View Poll Results: Poll: How many degrees of timing are you running at WOT?
<23 degrees...or stuck on low-octane table
34
10.79%
24 degrees
19
6.03%
25 degrees
16
5.08%
26 degrees
45
14.29%
27 degrees
43
13.65%
28 degrees
86
27.30%
29 degrees
23
7.30%
30+ degrees
49
15.56%
Voters: 315. You may not vote on this poll
How much timing are you running at WOT?
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
N/A with 232/238 cam and ported 241's....
27* from about 2800rpm on up to redline. There were higher values in at one point, but dyno tuning revealed reducing timing down to 27* actually made more power.
27* from about 2800rpm on up to redline. There were higher values in at one point, but dyno tuning revealed reducing timing down to 27* actually made more power.
You guys wouldn't believe how many melt downs we see from to much timing
and no Knock Retard showing. Anyway, setting timing to the highest you can
without KR is just a crap shoot concerning HP and longevity. The correct
way to do this n/a is to run as much timing as you can until peak hp is
seen and no more. I'll bet a few of the guys running high timing are doing
so with no additional gains, but rather putting their motor in jeopardy.
I run 26° on my set-up currently N/A, and 14/18° on spray depending on
shot size. In my web I have a write up on pulling timing on the spray and
go into some detail why we need to pull timing while spraying. You guys
may get some insight on this issue, even n/a guys.
Robert
Last edited by Robert56; Dec 16, 2007 at 08:41 PM.
Robert you are correct the proof is in the pudding!
This is what happend to me, and never had any indications of knock using Hptuners.
Didnt change my timing after (bigger motor install) but I could hear a ping at high rpms. Redouce timing too 28* and from 32* and the car woke up immeaditly.
This is what happend to me, and never had any indications of knock using Hptuners.
Didnt change my timing after (bigger motor install) but I could hear a ping at high rpms. Redouce timing too 28* and from 32* and the car woke up immeaditly.
Timing I experimented with this on my LS1 AFR 205 head/cam with 11.2:1 and a 224/230 @ .050" XEr lobe Comp. I initially had the timing at 24 and thought it was conservative, later revisted the dyno and experimented with 27 to 29 degrees and gained nothing at all. I settled with the timing at 24 degrees for the bulk of the WOT.
I attached of pic of two dyno graphs overlaying one another with two different timing settings the one in blue was a solid 24 from 4K up and the one in red was 27 up to peak torque and then 29 from 4900 RPM on. There was virtually no increase, definitely nothing to warrant pushing the detonation envelope on street pump 93. When the timing was advanced the A/F did go slightly leaner (13.2:1 from 12.8:1 or so), and still didn't make any more power.
There was 0 KR recorded.
I attached of pic of two dyno graphs overlaying one another with two different timing settings the one in blue was a solid 24 from 4K up and the one in red was 27 up to peak torque and then 29 from 4900 RPM on. There was virtually no increase, definitely nothing to warrant pushing the detonation envelope on street pump 93. When the timing was advanced the A/F did go slightly leaner (13.2:1 from 12.8:1 or so), and still didn't make any more power.
There was 0 KR recorded.