See Thru Engine on Turbo Nitro and Dyno  (How much HP does it make?)
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See Thru Engine on Turbo Nitro and Dyno (How much HP does it make?)

August 21, 2019


Welcome back to Warped perception. This is episode 5 of the see-through engine
series. If you haven’t seen any of the previous episodes. And you want to watch those first. They’re all in the series playlist. In chronological order. If not I’m going to jump right into it. And bring you up to speed. Now in the previous episode I try to blow
this engine up. By running nitromethane. With aggressive timing. And just pure RPM. And to my surprise the only thing that happened. Is that it blew a head gasket. now this is the engine with new head gaskets
installed. A new transparent head. Oh and I changed the oil. that’s how the oil looks from the last episode. Wow that’s strange it’s kind of like jelly. Look at that. I don’t know what that is. But that’s what we have left over from the
nitromethane blow-up attempt. There’s some metal shavings and stuff in there. But nothing really crazy. Now before anything I’m going to start this
engine up. And show you that it’s in perfect running
condition. Before moving on. That sucker has compression look at that. It’s vaporizing. all right as you can see
the engine is in perfect working condition. Even after all that abuse. Now that we know the engine runs. I’m going to up the ante and add nitromethane. Aggressive timing. A turbocharger. And last but not least a dyno. So we can measure the performance of the engine
every step of the way. And see which modification makes the biggest
difference. first thing I have to do build the dynamometer. I decided to go low-tech and build a literal
brake Dyno. out of a basic disc brake kit. Some creativity. And a bit of Machining. I think my Dyno design. Is going to make it really easy for anybody
to understand. What horsepower is. And how it’s measured. This Dyno is also going to allow me to load
the engine. As well as track the horsepower output. Through each modification. To see which one is making the biggest difference. So the brake Dyno is installed. And like I said before. This is a literal brake Dyno. so I am literally
going to be measuring how much brake horsepower this engine is making. And if you’re not familiar with what horsepower
is. Horsepower is work over time. And 1 horsepower equals lifting 33000 lb. A distance of 1 foot. In 1 minute. to calculate the horsepower. We need to know how many foot pounds of torque
it’s producing. Now 1 foot pound of torqueperiod is created
by one pound of force. Acting at a perpendicular distance of 1 foot
from the Pivot Point. The Pivot Point here is our crankshaft. But in this case the distance from the center
point of that shaft. To this pin up here. Is exactly 6 inches. come up with since we have 6 in whatever measurement
we come up with. Will just divide that in half. And that will be how many foot pounds the
brake is generating. and last but not least the way with that we’re going to apply pressure
to the brake rotor. Is with this master cylinder right here. And the way this works is I kind of rig this
up. So we can turn it And lock it into each position. a place your bets right now is that how much
horsepower does engine can make. Because we’re about to see. I’m going to the control the throttle. While Diana gradually increases the master
cylinder pressure. Increasing the load on the engine. Until we get that sweet spot. and we’re at
the maximum amount of torque that this engine will produce. Oh no the head cracked. That was a pretty good run. Especially considering that we don’t have
a proper spark plug installed in the engine. I calculated about 2.5 horsepower. And about five foot pounds of torque. it looks like the load does make a big difference. Because this right here is the first time
I have ever cracked the head. And there’s even a little tiny pieces of glass
inside the engine cylinder look at that. next thing I’m going to do is remove the transparent
head. And mount the stock head in its place. and this is going to be a great comparison
between the make-do spark plug in the transparent cylinder head. And a proper spark plug and proper compression
with the stock cylinder head. Let’s run it ready to go. Stock head gasoline let’s see how much power
it makes. Okay that was a great run. Now it’s time for us to calculate how much
horsepower the engine made. And unfortunately I forgot to install the
tachometer. I decided to pull the engine back into the
garage. Install the tachometer that I forgot to install
in that previous run. And do one more run on gasoline with an accurate
RPM measurement. To get a good Baseline on what this engine
is making stock on gasoline. Then I’m going to move on to the nitromethane.
this is a tachometer that I’m going to be using for this episode. And I don’t know about you but I like when
I see a product being used in a real situation. Because if I buy it I know what to expect. In this case is going to get used and abused. And if it fails it’s going to be on camera. And if it doesn’t you know it’s good. So if you’re interested in buying this tachometer. I put a link in the description below because
I see a lot of cool uses for this. Including this one. Tachometer is installed and it looks fantastic. Ready to do our first accurate Baseline run
