Miata Mailing List: September 1996, Message #0030
sponsored by



     



   From: SGOODE@ccvax.fullerton.edu

Subject: Dyno results: Nology and HKS air filter

   Date: Sat, 31 Aug 1996 12:25:56 -0500



   Some dyno results that may be of interest:

1.  Nology Hotwires

  When I first installed my Nology hot wires I thought I felt a 

performance improvement.  Recently, however,  I have been doing 

a lot of dyno testing, and did several runs to compare the Nology 

hotwires, Nology power cores, and Silverstone plugs against a set 

of ultra ignition wires and NGK plugs.  The results were almost 

identical to those reported in the latest issue of the MCA magazine, 

namely a small DECREASE in power and torque throughout the 

power band.  Jim MacFarland at MechTech claims that he has yet 

to see any improvement on any car that he has dyno'd even the 

Mustangs on which they are supposed to produce significant power 

increases.



2.  HKS super power flow air filter

  As some of you know, over the past year or so I have been 

developing the aerodyne kit on my car to develop 200 HP at the rear 

wheel.  Part of the modifications have enabled me to 

remove the stock air flow meter and design a new air intake so that 

the air filter sits right behind the NACA duct.  In separate tests 

during the dyno runs mentioned above we also compared the 

difference between this set-up using an HKS super power flow air 

filter, and the standard BEGI set up (with the air flow meter 

removed).  My BEGI airbox has just one slit in it to let air in, and 

most people's reaction is that this is a restrictive part of the system.  

However, on the dyno (using a large fan to simulate air flow) there 

was very little difference between the two set-ups.  The HKS air 

filter did produce marginally more power throughout the rpm range, but at peak this was only about 3 HP.

Stephen W. Goode

/















\014

==============================================================================