Jump to content
SAU Community

Recommended Posts

Hi guys,

I have a '97 R33 GTR with HKS GT2530 turbos. Earlier tonight I was having some fun driving it when I noticed that it started to feel a little "sluggish". I then noticed that the peak boost it had achieved in my last run was only 1.2 bar instead of the 1.5 bar I was getting earlier. I quickly pulled the car over and smoke was absolutely pouring out the exhaust. It was difficult to see in the dark but it looked like the smoke was white in colour. I lifted the bonnet could hear water or fluid bubbling in the radiator (don't know if that means anything but I haven't noticed that before). I also noticed a couple of strange sounds when I noticed the car was sluggish but I can't remember what they sounded like but only remember hearing something out of the usual. The car still runs but is now is running very badly so I just got it towed.

Does this sound like a blown turbo? If so can it be repaired or what's involved getting it fixed. If it doesn't sound like a turbo then any ideas on what has happened.

As I'm sure you can tell, I have very limited mechanical knowledge but am very concerned. I hope someone can help.

Thanks.

Link to comment
https://www.sau.com.au/forums/topic/48359-help-needed/
Share on other sites

take the oil cap off and see if there is any blow by coming out , if it is you probably done a piston ( are they stock ?) 1.5 bar a bit on the high side for stock pistons .

if there is no blow by then you may have blown a turbo ( they are a nightmare to pull off with engine in the car ) did you notice it slugish after you gave it high rpm like close to cut out ? without hearing the engine is very hard to guees what is wrong with it but if i had to guess i'd say you done a piston ( for sure if you stockers ) what kind of computer do you have ? what other mods ? how much power do you make ?

Link to comment
https://www.sau.com.au/forums/topic/48359-help-needed/#findComment-974485
Share on other sites

yea sorry to hear , i saw your other post after i posted here .

wrx's are different though they love boost as they have lower compression than rb 26's , i have a rex too . did you have sti or normal rex ? sti's have forgies .

is the engine out ? or just a compression test and no compression on no 6 ?

do you have a power fc ? you see it could have been pinging , anyway you'll see the detonetion marks on the top of the pistons once you have them out .

are you going to rebuild ? dont use a second hand engine , it may or may not be good and then you will have to do a rebuild anyway so do it right in the first place .

if you need any advice just ask or you can pm if you like , been there done that .

good luck with it but you are up for big $.

what kind of power did you make with the 2530's ?

i have n1's in mine did 1/4 at wsid in11.7 @120mph

Link to comment
https://www.sau.com.au/forums/topic/48359-help-needed/#findComment-974677
Share on other sites

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

    • @joshuaho96 Hmm considering the drama you've seen/experienced, have you looked into getting a built complete long motor shipped from Australia?  Considering the AUD is basically monopoly money when compared to the USD, at a glance this seems like a good option?
    • Bloody Skylines, they put you through the bloody wringer! Stick at it! Stunning drag strip BTW! Where is it? Can see part of the name on the slip and probably should just Google it!
    • I mean the other day I had to walk someone through diagnosing why their timing belt was walking off the cam gears. At least one of the issues was a bent tensioner stud. Local mechanics have found runout on the CAS mechanism causing weird failures. I'm also no saint here I've documented some of the things I've had to learn the hard way. Something I discovered recently is that my CA emissions catalytic converters weren't even welded correctly to align the downpipe to the main cat and they tossed the support bracket that goes from the transfer case to the downpipe to support everything there. I spend a lot of time chasing down these decidedly unsexy problems and the net effect is it feels like I never actually get to the original objective (flex fuel, VCAM, oil control, cooling, etc).
    • At times with how you make everything sound, all I imagine Americans doing when they see a gtr is standing there looking at it and bashing it with a gun like how a caveman would with a club and hoping it fixes itself 
    • I think this is just a product of how the US market works for this stuff. Shops are expensive and there's no real way of knowing what kind of results you're going to get, people don't really have the institutional knowledge. I have heard too much at this point to really put faith in anybody "full service" except maybe DSport and they aren't really a full service kind of shop. If you go to the right place I have no doubt they'll get it right for you. Some locals have set it up right but the cost really is nuts and even now they're still fighting issues. And you know I'm a crazy person who thinks things like twin scroll, relatively short low-mount cast headers, PCV recirc to intake, recirculating BOV, right-sized for ~400 whp, MAF load, validating all of that to a standard comparable to OEM test programs, etc are relevant. For what it's worth, multiple local owners at this point have been stuck in a perpetual cycle of blowing a motor -> getting someone to rebuild it -> some missed detail causes the bearings to wipe and spin just outside of break-in mileage or drop valves or some other catastrophe -> cycle repeats. I usually only find out about this because I'm perpetually helping random friends with diagnosing car troubles, Skyline or otherwise. The single turbo stuff if I'm honest is mostly secondary, it just doesn't seem to achieve the numbers in the ~2000-3000 rpm region that I would expect given the results I've seen here or in Motive's videos. I don't really know what we're missing here in the US to be causing this. Lots of people like to emphasize the necessity of finishing the project first and foremost, but I'm not made of money and I can't afford to be trashing a 15k+ USD engine build with any regularity. Or spending my relatively limited garage time these days unable to triangulate problems because too much was changed all at once. Also, even if it isn't a catastrophic failure I would consider spending the cost of single turbo conversion with nothing to show for it to be pretty bad. 
×
×
  • Create New...