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Author Topic: DCS-4 PIPE DYNO TESTING / V-2  (Read 874 times)

Offline Mitch Keller

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DCS-4 PIPE DYNO TESTING / V-2
« on: February 08, 2013, 07:57:07 pm »
Ok some more testing, here we have a test with a Q-V2  with my LT500 and Dales LT500 (02-07-13)





Goal on Version 5 is to keep low /mid torque and increase the curve between 6000RPM to 7000RPM to produce a good play duner / trails pipe
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Offline Rider414

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #1 on: February 08, 2013, 08:16:24 pm »
Holy crap your pipe is a beast monster off the bottom.
Ain't ever seen it......but I have heard it.

Offline Mitch Keller

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #2 on: February 08, 2013, 08:19:05 pm »
LOL
Holy crap your pipe is a beast monster off the bottom.
Said I wanted a Strong Bottom end and mid, cant wait to start the version 5 next week 
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Offline El Diablo

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #3 on: February 08, 2013, 09:05:47 pm »
This is probably the perfect play / trail pipe! I wouldn't change too much with your next batch. I almost want one now!
Brian
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Offline MD2smoker

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #4 on: February 08, 2013, 09:36:07 pm »
First off, being an east coast guy im lovin the dcs 4 bottom end. And overall performance.
A couple of questions...
1. Do you believe the dip from 4500 to 5500 is due to pipe design or powervalve setting? What pv settings were you testing during the session?
2. What is the diff. Between a play dune port and an aggressive trail port? Im assuming more top end?
Ive only owned my zilla for 6 months and am trying to develop my build plan. Was tellin my wife I wanted a dcs 4 if available, after tax return but now I may wait for version 5.   Nice job on the testing too! Ive been checking the page every couple hours for a week to see the results.

Offline MadMax2424

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #5 on: February 08, 2013, 10:33:43 pm »
i've been following a lot of this.  i agree.  seems like the dcs is a good pipe for the money.  only thing that confuses me is how someone designs a pipe and calls it theirs but is not one of the bulders listed in most threads.  how do you design a pipe if you dont know how to build a motor/  or maybe he does?  am i missing something?

Offline MotorGeek - Jerry Hall

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #6 on: February 08, 2013, 10:44:11 pm »
Mitch run #!! was one of the runs made on the 1st test day where the dyno weather station was miss reading the humidity on a hand full of runs.  All of the runs that had these high humidity readings around 47% need to be discarded because the dyno inflated the correction factor on these runs 7% to 8% more than other runs made within a few minutes of each other.

All of the valid runs had correction factors within 1% of each other. 

If you display run #11 and run #86 uncorrected, you will find there will be very little difference in the two runs.

Offline Mitch Keller

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #7 on: February 08, 2013, 11:07:50 pm »

Jerry I just deleted that graph to not confuse or mislead anyone.
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Offline QuadMan8

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #8 on: February 08, 2013, 11:17:08 pm »
Good catch motorgeek. Way to keep it honest.   With 60 runs to choose from why choose to even show us over inflated runs that are bogus.....perhaps because they look better for that manufacturer...hummmm
If they can't kick start it--THEY CAN'T RIDE IT

Offline Mitch Keller

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #9 on: February 08, 2013, 11:30:56 pm »
Good catch motorgeek. Way to keep it honest.   With 60 runs to choose from why choose to even show us over inflated runs that are bogus.....perhaps because they look better for that manufacturer...hummmm

Jerry I just deleted that graph to not confuse or mislead anyone.
Quadman, the answer was posted before you posted your question
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Offline MotorGeek - Jerry Hall

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #10 on: February 09, 2013, 12:04:40 am »
Good catch motorgeek. Way to keep it honest.   With 60 runs to choose from why choose to even show us over inflated runs that are bogus.....perhaps because they look better for that manufacturer...hummmm

I have made over 100,000 dyno runs in my career and probably studied another 50,000 or so dyno runs made by engine manufactures that I have done consulting work for.  You have to carefully study at all of the test information and testing procedures when you are designing new engines.  One small oversight or an error in testing can cost an engine manufacture over $30,000 for wasted tooling for a cylinder mold or the precision male/female dies that stamp the OEM pipes.  The performance of the production motor package has to match the performance of the proto-type or some heads are going to roll. 

Offline GrkGuy

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #11 on: February 09, 2013, 02:26:10 pm »
mitch where was pv set at for these runs, did you guys try different settings on it.
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Offline Mitch Keller

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #12 on: February 09, 2013, 02:29:23 pm »
Not enough time John, 1 3/4" turn
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Offline Zuki250

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #13 on: February 09, 2013, 05:06:03 pm »
Mitch, was there a specific reason for that setting?
I recall Rogue tested powervalve settings last year and didn't find much success at that extreme of a setting. Here's what he wrote...

So in short, if your a drag racer running only WO, then blocking it off closed won't impact top end RPM / Power.If you do anything else, it can greatly impact your power below 6k RPM.... you can even screw up and set it to 1.75CC or more and it will kill your top end.

http://forums.everything2stroke.com/threads/47029-LT500-Quadzilla-Power-Valve-Dyno-results
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Offline Mitch Keller

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #14 on: February 09, 2013, 05:11:57 pm »
I was talking to John GRKGUY, and said  I might go out next week and do some runs with adjustments to the powervalve and post graphs but I think we are just splitting hairs now.
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Offline QuadMan8

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #15 on: February 09, 2013, 05:31:13 pm »
Hi Mitch or Dale

I have an  overall set up question as I am not familiar with your quad or Dales.  Looking at the difference between the two peak HP and Peak torque numbers there is quite a difference( no, Im not bagging on your quad mitch, Im sure its a strong runner)  What do you or dale think accounts for the 12ish HP difference?   Do  big reed motors just make more power,  Is it a difference in porting, carbs reeds?    Yours or Dales thoughts?

My observations  your pipe has a lot of grunt down low and should be a great trail woods pipe.  The Q2 rips mid and up top and should just sing in the sand and wide open spaces.  Two good pipes for two different riders.

In spite of all the crap you get as no way everyone will ever be satisfied...thanks for the tests.
If they can't kick start it--THEY CAN'T RIDE IT

Offline Mitch Keller

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #16 on: February 09, 2013, 05:39:47 pm »
Dales Quad is HPR's Standard Play Duner, yeah I said WOW also! Mine is a spare quad with a very light porting done to it so if any of my family member(my brother of son) dont end up killing them selfs while riding, and thought this would be more like the most common type of porting that members may have.

FYI, getting ready to send a top end to HPR next week   (Y)
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Offline STARPUSS

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #17 on: February 09, 2013, 06:30:44 pm »
Well after Seeing this looks like i know what i am going to spend my Tax Return Check on!


Or.. Should i Hold off for a #5 LOL?
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Offline Rainman56

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Re: DCS-4 PIPE DYNO TESTING / V-2
« Reply #18 on: February 09, 2013, 06:48:36 pm »
Forgot to ad in the other thread a big (Y)to the lines on the dyno graphs.You have no idea how much easier the wider brighter lines are to read.Again,good work and it is appreciated. +k2
Can,t fix stupid.:)

 

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