So you wanna be a tuner? - Page 6 - RX8Club.com



Series I Aftermarket Performance Modifications Discussion of power adding modifications
Sponsored by: CARiD

Reply
 
 
 
Thread Tools Search this Thread Rate Thread
Old 08-12-2010, 01:52 PM   #126
Registered
iTrader: (38)
 
9krpmrx8's Avatar
 
Join Date: Jan 2007
Location: San Antonio, Texas
Posts: 33,227
Thanked 180 Times in 151 Posts
TX

Quote:
Originally Posted by MazdaManiac View Post
Not at all. There just isn't any time right now.

Gotcha, I think it could be a great resource for us to have, even post seminar.
9krpmrx8 is online now   Reply With Quote
Old 10-17-2011, 11:30 PM   #127
Registered
iTrader: (38)
 
9krpmrx8's Avatar
 
Join Date: Jan 2007
Location: San Antonio, Texas
Posts: 33,227
Thanked 180 Times in 151 Posts
Should this really be stickied still?
9krpmrx8 is online now   Reply With Quote
Old 12-22-2012, 04:01 AM   #128
Registered User
 
Join Date: Nov 2012
Location: England
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by BigOLundh View Post
MM,
I finally got a chance to read over the material... AND HOLY SH*T!!! I can't believe how valuable it was. I have a few questions I'll post up later, which you may want to see as questions coming from someone who knew nothing about tuning. Might help with your video.

and yes... let me know when the video is available... i'll be first in line with payment waiting.

-hS
yes you could post whatever questions you want i am always present here to answers these questions.....
Andwise is offline   Reply With Quote
Old 01-11-2015, 08:28 AM   #129
Registered
 
Join Date: Nov 2012
Posts: 49
Thanks: 0
Thanked 0 Times in 0 Posts
sorry to bring up an old thread but I had a couple of questions.
to reduce the ignition timing split, do you retard the leading or advance the trailing? and why?
4DRcoupe is offline   Reply With Quote
Old 01-11-2015, 12:17 PM   #130
Driving my unreliable rx8
 
Join Date: Oct 2012
Location: Alvarado, Tx
Posts: 2,051
Thanks: 0
Thanked 0 Times in 0 Posts
I think you'd be better off finding kanes tuning thread, but I've been really interested in this topic the past few weeks.

I would say it depends on what your goals are along with what you've already done with timing. You're n/a right? Have you bumped up any of your timing?

Reducing split is going to start a second flamefront in the engine and the 2 working toward each other will quickly increase combustion pressure. So just increasing trailing 1deg might be the equivalent of increasing leading several deg. And that could get dangerous quick. But i think theres a lot of power to be had by decreasing advance and decreasing split. That way you don't have as much pressure acting backward on the rotor before passing tdc. Then you would be able to get more of that pressure working toward your power stroke.

Ive found a post by Steve kan that says. The lower you set split the more power you'll get, with more split advance timing, with less split reduce timing.
logalinipoo is offline   Reply With Quote
Old 01-11-2015, 09:52 PM   #131
Registered
 
Join Date: Nov 2012
Posts: 49
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by logalinipoo View Post
I think you'd be better off finding kanes tuning thread, but I've been really interested in this topic the past few weeks.

I would say it depends on what your goals are along with what you've already done with timing. You're n/a right? Have you bumped up any of your timing?

Reducing split is going to start a second flamefront in the engine and the 2 working toward each other will quickly increase combustion pressure. So just increasing trailing 1deg might be the equivalent of increasing leading several deg. And that could get dangerous quick. But i think theres a lot of power to be had by decreasing advance and decreasing split. That way you don't have as much pressure acting backward on the rotor before passing tdc. Then you would be able to get more of that pressure working toward your power stroke.

Ive found a post by Steve kan that says. The lower you set split the more power you'll get, with more split advance timing, with less split reduce timing.
so rather than inceasing the trailing timing to reduce the split, it's better to reduce the leading timing instead...hmm...
by the way did anyone tried the max possible advance in timing for the trailing?
4DRcoupe is offline   Reply With Quote
Old 01-11-2015, 10:56 PM   #132
Driving my unreliable rx8
 
Join Date: Oct 2012
Location: Alvarado, Tx
Posts: 2,051
Thanks: 0
Thanked 0 Times in 0 Posts
I would find what i think is the max leading, then reduce 2 deg leading for every 1 deg of split.

