Jump to content
SAU Community

Recommended Posts

What modifications would needed to be done for a RB26 conversion into an 180sx?

Also, how much money would it cost? I know that an RB26DETT r32 from JustJaps is $6500(give or take a few hundred), is there any other costs i should consider keeping in mind that i can do most of the minor adjustments myself.

Also, added to this engine conversion, is it possible to turn this 180sx RWD into a GTR AWD? Again, what would is needed to be done to make this happen?

thanks in advance.

Link to comment
https://www.sau.com.au/forums/topic/73034-180sx-rb26-conversion-question/
Share on other sites

Engine mounts, R33 GTSt gearbox (identical internally to R33 GT-R gearboxes less the front transfer case for AWD), radiator (stock 180SX radiators won't cope with an RB26), ECU, brake upgrade (to atleast R33 GTSt spec), new intercooler piping, new front pipes for exhaust made up, and getting the whole thing engineered + roadworthied.

No you can't turn the 180SX into AWD, well, not without truckloads of money

It's cheaper to dump an RB20 or RB25 (or some hybrid of those two) into the 180SX.

Also, why ditch the stock CA18 (89-91) and SR20 (91-97) engines anyway? They're great engines with heaps of potential (except the CA18's are getting a bit old now..)

I assume the halfcut would come with wiring, ecu, intercooler, radiator, but most don't come with brakes.

halfcut ($6500)

r32 crossmember ($150-250)

modified sump ($300-500)

r33 gtst gearbox ($1200-1500)

flywheel and clutch ($500-1000)

machine speedo drive sensor ($?)

custom tailshaft ($500)

brake upgrade ($600-2000)

intercooler piping ($400-800)

exhaust ($400-1000)

fuel pump ($200-400)

mating wiring looms ($350)

Labour ($0-3000)

So you're looking at about 11k bare minimum to 16k for good clutch, s/s exhaust and i/c piping and labour. Zoom did the conversion themselves and it cost them 11.5k.

Umm I've seen an RB25DET NEO for sale on this forum for 3000. Whole package apart from loom, which is like 350 max from wreckers.

I've seen an SR20DET including everything for 1400 on a forum. You could just buy an RB25DET and find someone who knows how to do the job and get mates rates. If not see the quote on RB25DET into 180SX. RB20 is not worth it.

<180sx purist>Why do this? The SR20DET is capable of assloads of power if you want, especially with the cost of a RB26 conversion. With some internal mods, you could pull over 500rwkw from it. See Theo's S15 drag car - does 9's with an S13 SR20DET. And I saw 2 180's at Autosalon doing 333rwkw, one with just a HKS 3030something turbo and FMIC (not that it would last every day at that boost). Besides, the added weight of the RB26 will wreck the balance of the car, and overall make it heavier (thus requiring more power). < /180sx purist>

But if you want to do it, do it. It will be interesting! :cheers:

platenewb']What modifications would needed to be done for a RB26 conversion into an 180sx?

Also, how much money would it cost? I know that an RB26DETT r32 from JustJaps is $6500(give or take a few hundred), is there any other costs i should consider keeping in mind that i can do most of the minor adjustments myself.

Also, added to this engine conversion, is it possible to turn this 180sx RWD into a GTR AWD? Again, what would is needed to be done to make this happen?

thanks in advance.

mate done the engine conversion and theres lots involved so prepare to dig deep

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


  • Similar Content

  • Latest Posts

    • An update regarding the registration with the DVLA I sent off the paperwork the day after I collected the car from the port, two weeks later it was all returned with a letter explaining they have rejected the application. This was because the cheque was £20 short for the road tax (I used a price list I found online). Nevermind it is what it is, it was sent back to them the following day with a new cheque. Fast forward another 2 weeks or so, I called them for an update to be told it had been rejected. Yesterday (16th September) I received the documents back along with another letter, this time it was because I didn't put an X in one box on the V750 (personalised number plate certificate), which declared that I had the rights to the personalised number plate. Why this wasn't mentioned in the first rejection letter, I don't know, but it could have saved this headache. The documents were sent back today, so fingers crossed third times a charm and it'll FINALLY be registered on the road just in time for the bad weather (woohoo!) To cheer myself up I lowered the front 25mm, was sick of seeing it sit like a monster truck. No idea how much clearance I'll have getting on and off the driveway, I'll worry about that when I can actually drive it
    • You're going to miss not worrying about rust in the strut towers like the Skyline shitboxes out there
    • A few little updates that weren't filmed due to not taking long to do or not interesting enough for their own video. My new K&N Air Filter arrived, I went with an RU-4180 which matched the dimensions of the universal cone filter the car originally had.  The battery had gone flat, while that was charging I tidied up the spaghetti wiring at the bulk head and down the sides of the engine Next job was to swap the stereo The Kenwood harness had the female ISO plugs cut off and the male ISO plugs cut off the adaptor loom and joined with bullet connectors. I ordered in a repair loom through work and re-did it all. New Kenwood unit installed (Android Auto, DAB, Bluetooth, Reverse Camera) The bonnet/hood gas struts have been poor since collecting the car. I couldn't find any suitable replacements locally so took a chance on a pair from AliExpress.  The originals don't use a retaining clip to secure the cup onto the ball fixture, would explain why I struggled for 10-15mins trying to pry off the cups. The ball fixtures unscrew using a 12mm spanner, new ones are the same size. Sadly no photo of them fitted, you're not missing much lol The dished Momo steering wheel got replaced with my Momo Tuner, turns out I ordered counter sunk bolts for the horn trim ring (like they normally are for the steering wheel) instead of allen cap (flat seat)  A terrible photo of a Quaife style gear shift knob I've had stashed in my tool box for many years after purchasing the incorrect thread size (I can see a pattern emerging with ordering incorrect parts...) Also threw in a cup holder and a (empty) Boss Coffee can, because why not  
    • GT-R clearly the better choice! The 300 is certainly not insaly fast but has a decent amount of poke. Does a nice little drift around the corners with a decent amount of throttle. It's VERY predictable in a slide too.  Feels so progressive! People probably presume there's a 25 year old driving it based on my behaviour this week! 🤣
    • Yeah Jap import. Fairlady Z then! I'm a bit the same.  They've been on my radar for a fair while but then just impulsively decided to buy one!  Was going to just buy an NA and add turbos to it later but decided to save the f'ing around and just buy the turbo version. 
×
×
  • Create New...