RB25DET vs 1JZ-GTE - Engine Block Tests and Comparison

We did RB30 vs 2JZ engine block comparison, now its time to test and compare their little brothers. The RB25DET and the 1JZ-GTE engine blocks.
Please note, we are only testing the bare block, no other ancillary parts that go with it.

[coryholbrook]

So much more respect for the Supra’s 1J/2JZ engine after watching these videos. They engineered the crap out of these engines, no wonder they’re so legendary.

[ClutchKickJunkies]

As an RB lover the stats break my heart 🤣

[stiofane]

would love to see the m50b25 comparison . its a well capable platform

[alldanameswheretaken]

It’s not just the blocks that make JZ king. They oil pumps are superior, the stock head gasket is damn near perfect, the heads are awesome un ported. List goes on

[scaniamanHR]

Can you guys do some 4 cylinder comparisons too like the 4G63 block Vs the 4B11 block or the SR block Vs the 3S-GTE etc? I've got an Evo 5 so would be great to see some testing done on the 4G63 block

[tumdeax]

The 1JZ is 11 KG LIGHTER! With thicker bores too.

[glentight]

If you want them to test a block.... strip one down and send it in🤣

[Jonssown]

3S-GTE Gen 2/3 VS SR20 would’ve been very interesting too. :)

[AwkwardBalloonGuy]

your production quality and information delivered have had a huge increase over the past year. and you collabs with nitto and PRP have deffinately helped with that. great job Motive!

[Garage]

Oh damn... When you guys can get your hands on a B58 block you have to do another comparison! New Supra block vs old Supra block. Would blow up. Plus I'd love to see the information.

[darius]

You guys are awesome with these Platinum Tech engine nit-picking series. No one else in the world does it

[bogader]

I’m glad I went with the 1jz in my r33 now thanks for the info been really enjoying the content

[Runmeerkat]

I would like to see the german S54 just out of curiosity.

[nathanlenehan]

You need more subscribers Andrew. This channel is 20 times betters then half the american car channels going.

[willnorton]

Im loving these series of videos. Its all facts and no bs.

[karankangal]

Great video again guys. The 1JZ was designed by Yamaha for Toyota, as a replacement/upgrade to the M series Toyota six cylinder engines. The 7m gte which came in the JZA70 Supra was a great engine but suffered from overheating, head gasket and head stud issues where the head would tend to lift at high boost. As a die hard RB man, these videos are heartbreaking, but give credit where it's due, the JZ engines are monsters.

[aDaWaN]

Thanks for the video and the objective numbers! One correction: the video says deck height, but I think deck thickness is meant. The deck height is the distance between the crank centerline and the top of the deck, essentially the block height. This is the main difference between a 1JZ block and a 2JZ block: the 2JZ block is the taller of the two.

[Daemione]

I can't see enough of these - so interesting! Looking forward to seeing so many more of them with different engines...

[tw]

Doing straight sixes might as well throw an N54 and N55 in there too :D
Loving this series, good to see the data

[Wiggy]

Leave following these tech series. This is phenomenal. Thank you Andrew and crew. I'd like to request an answer to one of the biggest questions of vs B58 (BMW)...Hoping you can pull this test off in the near future.