How long to adapt to race gas 100 octane
Thread Starter
Member
Joined: Jan 2007
Posts: 238
Likes: 2
From: ca
2003 s600
How long to adapt to race gas 100 octane
I noticed my timing is being pulled big time at wot, it goes into +3 to +5. At cruising with no gas pedal movement it is -25 to -30 TDC. I also noticed a pinging sound for a second when I floor it. I have Kleemann tune so boost now goes to 22.3 psi max. I put in 10 galons of 100 octane 76 race gas with about 10 or more galons of 91 octane gas in tank, so total octane is around 95. Will timing advance with higher octane to get more power due to anti-knock octane level?
Thread Starter
Member
Joined: Jan 2007
Posts: 238
Likes: 2
From: ca
2003 s600
Bank 1 LTFT before adding race gas was +5%, bank 2 was +2%, when accelerating, bank 1 shoots up to +14% and bank 2 to +9%. Is this normal? After race gas added it is about the same, and timing still goes +3 when wot and boost is up to 22 psi. No effect on timing or noticable power increase yet. Intercooler pump is fine, IATs stay below 110F while driving.
