Nothing hurts more than being soft and not enough thickness. Story of my life...

Best informational video to come out on rb's since ever

Thank you Herman for taking the initiative to do something like this! Platinum is at the cutting edge of RB development

Great video guys 👍

This man has broken so many hearts.

Thats cool. Over priced N1 block is the same as a RB25 block. Must piss people off.

Man you guys have the best videos on RB’s and GTR’s hands down. I really appreciate all the content also this video helped a lot thanks for all the knowledge! Hope u do a video on 26 vs 25 heads

Unless you are a credentialed Engineering or you have real experience testing and building competition engines, you should reserve tyour OPINIONS. Herman did a very solid test. Higher hardness means higher compression strength! No way to argue that! His testing shows which block will have the highest compressive strength in the cylinders. That was the intent of his testing. As correctly noted by a slew of Nismo fan boys and self-proclaimed engineers, high hardness also comes with a tradeoff in toughness and tensile strength. Parts of the block under tension MAYBE more subject to failure IF the stress and strain in tension exceeds the mechanical properties of the materials. Why do more 05U blocks crack than N1 blocks? If they are higher in hardness there are more brittle and subject to impact. However, unless you drop a valve in the cylinder or a piece of porcelain off your spark plug, impact resistance is never the issue. Nine times out of ten, engine failure occurs because of bad tuning, low-quality machine work and using crappy parts. Why would an OEM not make the best parts possible? One word: BUDGET! The aftermarket can afford to have a much higher cost per unit than the OEMs. I've built more high-power RB engines in the States than anyone. I'm also a credentialed Mechanical Engineer. www.dsportmag.com/the-cars/the-worlds-most-streetable-8-second-nissan-r33-gt-r-project-rh8/

Awesome video guys👍 Nothing beats facts and scientific testing. You are unquestionable the best resource for Skyline and RB content on KZfaq😀

man, this is a heartbreaker.. i was thinking i had something special with my '23U' but Herman's tests prove it to be no better than a garden variety '05U' and neither one of these are any less than an N1.. they're all the same after all. wow!

This was just flawless. I appreciate when guys put in work like this for the culture

That 66.6 kilo block though.... The Devil's Heart.

thankyou , there is nothing i appreciate more then 100% real data. keep up the good work gentlemen.

Herman I really do appreciate all your hard efforts in going above & beyond for all this information.

Great content... killing it as usual, thanks guys!

Thank you guys! Was looking for solid info for sooo long!

Herman, thank you so much for taking the time to do all these testings and sharing it with us. Your video definitely helps clarify a ton of misinformation and rumors that for decades have been floating around, but there's nothing better than to prove with empirical data the real science behind it all. One question that I've always had, is have you ever compared the RB25DE, vs RB25DET RWD vs RB25DET AWD blocks head to head? Maybe the RB25DE & RB25DET RWD blocks are identical, however I've always wondered if the RB25DET AWD is beefier compared to the RWD.

This channel is the holy grail for English speaking rb nerds. You guys are doing God’s work

26/30 combo 👌🏻

Great video Andrew and thanks Herman for taking the time to do it. I would have really liked to know how the rb20det faired against the rest. Thanks again.

The sonic testing part was BADASS! Definitely haven't seen many of these tests done and posted on KZfaq.

I love GTRs and one day I will get one. I learned so much in this video than I have ever since i heard about a GTR. Great job guys awesome video.

What an awesome video, I love all RBs 👍🏻 thanks Herman and Andrew for a killer vid with bulk facts 🍻

Thanks for clearing the myths in the internet cause forums are a joke. 👌

Incredible info, testing parameters, and results.

Thank you for all that work and sharing.

Rb30/25 💪

Really informative video. I learned heaps. I hope to see more!

Fantastic video thank you so much for the information greatly appreciated

I'm guessing there are going to be quite alot of n1 blocks for sale real soon :D Thanks for taking the time and effort for making this vid MotiveDVD!

Actual facts! This is perfect! Keep it up mate!

Awesome information especially for us in the US. Who are just getting real deal access to these blocks nowadays

Very educational, good work!

Bloody hell i love this so much i have learnt so much

Great video explaining great facts and testing methodology. I've never knew that could be a way to test engine blocks... rb30 ftw

Awesome video! Learned heaps of new stuff. Cheers👌

Cool video! Wish they tested the RB20. Wonder if it shares the same casting as the other engines. The 78mm bore would be the one with thicker walls

Great videos mate tons of knowledge mate good on you!

Very interesting thanks for posting.

Fantastic video, one of your best

Thank you very much for this video

Incredible content guys!

Mad respect for this man. ( coming from a welder who does ndi tests on welds with powder, xray, and magnets) however i was kinda confused about the test of the rd 28 block considering the results you got on hardness. I agree that the resizing the bore on the RD probably isnt the best idea but everyone is free to do what they want. Cheers mate hope to see more videos from you

Great info. Am a fanboy of any iron block straight 6. A good balanced and strong by nature motor.

