mugenb46

iTrader: (4)

Murnan YGPM

Proteus

Rev...oh yes it can. My engine did want to just keep on going. This motor is insane. I've heard of peope using Novarossi carbs, but have had no problems with the Sirio carb.

Hey Uriah, even @ 16/22 on my RRR, I still think that might be to high for our track, especially how RPM-ish the motor is. I did try the 16/21 combo but was afraid to let it unwind. Now that my motor is fully broken in (1 1/2 gallon) I think I'll try it next weekend.

One note: Something strange happened to my motor. Right before we had a passing rain shower. I was getting ready to shift into second gear and it felt like the motor just slowed down. Everything was just slow all of a sudden. For a second I thought I blew the motor. I pulled the whole motor to inspect and found nothing wrong. (BTW, I did change the conrod after 1 gal.) So I found that I had to lean out the motor another 3/4 turn. Even then I was only running 220 deg. I don't believe the needle would back out that much. I also changed the glow plug. What gets me is that I've had to adjust the needle because of humidity and time of day (morning/night) but only in 1/16 to 1/8 increments if that. Never had to go 3/4 turn. So, is this something that I have to worry about?

mugenb46

iTrader: (4)

murnan

can you tell me if you have done any picco roar leagal 12s. I know there not a high priced motor but i have ran one in a offroad truck and was wondering if you may have had good results after modding.

barclayrc

It would be very interesting to see a Murnan Modified CRF engine ? If the power is 1,19HP stock and beat the fully tuned engines what would be a Murnan Team Orion CRF engine 1.25 ? 1.30 ?

mugenb46

iTrader: (4)

ya have those even been released, very unique design. it will be cool to see what he can do to those.

Racing4Evo

iTrader: (2)

How old is the motor? It sounds like it just finished braking in when it richens up a lot for no apparent reason.

Proteus

It's not too old. About 2 weeks old. That's what I figured that it just finished breakin in. I guess I have re-tune it again this weekend. I'll keep you all posted.

stefan

EdwardN has published the timing numbers of the CRF. If those are correct, the motor is already at the limit.

2Fast4U2

Uriah, Sent you a PM about a piston and Sleeve for a modded X12. I have one of the first X12's you did, 2 years ago. Finally wore it out. Heard that they don't sell teh X12 piston/Sleeve anymore. Any truth to that?
If i can get one let me know? Thinkin of getting a .12 ninja when they get here. Know anything about those?

Thanks

Tim

rocca30

uriah any updates on the ninja motor? did you break it?

Grinder

iTrader: (2)

What's up? I managed to break the rod in my Ninja R01. It broke at the crank pin causing catastrophic engine damage.

no4hitter

iTrader: (5)

uriah, What pipe works best with the 35 plus 21 and gets decent fuel milage?

Riketsu

iTrader: (34)

How many gallons got through before breaking it? Or were u trying to make it break on purpose to see how much abuse it could handle?

Corse-R

Uhm... you asked what I wanted to ask to Uriah... here, we're quite satisfied with the overall quality and performance of the Ninja R01.

Any photos of the carnage?

Grinder

iTrader: (2)

I got about 2 gallons through it. I was pushing the engine too hard. I was not trying to break it, but I was pushing it as hard as it would go. I was actually warming the engine up getting ready to start my qualifying heat when the rod snapped. The car was in my hand when it went. It made a very violent jolt. 30K
to 0 revs instantly! I was probably revving the engine too high with out a load on it.