Jump to content
SAU Community

Recommended Posts

Good afternoon,

Well I have done a search and not totally satisfied with the info i have recieved on peoples experience with the 25-40 as alot of it is related to people running it on the RB20's or on RB25's with half the supporting mods, so thought id start my own thread about peoples experience running this turbo with all supporting mods.

My motor is being rebuilt with forgies, gtr rods etc, 720cc injectors, pump, cooler, exhaust and the rest..

Will this turbo be laggy with a decent setup?? I will be running standard cams/heads with a microtech ecu.

Ive read through threads that this turbo is a little laggy but its mainly from people who arnt running all supporting mods or using the turbo on an RB20..

Im hoping for atleast 240rwkws and decent boost coming in from 3000rpm and onwards...

Any input on ur experience with this turbo on a well setup RB25 would be excellent.

Thanks

Edited by Dean_HR31
Link to comment
https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/
Share on other sites

Its the worst turbo of the ball bearing brigade.

It makes a tad more peak power 2530, but with a much poorer midrange... so lag vs gain its not worth it.

Moral - the 2530 is the choice, then say a 2835 or similar, just skip the 2540 altogether, old design

The 28-35 turbo was out of the question as i want a turbo that looks standard. Do not want to replace turbo in the case of an EPA.

And I couldnt find a second hand 25-30 for sale... Do they also look standard in size like the 25-40??

Edited by Dean_HR31
The 28-35 turbo was out of the question as i want a turbo that looks standard. Do not want to replace turbo in the case of an EPA.

And I couldnt find a second hand 25-30 for sale... Do they also look standard in size like the 25-40??

2530's are the same, its the comp wheel thats different (and too big)

GCG hi-flow is what you should have purchased, perfect turbo for 250rwkw :thumbsup:

Or even a GT-RS or one of the other good options on the market

Obviously though a GCG hi glow wont be of the same quality of a HKS turbo!??

I want something reliable as my engine is costing me alot of money...

Ive heard nothing but excelent reliability from HKS turbos...

Can i just have someone confirm that the HKS 2530, 2535 & 2540 all look the same - stock size turbo looking..?

I am planning to put the heat shield back on with this turbo....

Thanks

Edited by Dean_HR31

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

    • Robertson was a Canadian inventor, and it absolutely reigns supreme here. 95% of our screws are Roberston. It's literally the only option you can buy off store shelves. What would it have lost out too? I believe it's also very popular in the US.  My reference to imperial was pointed to both NPT and BSP. 
    • No. BSP lost to the cultural/technical imperialism of living next to Trumpistan. Face it, Robertson screws were better and still pretty much lost out to the yank stuff. The Europeans hate the Brits and they don't use NPT. NPT is just as "imperial" as BSP is, being based on those useless inch thingos. Just done differently. 
    • I live in Quebec. Our license plate slogan is "Je me souviens" Translated is "We will remember" as a reminder to when England conquered us and that we must never forget what they did. Long story short, BSP is unheard of here due to being an English design. I'm surprised our nazi anti english government office the OQLF hasn't kicked in my door yet just talking about it, yet alone imperial anything.       
    • Thanks for that! I did a quick Google search looked up some of hydaulic stores and didn't see it listed on the website, I'll give them a ring. Also found out later that I can buy 2 oem bleeder bolts for 10 bux and come with the washer which I might do so I don't waste the money it costs in petrol to find 2 washers (already did that lol). The old copper washes look in good nick, I drove it after taking it off and putting it back on and didn't see any  Part number here for reference if anyone needs: 14053-42L0A  
×
×
  • Create New...