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Search: Posts Made By: GasSavers_Bruce
Forum: Experiments, Modifications and DIY 01-17-2007, 04:19 AM
Replies: 75
Views: 27,490
Posted By GasSavers_Bruce
That'd be my recommendation. I'd tend to...

That'd be my recommendation.

I'd tend to think deactivating 1 and 4 would be preferable over 2 and 3; 2 and 3 should run a bit hotter than 1 and 4, since they're adjacent to each other, and...
Forum: Experiments, Modifications and DIY 01-16-2007, 10:57 AM
Replies: 75
Views: 27,490
Posted By GasSavers_Bruce
The carb just sits on top of the engine and mixes...

The carb just sits on top of the engine and mixes air and fuel. It doesn't care much where it goes.



GM did a concept car based on this a few decades back, though it was two larger engines...
Forum: Experiments, Modifications and DIY 01-14-2007, 04:17 PM
Replies: 75
Views: 27,490
Posted By GasSavers_Bruce
I mentioned earlier that my `78 (carbureted)...

I mentioned earlier that my `78 (carbureted) Malibu got its best mileage with a couple of cylinders effectively deactivated by worn-out cams...if you wanted to simulate this on your P/U and can...
Forum: Experiments, Modifications and DIY 01-13-2007, 11:56 AM
Replies: 75
Views: 27,490
Posted By GasSavers_Bruce
...and deactivated cylinders separated by two...

...and deactivated cylinders separated by two strokes instead of one.

My car probably wouldn't work well for this, since it's an automatic; with more throttle, the ECM unlocks the TCC clutch and...
Forum: Experiments, Modifications and DIY 01-13-2007, 11:56 AM
Replies: 75
Views: 27,490
Posted By GasSavers_Bruce
...and deactivated cylinders separated by two...

...and deactivated cylinders separated by two strokes instead of one.

My car probably wouldn't work well for this, since it's an automatic; with more throttle, the ECM unlocks the TCC clutch and...
Forum: Experiments, Modifications and DIY 01-12-2007, 10:41 AM
Replies: 75
Views: 27,490
Posted By GasSavers_Bruce
I didn't know about the previous post on the...

I didn't know about the previous post on the subject, but found it today:

https://www.gassavers.org/showthread.php?t=48&page=3

Bottom line was 24.3 MPG with fuel cut to two cylinders vs 26-28...
Forum: Experiments, Modifications and DIY 01-11-2007, 12:45 PM
Replies: 75
Views: 27,490
Posted By GasSavers_Bruce
A `92 isn't new enough to use a Scangauge...did...

A `92 isn't new enough to use a Scangauge...did you verify the decreased FE at the pump?

I'd expect more throttle would be needed, but that doesn't necessarily indicate lower efficiency...a good...
Forum: Experiments, Modifications and DIY 01-11-2007, 12:18 PM
Replies: 75
Views: 27,490
Posted By GasSavers_Bruce
I believe I've already spotted a car in the...

I believe I've already spotted a car in the Garage where the owner swapped out a gas for diesel and had a huge increase in FE, but I can't remember whose. I know I've seen at least a couple with...
Forum: Experiments, Modifications and DIY 01-11-2007, 10:11 AM
Replies: 75
Views: 27,490
Posted By GasSavers_Bruce
Well yeah, a turbocharged 700-1000cc engine would...

Well yeah, a turbocharged 700-1000cc engine would probably work great in my car, but it takes a lot more time, money, effort, knowledge, etc. to put in, and it'd ruin any resale value of the car...
Forum: Experiments, Modifications and DIY 01-11-2007, 07:12 AM
Replies: 75
Views: 27,490
Posted By GasSavers_Bruce
Temponut, did you get black smoke when you pulled...

Temponut, did you get black smoke when you pulled two injectors?
Forum: Experiments, Modifications and DIY 01-10-2007, 11:23 AM
Replies: 75
Views: 27,490
Posted By GasSavers_Bruce
Reviewing this thread again, and thinking about...

Reviewing this thread again, and thinking about what it would take to effectively reduce a 4-cylinder PFI to 2 without major modifications, I've reached a few conclusions:

- If you want a...
Forum: Experiments, Modifications and DIY 01-03-2007, 12:34 PM
Replies: 75
Views: 27,490
Posted By GasSavers_Bruce
I think you guys may be missing the point WRT...

I think you guys may be missing the point WRT hypermiling...an _automatic_ cylinder deactivation, like an automatic transmission, won't affect fuel economy as well as a manual one because the...
Forum: Experiments, Modifications and DIY 12-22-2006, 10:19 AM
Replies: 75
Views: 27,490
Posted By GasSavers_Bruce
What if you were to merely block off the ports on...

What if you were to merely block off the ports on the intake manifold by sandwiching a steel plate between the intake manifold and head rather than disabling the valves? In theory, this should...
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