Jump to content
SAU Community

Recommended Posts

have any of you guys used the jjr turbos off just jap im looking at the 560hp are they hard to fit to a stock mainfold for a rb25?

they're shit, get a proper kkr

mate had a jjr480, it f**ked its seals after a month, and wasn't very responsive. sold and bought a kkr560, it spooled earlier, felt smoother, he's running twice the boost ('race actuator') and has had no problems.

From what i have seen they all come form the same place, the only differences i have seen is at one stage, some were only oil cooled

Personally, they all seem to have poor flow through the wastegate, which results in poor boost control, however this can be remedied with a die grinder. Also they seem laggy and unresponsive for the power that they produce compared to more expensive turbos. At the end of the day you get what you pay for.

I fitted a KKR 280 to a lancer, and had to pull the turbo off 4 times on the dyno to get it to work properly, and one of those times had to return it to the manufacturer due to an assembly fault.

Edited by Adriano
dunno about JJR turbos, but im using a KKR480 from otomoto and ive done close to 20,000kms on the turbo at 19psi daily and its got no shaft play at all, hope this helps.

what power do you make?

from things i have read you need a lot of boost to make power.

i also thought that jjr and kkr were the same just different badges.

Guest
This topic is now closed to further replies.


  • Similar Content

  • Latest Posts

    • Out here E90s are the cheapest way into a sporty-ish car because everyone knows just how expensive the repairs can get. 8-10k USD for an automatic 335i. 
    • Noted. Have noticed BMW are more 'high maintenance' for sure. They've attracted my attention as I think the used car prices seem reasonable vs other options, and the extra quality overall vs a commodore / camry / corolla or similar of the same vintage is appealing, especially the interior, and they are more on the sporty side whereas the others mentioned can be more cruising or economical A-to-B only.
    • Haha yeah I know, this is SAU after all, why are we talking about BMW's of all things!? I hear you on the 'don't have to worry about it' side of things. Having been fortunate enough to be have been able to buy a brand new motorbike or two...never really enjoyed them as much as I'd have liked as you worry so much about where you park it, will it get scratched, stolen, attempted theft, knocked over, etc...and yes dirty. Older less valuable bikes you can just go where you want and park it wherever and not really worry that much in comparison. And who cares if it gets dirty! Never owned a V8, and have had my eyes on VE / VF commodores for years but with their prices climbing so high, the M3 has come into focus more as prices are much closer than I've ever seen...is it a potential contender now?...of course need to factor in the S65 'maintenance' especially and like you said general M car 'tax'. One can dream anyway. But more on the reality front - did read the whole 330i thread as well and was a great read too, both threads enlightening as I've never even driven one of these cars! I do recall 330i didn't seem to have the same amount of issues for almost the same car (turbos and related differences notwithstanding)...perhaps down to getting it earlier in it's life so looked after better than the 335i? Perhaps so as your 130i has been good and quite similar, so finding a car that's been looked after well is the especially-crucial-BMW-first-step.
    • Nice. Dont worry about the time of not running. My current skyline hasn't run since I bought it. About 8 years ago.
    • It's also worth noting that I am heavily and unconditionally biased. I've had a lot of cars including some GTRs a fair while ago. I love my BMW's now a lot. They make no sense a lot of the time and the guys on here remind me regularly that I could get something else that does what I want better and cheaper. If you're going to take on an older BMW it's definitely a commitment. If you bail on it early you'll lose money and also the ability for it to put a smile on your face. Stick with it and it just gets better.  f**k I should get into advertising.  
×
×
  • Create New...