Blown 383 Stroker Has Trouble on the Dyno, What Happened? - Engine Power S7, E4

we had big plans for our small-block Chevy but then this happened what was that that's sucked the hell this happen this little small-block Chevy has received plenty of face time here on engine power it's been wrenched on four tech tips as well as multistage builds where it made more and more power every time we bolted it to the dyno now it's been claimed by a couple of johnny-come-lately that we get to work with every day here in the powernation shops now they had something specific in mind we listened and sat down and ordered the parts to take this 383 small-block to the next level and now you get to hear the reasons behind it and what vehicle it's going in I'm here with Jeremy and Jimmy from carcass and they're gonna tell us about the project that this engine is gonna go in how did it all come about well it started life as an 84 one-ton Chevy ex-military truck which was extremely slow so we need to add a bunch of horsepower this is an engine you've actually laid eyes on before this is 383 rear a of 2.0 which ran really well naturally aspirated but what's in it now what kind of engine it's a non turbo 6.2 liter diesel very tired only makes 130 horsepower and we got to step that up that's kind of a dog for sure well this is a old-school blower these are one of my favorite things to build just for not for you only because they run well but visually they look awesome yeah and all we're looking for is something that's gonna stick out of the hood and really catch people's attention and that's definitely gonna do it I haven't ordered a big front face and scoop from end early so that's gonna stick out there pretty good yeah and that's the look we're going for for sure we want like a life-size Hot Wheels car cool well you know we've been doing this lately when this thing gets all done you got to come down and run the dyno you've already ran the dyno before but we're gonna get you behind the controls and throw the lever on this thing I like it what are you guys thinking for power on this thing this is completely not our ballpark this is all your ballpark so you know we're thinking seven ish seven hundred pounds about we have to be careful because it is a stock block it's got a stock man cap that has studs in it but you know it's a stock block so we can with our pulley situation we can switch them we so we can either over drive or under dry the blower so we have some options so okay as long as it starts with a six how's that well that's that's easy so we just we can we can run it till it flushes parts out of it so but we're not gonna do that it's gonna be a fun project we can't wait to see this thing run yeah we can't wait to come down and push on the lever a little bit we'll see in a couple days that's good it'll be ready for you with a good plan we can start the transformation on this small block now a lot of parts have to come off for all the new stuff to go on and I'm not gonna stand around and bore you with removing a distributor I'm sure you'd much rather want to check this out the last time we had this bullet on the dyno it had a single plain manifold and a 4150 carburetor we made the poles from 4500 to 6800 rpm and it laid down a stout 561 horsepower at 6700 rpm and 491 pound-feet of torque at 5100 rpm this is why ins 671 positive displacement supercharger kit for a small-block Chevy the case has been extensively redesigned but it still retains that nostalgic look which makes it perfect for anything from a cackle fest dragster to a high-end street build inside the case ry ins exclusive to lobe rotors that will provide maximum boost at lower rpms the case is CNC machined and it's gear sets are matched for precise rotor alignment the kit is complete with an upper and lower pulley belt belt tensioner v belt pulleys and all of the hardware to cinch it down the supplied pulleys will allow this blower to achieve around 10 to 12 psi on a small block or five to seven psi if we're on a big block but keep in mind you are only a pulley change away from taking a pump gas engine to a hardcore race bullet with the fasteners out of the intake we can remove it but there seems to be a good problem to have it was sealed up using Permatex right stuff silicon and let's just say it's tighter than a first gear hairpin cleaning the silicone off the china rails wasn't easy either it goes to show the strength and sealing qualities of the right stuff silicone to get the cam out the water pump balancer and plate off the two-piece timing cover and timing chain are removed the valvetrain comes off next make sure to keep everything in order so it goes back on in the same place it was pulled from the cam coming out was purposed for an na use it has a standard firing order and made good power the new cam is also a custom grind it's from Comp Cams and has some cool specs it has a 900,000 space circle like the cam that was removed lobe separation is a hundred and sixteen degrees we chose to have four degrees of advanced ground in because it is a blower application and we want as much torque in the lower rpm range as possible the core was a purpose-built 