Racers use alcohol for more power at the track. Now, Joe and Mike build the show's first high performance engine running on alcohol. After selecting special parts and building the engine, they'll dyno it to reveal the horsepower benefits.
Putting a great engine together is not as simple as they make it seem, there is so much more to assembling a race winning engine and to make it live .Not trying to bash anybody , it would take many episodes to show what goes into assembling a great racing engine, great video guys.
The engine need evacuation tubes ran from the valve cover breathers to the headers near the ends to draw the condensation out through the exhaust. The cooler fuel in alcohol creates vapor when running throughout the rpm range.
@@damon______ Obviously they don't make a 4/7 swap cam for motors that have it from the factory. The point is that GM spent millions in development on the LS and determined that the 4/7 swap was the best way for the firing order. Why would someone ignore the research and go with 18436572?
@@curvs4me just because the ls is newer doesn’t mean it’s better. I want to make good torque down loan and be able to drive it for more than a year. I don’t have money for a new lm7 every time I want to hit the gas. Tired of the sucky lifters and weak came chains. The one thing that wasn’t broken on the previous design they took a broke it
@@damon______ Head bolt pattern on the original is way better too. With modern head design and cams the OE small block in Dart or similar iron is more capable than the LS for big boost and big numbers.
@@curvs4me I would agree on the subject of boost for earlier designs being superior to the LS, the exception being the 6 bolt LSX/ LS Next head bolt pattern. They’re are people making huge numbers (2000+ hp/tq) with those and zero head related issues.
@John S high compression isn't needed. But it's either that or boost and that does = high compression. But your right the fuel system is needed also alcohol runs leaner so the carb has to be basically double up in jet sizes alcohol to gas is a 2:1 ratio alky 2 gas 1 = alky runs leaner and it corrodes rubber lines and steel lines it's stainless or the new plastic rubber braded lines. Also don't leave it set in the tank or the carb or the pump or injectors for a long period of time.
It's a riot, I got a super late model. Only thing that blows my mind is I only have 358 on alcohol pushing 950 to the rear wheels so they have so much potential not bring tapped
I wonder what that motor will make on race fuel ..? Just wandering I put a motor togather very very similar to that but I'm running 110 octane.13.7 to 1 compression.
I made 550 on 10:1 pump gas and a 236°@ .050 solid roller street cam and a low profile teamG to fit in a vette. On a conservative dyno! We did use the lighter/stronger I beam scat rods and a f-43 crank. That super V is to big and the cross section of those heads are prbly too small. The carb is to big and those rockers are nice for my 95' suburban. Infomercials for big corps and screwing the small builders that actually know what they're doing.
@@brentonk461 would've made that with the more efficient vic jr. your right my 13.5:1 414ci race motor with AFR 227's with that same super vic and 950 carb and similar cam made 710hp @6750 with 112 race gas. Both 414 and 383 dynoed with a driven water pump and fuel pump and the 383 had the 195cc comp AFR heads. The intake cc # means crap if the minimum cross section is to small. Their cam and induction are oversized for that head. Just infomercials to sell the sheep parts.
It was a cool episode, but I agree my 11.0 383 with a lunati 243/249 solid roller hasn’t been on the dyno, but according to the holley system it’s drinking 580 hp worth of fuel at 7k rpm, traps 88 mph in the 1/8th at 4700+pounds, those scorpion rockets worked on that motor for 30k miles before they were trash. Running comp ultra pro magnum xd’s now
None of it adds up. You can see at 9:20 it’s a sbc425030f05 piston which is 4.030”. Even with a zero deck and a 0.015 gasket it’s still only 11.8:1 with +5cc valve reliefs, and there is no way that engine is safe with a 15 thou quench. Going down to a 60cc head or using a 4.125 piston would get you in the 12.5:1 ballpark, but you still have that super tight quench.
As a chemist I wondering if the insanity set in prior to your discussions on methanol. While methanol is quite dangerous if ingested it isn't nearly as scary as you all make it out to be.
