Go Back   EcoModder Forum > Search Forums
Reload this Page Search Results
Register Now
 Register Now
 

Page 1 of 2 1 2
Showing results 1 to 25 of 30
Search took 0.02 seconds. Search: Posts Made By: JohnAh
Forum: Aerodynamics 12-30-2019, 11:53 AM
Replies: 3
Views: 1,531
Posted By JohnAh
ecoXtrm - vintage two-stroke Saab 96 with roof extension from Saab 95

Hi all aero-modders! I have two crazy Saab rides already, plus something of a Frankenstein body on wheels that i finally think I know what to do with. Extreme ecodriving have been a hobby of mine...
Forum: Aerodynamics 04-18-2018, 09:08 AM
Replies: 80
Views: 27,130
Posted By JohnAh
My personal real world report: I've been...

My personal real world report:
I've been hypermiling my old Saab for some years now, starting quite easy with reducing speed and changing over all gearing ration by changing tyre dimensions and...
Forum: General Efficiency Discussion 12-21-2016, 03:50 PM
Replies: 66
Views: 11,429
Posted By JohnAh
I hope I have learned something after 30 years of...

I hope I have learned something after 30 years of general dedication to cars and engines, making my own turbo conversion once, some crazy engine modifications and having succeeded to reach and repeat...
Forum: EcoModding Central 11-26-2016, 03:26 PM
Replies: 33
Views: 9,927
Posted By JohnAh
One way of reducing both pumping losses and...

One way of reducing both pumping losses and friction is to remove some pistons and keep the corresponding valves closed. I did so with a little Fiat 127 some years ago, with 10-15% improved fuel...
Forum: The Lounge 01-14-2016, 08:45 AM
Replies: 62
Views: 11,166
Posted By JohnAh
I do it just for the evil laughs, the...

I do it just for the evil laughs, the schadenfreude against the BMW-strebers who always has to be first to the next traffic light! -They are as quick on the throttle as they are total losers at...
Forum: Success Stories 08-13-2015, 02:56 PM
Replies: 9
Views: 7,823
Posted By JohnAh
I got 4,16 L100 today, thats over 56 mpg (US)! I...

I got 4,16 L100 today, thats over 56 mpg (US)! I have deepened the B&G cycles a bit and reduced cycle top speed from almost 90 km/h to just over 80. The result strictly by numbers is even better, but...
Forum: Success Stories 08-08-2015, 08:36 AM
Replies: 9
Views: 7,823
Posted By JohnAh
+50 mpg (US) with 40 year old Saab 96

It's always nice to find a new place for bragging! :)
I have had my 1975 Saab 96 V4 "Phantom Blot" ("Spökplumpen" in swedish, after the Disney character) four or five years now. It's an old beaten...
Forum: Aerodynamics 06-17-2015, 11:09 AM
Replies: 54
Views: 21,554
Posted By JohnAh
The 1964 "short nose" 2-stroker project have not...

The 1964 "short nose" 2-stroker project have not advanced a bit since my first post here, and I still have not made the slightest aeromod on my 1975 V4. (life has it't priorities) Fuel efficiency...
Forum: Aerodynamics 06-17-2015, 07:52 AM
Replies: 132
Views: 36,155
Posted By JohnAh
Oops, I just realised that I've kept making the...

Oops, I just realised that I've kept making the same conversion error from L100 to mpg for a long time. The converter I've used was set to imperial gallon, not to US.

My driving last month gives...
Forum: Aerodynamics 06-17-2015, 06:40 AM
Replies: 132
Views: 36,155
Posted By JohnAh
Burn & glide should offcourse be combined with...

Burn & glide should offcourse be combined with DWB, driving without brakes. The basic concept is that using the throttle is no sin, in that your expensive fuel is traded for the forward motion you...
Forum: Aerodynamics 06-17-2015, 05:58 AM
Replies: 132
Views: 36,155
Posted By JohnAh
Quick answer, I have not read the thread beyond...

Quick answer, I have not read the thread beyond that point above:

A quick and easy compensation for dropping out of the BSFC sweet-spot is to practice "burn & glide" (also "pulse & glide" or "burn...
Forum: Success Stories 05-11-2015, 08:42 AM
Replies: 26
Views: 5,613
Posted By JohnAh
The way I perform the B&G, (B&C, P&G or whatever...

The way I perform the B&G, (B&C, P&G or whatever names they call it) I accelrate with about 80% throttle to 85 km/h (53mph), turn the engine off, glide down to 60-70 km/h (35-45 mph) and repeat the...
Forum: EcoModding Central 03-26-2015, 04:33 PM
Replies: 61
Views: 10,017
Posted By JohnAh
The craziest ecomod I have tried was when I...

