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Forum: EcoModding Central

06-13-2015, 12:44 PM

Replies: 87

Inexpensive H4 / 9003 / HB2 LED headlights ($32) - trying on the Prius & motorcycle

Views: 18,407

Posted By topcat

To get a replacement technology for a filament,...

To get a replacement technology for a filament, the light emitting area&volume of the new technology needs to match that of the old filament.
This is reasonably feasible with an arc (HID).
In my...

Forum: EcoModding Central

05-27-2014, 12:50 PM

Replies: 20

Easy weight reduction. (remove window stopper blocks)

Views: 5,870

Posted By topcat

This is a terrible idea for many obvious reasons.

This is a terrible idea for many obvious reasons.

Forum: EcoModding Central

01-09-2014, 06:24 AM

Replies: 50

HID bulbs in Halogen lamps fail govt test

Views: 9,660

Posted By topcat

mcrews, you say 3x the light is too much? Not so....

mcrews, you say 3x the light is too much? Not so.
I can legally buy and use +50% H7 bulbs, +80% bulbs, +90% bulbs and +120% halogen bulbs. +120% is 2.2x brighter.
How long before we see a +200%...

Forum: EcoModding Central

01-05-2014, 02:16 PM

Replies: 50

HID bulbs in Halogen lamps fail govt test

Views: 9,660

Posted By topcat

First off, I have an MSc in optics - but I don't...

First off, I have an MSc in optics - but I don't work in auto headlight industry. While there are good and bad HID kits (I have had both), I have to take issue with quite a lot of the information on...

Forum: EcoModding Central

07-09-2011, 11:25 AM

Replies: 35

spark plugs and fuel econ

Views: 7,044

Posted By topcat

www...

www ngksparkplugs.com/techinfo/spark_plugs/installation.asp#indexing

Quote:
Indexing

This is for racers only !!
Indexing refers to a process whereby auxiliary washers of varying thickness are...

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