New DCS-Pipe on my 87 LT500

• New DCS-Pipe on my 87 LT500
  Posted by Mitch Keller on 29 Nov, 2012 17:27
• Went and had the my DCS - 4 Pipe dynoed locally at DASA Racing in Riverside on my 87 and ended up very surprised how it ended up to the other dyno graphs, unfortunately I was also wanting to dyno my other 88 LT500 my top end  had fractured cracks during a dyno run from another location, so that graph wont be done till some time in Feb with a fresh top end, I want to post both the 87 and 88 graphs soon.
  
  The Graphs shown are as follows:
  
   Top End 87 Large Reed Dune Play Ported by Moto Perfect Race Engines
   http://www.suzukiquadracerhq.com/engine-builders/moto-perfect-race-engines/ 57cc O ring Head, 42 Mukuni Carb, VF-2 Reeds, No Air Box, Alum Air Filter Bracket, 9" K&N, Gearing 13/46, Duro Street Tires 22x 11 x 10 (Bottom End is LT500 88 (lower gearing 4th, 5th)
  
  
  As you can see I have been working on this side project for some time working on constant refinments.
   
   These are Dyno Jet (5-3-12) in Orange County  and a Mustang Dyno (11-20-12 - 11-29-12) to compare numbers.
   DYNOJET - (RED) DCS Pipe and the Q  V-1.1 Pipe (GREEN)
   
  DASA-MUSTANG DYNO 11-29-12
  

  Dyno Test 87LT500 11-20-12, The Spikey Curves At The Begining Of The Run Were Caused From Wheel Hop, that is why we "Re Ran" this Dyno Run on the 11-29-12 LISTED
  

  
  
  
  
  
  
  
  
  
  
  
   
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• #1 Reply
  Posted by Rider414 on 29 Nov, 2012 17:42
• You blew it up on the dyno? SMH
  
  
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• #2 Reply
  Posted by Stpltn250r on 29 Nov, 2012 18:43
• are these 5th gear runs? close ratio or wide ratio trans?
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• #3 Reply
  Posted by Mitch Keller on 29 Nov, 2012 19:44
• Yes, the 4th and 5th gears were changed to the 88 gearing
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• #4 Reply
  Posted by Mitch Keller on 29 Nov, 2012 19:46
• Quote from: Rider414 on 29 Nov, 2012 17:42

  You blew it up on the dyno? SMH
  

  
  Must have , I lost compression, the jetting was way off almost had for some reason a 168 ended up at 180, but damage was all ready done. Lucky it was just a piston that needed replacement.
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• #5 Reply
  Posted by Stpltn250r on 07 Dec, 2012 11:31
• Did you ever test this at Shearer Custom Pipes dyno? Or HPR?
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• #6 Reply
  Posted by Mitch Keller on 07 Dec, 2012 11:40
• This 87 LT500 w/DCS pipe was not tested at HPR or Sheares.
  I am still willing to pay for the dynoing of a V-2 or an HPR  pipe here in Riverside.
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• #7 Reply
  Posted by Stpltn250r on 07 Dec, 2012 12:21
• Really.. I would have thought you would take it by Mats to get it checked.
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• #8 Reply
  Posted by Quadster on 07 Dec, 2012 12:28
• Make sure to post the results here of the V2 pipe.
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• #9 Reply
  Posted by Dezsled on 07 Dec, 2012 12:31
• When will someone offer one up for a dyno session?
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• #10 Reply
  Posted by Stpltn250r on 07 Dec, 2012 12:38
• Mitch. This thread is about an 87 jug. Not an 88. I do know what your small reed did. I was asking what the pipe did with the 87 jug at Mats dyno. 
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• #11 Reply
  Posted by Mitch Keller on 07 Dec, 2012 12:44
• My dyno testing is local due to the hourly rate of $75 hour and they are 10 mins away from my shop thats not bad to get your jetting tunned in.
  
  
  
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• #12 Reply
  Posted by Mitch Keller on 07 Dec, 2012 13:00
• Quote from: Kennerz on 07 Dec, 2012 12:35

  HPR/Shearers/ Dasa three different measures. We all know they all read different.   I was wondering how you ran the 1.1 on the Dasa dyno? I thought this was sold many months ago, way before the DCS? Plus was the 1.1 tested on the same top end?
  person making pipes of the ones mentioned as of today is HPR.
  