on gasoline. Alright that’s our background. Run number 1 accurate Baseline gasoline. Alright let’s see how much power this makes. alright so apparently. I didn’t account for this screw vibrating
loose inside of the scale. I’m going to put the scale back together and
do one more run. It’s always something. I’m just going to get some red Loctite and
fill up this screw. Put this back together. I definitely picked the right scale. Because this thing went right back together
again. Hopefully our scale doesn’t break this time. Ready baby. so that right there is almost exactly 9 foot
pounds divided by 2. Which is 4.5 foot pounds x 3600 RPM on the money. Which equals 16200 divided by 5252. which
equals 3.084 horsepower. That’s pretty amazing that this thing after
all this abuse is still making the rated horsepower. Time for the Nitromethane. I just have to change a timing but Nitro in
the tank and ready to go. Okay so that was a fantastic run pretty entertaining. We’re going to calculate the horsepower real
quick. We were at 4000 RPM. we’re going to multiply
that by our foot pounds of torque. Which in this case is 14 divided by 2 equals 7, equals 28000
and we’re going to divide that by 5252 to get our horsepower number. Which is 5.33 horsepower on nitromethane. That was pretty impressive 5.33 horsepower
on nitromethane. With just a little bit more timing. And I opened up the needle for the carburetor
all the way until it was almost falling out. To get as much Nitro in there as possible. So for this next test I’m going to take the
sequential turbo charger. Off of an SL 65 and modify it to fit on this
3 horsepower engine. okay I have the turbo all installed on the
Briggs. I mean it looks like something I haven’t ever
seen before. I’ve always wanted to put a turbo on one of
these small engines. And I just never did. But now it’s done. I put a spring on the wastegate here to keep
it closed. Because I’m hoping to build some boost. I put a viewing window here on the intake. The turbo is being lubricated by this Loop
tube. The only thing I don’t like about the way
that this is set up. Is that I had to use a wet system. Which means I have the carburetor mounted
to the turbocharger. And the turbocharger is pulling in the air-fuel
mixture. Compressing it. And then forcing it into the engine. I don’t like that because that’s kind of how
the first forced induction cars were set up with this wet system. And there’s a lot of problems with this but
I think it’s going to do for this. And now that the turbo is mounted modified
and ready to go. Let’s see what the engine does and how much
horsepower it makes On turbo and nitromethane. Okay so that run was kind of disappointing. We maxed out at about 6 foot pounds of torque
at 3500 RPM. Or actually 3 foot pounds because we need
to divide that in half. So only 3 foot pounds at 3, 500 RPM. no wonder
why they don’t use the wet system any more for turbocharged vehicles. It made last power than the naturally-aspirated
setup. so what I’m going to do is I’m going to try
one more time. Tune it a little bit and give it as much fuel
as possible and see what it does. Hopefully it makes more horsepower else its
going to be really disappointing. Oh there goes I think it made more power. I heard the turbo start spooling up and making
some boost. Did you hear it it went woohoo. so that got me excited I heard the turbo start
spooling up and it was like woohoo making boost. I don’t know where all that oil burning came
from. It could have been from the bearing in the
turbocharger or from the piston rings. maybe the piston rings are getting messed
up. If you listen the engine is making kind of
a little creaking noise. So I don’t know what that is. But with this run it maxed out at about 7
foot pounds of torque at 3650 RPM. And I don’t know if it was that much better
then the naturally-aspirated nitromethane run. But let’s do the math real quick and we’ll
see. So we got 3650 RPM x 7 foot pounds of torque. Divide that by 5252 and that’s our horsepower,
so. the numbers don’t lie unfortunately it only
made 4.86 horsepower With the turbo on nitromethane. So that’s kind of disappointing I’m sure this
thing will make way more power. But I’m going to end this video right here. Because this thing is taking just way too
long. This was a lot of building and everything
else and it didn’t blow up. It didn’t make more horsepower than the nitromethane
alone but. yeah if you want to see another video on these
engine I’ll definitely do one. I’m thinking maybe just fix these problems
because. I’m sure that this thing has to be able to
make about 8 or 10 horsepower with the turbo That’s just my guess. I don’t know how I can get it to work maybe
at a fuel injector. Some type of engine management system maybe. I’m going to look around and see if there’s
a company that makes that. And maybe I’ll bring it up in another episode
it was kind of fun. So let me know what you think thanks for watching. Hopefully you enjoyed that long painful episode
and process I’m trying to get more power out of this engine. But I think I maxed it out I mean. Putting a Turbocharger and nitromethane and
timing on this 3 horsepower engine. it still didn’t blow up and that’s pretty
amazing. So tell me what you think thanks for watching
and see you next time. This is going to be so cool you know how many
people have wanted to see this thing Dynoed on nitromethane a lot.

