Originally Posted by brc358

The 353 engines are great, the Novarossi 12+3 modified, Mega motors, or if you want to save a little money and still have a competitive engine, the JL tuned Red Dots are great.
I have had multiple of each engne<other than the Mega> and have had nothing but great results.
I had a 12+3 modified in one of my MTX4R cars, and it was by far the fastest 12 size engine I have ever seen. Still swear by the 12+3 modified. I bought the factory tuned 12+3C and then had it modified even more by Fusion Motorsports. That engine was an animal. Too bad you are just now needing an engine, as I sold 5 or 6 engine less than a month ago, and one of them was the modified 12+3

Originally Posted by mugenize1

Is this the engine your talking about.

Originally Posted by brc358

Basically, but I was using the 12+3 port tuned.<plus had it modified>
It is also just as important to use the correct pipe, header, clutch set-up
I was using the 2053 pipe<also called the baseball bat pipe due to the shape of the pipe>matching header, and an Orion clutch spring.
This combination worked Great for me. Extremley fast, and pulls hard all the way through the power band. Best 12 size engine I have ever had.

Originally Posted by brc358

Basically, but I was using the 12+3 port tuned.<plus had it modified>
It is also just as important to use the correct pipe, header, clutch set-up
I was using the 2053 pipe<also called the baseball bat pipe due to the shape of the pipe>matching header, and an Orion clutch spring.
This combination worked Great for me. Extremley fast, and pulls hard all the way through the power band. Best 12 size engine I have ever had.

Originally Posted by asw7576

What nitro percentage and fuel brand ?

Originally Posted by Bishop

I put a brand new Mugen 4mm chassis on my MTX the other day, just fitted the engine today, and found the clutch bell now won't come off without removing the engine again, Mugen do some strange things.

Originally Posted by Seisick

just dremel the chasis a little bit and that should be enough

Originally Posted by brc358

I use Powermaster 30% in all my cars.

Call Kamikaze Toys and Hobbies in Cerritos Ca. and speak to Sam.
He has the engines,pipes, headers, . He carries many different brands and will help you out.

Originally Posted by geeunit1014

The TZ will be okay on small to med. tracks where you dont get to stretch the motor out so much, but if your on a bigger track and you have the bank, its Nova or B main

Originally Posted by mugenize1

If the chassi is from Mugen we should not have to cut anything I would think. This is the first time I hear that you need to cut, unless your using some other clutch set that is not Mugen.

Originally Posted by mugenize1

I like Byron fuel never had a problem with this fuel. I use it on my MBX6T with a .28 GRP and runs great and on my MRX4-X with also a GRP .21

Originally Posted by brc358

I have tried Byrons fuel also. Had no issues with it at all. I found that for me the Powermaster fuel seemed to run a little cooler, cleaner, but the run time was about the same with the Powemaster. Pretty much a toss up on the two.
I have also tried White Lighting, Mugen, and a couple other ones, but seemed to always go back to the Power Master. I have used this fuel for about 4 or 5 years now,and during tear down and rebuild, the piston, and internal parts were very clean. Just a matter of choice.