Man, I get devastated for far lesser things. Don't know how you guys can keep your cool like that but glad you found it to be a way more minor issue than you thought. Love those power numbers you're putting up, and this thing is going to be sick!
As soon as I heard that rattle my first thought was FLEX PLATE!!! AAAHHHH!!! 😂 You see this on Duramax engines as well. Albeit very rarely, but once you DO hear it, think the worst, and then realize you didn't blow a crank, you don't forget it 😂
incredible! whew with the crank bolts. i like how that 8082 is working! seems like it spools up fast also, this thing really starting to make some nice noise up top
Consider studs and nuts on the flex plate instead of bolts if this continues to be an issue. I dyno tested piston aircraft engines and the adapter hub we used would sometimes come loose on high HP engines. We switched to studs and nuts and never had that issue again.
I loved the addition of the real time oil pressure, fuel pressure, timing, etc it really helps you understand what the cars doing on the dyno and what different sounds might be correlated to
So glad the engine wasn’t broken! Also I’m sure everyone is here for drag racing, but man you could make a serious road racer out of that. The IRS is choice.
I wonder if a wedge lock washer would work in this situation? Your suggestion would most likely solve the issue though! Some good old red loctite fixes any loose bolt
Definitely a unique sound, I've actually bought two vehicles coming across The Auction Block that sounded like that and I bought them cheap because everybody thought they were going to have to put a motor in them
@doncruzen6246 That is for sure the best time to have the knowledge of these types of things. I got my current car at auction because people thought it was blown up because of all the oil it burned, but some idiot put close to 17 quarts of oil in it. It naturally aspirated, so it had to bad valve cover (weird pcv system design) or something stupid cause it had good compression.
So cool. The straight six leaves plenty of room for that turbo, waste gate and the exhaust without getting the tubes too kinky. This looks to be working out well.
Awesome hp numbers. I never realized that these engines could handle that much. I've seen the 3800s get some good numbers. Looking forward to seeing it on the track.
Crazy what good suspension and an automatic does at the drag strip. We were making around 1000whp and barely got in the 9s with a 9.96 @ 160 . In a 5 speed 4 door e36 328 back in 08. Did still have full interior, heated seats and ac.
Took a trip in the early 90's down the coast to Tampa from the north east and when we got close my buddies van was making rattling noises which we drove with for the last 100 miles or so figuring it was a rod knock and we better get to where we are going if we can make it. The next day I got under there to check it out and the flex plate had broken 4 out of the 5 connections between the 5 holes so basically was held together by about 2 inches of plate. Since we had nowhere to pull and engine in Tampa I shimmed the plate with zero lash and on the way back only had to re-tighten the bolts once in Virginia. Ahh the good ol days. :D
What seems to be so interesting is that the potential and universal acceptance this engine would have received had it been a world platform and been used in the classic way GM used engines like this in the non us market would have been developed and accepted well yet it was not Just imagine if Australia Europe Asia and Africa got them too instead of the asthmatic v6 platform It’s like they don’t want the straight to be used for a more capable tractable platform It’s clearly a capable competitor to any other inline platforms made by other companies the world over
Well, I have been watching the rise and end of many builds on your site and I must say you hit it out of the park with this one. Building it quit fast, catching a certain tranny pull & repair or more with chasing and repairing that clicking noise shows your skills are on the money. This Chev is going to be a ripper but it also would crush most road racers. I have learned much from you which I will use with the 2009 6.2 L9H in my garage but this build is making me very drawn in. Keep the info coming and good luck with all.
I grew up loving V8’s, but have grown a massive appreciation for the I-6, particularly the Atlas. Good to see someone building something this cool but staying humble about it. Keep up the great work!
sounds like its going to make more steam, yes the barras do have this problem, locktie red and good bolts, the manuals we found a small tack weld on each bolt, normally really happens when limiter bashing, thumbs up from down under..
@@spacedoutcowboy5211no. These aren’t f bodies. After 02 there’s hasn’t been one. Not sure gm even goes by body anymore. They go by platform like the newer Camaro and Cadillac are on the alpha platform.
823 wheel horsepower is, more likely than not, over 1000 crank. That is absolutely insane power with any engine, especially one yanked out of what probably was a junkyard chevrolet trailblazer from 2009ish... whos stock crank hp is less than 300, and probably over estimated at that number anyway.