Only registered users can comment.

  1. Time to try hydrogen from electrolysis. Urine works best. Water will work ok. Try and find resonance and you can split it nicely.

  2. read on some small engine website that someone got ~29HP out of Predator 212cc engine on alcohol and 34.x… ~35hp @ ~ 9000RPMs on nitromethane… with max motor build, billit rod/billet flywheel, flyweight flywheel? , stainless valves, 35# double springs, radically worked head, metal shim head "gasket" .009"? karting.4cycle.com predator… some ppl REALLY GO ALL OUT ON THOSE MOTORS…. one guy set his budget for $1000 in a $100 motor. speed/power costs money…. how fast do u want to go?

  3. I believe that the oil turned into jelly is the Nitro getting pasted the rings into the case and mixing… plus the extra high temp.

  4. Just sayin just because a turbo spools doesn't necessarily mean it's making usable boost. It can "make boost", but it may not be beneficial over an n/a setup

  5. I'd add two dilithium crystals and go for warp drive…a Briggs n' Stratton powered starship. Think big and keep experimenting..!

  6. wud LOVE to see u do a series on PREDATOR (HEMI/non hemi… some think that "the ticket" is the HEMI block and the NON hemi head) with… 22# springs $8. =6500RPM's/ 26# springs =8000 RPM's, head porting, stainless valves, bigger 390cc or Mikuni … Chikuni 22/26mm carb, BILLET ROD  .020 to get 0 deck height, .009" head gasket shim…. whatever it takes to get ~.030" piston to head clearance and valves don't kiss the piston … and cause catastrophic engine damage. header/scooter muffler (E bay), intake adaptor for carb and adaptor for air filter. with E 85? something that isn't too expensive for fuel but wont detonate/pre ignition.   turbo is too much… $$$ for avg person on a kart/mini bike.  try to keep $ spent to ~$200, not including the $100 for the motor… $107 with tax. ….  13.5HP? @ 6500+ on alcohol of some kind.  DEFINATELY DO NOT BE IN THE FLIGHT PATH OF FLYING OBJECTS, not too much of a concern with $$$$$$$120 billet flywheel, HEMI and NON hemi flywheels are DIFFERENT taper on the shaft!!!   don't need advanced key on the BILLET FLYWHEEL, but 8 degree advance on NON billet flywheel is the standard, getting timing to ~ 28~32 BTDC~~. a CONCERN with stock 5.5# cast metal flywheel that the magnet will fly out/off, like a bullit, and take the coil mount with it ruining the motor…and anything else in its path.  "line of fire"… of flying exploding parts… flywheel/magnet….  take out/off magnet on cast flywheel and EPOXY it to the sanded/cleaned flywheel… if can get the little Philips screw out without ruining the head trying to get it out?  if use stock rod, trim 3/8" off the bottom of dipper as crank flexes and dipper hits bottom of motor, breaks end cap and ruins engine.  TORQUE ROD CAP ON ANY MOTOR TO RECOMMENDED TORQUE as they sometimes are NOT torqued for MAX 6000 RPM's.  17 ft/lbs?   same as head bolts, unless running head studs then 23 ft/lbs.  BILLET rod $65 on fleabay or any other karting parts store … might as well get all the parts from one karting store to justify the $13 shipping on $150 worth of parts. put parts in shopping cart, read karting.4cycle.com       PREDATORS and decide what parts u NEED to have.   Chomemoly push rods, different lengths for HEMI and NON hemi Predators. 1.3 stamped steel rockers for NON hemi $20… but they might fold up with 26# springs???? shd be ok with 22# springs??? CM .265" lift cam with 1.3 rockers= .345" lift, max lift that does any good without RADICAL HEAD WORK (welding/machining) and resulting low RPM performance, but at 8000RPMs???? SCATTER Shield of 3/16 steel plate tween motor and operator?  Kevlar safety blanket… is too expensive. too easy to spend … $300 on $100 motor and still leave some HP on the table. but most ppl… $200 piecemeal in a $100 motor? change oil often, especially running exotic fuels/nitro that pollutes the oil quickly?

