Persons have made 500hp on e85 and rumors of even 700hp. I've seen a guy in Australia make 900+hp on stock rods and pistons but he did headstuds, rod bolts and built head.
I've had a rebuild about a year ago On my 25det neo Comestic steel headgasket Arp headstuds Acl main bearings and big end bearings Machined crank for oil pump drive collar. How much power do you think it'll handle?
Pistons and Rods will be hanging on for their life at 500whp. The pistons hold together pretty well if you have a good flowing turbine housing and exhaust, and if you avoid detonation. The rods in the neo are supposed to hold up better than the S1/S2, but big torque numbers snapped my S1 rod right in half like a joke.
The plazmaman manifolds are great, but for an RB20DE, I wouldn’t invest a ton of money into it. Toss a stock RB25DET Neo turbo on it and some turbo injectors, with a good tune!
@@MayesBuilt yeah for sure! just a little hard finding a 25 neo in my location they all get snagged up fast. So I thought if just push for around 330 in the 20 I got 440cc injectors as well so nothing to crazy
There are a lot of variables that will help you decide what oil system you would want. I went external wet sump with a larger pan and Ross head drain. Any road course car will require baffling or dry sump.
Short block meaning an assembled bottom end with no head. Long block being a complete engine with no accessories. The tall deck blocks are just called RB30’s whether they are factory RB30 or aftermarket.
Yea. When people do the swap, they generally just grab a Wiring Specialties harness and weld the holes in the oilpan where the axle went through. pretty simple job, but an RB26 is essentially a non-VTC version of the RB25DET Neo.
Crank collar mod is needed. There’s rumours floating around that some were long nose from factory, but that’s a myth until someone can prove otherwise with photo evidence as far as I’m concerned.
Here from rudniks live stream (on atm of this comment) heard rb25 in s10 and picked up my phone and searched for it lol
Happy birthday btw
Rb30et in commys it a single cam turbo can ran 26det head one big bore rb check out Bara 6cyl turbos classic skider
So rb25 neo is the best model ?
Absolutely the best production engine. Unlimited budget, would be RB30 bottom end with an RB25DET head.
@@MayesBuilt rb25 neo vs rb25 s2
@@MayesBuilty??
How much hp can the standard internals hold of a RB25DET neo engine ? cheers thanks
I have done 400 hp on a stock engine. You risk piston damage when you try to push much more than that running stock pistons and ring gaps.
Persons have made 500hp on e85 and rumors of even 700hp. I've seen a guy in Australia make 900+hp on stock rods and pistons but he did headstuds, rod bolts and built head.
Malaysian tuner made 600whp on stock rb25det
@@gulamnabi506video? Article link? Something guys
I've had a rebuild about a year ago
On my 25det neo
Comestic steel headgasket
Arp headstuds
Acl main bearings and big end bearings
Machined crank for oil pump drive collar. How much power do you think it'll handle?
Pistons and Rods will be hanging on for their life at 500whp. The pistons hold together pretty well if you have a good flowing turbine housing and exhaust, and if you avoid detonation. The rods in the neo are supposed to hold up better than the S1/S2, but big torque numbers snapped my S1 rod right in half like a joke.
Doesnt the 99 rb25det neo have the longer crank collar?
The vl commodore doesn’t come with an rb25, it comes with a rb30
They are still in the RB family of engines! Thanks for watching!
From boosted bois
I got a S1 rb25de. Can I use 5he vct oil return T it and use it for turbo oil return?
switch to -10 AN or oe turbo drain into the block, as it is bigger, then you should be good to use it for both.
@@MayesBuilt 10an on the vct drain instead of the one it got now I'm guessing.
Hey thinking of buying rb25de neo non turbo I want to put it tin my 1995 Nissan D21 any tips on it?
Great video! What intake manifold would you recommend for a rb20de neo ?
The plazmaman manifolds are great, but for an RB20DE, I wouldn’t invest a ton of money into it. Toss a stock RB25DET Neo turbo on it and some turbo injectors, with a good tune!
@@MayesBuilt yeah for sure! just a little hard finding a 25 neo in my location they all get snagged up fast. So I thought if just push for around 330 in the 20 I got 440cc injectors as well so nothing to crazy
Would the rear head drain be enough or adding oil delivery blockoffs as well improve odds against oil starvation?
The most important mod would be a good baffled catch can if not a dry sump. Crank case ventilation is half the problem.
There are a lot of variables that will help you decide what oil system you would want. I went external wet sump with a larger pan and Ross head drain. Any road course car will require baffling or dry sump.
When ypu say long block, are there shorter rb blocks? I was under the impression that the 20,25,26 were all the same size block. 😀
Short block meaning an assembled bottom end with no head. Long block being a complete engine with no accessories.
The tall deck blocks are just called RB30’s whether they are factory RB30 or aftermarket.
@@MayesBuilt ah ok, thanks for the quick awnser
Nothing against the rb25 but could you remove the rb25 and install a 26 on a r34?
Yea. When people do the swap, they generally just grab a Wiring Specialties harness and weld the holes in the oilpan where the axle went through. pretty simple job, but an RB26 is essentially a non-VTC version of the RB25DET Neo.
Need collar crank for rb25neo or just oil pump gears ⚙️ ?
Crank collar mod is needed. There’s rumours floating around that some were long nose from factory, but that’s a myth until someone can prove otherwise with photo evidence as far as I’m concerned.
@@Zonda1996 I heard the rumor but never saw a long nose RB25DET Neo.
Change the name of your video and you’ll get more views . It was hard finding this video . Just thought I’d say 👍🏽
Done!
From ricer miata
god 1500 bucks is such a steal these days haha
I was running 320whp with stock turbo ez
probably a bad tach calibration on the dyno.
Are you ruining a completely good engine that could do 500 000 Australian kms?