| Just as a point of reference most stock RC51's make about 118-120 rwhp. Increases of 3-4 hp on top are common with decent cans & a Powercommander with a good map while increases of 8-10 hp have been seen with premium cans and an optimal map plus the soft-limiter removed, but what really seperates the can manfacturers are the ones that can get the most linear power curve. Some of the Exhausts like the Sato's & the Moriwaki low mounts combined with my custom maps have extremely linear power delivery as well as very broad & flat torque curves while other exhausts simply lack any real torque gains over stock & some even lose torque. |
When viewing dyno charts keep in mind that dyno readings vary by geographic location & ambient conditions which make up the correction factor. Having said that you cannot compare one dyno reading to another unless they were both ran on the same dyno under identical conditions, even a 5 degree change in the air temperature can drastically affect the dyno reading let alone changes in barometric pressure & overall altitude where higher altitudes will always yield less power than runs made at sea level, however the power curves will remain constant even if the amount of horsepower is lower. In reviewing these charts you will be able to get a pretty good idea of what to expect in the way of power curves. You will notice that some cans provide more hp lower in the rev range while others give a greater topend boost. Another note is that all dyno runs are without the aid of ram-air. This is especially important when looking at the Air to Fuel ratio charts as the values will become slightly leaner at speed. |
Feel free to submit your dyno charts
Sato Slip-ons Page
Jardine
2-1 full system,
Erion
2-1 full system,
2
different charts on one page
Since these are in black & white I manually highlighted the
second chart
down the page as a copy directly below the original.
HRC
high compression pistons, PCII with the latest mapping,
ported and polished, Yosh full titanium exhaust.
from D.A. Brown
Moriwaki Full System: Tricky's Akra map VS Dynojet Akra map VS LDH REV5 map
from EmDee (Mark DeGross)
Direct comparison of Two Brothers versus Moriwaki Slip-ons
from Jack Van Voast
Two Brothers Slip-ons versus Stock
from Two Brothers Racing
These are great! it's the same bike on the same dyno with:
Arrow
Slip-ons with Dynojet Arrow map
vs
Moriwaki Slip-ons with Dynojet Mori map
vs
Moriwaki Slip-ons with LDH Rev 5 Custom Mori map
Torque
Charts for the Arrow vs Moriwaki
from Mark Kitaoka
More Moriwaki comparison charts below
Mike Velasco Racing with PCII
Yoshimura Full System / PCII
from D. Macfarlane
Yoshimura Slip-ons in the following 3 configs.
Base -
All stock
Mod - Yosh race slip-ons, PCII (with DJs 003 map), jumper
004 - same as above but with DJ's 004 map adding 4 degree of
advance
from Eric Harper
Arrow hp curves for full system, slip-on & stock
Moriwaki slip-on dyno charts
from Moriwaki from Nick Mitchell
stock vs PCII PCII & LDH map
from Mori222 with PCII & LDH map
From JVV with PCII, dynojet versus
LDH map (no advance)
Promotive Slip-on charts for HP & Torque on a PCII equipped SP1
from David Parsons
Micron Full System
Erion slip-on dyno charts
Two Brothers
slip-on dyno charts
(notice that this
isn't even a real dyno chart but a generated spreadsheet
graph...)
TBR hi mount map vs
no map from JVV
Akrapovic Full System
from Randall Smalley with PCII
2000 SP1 basic racer without PCII
SP1 w/ Custom PCII map
hp/torque/Airfuel
LeoVinci slip-on dyno charts
Leo Vinci Ti low mount slip-ons
PCII with Sato8 Map
Flapper Mod
Air Filter Mod
Rev Limiter Mod
from "01RC51"
street slip-ons race slip-ons
Jardine slip-on dyno charts for hp & torque
Mig hi mount slip-on charts for hp & torque
Blue Flame slip-on charts for hp & torque
submitted by CPShoesaver
(C) 2001 www.rc51.org ROGUE