Thursday, January 18, 2018

FAQ's // Preparations Before Your Dyno




Warning: Tuning devices mentioned here may not be legal for sale or use in California on any pollution controlled motor vehicles. Please see http://www.semasan.com/emissions for state by state emissions requirements.



In some cases, you might have reservations to dyno your vehicle due to reasons like "..but my engine is stock" or "...it doesn't need tuning, the guy I bought it from said he just had it tuned" or "it has a chip in it, but I don't know what kinda chip". We find the most common reason why people feel reserved is because they lack relevant knowledge and information about engine computer calibration.

Tuesday, January 3, 2012

Dyno Page: Skunk2 Megapower S2000 Header


Skunk2 recently released their new 4-2-1 equal length header for the S2000. Introductory pricing was at $750 which made it on our 'to-do' list for dyno testing. Test car was a stock 2007 S2000 with 50k miles. We performed a baseline before and after the header install, then began installing supporting mods and Hondata Flashpro tuning for favorable results.

Thursday, June 23, 2011

Tuning Reliability & Repeatability: An Example of Individual Cylinder Fuel Trims


Engine Management Systems (EMS's) gives the tuner ability to adjust fuel and engine timing as well as various other parameters, all in the name of creating the most optimized tune for your engine. A fine tuning procedure not often used or offered by tuners is Individual Fuel Trim Correction and Individual Cylinder Timing Correction. Fine tuning individual cylinders will result in peak performance, reliability and repeat-ability. For this write up we focus on the Individual Fuel Trim Correction.

Thursday, June 2, 2011

Carbonetic // Hasport // CT Engineering - Diff Install for S2K


We recently performed a complete differential upgrade on a Honda S2000. Excessive loads brought by the aid of forced induction engines and/or harsh clutch engagement "shock" leads to bearing cap failure in these particular diff's. By 2004 Honda implemented a clutch delay valve inside the clutch slave cylinder to essentially reduce fluid flow, in turn reducing shock. Enthusiasts annoyed by this countermeasure were soon able to figure out how to disassemble the slave cylinder and remove this bleeder. All roads then lead back to the weak diff. The common failure point is centralized near the top of the bridge of the outside bearing cap. Our goal was to get to this particular diff and upgrade before it was too late. 

Monday, February 14, 2011

Dyno Page: Hytech's N/A S2K Header



There has been much anticipation for the release of this S2000 header designed, tested and fabricated by John Grudynski of HyTech Exhaust Inc. Those who've used Hytech products are familiar with the material and weld quality, the precision taken to the merge collectors and his patented anti-reversion chambers. We had the opportunity to get our hands on Hytech's N/A 2010 model header and put it to the test on on our Dynapack Dynomometer. Though this header is lighter in weight than OEM (all s2k aftermarket headers are), we were only interested in power results during this test.

Monday, January 18, 2010

BT Power Page - CR looking for Toda Fun!

Today we had an opportunity install a few goodies on Kevin's 2008 S2000 CR:
  • Toda Spec C Camshafts
  • Toda Up Rated Valvesprings
  • Hondata Flashpro Engine Managment 
  • Dynotuning
Current Modifications:
  • Toda header
  • Toda test pipe
  • Toda 60mm Dolphin exhaust
  • Everything else stock
Here is a baseline off the stock map after the cam install. As you can see the air/fuel ratios started to lean out at 5k rpms into Vtec.

Tuesday, May 5, 2009

The Blacktrax dyno

Anyone possessing even the slightest interest in their car's performance, particularly those who have invested time and money in power-adding modifications, has likely wondered just how much power their car puts to the ground. Some people like to know in order to amass bragging rights, others want to know simply out of curiosity, and then there are the devoted souls who spend quality time with their investments, coaxing out every last bit of horsepower to gain that winning edge.