Would you consider showing the same test for multiple varieties of Japanese motors? I would like to see the VG And VQ motors tested, the 4g motors and maybe compare them against the Honda motors. EJ motors would be a great video too. This video put a bunch of keyboard warriors in their places. Great job guys. I love it.

Enjoyed the presentation, thanks.

amazing and very informative vid!!

Great video. Thank you.

What an interesting vid. Well done Andrew

This needs at least a million views

Outstanding video sir! Really enjoyed learning valuable information, with a good morning coffee :)

I appreciate your search & time you guys put in, great job, how about a quick comparison with 2jz?

Thankyou heaps for this video Andrew and Herman, got an rb25 block here I’m gonna throw a 26 head on

very informative video, thanks for sharing.

Excellent testing but it is worth noting the hardness might change over time and heat cycling. it wouldn’t be unreasonable to suggest the newer N1 blocks might be softer as a result of the virgin steel and lack of heat cycling, further more the thermal properties of the steel have yet to be tested there may well be a significant change in hardness malleability and tensile strength under various conditions.

best vid on RB engines thanks guys

GREAT INFO!!!!!!!!!!

Super valuable info. Bravo

More videos like this! Fucking awesome! Very informative and detailed video

what would be interesting would be to manufacture a billet rb20 block to solve the breakage problem and take the rb20det engines to 1000-1200 horsepower, being the engine block reliable and strong,burn less fuel and at the same time make it a powerful engine, optimal for driving on public roads.

Would be awesome to see a billet block thrown in the mix just too see another comparison!

Awesome video

And the deck on an after market sbc is always around 12mm to 13mm or 1/2 inch... so good!!

Great vid publicly showing what a few of us have been doing, only criticism is the proper thrust face that you really need to worry about is not on the hot side, but on the inlet side, thats where the power stroke force is, never the less nice to show the comparisons between the block designs which i never have known.

Great info!!

Awesome video!! Would love to have all of Herman’s knowledge!

Good video

Very interesting stuff.

Great video!

this content is so awesome

Very good video

Excellent video 👌🏻

I'd love to see this type of video about the SR20.

Absolutely amazing video man . All great things to know and look out for .

Awesome learning here

SR20DET comparison like this including RNN14 54C Version would be great...

🤔 I used to think the rb26 would be best to build but now I would actually build a rb25 an just pick up a spare long block when the 800 horsepurs escape all over the engine bay 😂

Oh and amazing video guys

great video, please, make video about RB motors head head difference. from Russia with love)

What do you think of the 75t block how do u tap into it for a turbo if it don't have the plugs

nice vid, wish they included rb20 testing

great video

Fantastic tech vid. Great work! What sort of money can we expect to pay for a block report like this?

Its is some of the best information i have ever seen on the RB's. Data is key to development not the verbal diarrhea that comes out of peoples mouths. Cheers Andrew

E85 is not the determining factor for oil squirters fuel doesn't cool your wrist pin or bores GM tested this heavily for the c6 Zr1 the temperatures are pretty high there if you do nothing about it service life is significantly different.

When you said "RB" I was thinking BB Mopars!

Killer video. 👌🏻

Have any shop done the RD28 with RB26 head combo? Have some RD blocks laying around here and would love to know where to get pistons and rod for this

If you offset the bore will the rod sit on the cam properly?

thanks for the infos !

Thanks so much for the video. Never thought of using Sonic testers to test cylinder thickness. By any chance have you tested the 1uz block at all. It's rumored to have not enough meat to over bore much. Wondering how true this is.

I am interested in replacing the Rb25det in my GTS with a Rb26dett, de-stroked to 2.5L, keeping the 26 head and possibly the low mount twin turbo setup. The aim is to build a good time trial / targa car so pwr only needs to be around 280kw - 320kw with the emphasis instead on mid range throttle response and spool time (can already hear ppl saying “well keep the 26 displacement”) Can’t find any info on destroking a 26 to 25

@Herman Urriola can you say from your experience with rb blocks if a block that may be too thin in a particular cylinder bore can still be used in high power build successfully if the block is completely cement filled. Also is there any benifit to a street driven build going with a half filled block or do you prefer a fully filled block instead with oil cooler larger capacity sump etc. seeing that most of the cylinder pressure is at the top half of the block.

Love the nerdy stuff here. But now I need $1300 for that PR8 Sonic tester

@Herman Urriola Making a guess, N1 block may have been blueprinted from a normal block, good for circuit racing where big big power is not the ultimate goal. How they been compared against other blocks for total geometric state of the block?

in terms of an offset bore, how do you then center the con rod to the new offset pattern with the cranks having that non offset to it? I'm just confused

Love these guys. But there are some points missed here and not explained much about the already tried and tested N1 blocks. One example is its metallurgy. I saw a detailed comparo years ago on a JDM magazine, it covered its metal contents, on different temps. also. If I could just only find it again.

Good work Andrew! Think we could get some SR20 love? Rocker arms facts and myths hint hint

I wonder if the measuring device is effected when one places the instrument on the object being tested along with their hand just a question?

Hello ! What hardness units are these displayed on the screen ?