4:7 firing order swap application duration at 50 thousandths is 250 on the intake and 260 degrees on the exhaust lift at the valve with a 1:6 rocker arm is 704 thousands on both the intake and the exhaust now the timing set goes back on and the cam is degreed it's a process that requires several specialty tools they can be picked up at Summit Racing in a kit and it's a great addition to any tool collection the intake centerline came in at 112 degrees 4 degrees advanced just like we planned this shows the accuracy of comps custom grinding we wanted the supercharger to match the engine block so we painted it with dupli-color x' grabber green engine enamel up next our 383 s crowning achievement plus we visit Trick Flow to check out their new small-block Mopar cylinder head powernation is brought to you by rockauto.com first hand that high compression and forced induction engines are especially hard on head gaskets SCE gaskets offer two solutions Vulcan cut ring head gaskets feature pliable perforated metal core composite bodies to eliminate coolant and oil leaks stainless steel rings grip and bite the cylinder head for a tight fit to keep combustion pressure in the cylinders no sealants or machining required Vulcan cut ring head gaskets are rated to 16 to 1 static compression ratio 35 pounds of boost and up to 250 horsepower shot of nitrous oxide ml SGS head gaskets are multi-layer steel gaskets with a portion of the center plate folded on top of itself essentially doubling its thickness this evenly distributes the clamp load to the cylinder head keeping pressure inside the combustion chamber welcome back as we finish the build of our supercharged 383 complementing the camshaft our comp sportsman mechanical roller lifters these are designed for professional racing and high-end street use they have an 800 40 mm outside diameter and are available with needle bearings or bronze bushings we chose the bushing design they have two pressurized EDM oil feeds and a shallower oil band for increased strength a skirted wheel strengthens the lifters ears and a stake axle eliminates clips and provides excellent axle retention the push rods are dropped in and the rocker arms go back in the engine and there are original locations we install them in the firing order and set the adjuster to zero lash the rocker girls can go on and they are snugged up they do affect the lash setting so make sure they are in place if you have them the lash is being set cold at 14000 on the intake and 16,000 on the exhaust an iron block and aluminum head will increase the lash around 6000 when it gets up to temperature that reaches 20 thousands on the intake and 22,000 on the exhaust which is the recommend hot lash from the camp supplier Pat's laying down some Permatex right stuff silicone on the engine so this lower manifold seals as well as the last one now this is for small-block Chevy's and will accept either a 671 or an 871 blower now just keep in mind this will not work on Vortech or fast burn cylinder heads now comes the statement maker with a totally different look is it a booger or a blower we know the Green will be liked by some and hated by others if you don't like it good cuz it won't be going in your pavement pounder anyway this is exactly what's like when you put the crankshaft in a cruise ship perfect alright I got to stand back and look at it how do I look man I think we nailed it on the color combination when you're stand up front it's got this really cool little half arc of black and then everything else is green I love it too I there's there's no sense in not trying to make something good-looking right there's we could've left it natural but that's just best is boring the blower studs our aluminum and for good reason if the engine has an unwanted backfire the studs will shear allowing the blower to be slightly lifted off the manifold letting the pressure release this will potentially eliminate the chance of damage to the blowers rotors or case it's extra insurance in addition to the burst plate the carburetor mounting plate goes on next it is set up for 240 150 based carburetors two pulleys are included in the ym kit they can be used to over drive or under drive the blower we will use the pulley locations that produce the most boost which is 10 to 12 pounds at 11 percent overdrive [Music] up next engineering and building the new mph our cylinder head [Music] Trick Flow specialties sums up their mission with the slogan ultimate bolt on performance for over 30 years they've engineered and manufactured cylinder heads intake manifolds and engine accessories with a focus on high performance at an affordable price the first step is engineering using advanced solid modeling software cylinder heads receive modifications such as new ports valve angles and relocated combustion chambers and spark plugs the runners and combustion chambers are designed first since they are the most critical area for air flow the rest of the cylinder head is designed based on this port configuration throughout the process the cylinder heads are scanned with a laser creating a precision 3d model using thousands of data points digital scanning allows