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How to port and polish a turbo exhaust housing

I'll fill this in later. The "book" I typed in this field before didn't save. Come back later if you want to read more about the theories behind porting and polishing.


 


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Cylinder Head 204 - Porting & Polishing
This is a first-generation 1992 1.6L Hyundai Elantra small-combustion-chamber head. Thats what it is. It's a J1 Elantra cylinder head. Good luck finding another one like it. (read more)... In Cylinder Head 106 I talked about the mainstream porting theories as they are discussed. We looked at a cylinder head that I have thousands of dollars of professional work performed on, and a bone-stock second-generation head that I didn't port. In this video I just might do something you haven't seen done before. For some, that may be uncomfortable. The port and polish job I perform here is what I think will work best for my current build. This is not an extreme killer port job. What will be different here is where port textures are concerned, I will be following the advice of a reputable source that will remain un-named. You're free to port yours differently than I do in this video, and I give you that out, around the 20 minute marker. The Hyundai is far from being an ultimate-performance build. It's a $400 box of scraps with nothing but time invested. It's perfect for this video. My finished product WILL be an improvement over what I had. I don't yet have access to a flow bench. I still have an achievement to un-lock. As far as you should be concerned with the techniques I employ... without flow numbers there is no evidence of what this will do, but we will gather lots of info from dynp sessions and drag strip time slips. If I could test it on a flow bench, I would. There are MANY, and when I say many, I mean thousands of flame war mongering pirates floating around on rough seas with a hair trigger cannon finger itching to fire if you port a head any differently than what the herd mentality says to do while porting a cylinder head. I cover the herd mentality because it has merit. It's been tested. Tried and true. But I don't follow it to the letter of the law. I'm definitely not here to de-bunk it. I would port a cylinder head differently for each build based on how that engine was used. There's an extremely valid reason why relating to air speed. It's not the texture of a port that maximizes the effect of fuel atomization, but the velocity of the air running through an x or y sized valve. The driving factor in this is the piston speed. I'm not going to give you the technical information, but will refer you to information about the Lovell factor. There's a better description of this in the links below, and even a calculator to help you find your engine's sweet spot. Why the Lovell factor is important: https://www.highpowermedia.com/blog/3346/the-effect-of-valve-size Lovell gas factor calculator: http://www.rbracing-rsr.com/lovellgascalc.html Only people who have flow testing equipment know for sure what really works and have the capability to produce a perfectly-matched port job for the ultimate performance build. Those guys know the definition of ultimate, and THEY are floating below the water Aegis-class submarines ready to blow your comment up if you don't know what you're talking about. They don't care if you're an armchair mechanic or a herd of pirates. I will say, they're zoomed in pretty close on me right now, and I'm expecting to take a few hits. My work will be tested based on Dyno and drag strip performance, and the results will be posted here. Fortunately, those kinds of videos are a WHOLE LOT EASIER TO MAKE!!!





Porting an eBay 20g turbocharger
The price of this turbo will make it a popular purchase, so I figured I'd air out some tech about ways to improve it. This thing is not for everybody. I wouldn't feel comfortable bolting it on my car the way it comes out of the box. I could complain about its flaws except that so far absolutely none of them have been a deal-breaker for me. To me it's like an empty canvas. I promise to eat those words if it happens, and share my poop. Usually I can easily correct these flaws myself and so can you. BUT! If this thing turns out to perform well with what I do to it... It could easily be a cheap, quick ticket to an 11-second car. Something you could do with a free running 1g, a hacksaw, and about $500 worth of fuel upgrades. Yeah, that would be ridiculous, and I'm bolting it onto a well-modified car... But that being possible speaks volumes for what a DSM can really do. This is no big deal to me. I'd rather guinea pig my car for you in HD so you guys can decide whether or not you'd spend your money on this. Really it's an experiment because this isn't my daily-driver, and it contributes to building a better Colt. Tools I used involve: Scratch awl Milwaukee model ???? 1/4" straight-shaft electric DIY grinder Cone and ball-shaped double-cut burs 180 grit high-speed flap wheel Dremel with a flex-shaft and a tiny 320-grit flap wheel a zip tie 10mm combination wrench tiny flat-blade screwdriver (00) for the e-clip on the wastegate compressed air





Making the intake Manifold
Just a quick slideshow Video showing how I fabricated the intake plenum for my project....





