Great to hear this.... You have PM.

Awesome news! I can't wait!

ha bert are you getting one ? i would like to see one run

will the matrix be a limited edition model or will it be mass produced by the v12?

Matrix will be a production engine, RB will still be making the V12 line of engines.

id like to try one and i think i will.

Can't finish a 20 minute mains
 

Need some advice here on my RB V12. My engine seem to not last a 20 min main, actually it would only run consistently for 5 to 6 mins and it would just flame out. Temp wise it's only running at 115C. Tried replacing the plug and it look like it solve the problem but problem comes back again. All the help will be much appreciated :nod: My goal is to at least finish a main :cry:

Thanks!
Roy

do you go in the pits at the 5-6 min mark,if not your running out of gas, a tank usually lasts 5-6 min in a .12.

OR

sometimes people set the low end needle too lean and have this problem

:nod:

Factory setting for v12:

low - 2.5 turns
high - 5 turns
mid - flush

*start with these settings and you will be fine :nod:

I've actual reset the thing to factory settings (also as suggested by extremehobbies 5 turns on the high side) Maybe adjusted the idle a little so it doesn't flame out.

Fuel wise, if you measure from the bottom of the tank I'd say I still have around 1/4" of fuel.

Thanks.

Do you, or maybe a race buddy, happen to have a spare fuel tank? Fuel lines are cheap so maybe replace that as well. It sounds like your tank is loosing pressure when the fuel is low. Just my opinion.

Anyone know if a tear in the rubber boot on the throttle body would allow air to leak in around the body itself? Could this be a cause for erratic engine behavior?

yes :nod:

Thanks Cap! I thought so! fortunately I own 3 RB engines & this boot is the same part # on all of them so I guess I'll be swapping it off one of the backups till the new part comes in. Thanks M8. Keep fingers crossed & maybe the R--- will stay away this weekend. :D :tire: :tire: