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Search took 0.01 seconds. Search: Posts Made By: mwebb
Forum: Aerodynamics 07-25-2019, 12:54 AM
Replies: 24
Views: 3,619
Posted By mwebb
why not just try it ? many times in the...

why not
just try it ?

many times in the world experts will tell you the math says it can not work

but
in reality the math can lie , the math is wrong on many things .
because much of...
Forum: Hybrids 05-25-2018, 12:01 AM
Replies: 14
Views: 2,019
Posted By mwebb
2002 prius 50k miles

i recently bought a 2002 prius with 50200 miles ,
it had no faults in any system and no warning lights for anything
passed NYS safety and emissions inspections

was good for 100 miles ...
Forum: Aerodynamics 07-15-2017, 01:56 AM
Replies: 40
Views: 27,719
Posted By mwebb
flickr is still free

https://farm7.staticflickr.com/6142/5925003482_b887423e40_o.jpg (https://flic.kr/p/a2zc7s)1996 Geo Metro VW wheel protector cut and trimmed 2 (https://flic.kr/p/a2zc7s) by mike of the mountain...
Forum: The Lounge 02-02-2015, 11:15 PM
Replies: 70
Views: 9,376
Posted By mwebb
creating more iced tea

so
operating under the HOAX of global warming

if / when the ice
in your glass of iced tea melts then

ultimately the level in your glass will
go up / increase

so
Forum: The Unicorn Corral 03-16-2014, 10:08 PM
Replies: 87
Views: 17,247
Posted By mwebb
there is no reason to test a K & N

there is no reason to test the K & N

other testing from different sources was performed with various filters
and
with no filter at all

with and without
up to a 50% restriction imposed by...
Forum: EcoModding Central 05-07-2013, 11:44 PM
Replies: 36
Views: 8,453
Posted By mwebb
yes

i saw this too , i have it bookmarked and i was going to post it here

you got there first

this will save most of the weight of the battery
whatever the battery size
it may need a small...
Forum: EcoModding Central 05-07-2013, 11:24 PM
Replies: 53
Views: 46,873
Posted By mwebb
clarify

just to clarify
the evidence as it stands based on your own statements

you have just spent $350 to become a licensed retailer / re seller
of something
that you your self have no idea if...
Forum: EcoModding Central 05-06-2013, 11:28 PM
Replies: 46
Views: 8,435
Posted By mwebb
185 60 15 or 195 50 15 wheels tires

a later Geo Metro with the rear sway bar
and
15" wheels from a honda or what ever else has 4 x 114.3 pattern
and the list is very long

handles very well at speed / such as it is ,
but
...
Forum: EcoModding Central 05-06-2013, 10:55 PM
Replies: 53
Views: 46,873
Posted By mwebb
"Your mind is like a parachute, it only works...

"Your mind is like a parachute, it only works when it's open."
your quote above is false -
and can even be dangerous for those who are blissfully un able to comprehend
certain
facts

you...
Forum: EcoModding Central 04-06-2013, 09:08 PM
Replies: 2
Views: 2,676
Posted By mwebb
bad idea

in a G10 advancing the cam at all is a very bad idea
it seems like it should be a good idea
but
it is not

the exhaust lobes get advanced along with the intake lobes
and the end result is...
Forum: Instrumentation 03-28-2013, 11:14 PM
Replies: 25
Views: 13,463
Posted By mwebb
what car what system

so what is it that you are trying to monitor ?
what system ?
what car ?
OBD1 ? OBD2 ? Diesel ? Gasoline ?

it matters . i suggest that you pick only one to start with .
there will be a...
Forum: EcoModding Central 03-17-2013, 11:37 PM
Replies: 22
Views: 6,010
Posted By mwebb
no EGR at idle or WOT - use lambda sensor

VOLUMETRIC EFFICIENCY is what suffers at part throttle , compression is not changed , there is insufficient air fuel mixture to compress as
VOLUMETRIC EFFICIENCY has been reduced
increasing flow...
Forum: General Efficiency Discussion 03-10-2013, 11:09 PM
Replies: 14
Views: 4,592
Posted By mwebb
i do not understand your question , then again

i do not understand your question , then again
you do not have a question

your statement is false do not proceed with your experiment .