CRANKWALKED? 7-bolt teardown 1080HD
Now this is a story all about how My bearings got flipped-turned upside down And I'd like to take a minute just sit right there And tell you how I used to mix and burn my gas and my air. In RVA suburbs born and raised On the dragstrip is where I spent most of my days Chillin out, maxin, relaxing all cool, 'n all shooting some BS outside with my tools When a couple of guys who were up to no good Started running races in my neighborhood I heard one little knock and my rods got scared And said "You put it in the garage until you figure out where..." I Begged and pleaded that it not be that way, But it didn't want to start and run another day. I kissed it goodbye, because the motor punched its ticket I got out my camera, said "I might as well kick it." Crankwalk yo this is bad Drinking metal shavings from an oil pan. Is this what the rumor of crankwalk is like? Hmm this won't be alright But wait I heard knocking, grinding and all that Is this the type of failure that should happen to this cool cat? I don't think so, I'll see when I get there I hope they're prepared for this video I share. Well I pulled all the bolts and when I came out There were chunks in my fluids in the pan and they drained out I aint all depressed cause I seen this before. I got my books and my wrench and we'll do it once more. I sprang into action like lightning disassembled I whistled while I worked and my hands never trembled If anything you could say that this bling is rare, and when I saw what broke I stained my underwear. I turned off the air compressor 'bout 7 or 8 And I yelled to crankcase "Yo holmes, smell ya later" I looked at my internals they were finally there To sit on my workbench and stink up the air. Audio track by RojoDelChocolate. Here's the 48,000 mile-old 7-bolt I blew up summer 2011 after over 150 drag passes, a half dozen Dyno sessions, 4 transmissions, 3 clutches and 10 years of hard all-weather use.





Hyundai Elantra 4g63 Shortblock Assembly
HOLD ON TIGHT! HERE WE GO! We begin the blueprint and assembly on my 1992 Hyundai Elantra's bastardized 4g63. The parts used in this are from a mash of different brands and models outside of the typical 2.0L 4g63, but the specs and standards I am following for its assembly are for the 2.0L DOHC. If you want to follow along in your service manual to verify what I've done here in this video, the processes we cover here detail pages 11C-95 through 11C-105 of the 1g Overhaul manual. I would prefer you not rip them from the binding and throw them away, relying only on this video for instruction... but rather use this video as a motivational guide, and as a demonstration of the techniques involved in those sections. You gotta do the cooking by the book. I never had any intention of making instructional videos on this particular car, but after it blew up I slowly realized it's actually a better case study for how a 4g63 ticks than anything else in my driveway. There are several reasons for this. One being that it's a mix of parts that shouldn't be bolted together, and the other is that many of you watching my videos aren't trying to build a 600hp engine out of aftermarket parts. You're trying to put back together what used to be your daily driver. This car covers those bases. Don't think for a second I won't go through this same trouble and level of detail for the GSX. I will. When I do, having this information in this video will give you a better understanding on how and why I do things the way I do when I get there. This was the shortest I could condense this video. I've never uploaded a video this long, and I hope I never have to do it again. It took a month to create on cutting-edge equipment, 16 hours to export, and 9 hours for YouTube to process. My script for the voiceover is 6 times longer than the whole script for the movie Pootie Tang. 6 times. Longer. Than a Hollywood movie.





2g GSX How-To: Attempting turbo swap with WTF ending
Okay. Now I've seen it all. There's an old adage that states "if you want something done right, you have to do it yourself". Well, this video both confirms and debunks that theory. A lot of that depends on each person's definition of "done right". You can't do things by-the-book with aftermarket hardware. Sheldon bought this car with a pretty full mod list and it ran great at the time, but by the time we got it to the track, we couldn't beat a 16-second pass. Despite the laundry list of troubleshooting we both attempted to do through tuning and testing, we couldn't determine why it was around 4 seconds slower than it should be running. I started having doubts that a "ported T-28" was what was on the car, and there's no easy way to tell them apart without removing it so we opted to install a 14b... since plenty of people easily run 13's with them. Stick around for the plot twist.





