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Search took 0.03 seconds. Search: Posts Made By: RobertISaar
Forum: EcoModding Central 05-28-2016, 03:13 PM
Replies: 477
Views: 129,306
Posted By RobertISaar
putting a capacitor across a spark gap will cause...

putting a capacitor across a spark gap will cause the secondary side of the coil to spend more time generating a higher voltage before the air(or air/fuel mix, in the case of an engine) breaks down...
Forum: EcoModding Central 03-13-2016, 09:15 PM
Replies: 477
Views: 129,306
Posted By RobertISaar
if you didn't mention it, this was the first...

if you didn't mention it, this was the first thing to come to mind. adding any kind of fuel to replace the main fuel should help with fuel economy, but the rather fast burn rate of n20 should be...
Forum: EcoModding Central 12-16-2015, 03:12 PM
Replies: 129
Views: 42,597
Posted By RobertISaar
oddly enough, no. I remember changing the front...

oddly enough, no. I remember changing the front O2 sensor on a ~97 grand am that is a 1-wire unit from the factory. the post-cat sensor is heated though.

looking at the service manual now implies...
Forum: EcoModding Central 11-07-2015, 08:08 PM
Replies: 477
Views: 129,306
Posted By RobertISaar
I'm still amused by the combination of drag...

I'm still amused by the combination of drag radials and ecomodding. ecopowermodding?
Forum: EcoModding Central 10-15-2015, 01:24 PM
Replies: 477
Views: 129,306
Posted By RobertISaar
43/50? 86% is a solid B.

43/50? 86% is a solid B.
Forum: EcoModding Central 09-09-2015, 11:24 AM
Replies: 477
Views: 129,306
Posted By RobertISaar
you're using two sources of fuel(energy).... more...

you're using two sources of fuel(energy).... more or less what a hybrid powertrain does. should all of those have their calculations adjusted?

being able to easily represent multiple fuel usage...
Forum: EcoModding Central 09-05-2015, 12:30 AM
Replies: 477
Views: 129,306
Posted By RobertISaar
intake pressure exceeding exhaust pressure is...

intake pressure exceeding exhaust pressure is where magic happens.
Forum: EcoModding Central 08-08-2015, 08:01 PM
Replies: 477
Views: 129,306
Posted By RobertISaar
window weld is still super stiff in comparison to...

window weld is still super stiff in comparison to the stock rubber, but actual poly inserts are just... harsh in operation with every vehicle I've been in that used them.
Forum: EcoModding Central 07-04-2015, 10:21 AM
Replies: 477
Views: 129,306
Posted By RobertISaar
sleeving down or destroking to half of the...

sleeving down or destroking to half of the original displacement would be rather extreme(though with a head/cams intended for a 2-liter, it would probably make quite the screamer)... perhaps...
Forum: EcoModding Central 06-15-2015, 01:57 PM
Replies: 28
Views: 5,854
Posted By RobertISaar
stoich would be hottest with perfect...

stoich would be hottest with perfect mixture/atomization characteristics, but that isn't the case with any engine that I'm aware of(or at least, not outside of a very narrow RPM/load range). you'll...
Forum: EcoModding Central 05-21-2015, 12:03 PM
Replies: 477
Views: 129,306
Posted By RobertISaar
with how much fabrication you've gone through.......

with how much fabrication you've gone through.... you could consider a new intake manifold, one with split intake runners that would allow you to shut off all flow of air to one of two intake valves...
Forum: EcoModding Central 05-20-2015, 12:04 PM
Replies: 477
Views: 129,306
Posted By RobertISaar
could do something neat like airbags that...

could do something neat like airbags that inflate/deflate based on vehicle speed to get the car lower at high speeds and jack it up at lower ones? I seem to remember that getting used quite a bit in...
Forum: Hypermiling / EcoDriver's Ed 05-10-2015, 11:26 AM
Replies: 24
Views: 4,472
Posted By RobertISaar
this is possibly why or at least contributing....