Well people do make moonshine and the higher temp you boil your mash then the more methanol can be produced but some people do ingest 1 percent methanol and but the higher percentage you ingest you could die instantly because of how it reacts with your body or could go blind if you’ve taken 2 percent or just a tad bit more
@@ethanvega9403 Death isn't instant with methanol especially when drinking moonshine contaminated with methanol. I'm not saying that methanol isn't dangerous just not nearly as dangerous as say hydrofluoric acid or a multitude of other chemicals. Drinking too much water can lead to death so caution is necessary with all chemicals.
been there done that the most reliable engine ever had it in a dirt late model in the late 90's turned it 7500 to 8000 it lasted 2 complete seasons @ 2 shows per week
It's not that you have to put a Evac system on an alcohol engine because it generates a lot of condensation inside of the engine do to the engine sweating from how cool it is. Edit but if you did install an evac system it would help get the moisture out of the inside of the engine quicker.
I’ve always wondered about running an engine on compressed Hydrogen gas rather than liquid gasoline The reason being that it has virtually no CO2 emissions Obviously it’s an expensive fuel that’s hard to extract but putting that aside I’d love to see what kinda power you can get from it Then again I’m no mechanic so what do I know
That cam is a lot underdone for those heads and compression. Also you shouldnt really need a girdle for only 7000rpm , and you could run way more compression than just 11:1 on methanol, most people I know are up around 14 - 15
I’ve heard E-85 and propane are optimized in that 14:1 15:1 range too. How about starting and warning up the engine on E-85 then switching to propane with a dual fuel system?
Patriot Performance also operates ProMaxx cylinder heads from the same business. Be careful with the ProMaxx heads. The Shocker 200 Ford FE heads that I bought from them were kinda slapped together. The installed heights on the springs varied from 1.825 to 1.869. Also the springs they put on there for hydraulic flat tappet cams are WAY TOO STRONG. They killed my lifters almost instantly. Very few minutes and the lifters were killed which put all kinds of metal in the motor and killed the crank and all the bearings and of course the cam.
I've always wondered. Methanol has substantially less energy than gasoline. I've wondered how it makes more power. Even ethanol has more energy, but still less than gasoline. I suppose you can put much more fuel, requiring less air, into the cylinder.
Alcohol based fuels have higher octane ratings than gasoline, plus Methanol is often used as both the fuel as well as part of the cooling system in performance engines due to how cold Methanol burns in comparison to gasoline. Higher octane fuels are better suited to boosting an engine, you can increase the compression ratio, and in general higher octane fuels are more efficient for vehicles, especially performance vehicles.
@@Cynsham My best understanding is that oxygen is the limiting factor. And alcohol requires less, so it can burn more fuel. And Nitro is only 1/4 the energy of gasoline, but makes 2x the power.
This engine was nothing special, 410’s run more compression, way more cam, way better heads etc. This is a very basic build compared to an all out race motor!
@@Icutmetal lmao they use magnesium wheels because theyre much lighter then carbon fiber when it comes to weight every 1ib un-sprung is equal to 3 ib of sprung weight and magnesium lights up very easily
@@Gettinbentoffroad Lmao all you want. Magnesium doesn’t just spontaneously combust on its own, and it doesn’t cause “huge explosions. Yes, it burns extremely hot, bright, and can’t be put out with water. Hold a torch to a solid piece, not a big deal; do the same to powder or ribbon form, and you’ve got a show.
That thing sure has a lot of blowby. And why only 6000 rpm? It's a race engine with a good size cam. Turn it up to peak and a little higher to see if it holds on to those peak numbers or falls off.
