Dean_HR31 Posted April 14, 2008 Share Posted April 14, 2008 (edited) 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 April 14, 2008 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 More sharing options...
R31Nismoid Posted April 14, 2008 Share Posted April 14, 2008 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 Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3793700 Share on other sites More sharing options...
Dean_HR31 Posted April 14, 2008 Author Share Posted April 14, 2008 (edited) 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 April 14, 2008 by Dean_HR31 Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3793763 Share on other sites More sharing options...
666DAN Posted April 14, 2008 Share Posted April 14, 2008 2535 ftw! Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3793773 Share on other sites More sharing options...
swanny180 Posted April 14, 2008 Share Posted April 14, 2008 Yes they do Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3793778 Share on other sites More sharing options...
R31Nismoid Posted April 14, 2008 Share Posted April 14, 2008 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 Or even a GT-RS or one of the other good options on the market Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3793868 Share on other sites More sharing options...
Dean_HR31 Posted April 14, 2008 Author Share Posted April 14, 2008 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... Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3793918 Share on other sites More sharing options...
R31Nismoid Posted April 14, 2008 Share Posted April 14, 2008 No turbo is less reliable than the other really. They all use the same cartridge - Garrett ones GCG hi-flows i know have been running for 2-3 years now on a few cars, no issues. Same as HKS items. Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3793948 Share on other sites More sharing options...
R338OY Posted April 14, 2008 Share Posted April 14, 2008 I think R31 Nismoid has provided the answers you seek. I'd be rethinking the turbo setup, and refund policies at HKS Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3793979 Share on other sites More sharing options...
OZ_Pomy Posted April 14, 2008 Share Posted April 14, 2008 (edited) 2535 ftw! +1 Love mine very responsive easily achieves the 240rwkw target your after and yes they can be hard to find. Edited April 14, 2008 by iLEC Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3795212 Share on other sites More sharing options...
NYTSKY Posted April 14, 2008 Share Posted April 14, 2008 I agree with Nismoid.The GCG or similar would be the best option.I had a BB highflow in my car,ran 250rwkw all day on 16psi.Looks identical to a stock turbo(0P6 housing). Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3795223 Share on other sites More sharing options...
Dean_HR31 Posted April 15, 2008 Author Share Posted April 15, 2008 (edited) 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 April 15, 2008 by Dean_HR31 Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3795906 Share on other sites More sharing options...
limpus Posted April 15, 2008 Share Posted April 15, 2008 Yes...they are all similar to the stock turbo size...and heat shield will go back on... Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3796425 Share on other sites More sharing options...
ix9 Posted April 16, 2008 Share Posted April 16, 2008 Another HKS 2535 thumbs up here Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3799099 Share on other sites More sharing options...
Dean_HR31 Posted April 16, 2008 Author Share Posted April 16, 2008 Is the 2540 really that bad??? To the extent where i should now sell it to find something else?? How laggy is it?? They a make a bit more power than the 25-35 correct? Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3800419 Share on other sites More sharing options...
limpus Posted April 16, 2008 Share Posted April 16, 2008 Just whack it on...and whack some decent boost (18psi onwards) into it...and it will still make you smile...guaranteed... Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3800838 Share on other sites More sharing options...
R31Nismoid Posted April 17, 2008 Share Posted April 17, 2008 Until ya get in a car with a 2350 or a 2535 and then you'll be sad panda Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3801531 Share on other sites More sharing options...
joeyjoejoejuniorshabadoo Posted April 18, 2008 Share Posted April 18, 2008 if you search enough there seem to be a few people that have overcome the dreaded 2540 lag... its all in the mods... go to race pace Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3806929 Share on other sites More sharing options...
Dean_HR31 Posted April 18, 2008 Author Share Posted April 18, 2008 Can u show me a few links? What mods are u referring to?? I havnt found any threads regarding that... Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3806966 Share on other sites More sharing options...
joeyjoejoejuniorshabadoo Posted April 19, 2008 Share Posted April 19, 2008 dont remember exactly... but when i was offered one at a good price i searched heaps and found a few people getting 3k ish full boost in a loaded gear Link to comment https://www.sau.com.au/forums/topic/214831-bought-a-hks-25-40-for-my-r33/#findComment-3808403 Share on other sites More sharing options...
Recommended Posts
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 accountSign in
Already have an account? Sign in here.
Sign In Now