001
Location: MA
Posts: 242
Likes: 0
Received 0 Likes
on
0 Posts
effects of timing changes on a rotary
Can anyone give some references to documentation on the effects of timing changes for rotaries?
Solid data in relation to turbo charged applications is a plus.
Heresey is of no use to me.
Solid data in relation to turbo charged applications is a plus.
Heresey is of no use to me.
03-22-02, 04:06 AM
#2
Junior Member
Join Date: Mar 2002
Location: South Australia
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
What type of engine are you talking about..FD or FC turbo.
Generally as a rule 18 degrees total ignition timing up to 15 psi with 95 octane fuel is O.K if you have good air temps and good mixtures. 18 degrees total versus 12 degrees total under boost is generally worth 8 rw KW or 16 engine HP on a standard FC turbo.
Generally as a rule 18 degrees total ignition timing up to 15 psi with 95 octane fuel is O.K if you have good air temps and good mixtures. 18 degrees total versus 12 degrees total under boost is generally worth 8 rw KW or 16 engine HP on a standard FC turbo.
03-27-02, 07:58 PM
#3
Full Member
Join Date: May 2001
Location: 4th Quadrant
Posts: 212
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by 1000HP20B
What type of engine are you talking about..FD or FC turbo.
Generally as a rule 18 degrees total ignition timing up to 15 psi with 95 octane fuel is O.K if you have good air temps and good mixtures. 18 degrees total versus 12 degrees total under boost is generally worth 8 rw KW or 16 engine HP on a standard FC turbo.
What type of engine are you talking about..FD or FC turbo.
Generally as a rule 18 degrees total ignition timing up to 15 psi with 95 octane fuel is O.K if you have good air temps and good mixtures. 18 degrees total versus 12 degrees total under boost is generally worth 8 rw KW or 16 engine HP on a standard FC turbo.
Is this with firing the leading and trailing plugs together (no split)?
04-03-02, 10:46 PM
#4
Lives on the Forum
There are several FSAE papers out on this subject.  I dunno where to get them, but the FSAE website might be a start.
We have the Cosmo internal manual from Mazda.  It has the stock ignition maps in it.  NO, I'm not giving these away.
-Ted
We have the Cosmo internal manual from Mazda.  It has the stock ignition maps in it.  NO, I'm not giving these away.
-Ted
04-04-02, 02:24 PM
#5
Addicted to Track
Join Date: Jan 2002
Location: NC
Posts: 903
Likes: 0
Received 0 Likes
on
0 Posts
May not be what you're looking for, but check out the 3rd Gen Archives. There's a post with a title along the lines of "Help me learn to tune" that has some hard numbers on timing.
Thread
Thread Starter
Forum
Replies
Last Post
stickmantijuana
Engine Management Forum
11
11-09-15 01:15 PM
CaptainKRM
2nd Generation Specific (1986-1992)
14
08-26-15 09:52 PM
