Brock's Performance

FAQ ID # 234
Last Update : 2016/12/02
Rating : Rated 5Rated 5Rated 5Rated 5Rated 5

Add to favorites
Print this FAQ

Social Bookmark this Article :

Question / Issue
How can Brock's get mapping so close?

Answer / Solution

For many years we have been trained to believe that every motorcycle which rolls off the assembly-line is “different”.  And, of course, this is true given specific machining tolerances, stack-up, etc.  What most don't realize is that the today’s technology allows for much more precise construction than in the past.  We can use our AMA Dragbike SuperSport race program as a perfect example as we have won every national championship that we have sought since 2005.  Much the same as AMA Superstock, our rules dictate that nearly every part in the engine must remain stock.  Can you imagine that the measured assembled deck height (piston to head clearance) of every single GSX-R1000 engine that we have measured from the factory has varied (for its model year) by less than .0015 since 2001--  It's true!  In the mid-1990's you couldn't confuse cam caps between one head and another because there was no way that the cams would even turn in the engine if you did.  These days, if one cap is damaged, 99% of the time you can install one from an old junk head and go about your business.  We have even heard of guys mixing and matching top and bottom engine cases.  The manufacturing capabilities and quality control of today's big 4 Japanese factories are nothing short of astounding.  We are speaking of engines and consistent power output, but the other control systems are equally impressive and precise.

Ask yourself some common sense questions: Every Hayabusa (or any other make/model) rolls out of the factory in Japan destined for SOME location in the world, correct?  If a customer purchases his new bike in South Florida and decides to make his first road trip to Denver, does his bike run okay?... DOES IT NEED TO BE REMAPPED?  Of course not!  Sensors on the bike allow it to make the appropriate changes to run correctly regardless of the heat, humidity, altitude, etc…  Is it 100% PERFECT by today's standards?  Maybe not… but it’s just fine for damn near every general motorcycling enthusiast and getting better by the year.  Enter the racer/perfectionist/tuner with a $60,000 dyno room with every imaginable measuring gadget.  Can he use today’s dyno technology to measure the existing factory base map and make changes to a completely stock machine in 250 RPM increments to make the bike smoother and accelerate harder?  Probably… but we are really splitting hairs and most ‘ass dyno’s’ would have a hard time telling the difference.  A drag strip will tell you that you just picked up 1/10 of a second, but anyone who says they can feel that type of performance gain is out of their mind, since it’s about half a bike length after accelerating to speeds approaching 150 mph; however, general drivability improvements can definitely be noticed when properly mapped.

So what happens when a performance exhaust system is added?  The previous known good base map in the ECU no longer matches the stock exhaust, much less the air fuel ratio required for optimum performance.  This can be corrected using the same equipment, which simply intercepts the signals from the stock ECU and conditions them appropriately before they reach the injectors.  Did the engine change? NO. Did anything else change from stock?  NO.  We simply replaced previous bent metal tubes with new bent metal tubes which do not have all of the flow clogging emissions equipment required by the EPA.  Why is it so difficult for people to believe that a properly engineered map can't be switched between bikes?  We didn't change anything in the engine or OEM control systems.  We simply adjusted/matched what was already present to match OUR exhaust system using a simple signal conditioner (Power Commander, Bazzaz unit, etc…).

This should blow some of you away:  Did you realize that your motorcycle has NO IDEA that a Power Commander or Bazzaz unit is even installed?  There really is no magic.  We approach all mapping combinations from an engineering standpoint and use known good performance data to develop the best map possible.  Could someone else develop a better map?  We don't really think so.  If we all have a true A/F ratio of XXX to one, there's no perfecting it.  But, a good tuner knows the difference between real-world results and a target air fuel ratio on the dyno or using a bike mounted Lambda sensor.   Over the years we have compiled many e-mails and comments from Brocks Performance customers stating that they spent $200-$400 because their friend, or someone else, convinced them that their bike needed to be custom tuned... only to go SLOWER at the drag strip or mile compared to our mapping!  These same people simply reinstall the map which came with their Brock’s Performance system in the first place, and their performance numbers returned.

It sometimes confuses customers when we tell them that our TRACK map, which has been modified for use with the bike moving (which begins life as a dyno map before being adjusted using measurement data from a Bosch five wire sensor) will typically read LOWER power numbers on the dyno compared to a map which has an air fuel ratio perfected for maximum performance on the dyno (with the bike sitting still).  Truth be told, as good as they are, the fuel injection systems on today's bikes are still rather primitive compared to cars, and it's not uncommon for the bike to overcompensate or under-compensate while moving.  This is what we correct with our TRACK mapping.  I can tell you from experience that the optimum performance air fuel ratio between engines is definitely not the same.  Whether you have a Hayabusa, GSX-R1000, ZX-14, S1000RR or Ninja H2, the optimum air fuel ratio will be different between them all to achieve record-setting results.  This depends upon the racing venue, the differences between quarter mile performances, and/or the differences of a standing start mile at the Ohio Mile, Texas or Bonneville.  All of these observances assume a normally aspirated stock engine; supercharged and nitrous oxide applications get even more confusing....  Best of luck finding a local bike shop dyno operator who knows these differences.
The bottom line? Save your hard earned cash and use the map we created for your bike/pipe/flash-It's free with your purchase and it works much better than your buddies might believe.

Direct Link to This FAQ

map, mapping, base, track, dyno, how can Brocks maps be so close, altitude
How would you rate this article?



Back to Top