All that would come of those races is, that you'd find out who had the better set-up for that particular type of racing that day. Running them all on the same dyno, with the same tires, under the same conditions would be the only way to prove that your builder is #1. And then all you'd find is that you're only a few HP ahead(or behind) of the next builder.

 

If we're talking reliabilty here. I think I've got you all beat. My KENZ 727 has been together for about a year now. And it has been used for just about everything.

Such as:

50+ full-throttle dyno passes.(Mostly testing bolt-on parts at KENZ)

Towing services(everything from friends ATV's, to my Dad's 1000lb minirail, to pulling my wife and both kids in thier 650lb underpowered Kart through all the Cinders -3 miles each way- this last weekend to and from $100 hill. With knobbies at 7500 feet of elevation I might add)

Competition at this past year's MLK weekend hill racing at Glamis.(where it was easily the fastest stock carburated quad in attendance)

It's also been drag and hill raced extensively. Probably to the tune of at least 250 full throttle passes.

If those don't prove the reliabilty of a big-bore, and KENZ CYCLE TECH for that matter, I don't know what will.

Also, all that's been required for me to do to my 727 over the course of the year, has been routine maintenance and tuning for various riding conditions.[img]i/expressions/face-icon-small-happy.gif[/img]

 

OK all will be decided who is king or best engine builder in a few weeks. Personally I really don't care who is fastest or reliable. I can tell you that I have shifted mine up to 10,000 rpm several times and never had any problems.

RaptorAZ will you be showing up to the Nationals in a few weeks?

 

I'm pretty sure that I'm NOT going. For 2 reasons: I'm currently broke, and your guys home track advantage is gonna be a killer for any other builder to be competitive.

The only way for a TRUE test of who is KING, is to meet in neutral territory. Anyone up for a trip to St. Anthony's?[img]i/expressions/face-icon-small-wink.gif[/img]

 

If I could get enough time off from work I would not mind meeting you up there. But I just started my new job a year ago and I have only five days of vacation this year. I will spend that time with my son.

Soon enough we will all get a chance to meet somewhere RaptorAZ. The track advantage really is not there when you consider The Bom won last year and he is from Missouri.

 

I personally don't agree with dyno wars. Yes it does tell you who has the strongest motor, but if you do not know how to ride or tune it, it is basically worthless. Scooby should have won 4SW2 then??? I believe fastest to the top of the hill, or finish line is only way to compare. Just my opinion.

 

Raptoraz- Your are wrong about the "home track advantage" This is a new track. It has been completely redone and it not quite yet finished. That is why anyone is welecome to run on friday and on saturday before the races to get there quads sorted out. I would be surprised if i even get a chance to make a pass on it before the races. Too much to do and too little time.

 

That's impressive that the Kenz727 is running on stock carbs, didn't know that. What bout the Sparks690's in that video, are they on FCR's? Like you guys mentioned, you really notice it on long hillclimbs round where you live in the dunes and wide open spaces. Up where I live in igloo territory(jk), there ain't no wide open hillclimbs, just flat river drags. And I as well don't believe in dyno numbers. I personally look more at the power curve, consistancy rather than just solid high HP spikes especially in the high RPM range. I believe an engine carrying a solid 10 HP gain all the way up to 9000 rpm with a peak of 15HP will outrun an engine running a 5HP gain through the curve and a 20HP peak. Simply for the matter than you spend more time between 0-9000 rpm than you do at 9000 rpm alone. Even then, for some reason what's happening with the engine seems to matter so much differently once your on soil. I can tell you this much, I can't touch a piped and intaked Pred on pavement off the start, but rolling in first I walk away from him like he's standing still. I have just too much bottom end, he has none, so he can dump it and keep the front end down, just like a banshee could. Proper setup is 75% of machine capability in my opinion. if your just spinning or letting off to keep the front end down, you lost the race, but if your hooking up and WOT the whole time, you've just done the best you and your quad can do. Not too many people can limit out their machine before they are limited first due to the setup of the machine. I honestly would run a 700+ Rappy in the dunes no doubt, my quad would be built completely different as well, wouldn't have half the stuff I have on it now to save weight too! I'm turning my Rappy into a Baja/XC quad, getting the YFZ for MX, and I'll keep a spare set of paddles for running in the Oregon dunes and the odd sand hills in my area the few times a year.

 

I wouldn't doubt it, with your guys' technology and plain number of people out there in the dunes I wouldn't doubt that if your off one day you'll get walked all over! That's how it is when I go to the mountains on my sled, either your at the front of the pack, or the back. It don't take much to get off tuned, and it seems like the more mods you got, the finickier they get. I try to get the most HP from bolt ons stock first, then go from there. I don't buy more mods till I'm getting beaten. I like being the underdog taking down the smack talkers. That's why I'm building up my V6 in my S-10 instead of tossing in a V8, just to tell the guy with the V8 he just got walked all over by a V6! Same with the 686, I'll get FCR's, better suspension, and anything in between for ignition and what not, step by step tuned every step instead of all in one shot, that seems to be the worse way to mod out a machine unless you have a base point. I've honestly lost to a stock Pred due to suspension and traction in winter, and he was running top notch. In summer, when I tuned my carbs and had endless traction and a flat gravel road, he lost by 3 quad lengths and he was even modded with a pipe and intake this time! I've beat modded raptors after even while missing gears almost every gear, just because his quad ran like crap, but he thought it was fast cause it had a pipe and was loud! LOL

 

Raptoraz- You are being to negative. As far as relibility of your 727 goes..... If you are down on power it ought to stay together longer[img]i/expressions/face-icon-small-wink.gif[/img]



All- I miss the point here on reliability. What is the big issue on a well built stock bore, 686 or 727? A cyclinder or a sleeve? I guess at some point some will have issues with the stock cases? Back when Bob was tearing my motor down on a monthly basis, everything was looking good. In the last few years of doing R&D i have gernaded a piston (major lightened), broke a dual rate valve spring, toasted a few clutches and bent a stock rod and a exhaust valve. Not to bad for all the passes i have made. (throw in the 01 tranny fiasco 2 times, lol)