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Search: Posts Made By: Big Dave
Forum: Fossil Fuel Free 06-25-2021, 01:40 PM
Replies: 121
Views: 9,298
Posted By Big Dave
I'd say the IC engine has at least forty years of...

I'd say the IC engine has at least forty years of service life left.

1. They still don't have the range/charging problem beat. A 150 mile road trip takes as much planning as the Apollo program....
Forum: EcoModding Central 06-25-2021, 01:32 PM
Replies: 168
Views: 27,877
Posted By Big Dave
Good to see this classic rising again. ...

Good to see this classic rising again.

Sounds like the engine has lots of service left, but man! you gotta deal with that suspension. Rust never sleeps, y'now. Even in Dixie.

Here in the...
Forum: EcoModding Central 06-25-2021, 01:28 PM
Replies: 168
Views: 27,877
Posted By Big Dave
Oooooh! South Carolina to Vermont on old...

Oooooh!

South Carolina to Vermont on old tires and that suspension.

Better check your guts:brains ratio.
Forum: Aerodynamics 01-25-2020, 11:22 PM
Replies: 636
Views: 441,215
Posted By Big Dave
Apparently Michigan Vehicle Solutions is still in...

Apparently Michigan Vehicle Solutions is still in bidness (as of late January 2020) and selling their Aero-X caps.

Pricey as hell, but they seem to have worked out all the bugs and they appear to...
Forum: Aerodynamics 01-21-2020, 12:13 PM
Replies: 73
Views: 6,553
Posted By Big Dave
My self, I'd like something to replace these barn...

My self, I'd like something to replace these barn door trailer tow mirrors on my F350.

Someone (probably aerohead) posted a study that claimed 8% of the aero drag on cars is due to side-mounted...
Forum: EcoModding Central 12-20-2019, 10:53 AM
Replies: 43
Views: 6,858
Posted By Big Dave
What's your final gear ratio? That Cummins...

What's your final gear ratio?

That Cummins can live with a staggeringly low (numerically) ratio.

My 7.3 Powerstroke thrives of (3.08 x 0.8 =) 2.45:1 plus the ZF6-550's overdrive gear.

Low...
Forum: EcoModding Central 03-25-2019, 01:30 PM
Replies: 27
Views: 8,436
Posted By Big Dave
Jeez dude! I did that mod nearly 18 years ago. ...

Jeez dude! I did that mod nearly 18 years ago.

If memory serves it went from 19.3 to 19.8 MPG. It was my first ecomod.

I think the old stat was 190 degrees. The old school bus motors are...
Forum: Aerodynamics 07-25-2018, 11:46 AM
Replies: 17
Views: 4,000
Posted By Big Dave
This has given me an idea for another vehicle. ...

This has given me an idea for another vehicle.

I picked up a 2010 Crown Vic Police interceptor in an auction. Solid car but not the least bit aerodynamic. Classic three-box layout.

Despite...
Forum: Aerodynamics 07-25-2018, 11:36 AM
Replies: 17
Views: 4,000
Posted By Big Dave
Re: Post #9 I am sure that even though it...

Re: Post #9

I am sure that even though it doesn't fit the template, it is considerably better than nothing.

My old black monstrosity (see my avatar) was nothing more than a straight line from...
Forum: Aerodynamics 07-25-2018, 11:29 AM
Replies: 17
Views: 4,000
Posted By Big Dave
Re: Post #3 I did reach out to this outfit. ...

Re: Post #3

I did reach out to this outfit. They do exist. Looks like a sideline of a vehicle modification house. None of the gearheads in the Naptown area has ever heard of them.
...
Forum: Aerodynamics 03-29-2018, 02:27 PM
Replies: 24
Views: 9,252
Posted By Big Dave
I just ordered some of these for my P71 Crown...

I just ordered some of these for my P71 Crown Vic. 17" OEM steelies.

The Dzus is considered better for street use as the clips reduce the bending load on the covers while cornering. While more...
Forum: Aerodynamics 12-19-2017, 06:54 PM
Replies: 86
Views: 12,011
Posted By Big Dave
Yup. You found it. My EBPV would clog up...

Yup. You found it.

My EBPV would clog up and run in "warm-up" mode from September to April.

Like running with an exhaust brake. Its why so many diesel pickups get lower MPG in the winter...
Forum: Aerodynamics 12-11-2017, 01:46 PM
Replies: 86
Views: 12,011
Posted By Big Dave
I did the harpoon mod way back. Filling took...

