Restoring power to an old engine (maybe some economy too)

[ConnClark]

I stumbled across this last night. They work at restoring power to an old engine. Some of this (like the new plugs and wires) would translate to better economy too. I was also surprised to see the snake oil work so well.

https://www.youtube.com/watch?v=efIJHf7h5kI

[Xist]

They mentioned testing it eight times and taking the highest figure, did they do that before making any changes, and then after each one? I would not have thought taking the highest figure was scientific, but they were consistent with it, right?

[niky]

They're not telling us what fuel is in the system. It may also be likely that the cleaner is an octane booster.

Also, they should have done the air filter and oil separately. As far as many of us know, a clean air filter won't do jack for extra power.

[Xist]

But there were leaves in the intake!

[ConnClark]

Originally Posted by niky

They're not telling us what fuel is in the system. It may also be likely that the cleaner is an octane booster.

Also, they should have done the air filter and oil separately. As far as many of us know, a clean air filter won't do jack for extra power.

If you look up Redex fuel additive it is a detergent and not an octane booster.

Also a clean air filter will increase power on a gasoline engine because it allows more fuel/air mixture into the cylinders.

[mcrews]

Originally Posted by ConnClark

If you look up Redex fuel additive it is a detergent and not an octane booster.

Also a clean air filter will increase power on a gasoline engine because it allows more fuel/air mixture into the cylinders.

actually, not so much.
there is a study done with a completely clogged air filter. Im just too lazy to search for it

ok, im not THAT lazy!!!!

http://ecomodder.com/forum/showthrea...ter-12590.html

[ConnClark]

Originally Posted by mcrews

actually, not so much.
there is a study done with a completely clogged air filter. Im just too lazy to search for it

ok, im not THAT lazy!!!!

http://ecomodder.com/forum/showthrea...ter-12590.html

For power it does make a difference

"The simulated clogged filter significantly affected vehicle performance, increasing the time to accelerate from 20 to 80 mph by 0.6 to 1.7 seconds on the three vehicles. The Outlet DP measured for each vehicle was sufficient for setting a common air filter indicator to the “change” or “clogged” position. For each vehicle, the Outlet DP at some point exceeded 5 kPa and showed an increase over the clean filter in excess of 2.5 kPa, a common standard for defining a dirty air filter.5,9–11"

[Xist]

Did you see the filter? It did not look very dirty!

[ksa8907]

If you want to restore power to an old engine, pull the intake manifold and clean it and the back of the intake valves. The ability of a dirty air filter to restrict flow pales in comparison to coked up intake valves.

[ConnClark]

Originally Posted by Xist

Did you see the filter? It did not look very dirty!

Did you see the leaves in the airbox? Leaves don't flow well when pressed up against a filter.