  Dyno Jet was taken 5/3/12 (See Date on the sheet) when I still owned the V-1.1.
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• #13 Reply
  Posted by Mitch Keller on 31 Dec, 2012 10:02
• Just got back a few pipes that were refined  to the Version 4 design, the version 1 and 2 had small fit issues that I just wasnt going to put up with, this pipe is Dezsleds (Mike) pipe that was re done to Jig of Version 4, I am having 4 other pipes triple plated to be prettied up! and have 1 more raw pipe available.
  I am sure Mike will chime in on the fit of this DCS-4 pipe vs hie DCS-2.
  
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• #14 Reply
  Posted by Dezsled on 31 Dec, 2012 10:50
• The earlier version ran great other than a couple clearance issues. The newest pipe went right on using the oem mounts/rubber isolators, no problems fitting it up. Stamped pipes look terrific but there's something about the cone design that looks sweet.
  
  New motor, bored carb, new pipe.... Looking forward to scorching my shorts! 
  
  
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• #15 Reply
  Posted by RJTLT500 on 20 Jan, 2013 08:11
• I see two of these pipes on Ebay right now, one raw and one plated. How much power improvement and where in the power band would these pipes have over the LRD pipe i am running now?
  
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• #16 Reply
  Posted by Dezsled on 20 Jan, 2013 09:59
• I only have had a fmf to compare power wise with the DCS pipe. The DCS pipe power comes on early, hits hard in the mid, and keeps pulling way up into the upper revs.
  
   I never ran an LRD, maybe Mitch can answer your question better.
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• #17 Reply
  Posted by Mitch Keller on 20 Jan, 2013 10:03
• Quote from: RJTLT500 on 20 Jan, 2013 08:11

  I see two of these pipes on Ebay right now, one raw and one plated. How much power improvement and where in the power band would these pipes have over the LRD pipe i am running now?
   
  

  
  I dont have any Graphs on the LRD as of yet to compare, it is in the works. The DCS-4 was designed for:
  Great Low End Punch (Special Head Pipe Design) Working to a massive midrange and a un believable top end power (over 2000 rpm) This pipe and Silencer will rip across the whole power band, see our graphs listed above.
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• #18 Reply
  Posted by RJTLT500 on 20 Jan, 2013 11:55
• The FMF is what came with my Zilla when i bought it. It has great low end grunt but from there the LRD out performs it by a lot. All i see about the LRD that it is old technology and that the new pipes are out performing it. By how much ? The top dogs want $800-- $1000 for there pipes i only paid $400 for my LRD. Am i really getting that much more power for twice , or more, the money? I am not a racer just a dune rider, but i do crave big power.
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• #19 Reply
  Posted by Maxxh2o on 20 Jan, 2013 12:44
• What carb and intake combo are you running rjlt?
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• #20 Reply
  Posted by RJTLT500 on 20 Jan, 2013 12:46
• PWK 38mm with a stock intake and Boysen reeds.
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• #21 Reply
  Posted by Maxxh2o on 20 Jan, 2013 12:53
• Personally I'd have the Pwk worked to a 41 or go to mikuni 42.5 and some V2 reeds before a pipe swap. Less $ as well....
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• #22 Reply
  Posted by RJTLT500 on 20 Jan, 2013 13:00
• Actually i just bought a new 41mm  PWK working on the jetting to dial it in, waiting for parts. The V2,  i am having trouble finding that, as i am running a small reed motor
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• #23 Reply
  Posted by Maxxh2o on 20 Jan, 2013 13:06
• My 41 Pwk is close on jet at 185m 52p and CEJ needle #6 slide if that helps any. I still need to get the slide up more with a longer stop screw but that's on the list to do someday...
  
  Isn't Jerry making V2 set ups now?
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• #24 Reply
  Posted by RJTLT500 on 20 Jan, 2013 13:22
• Your jetting is the same i have , just need a different needle. If he has the V2 setup for the small reed motor i am in the market for one.
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