Jump to content
SAU Community

Recommended Posts

Originally posted by Works Auto
Originally posted by Joe

What a crock of crap. Every rb25 ive seen do more than 300 at the wheels has cracked a ring land or something like that.

There just not suited to high boost . There like a NA motor with a turbo on them.

Both are mortal engines and are a fair whack weaker than the RB26DETT.

That does it! I'm going out to get a stock RB20DET tomorrow and replace my weak handgrenade RB25DET, right after I fill my boot with wet cement and get those cast lead doors and bonnet made up.:thumbsup:

240rwhp isn't bad for an RB20det, does it do the high 12 to confirm the power, shouldn't be a problem if its in an R32 given the power to weight, it should net that time without blinking on street tyres.

  • Replies 109
  • Created
  • Last Reply

Top Posters In This Topic

It was actually 250rw (KW) not HP I think thats about 350+rwhp though. To answer your question....The car hasn't run in this state yet and may never be run like it. Its a s13 Silvia with fully stripped interior....see pic below. The car will be for sale very soon as he, like me is buying a 4WD.

Its a bit of... RB20 = revs... RB25 = cubes.

Both make their power and have completely different manners...

I used to be a RB20 pure-ist... but by looking at the setup on a certain GT powered RB25DET with 280rwkw, I changed my opinion.

Btw: Cam: How much does he want for the S13?

I would be interested to know what boost levels were required to make that power. My aim is around 230rwkw on about 16psi for everyday duties, you can run a lot more boost through a correctly tuned rb20 upto 22psi probably but not for ever.

Clint, yes you can run over 20psi on a stock rb20det but the room for error is so tiny that its not worth it. Previously the car had made the same power with 21psi but now with some more fine tuning it closer to 18psi but I am not 100% sure. He drives it every day and has not problems apart from the wheel spin...read:Twin Plate OS clutch :D

Price for the car (Now with rear seat and carpet) is around the 20K mark but I am not sure exactly.

Guest Works Auto

I think you guys got a bit carried away.

Mostly what i was saying is rb20 is a stronger engine than the rb25. its a known fact that rb25 have weaker rods than a rb20 does.

Which means you can run more boost without anything breaking.

Stock Internal wise i mean.

"Waits for the angry replies" :D

Originally posted by Works Auto

I think you guys got a bit carried away

What do you expect when your first 2 posts on this forum contain......

"What a crock of crap. Every rb25 ive seen do more than 300 at the wheels has cracked a ring land or something like that.

There just not suited to high boost . There like a NA motor with a turbo on them.

Rb25 :lol: :lol:"

Telling a long time forum member his POV is a "crock of crap" is a great way to introduce yourself to the forum.

Add to this the fact you own an R32 GTS-t (no chance of RB20 bias there :D )

You keep mentioning the ability to run higher boost with a standard internals RB20DET, there's no need to run higher boost to make the power when you don't need to!? I rather 250rwkw on 13-14psi than stress a "internally standard" 80-100+K engine on 18-20+psi.

I'd like you to direct me to the known facts on weaker RB25DET rods? Not that I'm doubting your claim but I'd like the "known facts".

Guest Works Auto

What cant you take it ??

that a car 3-4 years older can smoke a car thats bigger in capacity ?? thats saying something huh ??

you think im talking shit..

come down to motorplex next week for a race .

I think you have your head up your ass.

Bit like most of the r33 drivers. thats why i bought a r32 :lol: :) :)

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • I used the radium thing, makes the whole parallel assembly a lot more compact compared to any other way of doing it 
    • Racetronix also sells those ethanol content sensor bypass blocks. Adapter, Flex-Fuel E85 Sensor High-Flow Bypass, In-line No Sensor (ADF-FLEX-NS): Adapters - Flex Fuel | Racetronix Ethanol content sensor are originally designed to be on the feed line. These bypass blocks are meant to be ran in the feed line and not return. The continental ethanol content sensors have a 3/8" ID and not 5/16". This is why they are ran on the return line directly in conjunction with a low threshold sampling value VS in the feed with one of these blocks.    Haha we think alike, I used both original feed/return for 8AN feed, and one of the Hicas lines as a 6AN return. I also capped off and left the other Hicas line as a spare. 
    • Interesting, I haven't read about the issue with oil getting into the speedo in the cluster before. I'll have to take more notice with mine. The speedo on my R32's when I've run factory diff and tyre size have never been accurate as far as I can remember. The non Type-M GTS-t did come with 15" 5 stud wheels and smaller brakes, but that's less than 5% of them.
    • Good to hear the condenser you picked up off my brother worked all good. Do you think there could be an issue with your AC compressor itself or the clutch on it then? I don't know a lot about them so I can't really help but keen to hear what it ends up being. Keep the build thread going man, it's nice to look back on over time.
    • This is a story of my life things, I learned eventually (thanks to someone calling me out) that my enthusiasm for discussing and sharing ideas that it came across as arrogance and I'm like... WTF?!    One thing I'm pretty sure I justifiably pride myself on is knowing that everyone will have things they can teach you, and you're always going to find out that something you think you know turns out wrong - you just don't know what it is until you get there.   Just the bursting enthusiasm that comes with ADHD when you hit something that gives you dopamine dumps can come across like you think everyone else is wrong or don't matter. But yeah, I'm a software engineer by trade and also do tuning in weekends and 100% have long had a reputation for  quickly making connections when resolving problems or forming solutions that I've sometimes had to take people form a long walk from start to end to explain how I ended up where I did when it's seemed "too simple" when I've stated my initial case, and had the "WTF" type reaction when they've realised how much was actually considered haha.   My reward is that I get all the curly problems thrown at me.
×
×
  • Create New...