Dynamometer Results

Anyone can get on the internet and talk the talk. However, talk is cheap and after all the jaw-jackin, one fact remains... Saying what you can do and proving it are two entirely different things. Here you'll find some dynamometer charts verifying the results of the work we do, some interesting comparisons and other information.

Faster, Stronger and Longer...

Click on links under "Engine" column to view dyno chart and full details of the work.

 
Engine
% HP Gains
HP Gains
Work
Comment/Note
Dyno Facility
honda dyno results
Supermoto
04 CRF 450
 
 
in progress >
coming soon
BPM
Road Race
22-33%
5.2 - 13.1
full build
break-in run
BRG
kawasaki dyno results
Road Race
13-19%
3.9 - 17.2
cyl. head
636, not RR
Werkstatt
Street
18-27%
13.7 - 18.8
cyl. head
w/stock parts!
Werkstatt
suzuki dyno results
Road Race
18%
12.7
cyl. head
BPM
Street
12-29%
7.2 - 10.5
cyl. head
 
Werkstatt
yamaha dyno results
Supermoto
19%
8.0
cyl. head
w/stock parts!
BPM
AMA SS legal
12-25%
11.2 - 17.7
cyl. head
set-up 2
Factory
AMA SS legal
11-14%
11.1 - 11.9
cyl. head
set-up 1
Factory
Road Race
11-13%
10.0 - 11.8
cyl. head
Werkstatt
Road Race
47-58%
22.4 - 23.6
full build
450 Superbike
BRG
Road Race
41-47%
17.6 - 19.4
full build
413 Superbike
BRG

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Interesting Comparisons

Here are some more dyno charts and comparisons that you might find interesting.

A comparo, just for fun...

Performance Concepts 405 - vs. - Factory Kitted ZXR 400 SP:  Our 2006 450 Production Championship engine.

How about another one?

Performance Concepts 441 - vs. - Factory Kitted ZXR 400 SP:  Our 2004 450 Superbike Championship engine.

Will you be having the meal?... Or do you prefer that ala carte?

Top End Service - vs. - Cylinder Head Only:  A good example of how selected top end work can free up some additional HP from an already worked cylinder head. So how hungry are you?

Would you rather be smart, small and fast -or- just big?

Development - vs. - Displacement:  Illustrating what's possible with a proper development program. This a 180 cc displacement difference we're talking about.

Everyone knows the earth is flat, you'll sail off the edge... your doomed!

Lowered Compression - vs. - Raised Compression:  Higher compression ratios is not always the answer. Every engine and application is different. Some situations require an alternate perspective and approach to acheive certain goals.

Well, that was just a fluke, try that again... I dare you!

Uh... we have, take a look at the compression ratios of the majority of our builds. Again we're NOT saying that raising compression isn't beneficial at times - we are not contesting that. What we ARE saying is, every scenario is different and we build accordingly - for the application and customer needs.

Dynamometers

Different brands of dynamometers (Dynojet, Dynostar, Factory, Land & Sea, Mustang, Superflow, etc.) and types (eddy current or inertia) measure and/or calculate power differently. This can make for widly different readings from one to another. There are even variations in the readings between two test facilities that both use the same brand and model. No doubt, context is everything - if you're not comparing two figures being derived from the same dyno and facility - that comparison will have little meaning.

Horsepower Figures

In addition to horsepower figures, we list power increases represented as a percentage. We feel the percentage increase value is the more relevant figure in examining power gains, than the hp number itself. At least until there is a truly a universal standard by which all dyno manufacturers can agree to measure power.

Regardless of dynamometer brand, model, type or the hp figures they provide - they're simply a reference and tuning tool. What we're looking for, is the difference between the baseline power before the work and the power increases after the work. Ultimately, this all that really matters whether referring to the scale (%) of increase or the hp increase number itself.

Testing

We do our testing on both eddy current and intertia systems at various facilities - this is why we note the dyno brand, model and test location at the bottom of each dyno results page. This is to give you a frame of reference, keep in mind you cannot compare dyno results between two different facilities. Even if they use the same dyno and software - there will be significant differences.

While we would like to do all testing on the same dyno/facility... It's just not realistic. This can be due scheduling and time contraints, but it mostly about customer preference. For whatever reason, if our customers feel more comfortable with using one dyno/facility over another - that's what we'll do.

Preference

Without getting into the dyno brand/type debate... Simply and when possible, we prefer to test on Factory eddy current systems for consistency in repeatability and ease of tuning. Eddy current systems typically read much lower than inertia systems (most Dynojets). However, we could really care less about the number itself. Again, what were looking for is the difference between the baseline power before the work and the power increases after the work.

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