Most people who have tried PG have reported about a 10 degree increase in their overall coolant temps, but what we don't know is how its measured or how accurate they are... nor can we know the weakest point of each individual cooling system to see where these numbers are coming from.
I used...
I politely disagree. Higher engine temps can have big benefits - reduced friction, better MPG, greater thermal efficiency.
The traditional thinking is that engines overheat and get damaged at 240F, but we know that its the boiling that allows superheating of areas of an engine causing damage...
So, is there a benefit, a drawback, or is it a wash?
Here is what I'm looking at:
Benefits: reduced corrosion from lack of water, reduced nucleate boiling, reduced (or eliminated) diesel-induced cavitation.
Drawbacks: potential for increasing internal engine temps (oil, iron, etc) to the...
I'm trying to do some math, but would settle for some real-world simplicity since engines don't run on math. :)
I'm trying to verify some empirical claims from a well-known coolant manufacturer that sells non-aqueous propylene glycol coolant. I'm thinking about using it in my own personal tow...
Hansmeister... yes I've thought about using plywood or balsa that is skinned with something to prevent the impact and flex damage, but the likelyhood of water ingress to the wood substrate is still pretty high. So far there have been enough promising FRP and other synthetic materials that...
Looks like FRP bar grate might not be any weight savings, but it sure seems like a pretty permanent fix. I found some distributors that have a pre-bonded 1/8" laminate on top. I'm just waiting to hear back from them re: spans and weight capacity.
My problem with plywood is that (in his application) it only lasts a few years. Dropping an anchor on the floor or the flexing of a pedestal seat causes fissures and cracks to develop, and then its just a matter of time until its a rotten mess.
I refuse to put foam back in. I've never pulled...
Good call on the airline salvage...
The aft end of the stringers are doweled and epoxied to the transom. The front is currently tied together with a 3/4" plywood bulkhead as a temporary support until I finish designing the floor.
The original design was this way but it didn't suit me. I will...
It isn't quite a commercial fishing boat but its used as such from time to time. Its a 19' Baja that the customer is completely in love with. He fishes recreationally about 8 hours a day and the rest of the time its used as a utility/rescue/repair boat for a fishing lodge. In a pinch it also...
I like that idea a lot. My concern with the stainless is denting. It would only take a few times setting down the anchor to make the deck distort/conform to the bar grate.
... but maybe some FRP bar grate with FRP sheet bonded to it
This is grate... I mean great. My knowledge of materials...
I'm engineering a new boat floor for a customer's boat. He uses the boat very heavily and he's tired of replacing the flooring every few years and wants something a bit more permanent. I've discussed some FRP panels and some monocoque honeycomb skinned panels that would do well, but the cost...
Changing the spark location changes where the flame front begins. In effect you have shortened the distance from where the flame starts to the piston crown. Mean Effective Pressure theoretically shouldn't change, but you may need to play with initial lead. My guess is that you will need more...
Let's also not forget.... how will you get fuel to evaporate at such cold temps? Might be overkill.
Carb - no way.
EFI - maybe, but still too cold for practical max power.
