Jump to content
SAU Community

Modifying 2002 250 Gt

beercat
 Share

Recommended Posts

beercat Apprentice

beercat

Posted
Posted

Hey there, I've been thinking of modifying my Skyline 250 GT. Does it share the same head design as the VQ35DE's?

Also, does it share the same internals as the Stagea's VQ25DET? Thinking of doing a low pressure turbo. Unfortunately

can't find any Stagea halfcuts here in Malaysia; unless I can get the bits I need shipped from Australia. And if it's a straight

forward ECU swap etc (one can dream).

Link to comment
https://www.sau.com.au/forums/topic/363203-modifying-2002-250-gt/
Share on other sites
Deep Dish V35 Experienced

Deep Dish V35

Posted
Posted

Have to say I was very disappointed to find out that they made Stageas with the same engines in turbo form... why not the skyline? This is obviously why they will never be a desired import...

I'd do the stagea engine transplant... AND swap all the front panels too

  • 2 weeks later...
beercat Apprentice

beercat

Posted
  • Author
Posted

Custom fabbed a pair of 2.5" decat pipes for the 250. Due to the increased airflow can now clearly hear the empty resonator and muffler rasping tinnily. BTW 350Z cat back exhausts aren't feasible, the fuel tank is at the rear below the boot and 350Z style mufflers will not be able to fit; it's possible to fit two N1 style straight-through mufflers on each side but it'll be way too loud for what I'm aiming for.

Also, the resonator (midbox) is ridiculously huge. And flat. Curves around the prop shaft for a good 3.5 feet. I'll have to repack it; any replacement resonators, even box types, would make the exhaust boomy :/

beercat Apprentice

beercat

Posted
  • Author
Posted (edited)

Well not familiar with tuning direct injection...can e-Manage handle it? :P If yes then I'd be very interested in the manifolds; a turbo of similar spec can be sourced hehehehhe

edit: on second thought, I can just fabricate a manifold. Labor cost is cheap here in Malaysia. It's the direct-injection that's a pain though.

Edited by beercat
scotty nm35 Grand Master

scotty nm35

Posted
Posted

Yeh, not sure on the direct injection.

You wont be able to source a turbo anything like the Stagea one, lots of fabrication with bugger all room. Better to go stock unless you can get the work done for nothing.

beercat Apprentice

beercat

Posted
  • Author
Posted (edited)

Yeah not looking at a dual muffler setup.

Bleh. Put in a bottle of Redline SI-1 Complete Fuel System Cleaner and it started to run super rich. Idle started to get funny, after a few minutes at idle, RPM rises to the 1.5-2k range and it's effectively in limp mode where full throttle will get you to 2-2.3k rpm. ECU is throwing a P0175, Fuel System Rich (Bank 2). Restarting the engine gets rid of this and it's ok to drive around, just not idle for long. The exhaust gases at idle are tear inducing, and almost smells like paint thinners.

*Oh, and under load it spews out lots of white smoke. It's not eating oil though so I'm hoping it's just unspent fuel.

I'm hoping it's because the additive is cleaning/causing havoc and in a tank or two will clear out. Anyone else have this problem before?

Edited by beercat

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

    • Kapr
      Possible swap on R34 RB20DE NEO?

      By Kapr · Posted

      Hi. A little bit of an update. It maybe(hope not) looks like i would need a new tranny(it would be "maybe" a cheaper or better option anyway) So i need some info. I know i need a different propshaft(i can make custom one) LSD is not a problem cuz the engine will be still(for now) N/A RB20. So if i buy RB25DET NEO tranny...is there something else i need? I read something about push/pull type but i do not know if i need to "change" something or i can just plug n play onto my engine a go? Thanks for the advice  
    • OakvilleGTR
      Turn signal wiring question

      By OakvilleGTR · Posted

      Good morning all, Bit of a random question but figured I’d finally throw it out after wondering for a long while. Before I start, I'm hoping to do this purely out of personal preference. I think it would look better at night, and don't mind at all spending a few hours and dollars to get it done. I've copied this from a non-Skyline specific forum, so I apologize for the explanation of our headlight switch setup that we all know. Here we go: Zero lights (switch off) Parking lights (switch position 1) being a rectangular marker on the outside of the housing, my low beam being the projector in the centre (position 2), and a high beam triggered by my turn signal stalk. Most North American cars I’ve owned of this era have power to the amber corner (turning indicator) light as part of the first switch (parking lights). I’d love to have these amber corners receive power when the headlights and parking lights are on (headlight switch), yet still blink when using the turn signal which is of course a separate switch. Hopefully I’ve explained my question correctly. Is anyone aware of a way in which I might be able to achieve this? Thanks in advance
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      My heads are cathedral port! It's likely possible, but I don't want to add any extra moving parts (I know they don't move) between the heads, manifolds, etc. It will also affect how injectors/fuel rails etc sit and I don't really know if it would change how the FAST manifold goes/sits/fits. I have the LS6 steam pipes already as I have a very late LS1 block so it should be fine. I couldn't find anyone who had ever actually used one for this purpose, it seems 100% of people grind the water pump. The thermal spacers are 12mm and are half way to the cost of the newer water pump anyhow... so if it comes to that I suppose I'd rather buy a new pump. The bearing in the pump I do have is a little.. clunky, but it hasn't done that much time and I never noticed it when the car was together in the past few years, so..
    • sonicii
      Lower A arm Skyline v35

      By sonicii · Posted

      The bushing has failed, not all that uncommon for a car of this age.  Any mechanic should be able to push in a new bushing for you, or you can probably buy the entire lower control arm, complete with bushes.
    • The Bogan
      Mistakes were made, my R34 Story

      By The Bogan · Posted

      Could you not use "thermal" spacers to give the clearance, like the ones I used between the blower and head? That raised the manifold height by around 10-15mm Albeit the ones I used were for cathedral ports, but I assume they have similar for rectangular ports????
×
×
  • Create New...