@@patrickmoore1017 nope condensation. It dissipates too quick to be blow by. Blow by is oil that hangs in the air. That condensation is why you purge an alcohol motor and clear the fuel lines as well. Methanol produces 14 gallons of water per million BTUs of fuel burned. CH3OH is methanols chemical fomula. When combusted with oxygen, 2 molecules of methanol and 3 molecules of oxygen produce 2 molecules of CO2 and 4 molecules of H2O. The added moisture actually comes from the air because it’s burning more air than fuel. This is what blow by looks like. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-4WiAKuojkRM.html
Methanol safer than gasoline? They may have burped that up back then, but there are two things against that. First, the flame burns so clean you can only spot a fuel fire [in broad daylignt] one of two ways: a heat mirage suddenly forming, or something nearby starts smoking for what seems to be no apparent reason. Second, it is not good for humans. There is a case to be made that it is human specific poison - other animals can tolerate certain amounts, but humans are unable to process any amount however small.
@@crackjack8320 Chamber volume is listed as actual, assembled and ready to install. So 64 is 64 unless they have been milled. 5 cc valve relief, approximately 10 cc of head gasket volume, and this also assumes perfect zero deck, my calculations come out to 11.03.
Actually it isn't... IF the goal is 6800-7500 rpm. The cam and compression in that engine are way off, and too small for methanol. They are drowning it.
@@keithbenson6866 I've shaved head and block almost to the gasket thickness ..I do have 13.7 to I pistons .running between 210 and 225 cylinder pressure .they are 64 heads..oh and it's .040.witch don't mean shit but it's actually 385..I got a channel .old ridge runner race truck....few short clips.needa get some part pics and stuff on there
@@keithbenson6866 yea keith I'm not flat top my slugs are appx .300 above deck .and I still have .460 valve to piston clearance.( Which did surprise me because the 12.5 to 1s I had in it actually had less but my cam was degreed 2°adv with 64 cc chambers..they are world products dart 2 heads
Typical 383 with flat tops and reliefs at 0 deck and 64cc chambers is 10.85-1. Perfect for pump fuel. Ironically, the cam they have is also great for that compression and pump fuel. Using the 4.100" x .015" gasket is 11.75-1. Nowhere near 12.5-1. Regardless, none of those compression ratios are enough for straight Methanol to make any real power.
Real nice engine but Im surprised guys are still building 383 SBC where as SBC can easily go 427 and 454 and even 461 safely with a lot of nitrous. To me 383 SBC just seems like a thing of the past especially with the LS stuff making much more power.
@@RustyCarnahan They're still decent, AFR heads can help get a older 327 or 350 over 400 horse which is respectable, but with today's new cars making 500+ horsepower the old SBC is basically are outdated. The modern Dart SBC blocks easily allow 4.000 stoke and I think up to 4.250. What people really need today is big Torque between 2000-4000 RPM. I wouldnt even consider a SBC less than 427. Even tho people can build a street, pump gas 383 producing 550 horse why not build a 454 SBC for around the same price and get the Torque increase.
He forgot to mention you have to change your oil and filter after every race . Methanol turns you oil to yoghurt and rusts everything in the motor when left standing a few days. Not to mention powder formation in the carbs , clogging of fuel pumps. No thanks. Not for me.
Yup, methanol will draw in moisture from the air if it's exposed. If you store methanol for racing, it's best to buy a test kit and check water percentage before running it in your expensive carb and race engine. Ethanol that's made from corn is similar to methanol and it will also pull moisture. It's a shame a guy can't hardly buy pure gasoline at the pump any longer, it stored alot longer and gave better fuel mileage. Pump gas nowadays goes to shit in 3 to 6 months. Here in the Midwest a guy needs to buy a treatment with enzymes that remove water from fuel in stored vehicles and lawn equipment or drain the fuel system and add pure gasoline during winter months.
I laugh at you with your alcohol I have the exact same engine pretty much except it's a 388 and I'm running old school fast burn heads and I run 93 pretty well below 100° outside
Ok so It's half the price of gas, but It burns twice as much...🙄 and you have to refigure all your jetting, absorbs water and It's corrosive AF... Come on!! If you want to make more power, than just build a 572 or a 632 on gas...
What a turd! A decent 360ci sprint engine is 200 h.p better. With smaller heads. 383 ci should make near 900 h.p. on alcohol. It would be an average performance street engine at that power level on gas with 11 to 1.
