Are you serious? Ive been running like 240-245

Yes. But i would stick to those temps until you have more than 2 gallons through it, then lean that sucker out.

Yea ive got like 1 and a half gallons on it

P5 Flames out after refueling
 

P5 with 9901/41021. What could be causing this issue, it happened to me three times during a 30 min. main event. Brand new plug, temps at around 225 deg consistently. a local racer told me it could be that the motor is too rich on the low speed needle, he is knowledgeable but I want to make sure before I start messing with it. He also recomended to use a C5 plug instead of the C6.

Thanks in advance, jb

Flame outs depend on the car. Mugen's tend to have a lot of flame out issues. Might try to lengthen your fuel inlet line..

I'd like to know where you get this info from?

I have a MBX6r and my buddies are running MBX6 MSPEC's and MBX7's and flame out's have never been a issue with our Mugens. I can say that our cars during races are some of the only one's that DON'T flame out. It's all about engine tuning, care and maintainence.

Andrew

Nova motors in general don't like an overly rich LSN. Also the C5 is a hotter plug so if you are running a little rich it could be the fact that your flooding the plug with the C6. My buddy had a similar issue over the weekend, changed to a C5 plug and after a quick retune all things were better.

MBX7's have a clunked tank which make flame outs much less likely. Mbx6's are notorious for having flame out issues (I run a 6r and haven't had any issues but know lots that have)

yep , too rich lsn , improper balance on the tune

Currently running a 9901/41021 combo on an Fusion X5 and a Nova BTT. Any thoughts out here on what will happen when I switch to a 2096/41001 combo? I'm thinking it will pull harder from mid to top, more top-end power and maybe a slightly softer bottom. Maybe better fuel economy?

+1. Nova's love a crispy bottom end!

Thanks to all that reply, I will work on leaning the LSN a bit.

jb

Need an opinion on pipe choice. Im breaking in a 21-4 btt wc and right now the only pipes i have to choose from are losi re-11 and nova 9101 with a 41021 header. which would be better

whats a 9101?

i meant 9901 ;)