Notices
RX-8 Racing Want to discuss autocrossing, road-racing and drag racing the RX-8? Bring it here. This is NOT a kills/street racing forum.

Star Mazda recommendations for renesis

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 02-17-2021, 02:43 PM
  #1  
Registered
Thread Starter
 
Nadrealista's Avatar
 
Join Date: Feb 2011
Location: Here
Posts: 669
Received 30 Likes on 25 Posts
Star Mazda recommendations for renesis

good read.
two things that caught my eye:
1. they recommend to shoot for AFR of 13!?

Engine Vitals: Lambda
Lambda is the measure of the amount of oxygen in the exhaust stream. The value expressed is a percentage of the stoichiometric air/fuel ratio 14.7:1.
Air/fuel ratio can be calculated by multiplying the lambda value monitored by data system by 14.7
(ex: .90 Lambda translates as (.9 x 14.7 = )13.23 Air/fuel ratio
Operating Range = .87 - .91, aim for .89


2, they state that lambda sensor (primary O2 sensor on our cars) is wear item and should be replaced just like spark plugs as it looses sensitivity over time
Engine Vitals: Lambda continued
There are two methods of lambda monitoring: ECU or ADL (the ADL reads approximately .2 higher). Lambda bung location should be toward rear of pipe, 6” from muffler junction (be sure to accommodate for possible interference with the bellhousing). The depth of the sensor in the pipe should be so that the tip is flush with the inner wall of the tube.
Lambda sensor precision:
Sensor life
Sensors tend to wear out more quickly when
closer to header. These are consumable parts
much like the spark plugs and are
manufactured similarly

Full document here
Old 02-17-2021, 03:48 PM
  #2  
No respecter of malarkey
iTrader: (25)
 
TeamRX8's Avatar
 
Join Date: Apr 2005
Posts: 26,731
Received 2,015 Likes on 1,642 Posts
you’re like a decade late to that party, another 5 or more years to the original party since that’s the later revised version

it’s all been extensively discussed on this forum since then; yes, shoot for 13.1:1 AFR on gasoline fuel, don’t ever-rev, don’t let EGT be sustained over 1650*F

fwiw, the link is from the noob faq website; maybe you should do some more in-depth reading while you’re on there

one of my favorite vids, 270 bhp Renesis at full song


.
The following 2 users liked this post by TeamRX8:
kevink0000 (02-21-2021), Shaozhou Zhang (01-27-2023)
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ugabuga
Series I Engine Tuning Forum
6
07-08-2013 02:40 PM
logalinipoo
Series I Engine Tuning Forum
10
03-18-2013 02:09 AM
byez
Series I Trouble Shooting
0
06-02-2011 06:02 PM
DaveHelmig
Series I Tech Garage
0
11-19-2005 07:25 PM
AMUSE
Australia/New Zealand Forum
19
09-21-2004 05:53 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Star Mazda recommendations for renesis



All times are GMT -5. The time now is 01:22 AM.