Jump to content
SAU Community

Recommended Posts

Bad luck Mona. Will be interested to know if it's oil or fuel related.

Hows the oil in the sump look? Lots of golden flecks? May have just been a rod let go too. How does that look on the gudgeon (piston) end where it snapped off?Looks beaten on the lower part of the rod.

My advice for a daily driver though is RB25 with the right work and the right turbo. 26 is too lazy low in the revs and if you have a grabby clutch you will get some spin trying to get the thing going in the wet with RWD.

All the best on the new one and please post whatever you want in my thread below.

  • Replies 240
  • Created
  • Last Reply

Top Posters In This Topic

boost - 1bar

well confirm if the fuel pump is still working on not.. as far as i know she still is!!

Geoff - will do!! and yeah... losts of scrap metal and water droplets :w00t: Couldn't see the piston end.. only had a top view... so can't tell you what it looks like!

it's not that complex moonie..

look for the user CUBES. in his signature, he has a PDF file which is like a DIY rb30det guide.

go from there..

if you are going to be paying someone to fix your motor for you, might as well get them to do the 30 for ya.

probably cost less.

considering bottom end costs about $100

if you want forged goodies, then both bottom ends will cost the same.

small mod to the vvt oil line

small mod to the engine mounds and your done.

so to speak

Moanie who is having a look at the engine? like Geoff said it seems like the piston failed at the gudgeon pin which is pretty unusual? And we can't really tell if the rod broke as well.....and presumably when it all let go the piston mashed into the valves and head at eleventy billion miles per hour.

Normally pinging will blow out a ringland and you will loose a heap of compression before a rod or pin fails, so I'm wondering if there was some other cause?

moooooona

you had what, 250rwkw before?

on the same boost, on a STOCK (read: stock pistons, rods, crank, gasket etc) RB30 bottom end, you would have that power or more, with loads more torque earlier in the rev range, and would be more reliable.

If your head is ok, it would be the cheapest option for you.

if the head is gonesky as well, then you need to look at it a few more ways.

stock second hand rb25det from wreckers?

stock rb30 bottom end, with stock rb26 head with new rings and bearings?

I've seen rb26 heads complete with manifold, injectors and so on for about $2K

Justinfox is selling a pair of 2530's for $1K (one has s blown seal or something but thye were both built by GCG using HKS cartridge or something)

All bolted together you'd have some spastic amounts of power which a little girl like you could ever want.. :)

Not sure what sort of $$$'s you are looking at spending here or can afford to spend but think it all through and do the math before making a choice.

Finally... if you ever need someone to point and laugh at your misfortune, you know where to find me. well for the next 3 weeks anyway

:)

hahahahaa... yes indeed i do!!

thanks for the ideas! i'll look into those options.. it really does come down to what i need to fix! but we'll see!! and i have no money at the moment!! jsut what i wanted to spend on rims!!! so i'll be going a cheapish option as well!! we shall see! :)

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



  • Latest Posts

    • After using a protractor for an actually accurate assessment of what is required,  and by NOT using my uncalibrated eyeball I worked out I need a 25° silicone bend from the TB ro the MAF, but, my choice was either a 30° or a 23° (23° is a weird spec), so I grabbed the 23° one from Raceworks I also grabbed 1mtr of 3" straight from Just Jap, I needed 350mm, but they only had 300mm, or 1mtr lengths....meh Also ordered a 1/2" hose bulkhead fitting from fleabay, this has a smoothish mushroom looking head (they are designed for below the water line of boats) that will fit inside the bend, the hose bit and threaded bit looks to long, but nothing that a hacksaw cannot fix if required, the hose will then just get jamed on the threaded bit up to the retaining nut Fingers crossed and the unsightly amount of hose clamps will be reduced down to 4 once all the parts arrive 
    • Oil change does not trigger code 21. Code 21 is for coilpacks primary side connection. You can try to clear the code with a battery disconnect, hold down the brake pedal to drain capacitors through the brake lights with the ignition on for 10-15 seconds before you reconnect the battery. I have seen R35 coil conversion permanently cause this code with no ill effects so it might be the resistance it wants to see isn't quite right on one or more coilpacks. Could be inside the ECU, could be the harness, could be a coil. You can test it all if you want or just ignore until the car actually starts misfiring.
    • I forgot you have a Nistune ECU. Use Nistune to do all the tests I mentioned instead of faffing with 30+ year old electrical connectors. You can read MAF volts off that too, there are reference values in the service manual to tell you roughly what it should be in different conditions.
    • No. I think it might be the AFM. Hence the use of the terms "swaptronics", which implies the use of swapping out electronics for the purpose of diagnosis. It's about the only way to prove that a small/niggling/whatever problem with an AFM or a CAS or similar is actually caused by that AFM/CAS/whatever. A known good item swapped in that still gives the same problem is likely to be caused somewhere else. They're all the same. Spraying AFMs with cleaner is an each way bet between cleaning it and f**king it.
    • Oh wow! This might actually work amazingly. Do you know the ratio of the diff? I was told the only thing you need to make sure of is if the front & rear diff ratios are the same. Ours is a 4.083 Thanks!
×
×
  • Create New...