engineers to measure ahead in five to six hours instead of 30 or more simply put the time saved lowers development cost and gives the engineers more time to focus on their primary goal making better engine parts one of trick Flo's latest designs is the power port 190 cylinder head for small-block Mopar an exclusive feature of this head is the modified push rod location which allows the head to fit both LA and Magnum engines with flat tappet or hydraulic roller cams in addition accessory holes have been drilled into the head for both the LA and Magnum engine types trick flow manager Mike downs showed us how the power port cylinder head goes from a cast piece of aluminum to a finished head what we have here is the aluminum casting this is the first part of our manufacturing process this is how we get the casting in from the foundry then what you have here is after the first machining operation what we're doing is is taking off about 7 pounds of balloon getting it to a point where it's actually ready to be ported and then be made into a final piece now that's quite a bit of weight you know a lot of people are interested in where the castings are coming from for the quality and material where you're casting all of our castings are domestically sourced we do not go outside of the United States for any of our casting so yeah we try to keep it all made in the USA a raw casting is placed into the Makino four axis CNC machine large amounts of material are precisely removed from the ends of the head to start the process the machining fluid keeps the part cool and lubricates the cutter keeping metal shavings from building up on the cutting head smaller bits cut the trick flow logo into the head as well as drill and tap the accessory holes alright at this point it's starting to look like a more like a cylinder head I see you got a few more things done tell us what we do at this point so what we did after it was machined on the Makino's we take it and we add seats and guides then it's now ready to be ported because as you see right now the combustion chamber is not finished and the intake and exhaust runners are not finished yet these particular has they have one size chamber of multiple sizes or one size chamber one size intake and exhaust runner ok very good a 5 axis CNC mill does the job the cutting head moves and pivots while the cylinder head rotates shaping the port to exact specifications Trick Flow offers four levels of performance depending on your horsepower and budget needs they range from a standard called fastest cast to fully CNC machine runners and chambers with a high-resolution surface for maximum air flow the power port 190 is Street ported the third performance level with fully cnc'd runners and chambers along with a standard resolution finish now we're at one of my favorite parts of the operation the valve job yes so this is the final step in the machining process of the cylinder head this is where the final cuts are done on the valve seats the head will get washed and it's ready for its final assembly well I find this very interesting is that this is still done by hand right we're able to control both depth and chatter or the surface finish on the seat this way trick flow uses their own custom multi angle cutters to optimize air flow for their port designs by making the seats concentric it ensures a proper valve seal which is essential to make horsepower final assembly is done by hand an experienced technician installs the valves and checks the spring height then installs the springs retainers and locks while he's working Kurtis examines the head for any flaws despite all the benefits of industrial technology there's still no replacement for a seasoned professional giving the cylinder had one last quality assurance check trick Flo has designed a matching intake manifold for small-block Mopar s and we got to take a peek at a cool bit of hardware the original mold used to create the intake so what we have here is something that most people don't get to see this is actually our small-block Mopar intake manifold we've showed the head we've showed all the process of that this is actually the manifold that goes with that cylinder head and then what we have here is the foundry tooling that is used to make that aluminum casting and then over here are pieces of the core that as you can see kind of builds like a jigsaw puzzle so you have your poking areas are where those would be that's right so everywhere in here that you see air is full of sand when the aluminum is poured and then they run it through a vibratory process and break up all the sand and you're left with a good casting now this is one of one yes this is our only pool so you guard it pretty close yes we do the quality of the casting I mean this looks like just a slight amount of machining and it's ready to go that's right and we're very fortunate we work with boundaries that produce high quality parts that meet our strict visual standards and our strict quality standards very cool these Mopar guys are the Mekong's I hope so the PowerPort 190 cylinder head promises high performance and it delivers on their in-house dyno the 360 cubic inch motor