HARD CORE PISTON TECH:
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- Опубликовано: 21 окт 2024
- I GO THRU THE DETAILS OF WHY THE INTAKE VALVE RELIEF LIFTS OR MELTS UNDER HEAVY NITROUS, BOOST OR LEAN HIGH COMPRESSION CONDITIONS!
I WILL FOLLOW THIS UP WITH FIXES TO THE CHAMBERS AND OR THE PISTONS.
TECHNICAL CALLS AND IF INTERESTED TEX ME @ 626-203-2712.
1/2 HOUR RATES @ $100.00
1 HOUR RATES @ $150.00
USUALLY GOES OVER TIME AND IT IS OK AS LONG AS THE INFORMATION IS CLEAR AND UNDERSTOOD.
PAY PAL UNDER BENALAMEDA@YAHOO.COM.
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Water on the windshield is a very good analogy. We've missed you buddy.
I did not plan that analogy until I was in front of the camera and figured it would be a good example. Thanks for your support as usual Hugh!
I get it, filling in the explanations of the old times that taught me. Now I'm an old timer. Thanks for reaffirming.
Thanks ben, ur the engine godfather
Thank you sir.
Great video again Ben. I would hate to think how much work and failures you've gone through to get you're knowledge to this level.
Had my share because of trying to make lots of power for any given combination and sometimes things do get wrong and there she goes! lol
On the other I have experienced more failure analysis when an engine comes to me with pieces hanging out or when they call me and bring the stuff together so I can safely take it apart and observe the wear patterns and stuff.
I appreciate your vast knowledge and experience. I studied internal combustion engine design in college. I wish our professor, was this knowledgeable, he was good, but didn't have anywhere the experience. Thanks for your channel.
Thanks John and we all come with varied experiences that hopefully we learned from mistakes...
Ben I was thinking and you know the very first step is easy.
Double the gallons per minute of coolant flow though the problem engine.
Thinking back 30 years ago working with Stock car guys Winston Cup engines 440 hp restricted plate 355’s needed 35 gals per minute of coolant to keep chambers 4:28 and head gaskets to live.
Now 740 hp no plates 355’s needed 55 gals of coolant to keep chambers and gaskets in one piece.
Now we as Drag racers us electric driven water pumps. Years ago brushed motors sucked today with brushless motors so much better. But thinking a step up to a crankshaft driven water pump would be step one.
Ok or add tubing in the water jackets to direct coolant to the intake pocket area of chamber AND also inside the block at the deck surface like on that BBC turbo deal.
I can tell you back in 1988 I worked with a close friend of mine on his BBC’s 557 cu” Supercharged that needed AV Gas to live.
After we got the first brand new Edelbrock water pumps before there went to market along with directional redirecting of coolant the engines where Happy on 89 pump gas simply by modifying and increasing coolant flow.
Oh they had cast iron Merlin Cylinder heads too. Never hurt a piston or head gasket and made same HP and torque as when run on AV gas.
I can tell you twin engine Marine application and going by memories 800 area on power but remember WOT for hours.
Like a camp fire make it burn better ADD fuel.
We need to ADD coolant to stop overheating of that area.
Sorry for long post just dumping my thoughts wish I was out by you we could be having fun.
Oh Dart blocks and Yes you need to drill coolant holes between cylinders approx 1” down from the deck.
M
Mr. Alameda , looking at the broken piston, the intake valve relief almost meets the depth of top ring groove making that piston weaker in that particular area... and with the lean issue you describe causing it to knock on the same area that is already weak, is disaster. Indeed not a good piston design for boosting with those large reliefs. A question though, would nitrous be worse or more forgiving in that situation? If I'm not mistaken I thing nitrous creates more cyl. pressure.
Thank you for sharing real world knowledge.
Thanks Larry.
Another very informative video brother. Great explanations and demonstrations. 10lb potato in a 2 lb bag hahaha u kill me bro. 😂 thanks for all you do for us buddy. TShirts are almost done. Ill be sending ya a package soon. Talk to ya soon sir. MaDeuce!
Looking forward Matt! I did not get your video and where did you send it?
Eat a scoop of peanut butter when you have hiccups. Works every time for me. Can you do a follow up video on possible solutions to this problem?
Ben Alameda, ur a smart guy!
Thanks!
Howdy Ben, your motorcycle rider comments reminded me of an old neighbor; he was a big guy who rode a medium size bike (motorcycle) and woiuld say he looked like an "Elephant on a peanut" Ed was a heck of good guy.
I figured we all get a laugh at the stuff we see! lol
Excellent video Ben. Many thanks Greg
Thanks as well!
Thanks for knowledge!
Thanks sir!
Great info. Thanks Ben.
Thanks Steve!