Just a guess at a starting point. Have a egt or det phones.
logalinipoo is offline   Reply With Quote
Old 01-12-2015, 07:53 AM   #133
Registered
 
Join Date: Nov 2012
Posts: 49
Thanks: 0
Thanked 0 Times in 0 Posts
I'm still on the stock timing maps, thinking to adjust the timings to try but not sure where to start.
I would like to reduce my split as first try. will it be fine if I reduce all the stock 15 splits to 10 or less by reducing the leading advance?
4DRcoupe is offline   Reply With Quote
Old 01-12-2015, 12:17 PM   #134
Driving my unreliable rx8
 
Join Date: Oct 2012
Location: Alvarado, Tx
Posts: 2,051
Thanks: 0
Thanked 0 Times in 0 Posts
Well first off remember i don't really know anything about timing at all.

Id probably adjust from 7500 rpm to redline and 80pct load to max. Then just change it 1-2 deg at a time.

To me timing is the most important and dangerous aspect of tuning. It does directly vary with afr. So more fuel the more timing you can run. Generally the more timing you run, the more power you can produce. Although i personally think You will get more power in the 12.1-13.2 afr range. But at a greater risk of detonation.
logalinipoo is offline   Reply With Quote
Old 09-01-2015, 11:39 PM   #135
New Member
 
Join Date: Aug 2015
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by MazdaManiac View Post
Nah, I've been accumulating this stuff over the last few months as I produce the tuning video.
How do we get the video
boans305 is offline   Reply With Quote
Old 09-02-2015, 12:51 AM   #136
Koi no Ousama
iTrader: (25)
 
TeamRX8's Avatar
 
Join Date: Apr 2005
Posts: 19,757
Thanks: 0
Thanked 135 Times in 120 Posts
you don't, nobody else does either ...
TeamRX8 is online now   Reply With Quote
Old 09-02-2015, 03:00 PM   #137
New Member
 
Join Date: Aug 2015
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by TeamRX8 View Post
you don't, nobody else does either ...
Ya looked that way after reading through every page. What happen with it? Im new on the site
boans305 is offline   Reply With Quote
Old 09-02-2015, 04:11 PM   #138
Illudium Q-36 Space Moderator
iTrader: (1)
 
Kane's Avatar
 
Join Date: Jan 2007
Location: PCB
Posts: 6,345
Thanked 8 Times in 6 Posts
Kane is offline   Reply With Quote
Old 10-11-2017, 09:33 PM   #139
New Member
 
Join Date: Jan 2005
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by MazdaManiac View Post
Go check what Fred said in the ignition discussion thread.

The OEM PCM goes for up to 40 off-load and 23 to 30 on load with the split going from 15 to 8 in the same conditions.
Idle is -3 and 5 L/T.
At peak torque (and the most knock-prone RPM range around 6k), it goes as low as 19 with an 8 split.


Coming this Christmas to a PayPal near you!
Ignition timing is normally locked with the lead rotor being like piston 1 as far as what really makes sense to me, but I was bewildered by the timing light flashing when the engine is revved while looking at timing marks. It seems like an advance of -15 degrees might be something.
jkinard is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
COBB AccessPort Hunterkelley24 Series I Engine Tuning Forum 8 10-14-2017 10:36 PM
Greddy install build-Adaptronic yurcivicsux Series I Major Horsepower Upgrades 192 09-12-2017 10:54 PM
{ FS } 2007 STX Prepped Mazda RX-8 fourwhls RX-8's For Sale/Wanted 6 11-02-2015 01:25 PM
{WTB} Rebuild Kit XSTARSCREAMX RX-8 Parts For Sale/Wanted 0 09-20-2015 01:05 AM
how to properly downshift my mt rx8 teamdipngo New Member Forum 10 09-14-2015 02:47 PM


Tags
111, 3d, apex, bill, chart, club, cr, flame, front, ignition, lolachampcar, mazdamaniacs, obdscan, plot, rx8, timing, tuner, wanna

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 07:35 PM.


All content Copyright 2017 by Internet Brands, Inc.