Jump to content
SAU Community

A Couple Of Things

FJ20DR30
 Share

Recommended Posts

FJ20DR30 Community Regular

FJ20DR30

Posted
Posted

Hey Guys i need a little info and a turbo (maybe)

1st things first, does anyone have a good Vg30 turbo for sale? my is leaking oil into the front cover and wont pass its road worthy in vic, and or is it cheaper to rebuild? or does someone have something bigger that will bolt in place with no mods? im thinking about cost here really.. i need something cheap even if someone has a good vg30 nugget and i can use my housings..

Cheers for help with that.

and second can someone tell me more about fitting a gts25t gear box to an fj20et skyline? mainly do i need a different clutch and flywheel? iv heard speak of it being almost a direct fit if you remove some one or two of the engine/box locator studs???

Cheers for you help as always guys

Marc

Link to comment
https://www.sau.com.au/forums/topic/306134-a-couple-of-things/
Share on other sites
Factory 5 Mentor

Factory 5

Posted
Posted

I have a VG30 unit, but there is a chip/4x5mm piece missing on one of the compressor wheel blades.

you may be able to make a good one out of the two, but it will still need balancing,

a full rebuLid is around $500, depending on what you are after.

Hypergear is a workshop in Vic, they do replacements, rebuilds, and new units. the Tr43 is especially a good unit, may be too big fot a 2 litre though.

FJ20DR30 Community Regular

FJ20DR30

Posted
  • Author
Posted

Cheers guys..

i dont think the turbo with the chip will be any good as that still means a rebuild really?? tell me more about that second turbo? the upgaded one? my car is a 2.2 stroker with with forged pistons etc i think it should be ok to go bigger??....

as for the oil return from the tappet cover this might be the issue?? ill check that out! however the guys at nisco said to me they thought it was a turbo leak?

thanks

Factory 5 Mentor

Factory 5

Posted
Posted

The bottom line is cost.

The cheapest option is to rebuild what you have, it seems to be a fairly good match to the engine.

If you were looking at modifying your setup, there are some really good new turbos out there. Ghostrider has more info on this (he is building the FJ track only car)

Ghostrider Grand Master

Ghostrider

Posted
Posted

And I have an HR32 GTSt RB20DET box with a modified bellhousing, waiting in the wings for when the FJ box gives up the ghost under the strain of about 400+HP. And an HR31 GTSt box as another backup.

My sources tell me I wont be able to break it and it's heaps cheaper than either the Z32 masTers is using or your GTS25t box your talking about.

From what I'm told, you will have to use an FJ20 bellhousing and mate the new box to that.

As for turbo's, VG30's are available in good nick for about $300 on ebay, your just going to have to wait till one turns up.

Cheers, D

masTers Mentor

masTers

Posted
Posted

Hey Dennis, From experience the RB20 boxes give up around 350-400 rwhp. The vg box is around 1200, and the RB25 box from 1400-2000 depending what car it's from. You might be better of sellin the 2 and just buying a vg box? Seems to be a huge demand for rb20 boxes over here as they are pretty rare, and the cost of converting a 32 to an rb25 box is quite high for the average gtst owner

masTers Mentor

masTers

Posted
Posted

In a track only car that driven once or twice a month the R32 box should last a while, but if it's a daily or driven in spirit often I'd just go the VG off the bat. Interestingly enough a close friends HR31 box shat itself at 250rwhp.

Ghostrider Grand Master

Ghostrider

Posted
Posted
In a track only car that driven once or twice a month the R32 box should last a while, but if it's a daily or driven in spirit often I'd just go the VG off the bat. Interestingly enough a close friends HR31 box shat itself at 250rwhp.

The HR31 boxes only have the single ring synchros & therefore are not as strong as the HR32.

If one could be acquired the Nissan 280ZX box was as good as we can get too.

