Jump to content
SAU Community

Recommended Posts

Hey SAU,

what sort of power can you get untill stock internals need to be modified on rb25det? Only reason i'm asking is my setup upopened would get me around 270-300kw on pump fuel, but i'm going e85/flex fuel now and that will give it more power and yeah just want to know.

cheers

Link to comment
https://www.sau.com.au/forums/topic/429022-rb25det-how-safe-are-internals/
Share on other sites

Depends which RB25 and what supporting mods etc... Condition of the engine? How it's been treated? Intended use...

Go find the 300kw+ unopened thread which will answer all your questions and allow this Thread to be locked.

how much hard mileage has it done so far?

Mine? About 9000km... Including a close call with a lean out and also overheat (Haltech ECU protect stepped in luckily).

Well here's my setup

Garrett 3076r .82 rear housing

6boost manifold

50mm turbosmart wastegate

Front facing plenum

90mm tb

Sard 850cc injectors

450lph e85 pump -will have surge tank

Link g4 plug and play

Engine done about 120ks easy life, only reason I asked as I was going to use pump fuel but now going flex fuel/e85 and I will gain kw and will have over 300kw on a max of 17psi and wanted opinions on how long internals will last

I had a similar setup and maxed the turbo out... At that stage my engine had done 140000km and has had a rough life... Ran it on 360kw where it was thrashed...

It now has the HTA turbo running 390ish and has 149000km...

It's all in the tune! There is no magic number that will make your engine safe.

How much of a gain did you did from flex fuel? Okay hopefully when it gets tuned it's done right

About 30kw on low boost... We didn't tune pump 98 fuel on high boost though so no full boost comparison. But it's nice and responsive on ethanol, smells good too ;)

350 is about the safe limit, we have a few in the 400's but i would not recommend it.

on a R33 motor right? don't the ringlands let go? I know R34 RB25DET NEOs are built as well as tanks

Hey man to be honest ill tell you a little trick water meth injection if u can do that u can push it further on stock internals

Lolololol..... So you are trying to tell us you can increase the strength of the engine internals? You sir are brilliant!

No I'm saying you can push the internals a little further with water meth injection like less chance of detonation at higher boost.

You can do that with E85 too, its not new and its not a secret!

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

    • You just need to remove the compressor housing, not the entire turbo. I would not be drilling and tapping anything with the housing still on anyways. 
    • So, I put my boat on a boat. First of all, I'm going to come out and say it. Why is Tasmania not considered a holy goal, an apex that all road-legal modified cars go to, to experience? This place is an absolute wonderland of titanic proportions. If people are already getting club runs for once in a lifetime 30 person cruises to Tassy then I've never seemed to see it. It is like someone replaced the entire place with an idyllic wonderland for cars, and all of the people living there with paid actors who are kind, humble, and friendly. Dear god. After doing a lap of almost all of the place I've found that it's a great way to find out all of the little things that the car isn't doing quite right and a great way to figure it all out. All in all, I drove for 4 hours a day for a week and nothing broke. I didn't even need to open the engine bay. This is by all means a great success, but it has left me with a list of things to potentially address. I also now have a 3D printed wheel fitment tool which annoyingly hasn't got any threads in it to actually assemble it. I might be able to tape it together to check the sizing I actually want to use, but it'll likely involving pulling the shocks out to properly measure travel at least at the front, and probably raise the car while I'm at it, at least in the rear. I scraped on quite a few things and I'm not sure how else to go about it. I was taking anything with a bump at what felt like 89 degree angles. And address those 10 other tasks. And wash the car. God damn it is dirty. And somehow, the weather was perfect the entire time - And because I was on the top of Mt Wellington it turns out it was very much about to freeze up there. I did something I typically never do and took some photos up there in what must have been -10 and the foggy felt like suspended ice, rather than mere fog. If you own a car in Australia, you owe it to yourself to do it.
    • Damn that was hilarious, and a bit embarrassing for skylines in general 😂 vintage car life ey. That R33 really stomped. Pretty entertaining stuff
    • Hi, I have a r32 gtr transmission. Does any of you guys have an idea how much power it will hold with the billet center plate and stock gearset? At what power level and use did yours brake with or without billet plate? Thanks, Oystein Lovik
    • Saw this replica police car based on a Mitsubishi Starion XX parked next to a 'police box' (it's literally a box) in Hirohata, Himeji City in Hyogo prefecture the other day. It's owned by Morii-san who is a local Mitsubishi Starion enthusiast. According to a local radio station blog post, he always wanted to make a police car himself based on ones he saw in his favourite Manga comics.  As it's illegal to modify a car to look like a police car and drive on the road, Morii-san tried many times to get permission from Aboshi police station headquarters nearby. They refused initially by after they got tired of that they granted him permission. However, the car can only be displayed on private property and obviously can't be registered as long as the police livery is present. The car was completed at a cost of 1.5 million yen (US$ 10,000) in addition to the car cost. A location was chosen outside Hirohata Police box where the car can easily been seen from the street. Morii-san has two other Starion road cars, both widebody GSR-VRs.
×
×
  • Create New...