Porting an aluminum intake manifold, basics of porting and polishing.mpg
Porting and Polishing Basics. Porting on an aluminum intake. A few principles and techniques for porting. The therory and approach discussed can be applied to porting most intakes and porting and polishing in general. Abrasives, carbide burrs, surface finish, porting tools and tips. Equipment from CC Specialty Tools (ccspecialtytool.com)





Volvo Diesel Engine head porting : grinder time !
gasket port matching the head for better flow music : Ronald Jenkeens "fifteen fifty"





Calculate Your Compression Ratio
This is everything you need to do to calculate your compression ratio. No foolin'. Every equation and process demonstrated. Find all your variables. Know your exact compression ratio in every cylinder. This is how you do it. Just because your service manual says your car is 7.8:1 or 8.5:1 compression doesn't mean that it is. Whenever there are casting irregularities, variations in piston height, parts that have been machined, non-OE parts, or changes to your head gasket selection, your compression ratio WILL change. It's highly probable that you're only CLOSE to spec if you've never touched your engine at all since it was "born", and that it doesn't MATCH spec. Even if it did, how would you know? This. 5 variables. V1 Swept Volume V2 Deck Volume V3 Piston-to-deck clearance V4 Piston dish cc's V5 Head combustion chamber cc's The ratio math: V1+V2+V3+V4+V5 = volume of combustion chamber at BDC V2+V3+V4+V5 = volume of combustion chamber at TDC The ratio is... (V1+V2+V3+V4+V5) ÷ (V2+V3+V4+V5) : (V2+V3+V4+V5) ÷ (V2+V3+V4+V5) or BDC ÷ TDC : TDC ÷ TDC First you fill in the variables, then you calculate volumes, then you add the volumes, then you reduce the ratio (fraction). It's that easy. Here are your magic numbers: 0.7854 = Pi quartered to the ten thousandth 16.387 = number of cc's in a cubic inch. If you divide any number in cc's by 16.387 it gives you inches. If you multiply any number in cubic inches by 16.387 it gives you cc's. Quartering pi lets you use the calculation: BORE x BORE x STROKE x .7854 = volume of a cylinder instead of... π x (BORE ÷ 2) x (BORE ÷ 2) x STROKE = volume of a cylinder Either way is right. You get the same result if you calculate pi to the ten thousandth. While I apologize for all the math, no I don't. I'm really not sorry. You actually clicked here for it whether you realize it or not. This is ALL the math, the tests, and the whole process to calculate your cylinder volumes and compression individually even if you don't know any of your variables yet. All of my numbers are present for those who want to calculate out the last 3 cylinders out of curiosity just to see how it affects cylinder volumes and compression ratios from one cylinder to the next. Why would I do that for you? Why would I deprive you of that practice? Just assume that all 4 of my combustion chambers are 41.75 ml if you do this. Clicking like share and subscribe helps a channel grow. It also motivates me. Don't sweat the camera. It's enough to know that so many of you care about what I'm doing here. From the bottom of my atmospheric dump, I thank you all! This gift horse's teeth are all over the place, but he sometimes poops gold nuggets. PS: Use ATF for your piston dish volume tests, not alcohol. Of course it's better just to use the spec sheet included with your pistons... but not everyone gets that luxury. Water is just fine for head combustion chamber tests. Dry and re-oil all parts that water touches.