power plant made 499 horsepower at 6,200 rpm and 457 pound-feet of torque at 4900 rpm that's what people are looking for they want to look at your flow numbers and they want to look at your power performance that's what they're paying for so really this is a culmination of all of the design all of the engineering all of the are deed all of the manufacturing we bring it all together here to show our customer that we are delivering ultimate bolt on performance up next what started as a dyno session ended as an autopsy [Music] powernation is brought to you by rockauto.com but today this happened what was that that sucked that was happen we got an oil slick I didn't hear anything audible oh no but it's shot a bunch of oil at the front of the engine pull a run back up look at that right there right there that's it that is supposed to have vacuum is because it's got an evac Center whoo that's bad bad bad air fuel was okay we heard something pull up number three you know that there it is right there has pressure in a crankcase that's no bueno port within 400 rpm we went up to 2.2 oh I know I think we heard it let's check it out I think we heard it it started like any other day finishing up the last details of the engine but then well you know the rest when things go wrong in the dining room there are a couple of things that happen first some vulgar language second some tool throwing in third when you look through the window you see dollar bills going up in flames now either way the engine will have to be repaired and that's exactly what we're gonna do an engine autopsy if you will and it's not actually surprising that this engine finally gave up the ghost this has been abuse severely this is our R&D engine 300-plus dyno runs of camshaft testing intake manifold testing nitrous testing and now a supercharger so we're gonna get it apart and see what happened whoa I was gonna come down here to see what kind of numbers the old mule was putting down but this is not looking good it ran good until it didn't now we seem to have had a slight problem and we're as we're tearing it apart we see that number five has a bunch of aluminum on it the plug is a little bit on the deform side yeah all that silver on it wow that is aluminium the interesting thing is none of the other plugs look bad at all and at an air-fuel ratio of 12 to 212 four it wasn't too lean so we're scientifically and very very conscientiously tearing it apart to see what's going on well this isn't the first power adder you guys had on this thing no not at all this thing's been abused it's the original engine out of the little no but we built yeah the 62 it's gone through Mike and Pat burnout contest it's gone through that it's gone through different tests with manifolds camshaft cylinder heads and then the last time we ran it before this was with nitrous and it made 720 horse so we were we were flogging a little bit for stock blocked you know small-block Chevy and we might have heard it then what happens is on high cycle time power added lots of heat what happens at the top of the piston gets annealed and what that happened is it gets soft and I'm not saying that's what happened is we don't you have a cylinder heads off but it looks like it either torched the ring LAN or torched a hole in the center of a piston so well it should I'm sure run fantastic when you guys are done with it and we've got some time so you know whenever you guys get it done you let me know we'll come back down because I want to hear it run and I want to see it run because that blower pulley and belt is absolutely awesome to watch it was a chance to actually put some new parts in it you know you try to be a hero and end up with zero sometimes so that's what kind of happened here so we'll do we'll pull the head off I'll come and grab you so you can see the damage yeah for sure and we're gonna need a lot of help scrape and gaskets and stuff like that so if you're available yeah I got a thing so you guys you don't even have a watch on no that's fine just let me know when you're done with absolutely no help from Jeremy we started to tear down the engine and it didn't take long to find the problem there it is we cooked her that is exactly what I thought happened look at all the condition of all the other pistons look at the burn everything's good on everything looks good if you miss the tune-up it will Roach ever eat all of them yeah and for what it did who knows what happened there okay so parts let's go ahead and get rod and main bearings we need to set up pistons we need gaskets yep we need blower gasket and then that's really about it there's another machine work we're in there to find out more about anything seen on today's show visit powernation tv.com [Music] you

Channel: POWERNATION

Views: 1,655,320

Keywords: Car, PowerNation, howto, how-to, diy, automotive, cars, trucks, automobile, do it yourself, automobiles, auto, Blown 383 Stroker, engine, engine build, horsepower, engine power, dynofail, dyno fail, 383, stroker, blower, powernation, dyno, dyno fails, engine building, engine building tips

Id: MXN0KQGTb_M

Length: 21min 38sec (1298 seconds)

Published: Sat Mar 28 2020