The craziest ecomod I have tried was when I lobotomised the engine in my previous car, a little Fiat 127. A conrod big-end bearing seized and I could not find a replacement engine cheap and quick...
Forum: EcoModding Central 03-24-2015, 02:47 PM
Replies: 61
Views: 10,017
Posted By JohnAh
I drive a 1975 Saab 96 V4 and they can easily...

I drive a 1975 Saab 96 V4 and they can easily consume over 8 litres per 100 km (35 mpg) while following the traffic average on highway mixed with city driving. My consumption made a steady drop to 7...
Forum: Aerodynamics 08-12-2014, 02:21 PM
Replies: 54
Views: 21,554
Posted By JohnAh
The "ears" on the DKW posted by Aerohead looks...

The "ears" on the DKW posted by Aerohead looks terribly silly. I guess they can improve stability in high speed but they must also incrase sidewind sensitivity. Saab may have been designed by...
Forum: Aerodynamics 08-08-2014, 09:49 AM
Replies: 54
Views: 21,554
Posted By JohnAh
I'm not skilled with the pen but I played a...

I'm not skilled with the pen but I played a little with a curvature-whatever (...it's called in english) just to get a hint of what my latest ideas would look like.

The first step is to create...
Forum: Introductions 08-07-2014, 01:36 PM
Replies: 48
Views: 22,836
Posted By JohnAh
CitroX, your car looks really great! 4.5 L100 is...

CitroX, your car looks really great! 4.5 L100 is definitely a nice figure! How is your driving style? Do you follow the traffic stream and speed? Do you plan your driving for DWB (driving without...
Forum: Aerodynamics 08-06-2014, 02:39 PM
Replies: 54
Views: 21,554
Posted By JohnAh
My 4.5 (or actually 4.4 but as I don't like to be...

My 4.5 (or actually 4.4 but as I don't like to be disappointed I adjusted the figure slightly) is a personal best from last fill-up. It's a slight improvement from the last couple of periods and even...
Forum: Aerodynamics 07-31-2014, 01:15 PM
Replies: 54
Views: 21,554
Posted By JohnAh
Here's some quick-n-dirty illustrations of my...

Here's some quick-n-dirty illustrations of my aeromod plans.
The first is like a "window adaptor" that fits in the place of the original window. It'll be made of welded steel with a small oval...
Forum: Aerodynamics 07-31-2014, 01:05 PM
Replies: 4,286
Views: 1,425,140
Posted By JohnAh
Here's Jari Luoma at Facebook: ...

Here's Jari Luoma at Facebook:
https://www.facebook.com/jari.luoma.1?fref=ts
Forum: Aerodynamics 07-31-2014, 01:04 PM
Replies: 4,286
Views: 1,425,140
Posted By JohnAh
The bronze lowrider is "Helga", a Saab 96 V4 from...

The bronze lowrider is "Helga", a Saab 96 V4 from the 1970's, customized by Jari Luoma in Finland. The roof is definitely chopped, but I can't figure out how. The rear side windows are definitely not...
Forum: Aerodynamics 07-31-2014, 12:57 PM
Replies: 54
Views: 21,554
Posted By JohnAh
Oh nice, the bronze car is "Helga", a Saab 96 V4...

Oh nice, the bronze car is "Helga", a Saab 96 V4 customized by Jari Luoma in Finland. It's absolutely fabulous! I don't know anything about it except for the looks. Probably a bit better...
Forum: Aerodynamics 07-31-2014, 10:21 AM
Replies: 54
Views: 21,554
Posted By JohnAh
Here's a quite good photo (not mine) of how the...

Here's a quite good photo (not mine) of how the rear end looks:
http://saabklubben.nu/sites/default/files/images/9640.jpg

The fact that Saab also build airplanes is clearly seen in the design of...
Forum: EcoModding Central 02-10-2013, 05:09 PM
Replies: 149
Views: 60,916
Posted By JohnAh
I can't wait to read more about this project! For...

I can't wait to read more about this project! For many years I have thought of making av reverse trike from a small front-drive car. I have a tiny 1959 Heinkel Kabine 3-wheeler...
Forum: Motorcycles / Scooters 11-05-2012, 08:54 AM
Replies: 385
Views: 200,099
Posted By JohnAh
To put it short: I think the Honda C90 project...

To put it short: I think the Honda C90 project can do well despite heavy weight but those fat tyres must be inflated to high pressure (increasing wear in the center) and the gearing ratios may be the...
Showing results 1 to 25 of 30
Page 1 of 2 1 2

 
Forum Jump

Contact Us - EcoModder.com - Archive - Recent Posts - Top

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com