Why did our R35 GT-R Engine Blow Up? So Much Carnage in the VR38 - Motive Garage

In this episode of Motive Garage, we tear down the VR38 engine on our R35 GT-R to find out WHY it punched a hole in the block and how bad the damage is. A hint, it's very very bad.

Motive Discount Code: MOTIVE5

Motive Video creates content on modified performance cars, focussing on Japanese cars, but also European and hi-tech V8s. We build project cars, showcasing the development and testing, as well as attend various events around the world. Our videos include:
- Project Cars
- Technical Features
- Event Coverage
- Car Features
Providing high level and accurate technical knowledge, data and education is our core mission statement, as well as showcasing the best events, cars, workshops, companies and parts the performance car scene has to offer.

We also run our own private events including:

These unique events not only help showcase some of the best cars and workshops on the planet, but gives us exclusive content you can only see on Motive Video.

#r35gtr #gtr #r35 #nismo #dct
#projectcars
#motorsport
#turbocharger
#skylinegtr
#gtr #tx2k

[brendo]

Pretty upset I wasn't contacted to diagnose the failure, do you know how many videos I've watched on cars? How many hours I have in NFS Most Wanted?

[slickstrings]

Wear gloves guys. Mechanics are over represented in deaths from cancers like lymphoma from exposure to fuels and solvents.
Rip timmo.

[Legotruck]

that fuel pump test rig makes me nervous. Spraying fuel in the air using alligator clips to complete the circuit that can spark....yikes. I'll just imagine it wasn't fuel, just yellow water.

[oyurcha]

Keyboard engine expert incoming. Judging by the abundance of those marks on the cylinder wall, the valve head gave out way before the rod did.

[Stiffkovic]

I’ve done some pretty rural shit in my time, but that battery next to the fuel was very keen 😂🫡 lynch would be proud

[dreednlb]

Most youtubers end with "Like, comment, subscribe!" I've never seen someone get so bent out of shape over comments. Not just this video. Even if you don't like what the "keyboard mechanic" has to say, at least it's helping the algorithm. You're welcome.

[tkkk]

I’m calling it a dropped valve, classic case tbh

[satanaz]

my mate paul told me the issue is that gasoline when burned inside the cilindder makes a lot of pressure, and sometimes the piston and rod don't feel like taking that overwhelming pressure anymorebecause of depression and they just end their lives... so sad. rip in piece little rod guy :(
if you are stuggling with depression, please call 911

[liamjohnson]

Nissan gods giving you a test of your loyalty bigtime on this one! Can't wait for the development vids with the fresh engine

[HashiriyaSquadron]

I reckon you simply dropped a valve and the rest was a chain reaction going off the damage to that one cylinder.

[samthesrman]

That fuel pump setup was the most dangerously ghetto thing I've seen in awhile, I've seen dudes blown up with petrol, please rethink what you're doing there..

[andynater]

I stand by my comment from the previous episode - It was likely tuned at some stage meaning much more pressure on the bottom end, they flashed it back to stock and sold the car. Rod let go from fatigue.

[mediocre_moto]

Quick tip: When you're doing a pump bench test like this with exposed fuel vapour (not a great idea to start with), do the final power connection at the battery side and not at the pump. If there's a spark when you touch the wire at the pump end you'll have more than a holed block to worry about.

[bigblockimpala]

See that on the Seadoo supercharged engines, ours is from dropping the valve heads

[pedrovalenzuela]

Part of me was asking why you would just go back to a stock motor, but then realized wait this is Andrew! He wants to take us step by step and show us the progress of every little upgrade along the way. Keep up the great content man!

Can you guys build a car to attend World Cup Finals in the USA for next year?

[liddz]

Great video, unlucky result with the engine that must be frustrating no doubt. Ps couldn’t also help but worry about the risk of a fire when I saw that fuel pump test😅
All the best with the rebuild 🤞🏾

[markkendall]

I’m really pleased you have decided to go for a stock engine & document your progress through standard, to each stage of modification 👍

[Hydrazine]

As a post mortem, maybe do a liquid penetrant test on the remaining 5 conrods and the undersides of the pistons?

It is a long shot, but if either the rod itself let go, or the underside of the piston dropped the wrist pin (gudgeon pin) due to fatigue cracking, you _might_ see evidence of that on the remaining parts. Those parts are likely from the same batches and have undergone the same load cycles and temperatures. You might find cracks that were not yet big enough to cause failure.

Normally you can identify fatigue cracking by looking at the two fracture surfaces, fatigue cracking creates a very distinctive pattern, but here the failed parts are properly mangled.

[NCR]

Ouch, sorry for your loss. Hit the material failure lottery with that one, xray/crack test the next lot but it can be anything in the end.. looks like a valve broke off and did the old bounce-aroony. You can see the pit marks while it got smashed into the head until the rod broke.
16:13 and 16:35 the shear line on that valve stem is wild, I'd say that's your failure, material failure that caused a crack to propagate, it's so clean it must have just dropped straight off into the cylinder in one piece. VR platform isn't cheap, it's why I stick to LS.

[GTRliffe]

you know one little spark from powering the pump that way could potentially burn down the crd workshop