this is possibly why or at least contributing. fuel gauges are not always linear, though certain vehicles are far worse offenders than others. every GM vehicle I've been in likes to hang onto Full...
Forum: EcoModding Central 01-02-2015, 06:40 PM
Replies: 477
Views: 129,306
Posted By RobertISaar
better down than up. those don't look like...

better down than up.

those don't look like they would add significant downforce, but they look like they would remove some potential for upforce.
Forum: EcoModding Central 10-13-2014, 10:12 PM
Replies: 477
Views: 129,306
Posted By RobertISaar
no boost, no resulting rise in airmass temp from...

no boost, no resulting rise in airmass temp from compressing air.

i would say you'll be fine as long as you don't start seeing more than atmospheric air pressure in the intake.
Forum: EcoModding Central 07-11-2014, 12:14 AM
Replies: 10
Views: 2,033
Posted By RobertISaar
a k&n is great if you hate efficient...

a k&n is great if you hate efficient filtering.
Forum: The Lounge 05-21-2014, 01:41 PM
Replies: 44
Views: 5,796
Posted By RobertISaar
if i were a less than fair person and bought a...

if i were a less than fair person and bought a car for $250...... and wanted to make a nice, quick return on my investment, i would do just that, pocket the money if the seller pays up and sell the...
Forum: Off-Topic Tech 04-29-2014, 11:48 AM
Replies: 10
Views: 2,451
Posted By RobertISaar
i've seen stuff like this pop up before..... and...

i've seen stuff like this pop up before..... and i just ran a calculation to be sure:

6000mAH(let's just call it 6 amp-hours)

12 amps for 1/2 hour
24 amps for 1/4 hour
48 amps for 1/8 hour...
Forum: EcoModding Central 03-07-2014, 03:19 PM
Replies: 9
Views: 1,522
Posted By RobertISaar
wait....... what is the goal here?

wait....... what is the goal here?
Forum: General Efficiency Discussion 11-18-2013, 04:40 PM
Replies: 10
Views: 3,977
Posted By RobertISaar
also, calculated oxygen consumption: 4,800...

also, calculated oxygen consumption:

4,800 liters of air per hour will essentially be drained of its oxygen for all 16 to be burning. air is roughly 20% oxygen, so ~960 liters of oxygen consumed...
Forum: EcoModding Central 11-07-2013, 10:37 AM
Replies: 12
Views: 1,969
Posted By RobertISaar
i might be able to believe it. designed properly,...

i might be able to believe it. designed properly, the air running past it while driving at a significant speed could generate enough of a vacuum in the exhaust to relieve some load on the engine...
Forum: Off-Topic Tech 11-04-2013, 08:16 PM
Replies: 10
Views: 2,247
Posted By RobertISaar
you MAY have luck bringing it back to life, but i...

you MAY have luck bringing it back to life, but i would ALWAYS be wary of how long it might last. i've "recovered" batteries that have been drained down to nothing before, some lasted hours, some...
Forum: DIY / How-to 11-04-2013, 06:44 PM
Replies: 34
Views: 8,334
Posted By RobertISaar
i don't know what kind of ESR the "Stinger" would...

i don't know what kind of ESR the "Stinger" would have, but let's assume it is something quite usable.... 1,666 watt-seconds could almost entirely replace a battery. if it were all drawn within 1...
Forum: EcoModding Central 10-28-2013, 11:07 AM
Replies: 26
Views: 4,785
Posted By RobertISaar
Moonwell's Gear Ratio Calculator...

Moonwell's Gear Ratio Calculator (http://efi.moonwell.com/gears.php)

that is the gear calculator i've been using for years now. it's nice to see all of the math done automatically and graphed.
Forum: EcoModding Central 10-14-2013, 07:54 PM
Replies: 269
Views: 98,060
Posted By RobertISaar
i see no reason to force my trans to run hotter?...

i see no reason to force my trans to run hotter? the 4T60 series of transmissions don't take kindly to more heat than necessary. in the winter, 150-160*F trans temps are what i see after a long...
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