Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
sjm autoprod
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Engine | Drivetrain | Powertrain Technical Discussions > Tuning / Diagnostics -- engine and transmission


Reply
 
Thread Tools
Old 05-14-2010, 08:11 AM   #35
06MonteSS
Account Suspended
 
Drives: 2006 Monte Carlo SS
Join Date: Jul 2009
Location: CT
Posts: 226
Quote:
Originally Posted by mekc57 View Post
I ordered a prediter, will be here tomorrow. What tune do you use with 92???? I keep hearing about 91 and 93. We have 92 in Oregon
install the Diablo Tune (which is the 93 octane tune), then just monitor/log for any knock retard... and use GOOD gas!
06MonteSS is offline   Reply With Quote
Old 05-14-2010, 09:41 AM   #36
RedJewel2SS
12.23s@113mph
 
RedJewel2SS's Avatar
 
Drives: 2SS/RS, A6, just a few bolt ons
Join Date: Jul 2009
Location: Houston, TX
Posts: 1,201
Quote:
Originally Posted by mekc57 View Post
I ordered a prediter, will be here tomorrow. What tune do you use with 92???? I keep hearing about 91 and 93. We have 92 in Oregon

yea seeing how little knock i got at WOT when testing 91 fuel with the 93 tune, i bet 92 octane will have minimal knock if any.

when you log at WOT, if you see any TKSR above 1 degree on the log, go into modify tune on the predator and remove 1 degree of "spark advance" and repeat until you get no TKSR. "there is only a 2-3 degrees difference in the 91 and 93 octane tune" (quote: 06MonteSS)

keep in mind you will see something when shifting so watch the log and make sure the knock you are recording is not at a shift point which is normal
__________________

RIP Cammie 7/15/2009 - 4/1/2011
RedJewel2SS is offline   Reply With Quote
Old 05-14-2010, 09:46 AM   #37
RedJewel2SS
12.23s@113mph
 
RedJewel2SS's Avatar
 
Drives: 2SS/RS, A6, just a few bolt ons
Join Date: Jul 2009
Location: Houston, TX
Posts: 1,201
Quote:
Originally Posted by Gunsmoke View Post
that's great to hear! but i thoght it said it will not harm 02 sensors? i just can't win.
it won't if you use it on track days only, but MMT which most octane boosters use to "boost" your octane will in fact damage emissions parts with regular use and in higher concentrations. it has been tested and proven.

the only way to get Lucas octane booster to work effectively is to use 1oz. per gallon of fuel which is just slightly more concentrated than their minimal requirement of one 16oz. bottle per 25 gals of fuel.
__________________

RIP Cammie 7/15/2009 - 4/1/2011
RedJewel2SS is offline   Reply With Quote
Old 05-14-2010, 09:48 AM   #38
RedJewel2SS
12.23s@113mph
 
RedJewel2SS's Avatar
 
Drives: 2SS/RS, A6, just a few bolt ons
Join Date: Jul 2009
Location: Houston, TX
Posts: 1,201
Quote:
Originally Posted by DSteck View Post
I never get concerned with KR if it's under 2º total taken out, because a) you won't feel it and b) it can typically be attributed to noise (something hitting the engine/exhaust, valve train noise, etc). The 8º taken out when giving throttle after coasting is possibly burst knock, and even C16 won't stop that from happening. There's a different between knock retard and burst knock retard. Knock retard is a result of actual knock events, and is a reactive solution. Burst knock retard is a proactive solution that pulls timing out during extreme engine load changes (read: steep throttle changes) in anticipation of knock.
i'll agree with ya, but i never saw any "burst retard" before when using the correct fuel grade with it's matching tune.
__________________

RIP Cammie 7/15/2009 - 4/1/2011
RedJewel2SS is offline   Reply With Quote
Old 05-14-2010, 10:00 AM   #39
DSteck
Account Suspended
 
Drives: 2006 Corvette Z06
Join Date: Feb 2010
Location: St. Louis, MO
Posts: 590
Quote:
Originally Posted by RedJewel2SS View Post
i'll agree with ya, but i never saw any "burst retard" before when using the correct fuel grade with it's matching tune.
Log Burst Knock Retard and Total Knock Retard, and you'll see a difference. Burst Knock Retard has absolutely, positively, without a doubt NOTHING to do with the gas. You could run C16 or 87, and the same throttle transitions will cause the same amount of burst knock retard.

Look above where you were talking about knock on a shift... That's burst knock retard.
DSteck is offline   Reply With Quote
Old 05-14-2010, 10:09 AM   #40
06MonteSS
Account Suspended
 
Drives: 2006 Monte Carlo SS
Join Date: Jul 2009
Location: CT
Posts: 226
Quote:
Originally Posted by DSteck View Post
Log Burst Knock Retard and Total Knock Retard, and you'll see a difference. Burst Knock Retard has absolutely, positively, without a doubt NOTHING to do with the gas. You could run C16 or 87, and the same throttle transitions will cause the same amount of burst knock retard.

Look above where you were talking about knock on a shift... That's burst knock retard.
correct ^ ^ ^
06MonteSS is offline   Reply With Quote
 
Reply

Thread Tools

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Official 1/4 Mile (V8) 2010+ Camaro Fast List Merc Dragstrip and Launch Techniques Discussion 3109 02-11-2016 08:07 PM
Diablo Question Dagon68 Tuning / Diagnostics -- engine and transmission 2 04-17-2010 11:42 PM
Lets play a game 2SSRS@Gen5diy Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 56 09-26-2009 10:08 AM
GMPP LNF Tune The_Blur General Automotive + Other Cars Discussion 22 01-07-2009 05:57 PM
LS3 goes 11`s Bonestock! GMRULZ Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 28 12-08-2008 10:10 PM


All times are GMT -5. The time now is 11:25 PM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.