Is A 200 PSI, 3000 HP 4 Cylinder Even Possible? [

[@KARR]

Excited to hear this one Mark is the SR20 master

[@hpa101]

TIME STAMPS: 0:00 - Mark Mazurowski Introduction 8:46 - USA Street Racing 23:00 - Engine Machining Development 30:00 - SR20 VVL Head Development 34:15 - Formula D Valvetrains 36:30 - SR20 Head Flow 38:45 - SR20 Cams 47:00 - Honda K Series Vs Nissan SR 54:50 - Sleeved Blocks 1:05:20 - Custom Stud Discussion 1:12:40 - SR20 Billet Block 1:19:00 - Billet Block Heat Expansion 1:22:00 - 200 PSI Development 1:28:00 - Development Takes Time 1:30:09 - The Future For Mazworx 1:31:49 - Advice For Others 1:34:20 - Thanks Mark! Links Below 1:35:43 - Leave A Review, Get Free Stuff And MORE Episodes 1:36:16 - Get In Touch Mate! 🧠 Win a T-Shirt or Mug by leaving a written review that can include a technical question for host Andre to answer - hpcdmy.co/reviewpodcast This also really helps us gain more traction for the podcast, ensuring we can keep bringing you more and more episodes on the regular - Taz

[@hpa101]

These are a little rough, but hope they help guys!

[@slfrules1]

It's a crazy small world/country. I've been a Mazworx fanboy since I got my G35 near a decade back. Now I work with David who used to chase y'all after the burnout and back y'all up.

[@anthonyp7941]

Mark has been such a huge help on my sr20ve rwd. Without mazworx i wouldn't be where I'm at today with my setup. Highly Recommended.

[@fraserwright9482]

The metallurgy of how it gets to Mark is interesting and how far they are taking the material.

[@tjtotheb]

Such a great episode, run a ton of their parts and VQ transmission swap on my weekend drift car. Everything always performs flawlessly with great fit and they have awesome customer service. Great episode

[@stevesloan6775]

I’m running a copper head gasket on my old Ford X-flow 1600. I machined 35thou grooves in the head, and installed piano wire, and the machined receiver gloves in the deck of the block. With an annealed copper head gasket, it bites in too the deck. Easily holds 11.5:1… it could hold 14:1 compression no problem.

[@NoctisIgnem]

I always wonder about these things why it's needed. My idi diesel runs 1:23 compression (stock) using normal headgasket and you can run 25 psi all day no issues.

[@stevesloan6775]

I e always struggled to listen to your live pod casts, but this one has structure and flow. Please study this upload for what worked and repeat and rinse! 😊😂 I loved how you had such a good insight to the history, and how you managed to follow the tale to the point of what made true greatness in 2023. Dogged determination 101! 😎🤜🏼🤛🏼🍀🇦🇺

[@boneyman5365]

Very informative 👏 I loved every second of it!!

[@spooler7828]

Mark built my VQ37VHR. Engine has been great. I have had one learning curve on it and got a headgasket. I know all about being in unknown territory. We learn and move on. Just fixed a couple of my problems and I am just about completely back together. I am ready to enjoy the car again. When you get to 900-1000whp crap happens. Just the way it is.

[@vvevvevvvv]

I think Formula Drift driver Chris Forsberg went to VQ37 turbocharged engine instead of N/A VK56 for his 370z. He eventually went to VR38, because VQ37 block started to crack at 900whp mark.

[@spooler7828]

@@vvevvevvvv That's not true. None of that data has been shared. It is unknown what the true story is. I have been at 900whp for a while. The block doesn't crack.

[@vvevvevvvv]

@@spooler7828 sure, of course. I am just telling the story Forsberg told somewhere.

[@spooler7828]

@@vvevvevvvv We shall see. I am on a standalone now with all the extra sensors needed. I fixed my high IAT'S and emap issues. VQ's don't like a high drive pressure ratio. It causes the block to dance around and you end up with a blown headgasket.

[@stevesloan6775]

6.20 is nuts, but 5’s are mind blowing! 😎🤜🏼🤛🏼🍀🇦🇺

[@slfrules1]

Try out WPC treatment on the rockers. It's like micro shotpeening that impregnates some kind of proprietary moly magic. Mike Kojima from MotoIQ recommends it. Thanks for all the insight!

[@hpa101]

"Have tried it with no better results." - Mark Mazurowski (via reply on Facebook). Glad you enjoyed this one! Cheers for the support fella - Taz.

[@slfrules1]

Oof! Too extreme. Best of luck with the valvetrain development! You'll have to design your own rockers and cams and spec the springs/retainers to suit the ramp profile? Y'all are going deep into the confusing maths. Guess that's why y'all set the records!!

[@gordowg1wg145]

Still waiting for folks to go "old school" to the days when the head and cylinder block was cast as one piece - modern machining techniques should make it reasonably simple to machine a billet head and block assembly, and the matching crankcase assembly it's bolted to. You can't blow a head gasket if there isn't one, and with a two(?) part crankcase there isn't such an issue with big-ends fitting down the bores and compromised webs..

[@rubezahlmountainworks7974]

I am loving my mazworx cavg adapter!

[@carllourenznaidoo2470]

Sr20det ❤

[@stevesloan6775]

I can picture steel bore liners, would actually bed in (move slightly and not really move again).?

[@stevesloan6775]

Remember every good story has a three act structure. Well worth researching story telling.

[@nismofreak33]

hell yeah

[@griplimit]

God’s motor!!!

[@stevesloan6775]

It would be interesting to try cryogenic treating the rockers. From my research it’s the one part of a motor that makes sense! 😎🤜🏼🤛🏼🇦🇺🍀 P.S. look on KZbin for drill bits that have been treated and how they last crazy longer.

[@mkproductions3651]

Is this live?

[@valleyautodiagnostics]

None of these interview live

[@hpa101]

No, it's pre-recorded. We haven't really thought about live-streaming the podcast at the time of recording, but I'm not sure the juice would be worth the squeeze. We sometimes have interruptions due to connection issues, our noisy neighbours (bike shop on one side, engineer the other) and once the guest even had to take a moment to answer their front door 😂 If you have a question and haven't already left a review for the podcast on a platform that allows you to leave a written one, that is an option for you though - Taz. (Apple and Podchaser (I think!) allow you to leave written reviews) - hpcdmy.co/reviewpodcast