  7. Your amazing ! You've gotten down to the basics of physics in a demonstrable fashion ! I love your inquistiveness and search for answers ! Keep up the good work !!!

  8. Would you be better with electronic strain gauge type scales maybe some thing like digital luggage scales
    As hardly any movement required so you would have more stable anti torque link just a thought ?
    Anyway love your videos keep them coming
    Also if you want dry system it can be done with carb ,the float chamber needs to be airtight then you feed charge air to top of float chamber
    As charge air builds it should perfectly balance out so carb works just the same .This idea was done on MG metro Turbo using a modified SU carburettor in the early 1980's and worked ok

  9. The needle on the carb is for idle, not flat out. Makes no difference in the pull. And you understand that that turbo cannot be driven by the tiny exhaust from that engine. Nothing to do with wet system. Do you work with mechanics at all???

  10. put up ball shape inside the head on the underside but you know I think it would work good if I had a little more room for explosion combustion if you will

  11. I think it would be very interesting to run it on Hydrogen and do the same experiments. I like your style, Sir !! Try rigging a supercharger on it too to see the difference in performance would be an interesting experiment also.

  12. It makes sense why less power with a turbo. A turbo requires a certain percentage of engine power to function. In a vehicle with a normal size engine, that percentage of power is smaller. But in a small engine, that percentage of engine power becomes far more significant. This percentage negates the overall increase in power. Looks like it uses about 1 Hp. to run.

  13. Have you really got nothing better to do?
    Looks in mirror;
    "Have you really got nothing better to do?"

  14. Love all your videos… been subbed for about a year. In relation to this video… "Too Much turbo – Not enough engine" (insufficient exhaust air flow/volume/velocity & exhaust Heat)… Turbos Need Heat to spool up quicker, and one cylinder is not only insufficient in every way for That particular turbo, but too far away from its needed heat source. Great Video, just the same… love the content. PS: What you're labeling as a "wet system" in regards to the turbo/carb setup, is officially known as a "Draw-Through" system. Keep em coming!

  15. Shoulda used a smaller turbo. Will definitely make more power. Basically its like rob dahm putting a ship turbo in his rx7 is what you did with the turbo from the car

  16. you gotta remove the governor from the engine so you can really open her up and get a way higher rpm so it can try to build some boost

  17. You’re awesome man! Yes people gonna comment that too many user errors and this and that of course won’t work but I see the video as just a dude having fun and not editing out stuff only to make you look perfect. Life isn’t meant to be so serious. Id love to kick it in your workshop, have a couple beers and create crazy random projects lol

  18. This video is in incredible and you seem like an amazing mechanic/engineer. I do however disagree with your use of nitromethane.
    From chemistry lessons, nitromethane carries oxygen locked up in the molecule. So much so, you run about 8 times a much nitromethane through an engine compared to gasoline because the fuel/air mix is so much greater.
    To make proper use of the nitromethane, you need to greatly increase the jet size in the carburator.
    Nitromethane only makes about 1/3 of the power an equal amount of gasoline will, but you can burn 8 times as much through the same engine and volume of air. It's why a nitromethane dragster makes so much more power compared to alcohol or gas powered dragsters.
    A properly tuned carb you should be able to triple your max HP results.
    Even though you opened the needle jet up to allow more fuel flow. I still don't believe you was anywhere near the proper stolchiometric mix for nitromethane.

