2014年4月4日 · We baselined the performance of the stock YZ450F engine with FMF 4.1 exhaust system and TwinAir filter. We got about 48 horsepower. After MMAD development, we achieved over 60 horsepower. The basic MMAD package included his signature 0-2-0 ported head, Lightspeed cams, and a high-compression stock bore piston.

2010年10月23日 · What style porting do you guys have and what do you like. I really like the idea of his +1 valves but I just don't know if I want to spend $1,200+ on a crazy set up. For a 480cc 14.25:1, 42mm carb, Web cams, FCI, JSR, would a race port be a good choice for an all around Dune rider that likes to go fast.

2014年2月26日 · Just curious as to how much a build like that cost? 2010 Bill Ballance edition 450x. Voodoo hvp, 08 intake cam, FCI, MSD, slhg mod, Yoshimura RS-2 exhaust, 1000hp at the front wheels. Its not as bad as you would think. 2012 YfzR Build list.... Well easier said this way. Stock frame, Ummm stock spindles. 2012 YfzR Build list....

MMAD 4-Stroke Horsepower. Mummert Machine And Development . 619-562-6623. Honda TRX-450 Yamaha YFZ-450F Suzuki LTR-450. Multiple winner of 4-Stroke Wars Event at Glamis, Pismo and Dmont Dunes. Superflow Cycledyn 250 ATV Dyno. SUZUKI LTZ-400 with Stage 1 kit. 39% increase in power! ...

2018年7月24日 · Blake has provided here a list of the performance parts and accessories added to his Mean Green Oregon Coast Duner. The Accent lighting is what gives it a bit of a glow in the side view photo. PROJECT YAMAHA YFZ450. BLAKE’S YFZ450 SPECS: OEM WR450 Dirt Bike Crank. Kenz Cycle Tech 121 Head. MMAD 14:1 Piston. …

2010年6月6日 · MMAD! without a doubt Geoff Mummert is the YFZ porting genius you're looking for. he isn't cheap though. if you want the baddest hillshoot or drag race yfz and money isn't an option, this is your option. KCT is another great option, top quality work there. KCT is going to build my yfzR motor when i get around to it.

2012年2月21日 · Ron woods billet, or some mmad cams would be better. I know everyone on tech and central gives mixxer shit, but venom does a decent port job for the price. Not really comparable to mmad or some of the other top notch porters though.

2012年6月13日 · Let's keep this a no-bull knowledge base for the various cams available for use in the YFZ450 and other compatible 5-valve Yamaha 450-class engines. If information posted by anyone is found to be inaccurate, post the cam card or otherwise which proves him wrong.

2008年2月26日 · Yes you can still do the cam mod and it will act the same if you never put in the big bore kit. It acts the same way and is way to easy to do. It took me half an hour to do very simple and very affective. But ive heard that the hot cams give you better performance then just the cam mod alone so thats why im going with the hot cams as well.

2010年2月26日 · Yamaha YFZ450/450R (2004-Present) where to get a head port. Jump to Latest 6.4K views 7 replies ...