the answer is
AVERAGE
peak combustion pressure must...
Forum: The Unicorn Corral 02-05-2013, 12:08 AM
Replies: 71
Views: 32,388
Posted By mwebb
no, back pressure is bad almost always

..."Cars need [in many cases, for optimum use] back pressure"...

engines ?
do not need back pressure in the exhaust , less back pressure is always better (except during decel)
which is one...
Forum: Hypermiling / EcoDriver's Ed 02-01-2013, 09:13 PM
Replies: 6
Views: 1,876
Posted By mwebb
coast

assuming standard transmission
(3 pedals)
just coast .
in neutral , clutch released .
coasting does not waste kinetic energy the way that DFCO does

FE will be improved over what DFCO would...
Forum: EcoModding Central 10-30-2012, 11:38 PM
Replies: 27
Views: 7,581
Posted By mwebb
02 sensors do not measure or see 02

...."
If O2 sensor ?sees sees a bit less NOx, due to results of a cooler & denser EGR inert volume, then (perhaps) it knows it can advance timing more (more MPG)?...."

the 02 sensor does not /...
Forum: EcoModding Central 10-30-2012, 12:52 PM
Replies: 27
Views: 7,581
Posted By mwebb
EGR reduces combustion pressure

EGR primary function
is to reduce combustion pressure

EGR does this by diluting incoming Air fuel mixture with INert gas
exhaust gas by definition

by reducing combustion pressure ...
Forum: EcoModding Central 10-12-2012, 12:45 AM
Replies: 42
Views: 6,033
Posted By mwebb
as cat efficiency increases C02 % increases as well

on a cold engine
nox is zero

and
as cat efficiency goes up so does the percentage of C02 in the exhaust gases
about 12 to 13% cold and
about 15 to 16% when the cat is hot and operating as...
Forum: EcoModding Central 10-06-2012, 09:21 PM
Replies: 27
Views: 7,581
Posted By mwebb
oil - heater -

the coolant that circulates near the EGR may be used to
heat the intake manifold
as with many of the engines that have oil coolers with coolant circulating in them .
the coolant serves two...
Forum: The Unicorn Corral 09-08-2012, 10:54 PM
Replies: 61
Views: 29,830
Posted By mwebb
this pudding head is WRONG too two to

restricting air flow with dirty air filter can never change air fuel ratio and can never set a lean trim DTC
it is not even theoretically possible , you will know this when you understand what a ...
Forum: The Unicorn Corral 09-02-2012, 10:53 PM
Replies: 61
Views: 29,830
Posted By mwebb
yes - you are wrong again / still

"... @mwebb you make some pretty valid complaints but it is not "first of all"?
DO NO HARM .
tho I am not getting any errors E85 throws a warning light in my car. also were all...
Forum: DIY / How-to 07-22-2012, 11:48 PM
Replies: 28
Views: 11,383
Posted By mwebb
documented improvement

" Why is this not in the unicorn corral? It's unproven and totally speculation. "
http://farm4.staticflickr.com/3432/3869589018_ec05ef56c1_b.jpg

there is a documented improvement in fuel economy...
Forum: DIY / How-to 07-21-2012, 09:42 PM
Replies: 28
Views: 11,383
Posted By mwebb
tests and test results GEO Metro 10G

do singh grooves improve FE / BSFC in a Geo Metro 10G
yes
do they improve power output ?
no

67 pages of test description and test results
...
Forum: EcoModding Central 07-01-2012, 06:35 PM
Replies: 63
Views: 19,735
Posted By mwebb
wrong

this is a CROCK O POOH
the EPA IATn BITOG AutoSpeed have all performed A B testing with various
"alleged performance" air filters including K & N
none of them (the tested filters) increase flow...
Forum: Instrumentation 07-01-2012, 12:04 AM
Replies: 1
Views: 2,494
Posted By mwebb
Decel Fuel Cut Off DFCO

DFCO does not function if
the ECM does not see closed throttle

so
focus on your ThrottlePositionSensor TPS and or closed throttle switch
Showing results 1 to 25 of 74
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