Page 2 of 15 FirstFirst 123412 ... LastLast
Results 16 to 30 of 221

Thread: Aprilia RS50 9 Pipe Test, the results page!

  1. #16
    apriliaforum prov-nov tabpat's Avatar
    Join Date
    Jul 2003
    Location
    Lexington, KY
    Posts
    36
    Is the stock pipe "stock" or completely derestricted? I miss that lower end power.

  2. #17
    apriliaforum Junkie ThugSTar910's Avatar
    Join Date
    Oct 2003
    Location
    Milton Keynes, England
    Posts
    272
    Hey Micah gd work those graphs are really useful, i will have my full MKSP set up up and running soon then its off to a dyno so ill post the results.

    Dan
    CERS50, Colin Edwards Rep. polished wheels,frame,sets. MK SP 70cc cylinder, MK SP70 Zorst, MK SP Crank, MK SP Clutch, MK SP 21mm Dell'orto Carb, Ram Air Filter, Kundo Carbon Reeds, Pirelli Sport Demons 110/70 Front, 130/70 Rear. 17/18bhp 85+mph.

  3. #18
    apriliaforum Member
    Join Date
    Oct 2003
    Location
    staines, middlesex uk
    Posts
    216
    Yer i always used to rip the stock pipe off saying it woz shite but lookig at thos graphs it aint so bad after all! So aprilia do no wot their doin after all.......

  4. #19
    apriliaforum Member
    Join Date
    Sep 2003
    Location
    Iowa City, IA
    Posts
    187
    One thing I think of, maybe it doesn't matter much, but does weight savings from switching from a stock pipe to aftermarket make up some of the power that's lost at lowend?
    Dan

  5. #20
    apriliaforum Member
    Join Date
    Jul 2003
    Location
    indy
    Posts
    221
    where's the gianelli pipe?

  6. #21
    apriliaforum expert t3ch's Avatar
    Join Date
    Nov 2003
    Location
    Dallas
    Posts
    582
    The only pipe I did not get to test in this series was the Gianelli which has traditionally performed very well from 9,500rpm to a max of 13,500rpm.
    www.ogsth.com

    Knowledge is power. Power corrupts. Study hard, be evil.

  7. #22
    apriliaforum prov-nov
    Join Date
    Dec 2003
    Location
    Denmark
    Posts
    69
    No offence, but for a 75cc, that is pis poor performance.
    My RS did 16,4bhp with 70cc and a 21mm carb, graph is below:

    http://81.7.135.211/moped1/images/Galleriet/RpR'sRS50/RS50%20effektkurve.jpg

    Pretty much all MK Pro Race parts are fitted, exept gearbox and primary transmission.

    Also I'm wondering that you state you tested the MK SP on the Due Plus. The MK SP and PR pipes only fit the SP and PR kits because of the manifold used. Did you fabricate a special manifolk for the test?
    RS 50 @ MK Pro Race @ 19,14hp

  8. #23
    apriliaforum Member
    Join Date
    Oct 2003
    Location
    staines, middlesex uk
    Posts
    216
    thing is tho you've got many variables such as-

    different types of dynos
    climate
    and many ovas

    I reckon that these variables alone that i have stated could easily give or take a few horsepower.

  9. #24
    apriliaforum expert t3ch's Avatar
    Join Date
    Nov 2003
    Location
    Dallas
    Posts
    582
    /me points to location

    he's in austin, and it was pretty cold when the test was performed.
    www.ogsth.com

    Knowledge is power. Power corrupts. Study hard, be evil.

  10. #25
    apriliaforum Member
    Join Date
    Sep 2003
    Location
    Austin, TX
    Posts
    222

    Arrow numbers were lower than normal

    Originally posted by RpR
    No offence, but for a 75cc, that is pis poor performance.
    My RS did 16,4bhp with 70cc and a 21mm carb, graph is below:

    Also I'm wondering that you state you tested the MK SP on the Due Plus. The MK SP and PR pipes only fit the SP and PR kits because of the manifold used. Did you fabricate a special manifolk for the test?
    1. The numbers were lower than normal because the bike wasn't jetted correct for race gas. The big dips near the peak are obvious signs of incorrect jetting for the higher revving pipes... if the jetting was spot on you'd see a smooth graph similar to the stock pipe graph. The same bike was run during the summer (same mods & jetted for pump gas) and it peaked 2hp higher with one of those pipes, so jetting plays a big part in the results.
    2. That MK pipe being tested was designed to work with the stock cylinder so it works other kits too. MK makes 2 versions...
    3. Probably different dyno's too which means different results(some more accurate then others).

