Jump to content
SAU Community

Recommended Posts

without listing the full car specs

its impossible to tell

it might be cheaper for a 2530.

depends on every mod that you have not listed

hey r31nismoid, say with the basic mods:

- boost controller

- 3" dump/front

- 3" hi flow cat

- 3" catback

- fmic

- safc

- fuel pump

what would you prefer from either turbos that would produce more power, hi flow or 2530?

what would pull better 1/4 mile times?

Link to comment
https://www.sau.com.au/forums/topic/114828-performance/#findComment-2114754
Share on other sites

the 2530 will peak and drop off more im pretty sure. the rb25 turbo upgrade thread has plently of hiflow and 2530 graphs to look at and compare against. the 2530 is probably cheaper but the hiflow will perform better i expect

Link to comment
https://www.sau.com.au/forums/topic/114828-performance/#findComment-2114995
Share on other sites

just for some information

i just bought a hiflow for 800

it did have a bit of play in it, and it is plain bearing turbo.

it cost me around 200 bucks for the rebalance, and 270 thrust bearing.

not sure what size wheels are in the turbo, but on my stock turbo i ran 12 psi and had 201rwkw.

with the hiflow i notice a significant difference in power, and spool time.

and when it winds up now, it sounds like a truck.

i ran a 14.089 with the stock turbo, but it was only my 4th time out there

and i didnt get my starts as good as i would like

i'm hoping to rund some low 13's next time i get out there and put the boost up to 15psi.

Link to comment
https://www.sau.com.au/forums/topic/114828-performance/#findComment-2115369
Share on other sites

GCG don't do two stages anymore I don't think. The stage two had compressor surge issues.

SAU NSW members get 10% discount at GCG.

I reckon for an R33 GTST then a 2530 would get down the quarter quicker. Just so much mid range punch.

Aquariz you should get a powerFC with your turbo upgrade if you want to take full advantage of it.

Link to comment
https://www.sau.com.au/forums/topic/114828-performance/#findComment-2115726
Share on other sites

GCG don't do two stages anymore I don't think. The stage two had compressor surge issues.

SAU NSW members get 10% discount at GCG.

I reckon for an R33 GTST then a 2530 would get down the quarter quicker. Just so much mid range punch.

Aquariz you should get a powerFC with your turbo upgrade if you want to take full advantage of it.

i thought the hi flow turbo is meant to be stronger?

i know 2530 kicks in quicker then hi flow because hi flow kicks in the same as stock

doesnt it also have a big mid range punch similar to the 2530?

does anyone have a dynograph of the rb25 stock turbo and a hi flow... would like to compare

yea abo bob i wish i could get a powerfc on my car... just hate the fact that i cant... auto transmission

i was wondering which from the 2 and a gtrs will have higher rwkw by 5000revs? anyone?

Edited by aquariuz6
Link to comment
https://www.sau.com.au/forums/topic/114828-performance/#findComment-2115834
Share on other sites

Look, it's not the worst turbo in the world and they didn't have surge issues with all of them, just a fair few. It might be ok but it might be the reason the current owner is selling it.

I get full boost of 0.9 bar at 3200rpm but I do notice that it spools very early, just takes a bit to get full boost.

I think 2530 to run 12's is a proven combo. For some reason I don't seem to notice decent times with highflow turbos. I'm running 13.4 atm and I wont bore you with my issues but the weird thing is that I run very good times on the roudy roundy tracks. Maybe I'm just no good at the short one.

But still there it is, I've got 255rwkw with a highflow but I can't get a 12 but it has been proven that 220-240 from a 2530 will get you one.

Watch this space though. I might get there yet with a little practice. Going to a test and tune day soon.

Link to comment
https://www.sau.com.au/forums/topic/114828-performance/#findComment-2126154
Share on other sites

But still there it is, I've got 255rwkw with a highflow but I can't get a 12 but it has been proven that 220-240 from a 2530 will get you one.

The 2530 Probably provides more average power and at lower revs hence the better times. Got a dyno sheet by any chance?

Link to comment
https://www.sau.com.au/forums/topic/114828-performance/#findComment-2126821
Share on other sites

  • 2 weeks later...
The 2530 Probably provides more average power and at lower revs hence the better times. Got a dyno sheet by any chance?

---------

My Hks 2535's failing after 75k kms due shaft play setting in and making wailing noise. Have ordered the

gt-rs and hope its a better choice than 2530kai. The gtrs is stronger from 3000rpm and has just slightly less response <3000rpm. From Hks web:

gtrs: graph_01.gif

2530kai: graph_02.gif

Edited by docang
Link to comment
https://www.sau.com.au/forums/topic/114828-performance/#findComment-2165548
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

    • I had 3 counts over the last couple of weeks once where i got stranded at a jdm paint yard booking in some work. 2nd time was moving the car into the drive way for the inspection and the 3rd was during the inspection for the co2 leak test. Fix: 1st, car off for a hour and half disconnected battery 10mins 4th try car started 2nd, 5th try started 3rd, countless time starting disconnected battery dude was under the hood listening to the starting sequence fuel pump ect.   
    • This. As for your options - I suggest remote mounting the Nissan sensor further away on a length of steel tube. That tube to have a loop in it to handle vibration, etc etc. You will need to either put a tee and a bleed fitting near the sensor, or crack the fitting at the sensor to bleed it full of oil when you first set it up, otherwise you won't get the line filled. But this is a small problem. Just needs enough access to get it done.
    • The time is always correct. Only the date is wrong. It currently thinks it is January 19. Tomorrow it will say it is January 20. The date and time are ( should be ! ) retrieved from the GPS navigation system.
    • Buy yourself a set of easy outs. See if they will get a good bite in and unthread it.   Very very lucky the whole sender didn't let go while on the track and cost you a motor!
    • Well GTSBoy, prepare yourself further. I did a track day with 1/2 a day prep on Friday, inpromptu. The good news is that I got home, and didn't drive the car into a wall. Everything seemed mostly okay. The car was even a little faster than it was last time. I also got to get some good datalog data too. I also noticed a tiny bit of knock which was (luckily?) recorded. All I know is the knock sensors got recalibrated.... and are notorious for false knock. So I don't know if they are too sensitive, not sensitive enough... or some other third option. But I reduced timing anyway. It wasn't every pull through the session either. Think along the lines of -1 degree of timing for say, three instances while at the top of 4th in a 20 minute all-hot-lap session. Unfortunately at the end of session 2... I noticed a little oil. I borrowed some jack stands and a jack and took a look under there, but as is often the case, messing around with it kinda half cleaned it up, it was not conclusive where it was coming from. I decided to give it another go and see how it was. The amount of oil was maybe one/two small drops. I did another 20 minute session and car went well, and I was just starting to get into it and not be terrified of driving on track. I pulled over and checked in the pits and saw this: This is where I called it, packed up and went home as I live ~20 min from the track with a VERY VERY CLOSE EYE on Oil Pressure on the way home. The volume wasn't much but you never know. I checked it today when I had my own space/tools/time to find out what was going on, wanted to clean it up, run the car and see if any of the fittings from around the oil filter were causing it. I have like.. 5 fittings there, so I suspected one was (hopefully?) the culprit. It became immediately apparent as soon as I looked around more closely. 795d266d-a034-4b8c-89c9-d83860f5d00a.mp4       This is the R34 GTT oil sender connected via an adapter to an oil cooler block I have installed which runs AN lines to my cooler (and back). There's also an oil temp sensor on top.  Just after that video, I attempted to unthread the sensor to see if it's loose/worn and it disintegrated in my hand. So yes. I am glad I noticed that oil because it would appear that complete and utter catastrophic engine failure was about 1 second of engine runtime away. I did try to drill the fitting out, and only succeeded in drilling the middle hole much larger and now there's a... smooth hole in there with what looks like a damn sleeve still incredibly tight in there. Not really sure how to proceed from here. My options: 1) Find someone who can remove the stuck fitting, and use a steel adapter so it won't fatigue? (Female BSPT for the R34 sender to 1/8NPT male - HARD to find). IF it isn't possible to remove - Buy a new block ($320) and have someone tap a new 1/8NPT in the top of it ($????) and hope the steel adapter works better. 2) Buy a new block and give up on the OEM pressure sender for the dash entirely, and use the supplied 1/8 NPT for the oil temp sender. Having the oil pressure read 0 in the dash with the warning lamp will give me a lot of anxiety driving around. I do have the actual GM sensor/sender working, but it needs OBD2 as a gauge. If I'm datalogging I don't actually have a readout of what the gauge is currently displaying. 3) Other? Find a new location for the OEM sender? Though I don't know of anywhere that will work. I also don't know if a steel adapter is actually functionally smart here. It's clearly leveraged itself through vibration of the motor and snapped in half. This doesn't seem like a setup a smart person would replicate given the weight of the OEM sender. Still pretty happy being lucky for once and seeing this at the absolute last moment before bye bye motor in a big way, even if an adapter is apparently 6 weeks+ delivery and I have no way to free the current stuck/potentially destroyed threads in the current oil block.
×
×
  • Create New...