Cheers, D

  • 2 weeks later...
Ghostrider Grand Master

Ghostrider

Posted
Posted

Just bought a Z32 turbo box, so I guess I'll be right for gearboxes for some time.

I'm going to investigate putting the Z32 box behind the L28 in the PNV as I think the torque I'm expecting will destroy the stumpy L20 boxes far to easily.

Cheers, D

DR JOSH Community Regular

DR JOSH

Posted
Posted (edited)
and second can someone tell me more about fitting a gts25t gear box to an fj20et skyline? mainly do i need a different clutch and flywheel? iv heard speak of it being almost a direct fit if you remove some one or two of the engine/box locator studs???

Dead easy swap, elongate a couple holes in the bellhousing and it fits straight up, I have done a few for friends before. However the RB25 box has a larger output shaft so you will need a custom tailshaft. All though none of these went in R30's so I dont know where the shifter comes out in comparison to standard

Edited by DR JOSH
ydr030 Mentor

ydr030

Posted
Posted
Just bought a Z32 turbo box, so I guess I'll be right for gearboxes for some time.

I'm going to investigate putting the Z32 box behind the L28 in the PNV as I think the torque I'm expecting will destroy the stumpy L20 boxes far to easily.

Cheers, D

z32 box the goods, cheaper than 25 and stronger i swear i did a searcch on google and came across a guy in the states that does a kit to put a z32 behind a l type mota

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

    • EndZee
      R33 Gts/-t Abs Module Wiring Schematic (not Gt-r)

      By EndZee · Posted

      Brooooo Please send ABS control unit schematic Please! R33 gts25t ABS (Its two plug ecu, black and white) wire colors possible? [email protected]
    • GTSBoy
      Boost cut after swap(RB25DET NEO) R34

      By GTSBoy · Posted

      Don't even try to run it on the stock ECU if you're going to have the boost controller bring boost above ~10 psi. I've already told you that. If you use the Nistune ECU, you will need to CAREFULLY read the available documentation for Neo tuning, and read some threads on the Nistune forums, to discover the various things you have to do to prevent the ECU from going bananas when the boost is too high. The is a table associated with th boost sensor that must be modified to prevent it from shitting the bed. This is just one of the things that you will need to do to the tune in Nistune, because the Neo turbo ECU will be expecting to see a number of things (such as the TCS) that are not there, and you have to block the DTCs on those. It is totally not surprising to me that you are having the problems that you are, but the solutions to these problems have been known for >15 years. So just get it done.
    • dyl33
      VOLK RACING GTC CENTRE CAPS

      By dyl33 · Posted

      Centre caps $250
    • Kapr
      Boost cut after swap(RB25DET NEO) R34

      By Kapr · Posted

      Hi. Sry iam not a mechanic and iam not at the car atm so i dont know 100% but they told they measure those and even try to change those. AFM they have two. Coils are new a they have my old one too. Plugs too. ECU...we have 25 NEO stock and Nistune 25 NEO.   But i dont know if any one those could be the problem and why/if/what can cause this, Only thing they did not check is fuel...but that walbro 255 is new(like 1,5 years)... That fuel pressure gauge idk...but i let them know Any suggestions?   EDIT: how can they know if it is like you say he ECU pull power when it reaches a specific boost level that is too high? Tha car has boost controler
    • Duncan
      Boost cut after swap(RB25DET NEO) R34

      By Duncan · Posted

      Can you clarify what you mean by boost cut, do you mean it misfires both when under load (driving) and when stationary and out of gear? Or does the ECU pull power when it reaches a specific boost level that is too high (boost control issue)? Does it occur at idle with no throttle? When you say "the ECU is OK", what ECU is it and why do you think it is OK? Have you used the NEO ECU, and if so do you have a MAP sensor attached? Same for the AFM, why do you think it is OK? Do you have any way to put a fuel pressure gauge on it (even just a mechanical one between the fuel filter and fuel rail)?
×
×
  • Create New...