  11. #26
    Honest always, feared often Micah / AF1 Racing's Avatar
    Join Date
    Jun 2003
    Location
    37 miles E. of ATX, TX USA.
    Posts
    27,813
    RpR...my Metrakit Pro Race top end kit has done about 19bhp on my dyno....the TP75 and every other kit on this planet will make a bit less power than the Pro Race. I simply did not have the time to rejet for each pipe tested so all you really need to look at is how each will overrev with power and where the peak occurs.

    I will be doing much more testing with the Wild Lion and the Metrakit SP as it looks to have a lot of potential when properly jetted. The Jolly Moto pipe is also capable of over 15 bhp when properly set up.

    This was not a motor building shoot out, just examples of how different pipes perform on the same cylinder.
    Diminished expectations is the key to happiness in life.

    Micah Shoemaker
    AF1 Racing
    9900 IH35N
    Austin, TX 78753
    micah@af1racing.com
    @ShoemakerMicah
    @AF1Racingaustin

  12. #27
    apriliaforum expert JonnyRS50's Avatar
    Join Date
    Jul 2003
    Location
    Hartlepool, North East of England
    Posts
    6,407
    well now i know why my pipe is so dead till you thrash the bike anyways, good on you doing all that, and i must take this oppertunity to point and laugh at craig because he exchanged his stock end pipe for the end pipe off an arrows i think it was *points and laughs* yet anolther reson why my RS was faster =P
    1992 Yamaha TZR250 3XV
    2002 Suzuki DRZ400
    2000 Cagiva Mito Evo 2
    2000 Cagiva Roadster


    Parts currently in stock for RS125, Mito, RG125, CBR125, VFR400

    Need RS125 parts? Drop me a email sales@crotchrocketspares.com

    Aprilia Motorcycle Breakers 125cc Spares
    Piaggio Scooters
    My Bikepics

  13. #28
    apriliaforum prov-nov
    Join Date
    Dec 2003
    Location
    Denmark
    Posts
    69
    Originally posted by Micah / AF1 Racing
    RpR...my Metrakit Pro Race top end kit has done about 19bhp on my dyno....the TP75 and every other kit on this planet will make a bit less power than the Pro Race. I simply did not have the time to rejet for each pipe tested so all you really need to look at is how each will overrev with power and where the peak occurs.

    I will be doing much more testing with the Wild Lion and the Metrakit SP as it looks to have a lot of potential when properly jetted. The Jolly Moto pipe is also capable of over 15 bhp when properly set up.

    This was not a motor building shoot out, just examples of how different pipes perform on the same cylinder.
    Yes, the MK PR kit is told to do between 16 - 19hp, depending on karb, ignition, and so on. Så mine certainly has room for improvement =)

    This wasn't ment as an attack at the power outputs of the bike, i just wondered since the Due Plus usually seems to perform a lot better. At least at one 15,5hp Due Plus is seem here in Denmark :-)

    You said MK made two versions of the SP exhaust. Do you happen to have the part no. of those two exhaust?
    RS 50 @ MK Pro Race @ 19,14hp

  14. #29
    Honest always, feared often Micah / AF1 Racing's Avatar
    Join Date
    Jun 2003
    Location
    37 miles E. of ATX, TX USA.
    Posts
    27,813
    On my personal RS75 race bike with TP Due Plus cylinder I am getting 15.5bhp but, that is with ignition changes, race fuel, 28mm carb, closed cell crank, Carbon Tech high rpm reeds and premix at 28:1.

    I was not insulted or anything....no worries.
    Diminished expectations is the key to happiness in life.

    Micah Shoemaker
    AF1 Racing
    9900 IH35N
    Austin, TX 78753
    micah@af1racing.com
    @ShoemakerMicah
    @AF1Racingaustin

  15. #30
    apriliaforum Member
    Join Date
    Jul 2003
    Location
    indy
    Posts
    221
    i'd be interested to see this test done with the stock airbox installed.

Page 2 of 15 FirstFirst 123412 ... LastLast

Similar Threads

  1. Aprilia RS50 Factory Project - Black & Gold
    By NeoGeniX in forum RS50 Technical
    Replies: 69
    Last Post: 02-08-2008, 07:43 AM
  2. USA Laws about the rs50
    By Tybersk8er in forum RS50 Technical
    Replies: 13
    Last Post: 08-22-2006, 11:27 PM
  3. THE TRUTH: The inside line on Aprilia’s new superbike…
    By italyscarab in forum Aprilia News and Product Discussion
    Replies: 22
    Last Post: 05-02-2006, 10:42 PM
  4. 2001 Aprilia RSW 125 GP for sale
    By stuart carter in forum RS125 Euro-archive
    Replies: 7
    Last Post: 03-18-2006, 08:27 AM
  5. 2001 Aprilia RSW 125 GP for sale
    By stuart carter in forum RS125 Euro-archive
    Replies: 3
    Last Post: 03-17-2006, 02:51 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •