Jump to content
SAU Community

Rb26dett Gt2860r-5 Help

johnnyt

By johnnyt,
in Engines & Forced Induction

 Share

Recommended Posts

Risking Grand Master

Risking

Posted
Posted

Im sceptical just as URAS is untill I can see correction figures.

Get them to run it up after the tune in shootout mode and make sure there are figures at the bottom like this one has.

GTRPowerRun1.jpg

Fairly easy to define a legit graph to a dodgy one then.

tacker Mentor

tacker

Posted
Posted (edited)

tell me what i need to ask for when he does it again on saturday, the HP figure means little to me but a safe AFR does.

Next time i will leave the arabic writting on the sheet so you can read that too :-)

yer i reckon i can ask him to do that thanks for the info

Edited by tacker
enzan Explorer

enzan

Posted
Posted

And another thing is with these turbos and no supporting mods you can expect bad compressor surge, as I've just found out! My GTR's barely drivable around town! So it looks like it's back into the garage for mine until I can afford the required extra's. :D

enzan Explorer

enzan

Posted
Posted

Well let me rephrase that.. just forewarning you... it's a possibility that you could end up with an undriveable car due to shuffle because of no supporting mods.

I have bugger all mods at this stage other than the usuals i.e exhaust, pods etc. No after market engine management (mines modified). One of my original turbo's shit itself and I plan to do quite a few mods later on and so wanted turbo's that will be up for it later on down the track hence the GT2860-5's (Never pulling them off again!! What a shit of a job!!!) And now have bad shuffle at cruise and low speeds.

700HP-GTR33 Mentor

700HP-GTR33

Posted
Posted
Well let me rephrase that.. just forewarning you... it's a possibility that you could end up with an undriveable car due to shuffle because of no supporting mods.

I have bugger all mods at this stage other than the usuals i.e exhaust, pods etc. No after market engine management (mines modified). One of my original turbo's shit itself and I plan to do quite a few mods later on and so wanted turbo's that will be up for it later on down the track hence the GT2860-5's (Never pulling them off again!! What a shit of a job!!!) And now have bad shuffle at cruise and low speeds.

Turbo's ,especially 2530(-5)or GTRS(-10) for a gtr need some mods.

1-Exhaust should be at least 3" right through...including CAT.(Air)

2-Fuel pump replaced to NISMO with regulator.(Fuel)

3-A tune is required with an after-market ECU.

You don't expect more power when the Engine is in a mild state of tune...do you?

How do you expect things work...get a Turbo('s) that is larger and assume the car will be better...wrong?

You made the right choice with the 2530's...you just have not been listening to what every-one is saying.

Get yourself an ECU and get a tune

johnnyt Rising Star

johnnyt

Posted
  • Author
Posted
Turbo's ,especially 2530(-5)or GTRS(-10) for a gtr need some mods.

1-Exhaust should be at least 3" right through...including CAT.(Air)

2-Fuel pump replaced to NISMO with regulator.(Fuel)

3-A tune is required with an after-market ECU.

You don't expect more power when the Engine is in a mild state of tune...do you?

How do you expect things work...get a Turbo('s) that is larger and assume the car will be better...wrong?

You made the right choice with the 2530's...you just have not been listening to what every-one is saying.

Get yourself an ECU and get a tune

hmmm i think i will wait till i get a powerfc and a pump and get the car tuned for low boost before i drive it then.

johnny

STATUS Grand Master

STATUS

Posted
Posted
Well let me rephrase that.. just forewarning you... it's a possibility that you could end up with an undriveable car due to shuffle because of no supporting mods.

I have bugger all mods at this stage other than the usuals i.e exhaust, pods etc. No after market engine management (mines modified). One of my original turbo's shit itself and I plan to do quite a few mods later on and so wanted turbo's that will be up for it later on down the track hence the GT2860-5's (Never pulling them off again!! What a shit of a job!!!) And now have bad shuffle at cruise and low speeds.

hmmm you have other issues, even though im no fan of 2860's i have fitted them to stockers b4 with no hassles in fact i just fitted larger T517Z's to my missus's RB26 powered silvia and it drives fine (no boost etc) of course it needs a tune but it would be safe as houses to go to shops and back....even as a daily commuter it would suffice until dyno time should present itself.. road tuning ruled out on this one....its a bit anti-social.

enzan Explorer

enzan

Posted
Posted
Turbo's ,especially 2530(-5)or GTRS(-10) for a gtr need some mods.

1-Exhaust should be at least 3" right through...including CAT.(Air)

2-Fuel pump replaced to NISMO with regulator.(Fuel)

3-A tune is required with an after-market ECU.

You don't expect more power when the Engine is in a mild state of tune...do you?

How do you expect things work...get a Turbo('s) that is larger and assume the car will be better...wrong?

You made the right choice with the 2530's...you just have not been listening to what every-one is saying.

Get yourself an ECU and get a tune

Yes i know and if you read my post properly it explains my reasons for putting these turbo's on without any supporting mods. JohnnyT originaly asked if his car would be ok with -5 turbo's and no supporting mods. And I'm simply saying that yes it will but he can't expect it to run properly..... like mine.

enzan Explorer

enzan

Posted
Posted
hmmm you have other issues, even though im no fan of 2860's i have fitted them to stockers b4 with no hassles in fact i just fitted larger T517Z's to my missus's RB26 powered silvia and it drives fine (no boost etc) of course it needs a tune but it would be safe as houses to go to shops and back....even as a daily commuter it would suffice until dyno time should present itself.. road tuning ruled out on this one....its a bit anti-social.

Hmm, possibly do have other issues, I didn't change anything other than a small amount of metal off the exhaust manifolds??

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • sunsetR33
      Blue/grey smoke after idle

      By sunsetR33 · Posted

      Can't you put the pistons to TDC and then do the valve seals? Or will the drop down too far to pull them back up?
    • sunsetR33
      Replacing turbo water line - any recommendations or advice?

      By sunsetR33 · Posted

      One thing I can tell you is, do it properly the first time. If you encounter unexpected problems just let the car sit for a week or two if you have to get some other parts or figure stuff out.  I'd have said go and use as many OEM parts as possible but since you want to change the turbo later on a custom kit is probably the better choice. Since I have no experience with RB25 just compare parts diagrams and images before buying a line kit and it should be easy to see if it has everything you need. Amayama has very good parts diagrams and part number lists, that is what I used a bunch to figure out what I might need. And don't forget to plan ahead and possibly renew other stuff that's easy to get to while you're in there doing the turbo lines. Happy wrenching
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      Update 4:   Hi all, good news. Engine is running and all the gaskets and seals seem to be working as intended. No leaks so far, even the JB Weld seems to hold. I flushed out the old coolant a few times and put in fresh coolant, not Nissan stuff, I decided to try the Ravenol Protect FL22, they claim it works for a wide variety of JDM cars and the opinions on it by some people were pretty good. And it has the nice poison green color! And man am I glad I bought a coolant system tester earlier this year, vacuum filling works wonders on this engine. I can definitely recommend this to anyone still doing it the old school way. All you need is compressed air supply. Will have to do a small test drive as soon as I can, I removed the gauge cluster again as the tacho needle was still bouncing around a bit but it was much better than before already.  I also found some cracks on all 4 tires inner and outer sidewalls. Apparently these tires should 't be parked on for extended periods or be kept under 0 degrees during storage, which I did not know. Clearly the previous owner didn't look into those details either, he probably bought them just cause they are cool semi-slicks. I'm just wondering how tf I am supposed to reach 30-80 degree tire temperatures on the public road consistenly, these tires were never going to work for my use case. I'll probably order Continental SportContact7 ones as these are the best allround summer tire available right now and I don't think I'll need anything crazier for now. Do let me know if you have experience with various tires and which ones you recommend.
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      You have no idea how many goddamn boxes I received these past three months haha Most have been put to use by now though, luckily
    • sunsetR33
      Unpeeling the Orange

      By sunsetR33 · Posted

      Not going to pretend I didn't do a bit of junky work this time around, but mostly due to the fact that some things I am not willing to spend days fixing right now, like wiring. I try to do most things properly the first time around.
×
×
  • Create New...