Thanks for the info. Also since the exhaust valves are hot I would think it helps to vaporize the fuel around them to burn easier in that area.
Vaporized fuel in that condition will also tend to combust faster compared to it in a semi liquified state. Surface "end gases" will help cool but the accumulation in and around the exhaust valve area really helps it as long as the valve margin is not extraordinarily thin, that it will glow and ignite a finely vaporize fuel state around that vicinity since it is already very hot.
I believe what you are saying. A poorly worked short turn makes for poor fuel distribution and hinders performance. I'm sure the piston life expectancy is somewhat related to the output level of the engine.
You are spot on and power potential comes with its risks and rewards!
Thanks Bem
Thanks Nick!
Ben Alameda, do you think more swirl will help with lean condition on intake side of the combustion chamber?
It "might" help on slower engine speeds but when it turns higher rpms, the heavier fuel molecules will want to travel in a straight line so it slams on the long side and combustion chamber wall. Completely bypassing the short side radius for the most part...
Ben I have been watching that Hot spot damage for many years. Happens less with small combustion chambers I tried to explain but everyone knew better. Perfect showing the BBC turbo piston damage from HEAT that’s it Just HEAT.
Question does the top of the cylinder show high temperatures at that location????
Just wondering if it does how about adding more coolant flow right at that area???
What about machining a few slots into the head surface on the opposite side of the OVER HEATED Intake area maybe .060” wide x .020” deep to help force rich mixture movement TOWARDS Leak Intake Area????
Just thinking out loud but it would have to help, maybe not enough but a place to start and it wouldn’t drop compression ratio enough to matter at all.
If you try let me know buddy.
Best to you always Ben.
Mike
I will be doing a future video highlighting things we can do so alleviate this situation and I am sure it will be a head turner.
@@benalamedaracing2765 👍
thank you for another great video, what do you think about thermal coating will that help?
Thermal coatings does help but i have seen others actually flake off with some kind of detonation so I would do researched before you go in all the way.
All of that damage looks like what I would call not enough ring gap for a boosted engine.
A lot of engine builders don't like a lot of ring gap and stop at 20/25 thou.
If you plan on running big boost (and I am assuming people know how to tune and aren't leaning out the mixture) you need to run at least 35 thou ring gap .
Am I missing something?
Not enough ring gap is also like you correctly stated a cause. However, on these piston shown, they were lean big time with the SBF P-38 heads as well as the piston ring location is too high with this nitrous engine from Street Outlaws.
Well said
Thanks Michael.
After watching your video I wud think maybe to keep timing at no more than 35 degrees and probably jet up 1 number higher for richer mixture,wat you think?
Depends on the engine and elevation you are at. What is the static altitude there and weather?
The hiccups for that long need to be checked out by a Dr.
It can be a indicator of greater problems like stroke. Ben doesn't blow this off go get it checked.
Agreed. I've been concerned Ben is unwell since he mentioned "they" have him on some good stuff. Ex-paramedic here.
Thanks guys appreciate your concerns and I have been in several tests and nothing really points anywhere and they are scratching their heads. Perhaps stress could be a factor???
I am building a Ford 400(M) Cleveland with a lot of the tips you have given out. My only issue is my elevation. 6000 ft to 8000 ft operating elevations. Right now, I am planning 12.4:1 static and 8.3 dynamic compression with .038 squish. I would like to get technical advice but need to know if you can account for my elevation in the build.
What weight is the vehicle because that will also matter. Then cam specs will be specific because of the altitude you are operating it at. What state and city are you residing?
@@benalamedaracing2765 5500 pound 1979 Ford Bronco. 5 miles from Buford Wyoming
Very good video Ben were running imca stock car class with a braswell holley performance 2 barrel,10.5to 1 comp,eq iron heads and the intake valves are breaking into pie shapes,exhaust are ok,high temp cylinder seems to be problem,we blown up 3 engines,any help wud be appreciated sir
Wow I got to see a picture of that intake valve to determine what may have caused it to do that. Are you doing accurate plug reading to verify your A/F ratios? I have seen many reading the plugs and saying they are spot on but actually too lean and slowly destroying their engines.
Thank you for replying back were running 355 sbc imca spec class stock car and hobby stock dirt track oval racing in phx arizona,elevation around1,086 to 1,755 we don't use a fuel air ratio gauge but definitely need to.some engines we biuld have Rhoads hydraulic lifters and are turning 7000 rpms,we're not seeing valve float issues,we're using pac valve springs.problem is to we think racers are not maintain fuel system's, pump and fuel filters enough
Oh and we're using ferrea and rev brand 5000 series race valves.
Baclofen 5 mg tabs will stop the hiccups doctor's prescription needed
Hey man too much alcohol fumes. Go to methanol😂
Good suggestion!