  19. Use a smaller turbo! That turbo is design for a 4 cylinder to spin it, with a much larger displacement. That engine hasn't the capacity to spool the turbo properly

  20. Wet vs dry boost; probably a very valid idea! As far as US production cars are concerned in the modern era, Studebaker used a carb box on their blown Golden Hawk in 1957, then starting in 1963, they used a special sealed AFB carb on their R2 engine, and reverted to the carb box with the higher boosted R3 and R5 engines. The latter ran over 200 MPH at Bonneville in 1964, all with a 5 liter engine. Pretty impressive for a stock bodied car at the time! They used basically box stock Paxton/McCulloch blowers. The R2 would make about 8 pounds of boost in bone stock condition, although some claimed more…but with all new parts I'm assuming. In a completely different situation, the 2 stroke Detroit Diesels all were supercharged, but later models offered turbos. In my own case, a Turbo 6V92 engine was speced at 350 HP at 1950 RPM. When the boost reached about 12 pounds, you could feel the difference. That was 552 cubic inches.

  21. Try a Paxton supercharger or any other blower setup. I can't wait to see it. Please try it. Superchargers are more efficient and reliable I think.

  22. And so became a story about burning different fuels to blow up a lawnmower engine to a story about what you can pimp your lawnmower with 😀

  23. Old briggs things run forever they're pretty badass it's pretty wild I enjoyed that video I'm a mechanic myself I like doing projects and s***

  24. Them engines run for ever are lawn mower engine is still going after ten years of fitting a corn flake box for a head gasket what i did years ago lol😂😂

  25. I noticed your missing a finger I had my left hand caught in a table saw and lost 3 fingers. How did you lose yours?

  26. Bruh why is he calculating the horsepower of the engine, when at 12:48 you can clearly a sticker in the engine that puts 3HP.

  27. Look at what the oil looks like on a Top Fuel car that runs nitromethane. It looks just like yours. It's the Nitro washing down the cylinder wall mixing with your oil.

  28. When he was a kid, he invented the 2 story gravity hydro bong! And was safe about it, he used pressure gauges and a burst valve

  29. With high rpm comes high crank case pressure, you need some way to evacuate the crankcase. Put vacuum on the crank case.
    when the pressure is equal to or greater than the cylinder pressure the rpm cant increase.

  30. Beside the issue of WAY to big of a turbo, I would be willing to bet that the turbo wasn't spooling because of the single exaust pulse hitting it only 1/4 of the run time. I would bet you could come up with a super charger by modifying the turbo and hooking it to the crank shaft, that would even out the pressure coming from the compressor during the run. The next step would be making a dry system, maybe from one of the mechanical fuel injector from systems from Go Power Sports. I bet it could be rigged up to be a blow through system? Also curious if you put a boost gauge on it to even see if it was building any boost at all?

  31. I noticed that your tach reads the electrical charge running through the spark plug wire.
    I also noticed in previous episodes of this, especially in the slow-motion clips, that your spark plug fires twice per revolution.
    When I heard the engine and read the tach, it looks very much to me to be reading double the actual RPM. Confirm?

  32. 1971, Bonneville, a guy used an air injection smog pump from a 454 Chevy to blow into the carb of a 125 Honda twin…made 8 lbs of boost driven 1:1.

  33. All your experiments , so to speak , are fantastic.
    I would like you to test Mazda 's " Wankel " engine with the clear plate you make.
    The engine would run on original gasoline , firs in medium and then higher rpm, so in real life – mode.
    So it would look like combustion , suction , exhaust , so all that is very controversial with this type of engine.
    I know , i was looking at the little " Wankel " engine .
    Please be kind and do an experiment like this.

  34. 🔵 I would be VERY concerned about tiny bits of glass that got down between the piston and the cylinder, without removing the piston and cleaning everything out you're probably going to end up getting scratched-up piston-rings and cylinder-head.

  35. Bro me ayudas en un problema del mismo motor ya no quiere arrancar la comprensión es de 40 tiene chispa y gasolina que puede ser ayuda!!!!!!!

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