Originally Posted by Uwiikz (Post 11252499)

Hi All,
this probably been asked for a thousand time, but I tried "search" and I couldn't get a definite answer.

What header/pipe combo would work best with Novarossi Bonito XLBS? Looking for good balance between torque, top speed and runtime. I am on Novarossi plus 4BTT right now and I already have 41021, 41020 header and 9901, 2096, 9886 pipe.

I am happy with the tunability and stability of my BTT, I could accelerate in an instant from 15 second dead stop, idle all day upside down or upright, never ever flame out during an hour main race, things that I couldn't do on an OS, but no matter what I tried and how much I spent on pipes I could never get it to have the pop I am looking for, I couldn't clear jumps that I could clear easily with my stock blue head OS XZB on 2060. The BTT is just wayyy too tame for my demand.

I know from this thread that 41001 header will give the BTT more pop I am looking for, but I can sell my BTT easy and since the local dealer is having crazy sale, with the money I get from my used BTT and for just a little more I can get a brand new Bonito XLBS with new header and pipe of my choice. I assume a BTT with 41001 header will still be not as quick as a Bonito, did I assume right? Clocked BTT is not an option on this side of the world.

I know it is a heresy to talk about OS here, but I need honest opinion. Durability aside, but how do you compare stock Bonito XLBS and OS XZB Speed? Pop Off the line, mileage, top speed....

TIA

Originally Posted by yollie (Post 11254545)

1 3/4 still way too rich with your ambient. How about mine I think even bottomed LSN wouldnt get me the right tune

Should change my carb soon what will suggest!

41021 = 41030 rite...

Originally Posted by fung_kyle (Post 11255736)

Also, I hope I'm not ruining my engine, but my engine ruined a glowplug on monday. The coil was crooked when I removed it.

Thanks

Originally Posted by ben73 (Post 11255111)

did you try going to a 7.5mm restrictor maybe it will suit you more and give you the power you are after

Originally Posted by fung_kyle (Post 11255736)

Also, I hope I'm not ruining my engine, but my engine ruined a glowplug on monday. The coil was crooked when I removed it.

Thanks

Originally Posted by sickpuppy1 (Post 11256165)

If you read the tuning bible at the top of the Engine Section, several paragraphs down, it has an area on how to read glow plugs. A slightly warped coil is a lean condition and a severely warped or broken coil is sign of VERY lean condition....FYI
The tuning bible is a good read and a great way to learn and confuse yourself too! Excellent stuff really.

Originally Posted by 22Racer (Post 11257561)

I did some measuring on some different plugs today. Os, Voodoo, Od, and Nova were all very close on angle and diameter at the tip. The only difference being the relief of the threads on the tip end. I had a friend send me a newer Nova plug as the one I had was a few years old, when I get it I will do a full report.

Rex

Originally Posted by Eastside777 (Post 11258150)

I was just going to ask that same question about glo plugs. I cant seem to read the numbers on my glo plug to replace it. The motor is a plus 4 and my local hobby shop only has os plugs. What is the best option when it comes to replacing the glo plug?

Originally Posted by 22Racer (Post 11257561)

I did some measuring on some different plugs today. Os, Voodoo, Od, and Nova were all very close on angle and diameter at the tip. The only difference being the relief of the threads on the tip end. I had a friend send me a newer Nova plug as the one I had was a few years old, when I get it I will do a full report.

Rex