Just been out setting up the new gtt.
Std engine, 14lb boost at carb top, actuator minimum pressure
On first check with wideband on the afr's were 14's in mid range on wot/peak boost going to 12.5 at the top of the rev range (totally std jetting). Suprised it didn't blow up a long time ago to be fair. I always thought the std jetting was good for this amount of boost?
Ive increased the 2nd stg to 1.2mm as im aiming for maximum fuel economy. Afr's of high 12's in mid range going to 12.1 at 5k+ rpm.
I have a dilemma, will taking the 2nd stg out to 1.3 sort out my mid range fuelling? (don't want to ruin the carb body by going too big as its mint condition)
Fart about reducing the air corrector at this level of boost?
Or finally pikey the main up to 125mm, ive got one kicking about somewhere.
Thoughts all?
Also tuning came to an epic end tonight when me top rad hose decided to pop a hole in it ten mile from home. No tools, fone went flat & forgot to pack a torch. Only had half a litre of water in boot, really had to limp it home, thought these days had gone long ago