Hummer Forums by Elcova - gas mileage and catalyzer mods

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- Technical Discussion and Customizing your H2 (http://www.elcovaforums.com/forums/forumdisplay.php?f=5)

- - gas mileage and catalyzer mods (http://www.elcovaforums.com/forums/showthread.php?t=6954)

Ernie Italy

04-08-2006 05:36 AM

test at 60 mph --- 16 mpg

HummBob

04-08-2006 04:36 PM

NSANE

04-09-2006 01:45 AM

Quote:

Originally posted by PhilD:
So what did you do?

X2??????

saleen779

04-09-2006 01:18 PM

wtf is catalyzer mode????

working Hummer

04-09-2006 02:04 PM

working Hummer

04-09-2006 04:06 PM

I've learned if you wipe the bugs off of the front end you can get 16mpg because of better aerodynamics, BUT only at 60mph.

Kevin B

04-09-2006 05:25 PM

Quote:

wtf is catalyzer mode????

Im not sure but the topic is catalyzer MODS, get it

Steve - SanJose

04-10-2006 03:37 AM

fyi - H3 mpg at 80-85mph is 16mpg.

S.

KenP	04-10-2006 03:56 AM

Quote:

Originally posted by Kevin B:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">wtf is catalyzer mode????

Im not sure but the topic is catalyzer MODS, get it

? </div></BLOCKQUOTE>Probably a 2" hole drilled through it.

Ernie Italy

04-10-2006 04:50 AM

1 Attachment(s)

A standard catalyzer is ceramic and have 1200 cps (cell per square inch).
With a sports catalyzer you can have a 200 cps (as I have installed)... the output gas goes out more freely and performance and gas economy have benefit.. you can have a 4.33% in power and 13% in torque. Yes I know I have to tested and analyze , but take in consideration that is one of mods that use sports car.
When I have change my cats (change not modify and I can return to stock when I want) the same mods are do it on a Ferrari 340...

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