How to Rebuild a Turbo - Part 1 of 2
Rebuilding a td05h 16g turbo. This process can be applied to many journal bearing turbochargers. :) It definitely comes in handy to know how to do this when you are in this type of hobby. 4/25/12: Small explanation on the balancing of the rotating assembly since I get so many comments regarding it. This particular turbocharger, td05h, has its rotating assembly components balanced separately. This means each individual part (compressor wheel, turbine wheel/shaft) gets balanced separately. This allows for easy interchangeability of parts in case they need replacing. This is why I am able to install a td05 20g wheel on this turbo without having to balance the entire rotating assembly. THIS IS NOT THE CASE FOR ALL turboS OUT THERE. You need to research whether your specific turbo (if it's not td05h) was balanced as an assembly or "component balanced" like I explained above. I hope this information helps. Good luck in your projects. Stay Boostin' keywords: turbocharger dsm eclipse talon awd gsx tsi fwd gst mitsubishi evo evolution lancer 14b 20g td06 td06h td05 install installation upgrade race vs Boost supra wrx sti toyota subaru Dyno laser rs rst 13g hx35 hx40 holset 18g 25g sbr t25 stock replace rebuilding big large nissan 240sx t28





Boost Leak Testing 101: Building the tool.
If your intake isn't sealed up and completely air-tight, then your turbo is working harder to produce fewer results. This is a tool used to verify the integrity of the intake, and to find trouble spots that need attention. When your turbo is busting its fins to compress air, why not make all that air go where it belongs... with more fuel... to make more boom. This version of the tester with clamp-style tire valve stems in the cap is ideal because after you have the intake charge (from an unregulated source), the schrader valve allows you to disconnect the air hose you're charging it (silencing the hiss of it) so you can hear where small pesky leaks might be hiding. Testers without the clamp valve are a waste of time. The parts list is available here: http://www.honda-acura.net/forums/do-it-yourself/148666-diy-for-the-turbo-guys-bosst-leak-testing.html#post4766657 Boost leaks can cause idle problems, misfires, backfiires, squeaks, quacks, honks, or even seem like nothing at all is wrong except your time slip is a second off at the track. Everywhere one part of anything bolts to another on the intake, it's an opportunity for Boost leaks. I've blown Intercoolers apart. Not the couplers, the end tanks. Ever wondered what PSI the wastegate actuator's really opening at from standing over it in the engine bay? Build this tool. Until you've verified this on your equipment, you have no idea.... Every car I've ever tested has Boost-leaked out the Yen-Yang.





Performance Chips - Mythbusted
Can you really get an increase of 35 horsepower using a $20 'Performance Chip' from eBay on your car? And how do they work? In this episode of Mighty Car Mods, Marty and Moog find out, with some surprising results... https://www.facebook.com/mightycarmods Stickers, music, magazines and MCM gear: http://www.mightycarmods.com/collections/ Discuss this episode here: http://forums.mightycarmods.com/forum/general-mighty-car-mods-discussion/ge neral-discussion/956779-performance-chips-mythbusted-episode-discussion Also something to note around Mighty Car Mods: we are normal guys and are not trained mechanics. We like to make interesting car mods and show you how we've gone about it, but we can't promise that anything we show you will work for your particular car, or that you won't harm yourself, someone else, your car or your warranty doing it. Please be safe, be responsible and unless you know what you're doing, do not fool around with very serious machinery just because you've seen us make it look so easy. Talk to a qualified mechanic if you are in any doubt.





Boost Leak Testing 202: Hair Spray 1080HD
Why do I know about this? I'm tired of being the one knowing all the weird crap. If everyone knows it, it won't be weird anymore. It will be commonplace. By the time I'm done sealing up all of my own Boost leaks, all of you will also be experts as well. I'm sure most of you would teach me something, too... but you subscribed, so here it comes... something I learned in my travels... Also, thanks Ilya M. I've only heard about it twice in my life. It worked great for the one time I've ever needed it, and I'm a huge fan.





"How To" polish aluminum by hand (part 1)
Umm... in this video I show you uhhh... how to uhh... hand polish aluminum lol. This is part 1 of 2. The entire process took roughly 4 and a half hours and I watched movies for most of them. Forgive the speech impediment lol.





"How To" Port polish an intake manifold
In this video I show you how to port polish an intake manifold. Remember to wear your safety gear and take your time. The intake itself took roughly 2 hours to polish. Removal of the head is recommended before any grinding or polishing to ensure none of the filings make it into the cylinder bore and cause damage to the cylinder walls.





Which car is faster? Which Car is Faster?




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