Jump to content
SAU Community

Help With My Engine Rebuild $$$$ Spent So Far

chrislesnar

By chrislesnar,
in Engines & Forced Induction

 Share

Recommended Posts

chrislesnar Explorer

chrislesnar

Posted
Posted

Hey guys, i have been modding my rb25 vl calais for the past 6 months and what turned into a manual conversion ended being a whole rebuild. Manual conversion recently got completed so i sent it to workshop for FMIC, 550cc injectors, greddy plenum, rb25 neo hi-flow turbo, z32 afm, power fc. Turned out the hunk of shit had low compression, 90 in cylinder 3 and i think 120 in cylinder 4 and 5.

I would like to do a rebuild but not a crazy rebuild that will cost me like 10g, i was thinking pistons, rods and make head gasket. I have a little over 4 grand to spend. What should i be looking to get for this.

Car is not a daily driver.

Supa Steve Enthusiast

Supa Steve

Posted
Posted (edited)

Mate just got my 30/26 in my BT1 built by Red R Racing, highly recommend.

They have done quite a few builds for guys on here, check out NYTSKY's and murrayis threads just to name a couple on the go at the moment. They also built Mercury Motorsport's 1071awhp R34, absolute weapon as well as their 9 second street GTR 'twoogle'.

email paul at redrracing@twoogle.com.au

Edited by Supa Steve
DVS JEZ Grand Master

DVS JEZ

Posted
Posted

does the car run? was it running before you took it to the workshop?

i would get a 2nd hand motor from a wreckers or on this forum, will work out heaps cheaper, and wont take long to do,

building a motor sounds all well and good, i have 4g i want pistons 1200 headgasket 300 all the little gaskets etc 100+ bearings 300, machine work 2500 and then the killer is labour, taking it in and out 400 ish, building the motor 1000.

adds up really quickly, trust me

GUN_METAL_GTR32 Grand Master

GUN_METAL_GTR32

Posted
Posted

SPOOLIMPORTS.COM.AU SELL GOOD REBUILD KITS.

AS DOES HORSEPOWER IN A BOX. IF U GO TO GOOGLE AND TYPE RB25 REBUILD KITS MANY PAGES WILL COME UP.

4K SHOULD JUST CUT IT...PROBS CLOSER TO 5K

N1GTR Grand Master

N1GTR

Posted
Posted

4k won't get you much.

Best to buy a motor from a wrecker (do a compression test first) and throw that in. You wont need the whole forged internals for a highflow rb25 turbo and 550cc injectors, sure forged is better, but it's costly.

Anyone who's actually built a motor in their car will agree.

DVS JEZ Grand Master

DVS JEZ

Posted
Posted
4k won't get you much.

Best to buy a motor from a wrecker (do a compression test first) and throw that in. You wont need the whole forged internals for a highflow rb25 turbo and 550cc injectors, sure forged is better, but it's costly.

Anyone who's actually built a motor in their car will agree.

AGREE 10000%

zebra Grand Master

zebra

Posted
Posted

Standard Internals ftw!

If the 25 is dead than it is the perfect excuse to drop a RB30 back in and slap the 25 head on, a RB30 with a set of cast pistons, new rings and bearings will easy last years and years with a highflow turbo on the side.

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

    • Nizzy_R34
      r34's love to squeal

      By Nizzy_R34 · Posted

      Ye good idea , would have never thought of something like that. Might aswell do it to every pulley and the balancer while I’m there 
    • GTSBoy
      r34's love to squeal

      By GTSBoy · Posted

      Use an LS1 or similar, via kit like Frenchy's. But.... It's probably not the alternator. It sounds like belt squeal, which would be because the pulleys are glazed. Rub every groove on the pulleys with 120 grit paper. Report back. Oh, and new belts afterwards too. The old new ones will be shitted up already.
    • Nizzy_R34
      r34's love to squeal

      By Nizzy_R34 · Posted

      Hello all I have 2 r34 sedans , one turbo one na, only recently aquired the na 34.  Man what is with these things.... My turbo 34 started sounding like a super charger, it was screaming at anything above 4000rpm , I took the alternator apart and replaced the front bearing which is the only one I think you can access and it did not fix the issue so presumably the bearing in the rear of the alternator is gone. ( diagnosed it was the alternator by taking off the aux belts one by one to figure out which pulley or bearing it was )  My friend gave me one he had lying around, Installed it , it did not squeal for maybe 500kms and now its started to squeal again briefly on startup  Recently got an na r34 and I replaced the timing belt, water pump + all the auxillirary belts. Runs amazing but it suddenly developed the same squeaking problem but significantly worse, Ive had my neighbour come down screaming at me because it was waking her up everytime I moved the car. It takes a good 2 minutes before it quietens down.  Im yet to diagnose where its coming from but im fairly sure its coming from the alternator aswell. My question isnt about how to fix it but rather where can you get a new alternator for an rb25 neo??? Ive searched everywhere but I havent been able to find a direct fit oem type replacement thats not genuine. All the automotive stores sell an oex one - BXA035 - which I picked up for cheap through a friend with staff discount , got it home only to find the connector is completelty different.... As far as im aware bxa035 is for rb20/30's and after a bit of figuring out the bxa035 has an ev14 type connector, which is tiny compared to the rb25 connector. I actually had an ev14 connector lying around which I was considering just replacing the bigger plug with to get the alternator working but the bxa035 is rated for 70amp vs the rb25 alternators are 90amp ( or so ive been told ? ) That paired along with the fact im about to install an amp + sub in the back and I have the stock sized small battery Im not sure itll do the job unless anyone has another opinion?  I know and have seen all the websites selling the ls1 alternator conversion kit but I am not going down that route, nor do I have the money to. Hopefully I can figure out how to get 2 brand new alternators for both cars. I would buy second hand which there seems to be many of but considering how common this seems to be im sure If I installed a second hand one it would start squealing in no time  Or even better if anyone knows how to fix the issue directly with the alternator itself... Any input appreciated Thank you     Link for bxa035 connector picture
    • Milkmun
      R33 suspension bushes replacement, what wears the most?

      By Milkmun · Posted

      As above, replace as many as you can afford. If anything, due to old age.
    • Dose Pipe Sutututu
      Oil Control In Rb's For Circuit Drag Or Drift

      By Dose Pipe Sutututu · Posted

      Can confirm previous shop that built my motor had no fking clue about oil control and caused my motor to shit itself after two track days. Current shop, Birrong Automotive, has managed to build me a motor, not to mention, has also let me tune it myself and it has yet to blow up after 7 track days. Great oiling success, yashimash.
×
×
  • Create New...