I did the harpoon mod way back. Filling took forever before that.

But let's face it. Unless you've spent big bucks for a graduated fill column getting consistent fill-ups is an iffy thing...
Forum: Aerodynamics 12-09-2017, 12:27 AM
Replies: 86
Views: 12,011
Posted By Big Dave
If you know somebody that makes conveyor belt for...

If you know somebody that makes conveyor belt for a living, he will have a 15 ton press and some round dies. Much, much easier than drilling and looks nicer, too.

I didn't do any fancy fab. ...
Forum: Aerodynamics 12-08-2017, 12:44 PM
Replies: 86
Views: 12,011
Posted By Big Dave
I've been off this board for too long. I had...

I've been off this board for too long.

I had a 23 degree aerocap and while it may not have been optimum, it was damn effective. +3MPG over and open bed. Completely impractical: Limited bed...
Forum: Aerodynamics 01-18-2017, 10:39 AM
Replies: 42
Views: 5,988
Posted By Big Dave
I've had an air dam made of conveyor belt on my...

I've had an air dam made of conveyor belt on my truck for six years.

The stuff is nearly indestructible. No amount of road debris damages it. You can get aggressive about grade clearance, but...
Forum: Aerodynamics 09-28-2016, 03:22 PM
Replies: 15
Views: 3,116
Posted By Big Dave
I used 3/8" ripstop conveyor belt for my air dam....

I used 3/8" ripstop conveyor belt for my air dam.

The stuff is a bear to fabricate and not at all cheap, but it is flat indestructible. I've had it on my truck for over five years and and it is...
Forum: EcoModding Central 07-25-2016, 10:34 AM
Replies: 22
Views: 3,228
Posted By Big Dave
Can't beat a Ford Super Duty for room. I sit...

Can't beat a Ford Super Duty for room. I sit like a guy who is 6'10" and I have at least four inches clearance.

My F-350 diesel has been modded and I get 25-28 MPG all the time.
Forum: Aerodynamics 06-21-2016, 11:41 AM
Replies: 4
Views: 2,525
Posted By Big Dave
This is one place street cars have an advantage...

This is one place street cars have an advantage over race cars. I can't think of one sanctioning body that allows active aero features. Not since Jim Hall's Chapparals back in the 60s.

The...
Forum: Aerodynamics 06-13-2016, 01:37 PM
Replies: 51
Views: 15,059
Posted By Big Dave
You see these things all the time these days on...

You see these things all the time these days on the superslab. If they didn’t work, truckers wouldn’t bother with them.

Semi Truck TrailerTail® Fuel Savings Technology | STEMCO...
Forum: EcoModding Central 06-13-2016, 01:27 PM
Replies: 17
Views: 9,382
Posted By Big Dave
Aero mods are always effective. there have been...

Aero mods are always effective. there have been a number of folks on this forum working on van aero mods. My suggestion: You now see the big rigs with four-petal tail fairings. You could make...
Forum: EcoModding Central 01-07-2016, 02:51 PM
Replies: 5
Views: 1,125
Posted By Big Dave
Have You Guys Seen This One?

A spark-ignition engine with the efficiency of a diesel.

https://www.youtube.com/watch?v=u0uPmrSRM7w

https://www.youtube.com/watch?v=-yo6xuVS7tg

It’s rather like taking the Atkinson engine...
Forum: Aerodynamics 10-30-2015, 12:50 PM
Replies: 392
Views: 156,070
Posted By Big Dave
Looking at Post #345, I am taken how similar you...

Looking at Post #345, I am taken how similar you cap looks to the black apparition I had on mine for a few years. See my avatar - its the last surviving picture of it.

The BZP cap has a better...
Forum: Motorcycles / Scooters 10-30-2015, 12:07 PM
Replies: 2,104
Views: 476,480
Posted By Big Dave
I saw this one. Maybe someone else has posted...

I saw this one. Maybe someone else has posted it in the big thread.

https://www.youtube.com/watch?v=vobEBqEISh8

OK, it has made it at least to the fourth prototype, so it is not totally...
Forum: EcoModding Central 09-17-2015, 12:57 PM
Replies: 104
Views: 25,494
Posted By Big Dave
I use synthetic oil and a bypass filter. ...

I use synthetic oil and a bypass filter.

Never noticed it to improve fuel mileage but I do go two years between oil changes. The lab says I'm discarding good oil but 30,000 miles on oil makes my...
Showing results 1 to 25 of 127

 
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