after reading and reading theres 2 differnet versions when it comes to boost ans spark
1. add 0.3 per 1 psi
2. add 1 per 1 psi
so whats best use out of the 2 ???
thanx
whats best when using boost
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screamer69
- Experienced MS/Extra'er
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- Joined: Mon Jul 25, 2005 3:20 pm
- Location: peterborough ----uk------
whats best when using boost
2.0 8v turbo 10.7 standing 1/4@136mph on m/s fastest mk2 astra 8vt in europe !!!
2.0 turbo tigra 10.1 standing 1/4 @ 145 mph with problems
havent turned the boost up yet
2.0 turbo tigra 10.1 standing 1/4 @ 145 mph with problems
havent turned the boost up yet-
Minami Kotaro
- Experienced MS/Extra'er
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- Joined: Sun Sep 12, 2004 4:41 pm
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Start with 1 degree of retard per psi and work from there -- CAREFULLY!
Retarding timing too much can cause detonation just like too much advance.
Also keep a close eye on your air/fuel ratios.
Edit: for clarity.
Retarding timing too much can cause detonation just like too much advance.
Also keep a close eye on your air/fuel ratios.
Edit: for clarity.
Last edited by Minami Kotaro on Wed Jun 28, 2006 4:11 am, edited 1 time in total.
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jakobsladderz
- Experienced MS/Extra'er
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- Location: Ballarat, Australia
Remember that you need to *retard* the ignition (say) 1° per psi of boost, not advance it.. full boost ignition timing might be between say 15 and 20°BTDC whereas 100kPa (atmoshperic) timing might be say 28-35°BTDC..
Cheers,
Duncan
Cheers,
Duncan
Exeter: (noun) the nut or bolt always left over after putting something back together (Douglas Adams, The meaning of Liff)