how much timing on a built z6
02-27-2006, 08:26 AM
#11
1.5 BAR
Thread Starter
Join Date: Sep 2004
Posts: 1,460
Re: how much timing on a built z6
it was like 28* to 5psi. then it backed down to 24 to 20psi. I just wanted to get the turbo spooled up quicker, so i was hoping i could run mid 20's to 5-8 psi. from 10 on, i have 19.something
My cr is probably around 8.8-9:1 Running 19 psi.
My cr is probably around 8.8-9:1 Running 19 psi.
02-27-2006, 10:21 AM
#12
1.5 BAR
Join Date: Nov 2003
Posts: 771
Re: how much timing on a built z6
Originally Posted by Foowee
Doc, timing should be retarded before torque peak. After you reach this point where maximum cylinder filling occurs, you can then advance the timing to gain ponies.
02-27-2006, 01:48 PM
#13
0.0 BAR
Join Date: Feb 2003
Posts: 0
Re: how much timing on a built z6
Retarding timing causes faster spool, right until your exhaust valves glow cherry red and preignition sets in. Advancing timing focuses the burn inside the combustion chamber, until you begin the burn so early that the peak pressure occurs at a rod angle with poor leverage that the piston cant move down quickly enough (act as an expander) to keep pressures from rising and turning burn into detonation and destroying the engine. Play around between those points to find best throttle response and spool.
02-27-2006, 07:36 PM
#14
3.0 BAR
Join Date: Mar 2003
Posts: 21,479
Re: how much timing on a built z6
Originally Posted by Foowee
Doc, timing should be retarded before torque peak. After you reach this point where maximum cylinder filling occurs, you can then advance the timing to gain ponies.
I think you misunderstood me. I'm talking about the boost retard on Uberdata.....__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
03-01-2006, 03:07 AM
#15
0.0 BAR
Join Date: Dec 2002
Posts: 0
Re: how much timing on a built z6
Originally Posted by Dr.Boost
Are you sure that 30* wasn't BEFORE boost retard was set? I got a map from an unmentioned "tuner" on here and it had the timing set at 29* at the top of the map. 
That program is known has the headgasket pooper
Thread
Thread Starter
Forum
Replies
Last Post
sleeplsm
Turbo Parts For Sale
47
03-13-2007 06:54 PM
5thgencivickid
Turbo Parts For Sale
26
04-11-2005 09:35 PM
johndoe83
Forced Induction
0
03-02-2004 06:51 PM
