[home][rumors and news][model release matrix][dealer network][desktop calendar][exhaust notes][tov forums][links][search][sponsors][garage][login]

Tire Rack Upgrade Garage
 Search for a Dealer:
 Canadian Flag US Flag
 Honda Acura
 ZIP  
Acura
There are currently no active Acura promotions
Honda
There are currently no active Honda promotions
Another disguised TLX prototype spotted in California
More.......................
Refreshed 2020 Honda Civic Type R Breaks Cover at Tokyo Auto Salon
More.......................
American Honda reports December 2019 sales
More.......................
Spied in Chicago! 2021 Acura TLX
More.......................
2020 Ridgeline goes on sale Dec 16, arriving with 9AT, Honda Sensing, locking tailgate, and more
More.......................
HPD launches a much more affordable $90k (race-ready) Civic Type R
More.......................
Acura engineers cook up a 350hp SH-AWD SLX restomod for this weekend's RADwood
More.......................
American Honda reports November 2019 sales
More.......................
General Talk --> Re: Rest in Peace Kobe and Gianna Bryant
Join Discussion......
Honda e --> Re: Welcome to the Honda e forum!
Join Discussion......
General Talk --> Re: Our 2020 Kia Telluride Is Proving to Be Frustratingly Sturdy
Join Discussion......
Today's Reading Links --> Re: C/D: Alfa Giulia vs. BMW 3-series vs. Genesis G70 vs. Volvo S60
Join Discussion......
Today's Reading Links --> Re: Lithium extraction for e-mobility robs Chilean communities of water
Join Discussion......
Today's Reading Links --> Motortrend, MotoIQ, BMW M2 vs Supra
Join Discussion......
Accord --> Re: “New” Accord finally arrives in Australia
Join Discussion......
Civic --> Re: For how long we'll we have the CTR
Join Discussion......
General Talk --> Re: ACURA® CDX A-Spec?
Join Discussion......
Photoshops --> Re: TSX Generation Zero
Join Discussion......
General Talk --> Re: Need a summer project for my 9 year old
Join Discussion......
General Talk --> Re: WRX Crash takes out a tree.....
Join Discussion......
NSX --> Re: NSX vs i8 vs LC 500h vs PoleStar 1
Join Discussion......
RL / Legend --> 1990 Legend L with 79K miles on BAT
Join Discussion......
Photoshops --> Re: 2005 RL Wagon
Join Discussion......
Jump to:
article details
Author notyper
Categories All Honda/Acura, Integra Engine/Power
Create Date January 16, 2002 01:25
Last Update June 06, 2002 12:27
Page 1 - Test Conditions & Modifications
Last Updated: 07/29/96
by Shawn Church

Thanks to Chris, Jeff and Tony of Pro-Dyno for their assistance.

Test Conditions

The first two dyno sessions were performed in the winter months with dry cool air. Testing conditions were in the high 70s, low 80s. The latest test session was performed with air nearing 90 ambient in a swamp cooled warehouse structure (meaning high humidity). Engine operating temp was probably higher as well and fans may have been in operation more often on the latest test. Winter tests were also performed on reformulated gasoline which may have impacted results. Conventional wisdom says that reformulated gas contains less energy, but may burn more efficiently. Despite SAE correction factors, it is difficult to compare runs separated by such a large time period and divergent weather conditions (this assertion is supported by both Pro-Dyno and the documentation from Dynojet).

Condition of Car

The first test was performed with the car in need of a valve adjustment. The second session was performed almost immediately after a valve adjustment. This could certainly account for some differential in power. Regardless, the tests show that headers probably do not provide a significant boost without a freer flowing exhaust system. The third session was performed after an air conditioning compressor replacement, 6000 miles since the last valve adjustment, with a malfunctioning O2 sensor. The O2 sensor should not affect WOT readings, but the car will be retested to verify.

Modifications

The first test was performed with the DC ceramic headers and an open element conical K&N on a DC bracket and pipe (connected to stock intake tubing). The second test was performed with the stock headers after the DC unit developed a crack. The air filter remained in place, but the timing was bumped significantly over the 15 BTDC run on the first test (this combined with the valve adjustment allowed the stock header test to produce more power than the test with headers). The third test used the rewelded/recoated DC headers, a Dynomax custom cat back with 2.5" piping and a resonator, and a K&N filter supported by the bottom half of the stock airbox after the mounting point for the DC bracket broke. This change in the air filter configuration (in addition to being somewhat dirtier after a previous ram air experiment) is predicted to have affected intake efficiency somewhat. Timing was also reset to just under 18 BTDC to compensate for the hot summer weather here in Arizona (avgerage daytime temp in the 110F range).

Copyright 2002, Temple of VTEC

[Next Page]

reader's comments
Click Here to Submit Your Comments
Jump to:
TOV Photo Gallery: Honda and Acura at 2019 Los Angeles Auto Show
Read Article....................
TOV Photo Gallery: Other vehicles of 2019 Los Angeles Auto Show
Read Article....................
Photo Gallery: RealTime Racing's TOP secret Honda Collection Hall
Read Article....................
2019 Honda Passport PR Photo Gallery
Read Article....................
2019 Acura NSX PR Photo Gallery
Read Article....................
First Drive: 2019 Acura ILX
Read Article....................
Contact TOV | Submit Your Article | Submit Your Link | Advertise | TOV Shop | Events | Our Sponsors | TOV Archives
Copyright © 2019 Velocitech Inc. All information contained herein remains the property of Velocitech Inc.
The Temple of VTEC is not affiliated with American Honda Motor Co., Inc. TOV Policies and Guidelines - Credits - Privacy Policy
29