From the videos Richard holdener did a couple years ago, the numbers that it's rated at pretty much line up with what he saw on the Dyno. Honestly, given the boost levels currently, I can see 1000whp in the near future
I had a Trailblazer, I can verify off the line it was slower than my 2004 Corolla. After some research I decided the computer pulled power massively to save the stock transmission and driveshafts from idiots doing burnouts and trying to tow things without any mechanical sympathy. Sad. The best fix was an aluminum trans piston from a Camaro and the cheapest way to tune it was sending the PCM from the west coast to Carolina or something. Which I never did because we needed to drive the thing. So what I'm saying is the engine has the power, but no it definitely doesn't put it down very well stock.
@@milescarter7803 it was not slower then your 04 Corolla lmao. They are much quicker then many vehicles on the road and puts the power down just fine. Something clearly wasn’t right with your trailblazer cause I have almost 174k on mine now and embarrass lots of people and it’s not modified at all besides no catalytic converter.
Today at us131 drag way Martin..mi guy had a 4200 trail blazer engine in a dragster with a front mount distributor and 3 throttle body's went 4.96 in the 1/8 mile sounds wicked oh I forgot it's NA
You want Apple Exect, partners, Globalists/elite, Gov't partners to collect, store, track, search, know precise locations, movement with their vehicles and everything ?! 😲
Time to find a cheap G8 or SS with a blown engine, Holden re-badge and panel the front, transplant one of these 4200's and create the Ultimate Aussie Tribute sports sedan, North American Style. *It's American Commodore Time.*
@@lilairstrike535 I've seen the Commodore badging done to an LS V8 powered SS/G8 Model in the USA....but it was the Inline 6 (Nissan RB30 SOHC from the factory) that was what the Commodore is also well known for. The Skyline RB26 boys get their RB30 blocks from Holden Commodores, then top the RB30 block off with the RB26 Dual Overhead Cam Cylinder Head..
Wow...That last pull with the extra timing really spiced things up, seemed to spool much faster and that nose stood at attention the whole rip...Sounded much happier at that timing level even on decel...Well done guys!
@@joeyjojojr.shabadoo915not quite. Only on one model, the VL from 1986-1988 did Holden use the rb30 and rb30et, and the model after the efi v8 in the 1988 model Commodore made more power. But commodores had inline sixes in the first generation as well as V8s. Then the next two generations had Buick 3800 S2S and v8 Holden motors, then the LS from 1988.
That's remarkable. And touching that 8,000 rpm ceiling as well. It illustrates how efficient the cylinder head is with excellent combustion chambers. If this engine were to power a 24-hour endurance race car, what would be the ideal power level?
I love these videos! I got really curious about the 4200 a few years back, found your channel, and been here ever since. It's crazy all that you've been able to accomplish with this platform over the last few years. And starting with next to no support. Even now the aftermarket for 4200s compared to 2jz or ls platforms has gotta be like 1%. I inch closer and closer to throwing one in my 78 malibu every day.
Seeing this is giving me ideas on a replacement engine for a 69 Buick Riviera. Should the stock block ever decide it doesn't have what it takes anymore to keep the explosive power under raps! I'm all for keeping the stock block I'm half tempted to pull it while it's still exploding on all 8. Then just build a 4200 with 750hp and slap it in and Cruze it! It would be a fun car for date nights or cross country trips. Putting one in your 78 Malibu that would be a fun drag and drive car! Man this is making me want my other project finished already so I can start another. I have 4 and my Datsun is already started would prefer that finished before I start another. Or have the mechanical stuff finished first at least before I start the next project.
O, WOW,,, mate, sesational, i had a flexplate develope a crack under load and it sounded the same, so i went with the plate, but not lose bolts. Mate i am over the moon for you guys, and hoping i can get close to your efforts, ALTHOUGH i am going NO computer... looking forward to the next installment...Eddie Australia.
The quality lately has been really good, you give us so much in each episode. Thank you for the entertainment, great project, great work! Love following your projects
If it's possible, you should use a custom made lock tab plate to keep those bolts from backing out. It wouldn't be hard to draw them up in CAD and have them cut with one of the online services that offer that.
Now, this... this is the BIG F'N TURBO content im here for! Wicked sound and great numbers, can't wait to see what comes next. Also, the engine bay still stuns me each time you pan across it. Super clean and purposeful at the same time... its art.
I got a 04 Chevy trailblazer with the vortex 40 200 and I really really wanted to convert it over to Chevy TrailBlazer SS with the Corvette driveTrain but after watching this I might just want to build the engine to make an Amara Berra
