Jump to content
SAU Community

Engine Swap From Rb25de To A Rb26dett

Skyline_Lover
 Share

Recommended Posts

Skyline_Lover Contributor

Skyline_Lover

Posted
Posted

ok....well i am looking 2 get an engine swap in my R34...and i was wondering if anything on the body would need to be changed if i was swapping a RB25DE to a RB26DETT...i know it is .1 litre bigger...but is there anything i would need to change to have a GT-R engine in my R34? I was thinking if something needed to be changed then it would most likely change everything like i would have 2 get a GT-R Hood and body kit...but im not sure...so plz help me with this...and if something needs to be changed then tell me everything that needs 2 be changed like if i needed a GT-R hood i would also need a GT-R body kit...Thanx 4 the help :)

Hesh Collaborator

Hesh

Posted
Posted

youd need to change very little. certainly not the body kit , as that has no bearing onthe engine. the rb26 doesnt sit any higher than the rb25, though if you wanted top mount turbos you may have to lok at bonet clearance. (more of an issue with rb30s as the block is higher.

youll need a new ecu, remap and perhaps it wopuld be wise to look at uprated drive shafts and certainly brakes and suspension to handle the ike from 200 ish bhp to 300plus.

lot of work mate ...but can be done

Skyline_Lover Contributor

Skyline_Lover

Posted
  • Author
Posted
youd need to change very little. certainly not the body kit , as that has no bearing onthe engine. the rb26 doesnt sit any higher than the rb25, though if you wanted top mount turbos you may have to lok at bonet clearance. (more of an issue with rb30s as the block is higher.

youll need a new ecu, remap and perhaps it wopuld be wise to look at uprated drive shafts and certainly brakes and suspension to handle the ike from 200 ish bhp to 300plus.

lot of work mate ...but can be done

thanx mate!

GTS4WD Grand Master

GTS4WD

Posted
Posted (edited)

What you need:

RB26DETT

RB25DET box - NA boxes will not be able to hold that power and RB20DET boxes will strip gears and do in bearings at that level too.

RB26DETT loom - You will have re-wire the whole ECU system

RB26DETT ECU - Self explanatory

GTR or Higher Fuel Pump - NA fuel pumps will simply not supply enough fuel

Fuel Pressure regulator - You will need to replace this for the fuel system

RWD sump - I know Rb 25 AWD and RWD sumps are direct fit but I dont know if a 25 sump will fit a 26

Front pipe/Dump pipe will need to be changed too

Then there is everything you really SHOULD change.. but not absolutely essential for the engine to work

Diff - Large power and open diffs do not go well together

Brakes - I like knowing I can stop.. especially as I am assuming your putting in a 26 to go faster.. going faster means you will need more braking power

Exhaust - A stock GTR exhaust is the LEAST you should put on.. You dont want to have all this power and not get the most out of it

Front Mount Intercooler - Stock ones are fine but you will have to source one as the RB26 engines dont usually come with them and you will need it to complete the intake piping

You may need to chop/change the front bar to allow for a FMIC

A boost gauge is a good idea too

And a stock bonnet will be fine

Got a Lazy 10K?

Edited by GTS4WD
GTS4WD Grand Master

GTS4WD

Posted
Posted

Funny that.. guess what I found in the for sale section?

http://www.skylinesaustralia.com/forums/Rw...um-t215977.html

You could always PM him an ask here he got it from if you dont but it off him

Skyline_Lover Contributor

Skyline_Lover

Posted
  • Author
Posted
Funny that.. guess what I found in the for sale section?

http://www.skylinesaustralia.com/forums/Rw...um-t215977.html

You could always PM him an ask here he got it from if you dont but it off him

Thanx alot man...

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

    • sunsetR33
      ugently need expert / experienced opinion

      By sunsetR33 · Posted

      I'm hoping I just don't have to do an engine rebuild NOW. Doesn't mean I won't do it at some point. I think a plus point is that the car presumably ran on or close to stock power nearly all it's life so far. Only the Owner I bought it from actually increased power with a standalone ECU and blew the OEM turbos. And after it got thee 2860s it wasn't driven an awful lot either.   That is what I meant. With the twins coming on so late (4500-5000rpm) I hope the rods won't want to exit the block prematurely. And it still being a 26 means the torque curve isn't gonna hike up all that much.   It didn't blow up on the dyno when they tuned it to 500ish crank. So I suppose it'll be okay for now. They did put a Tomei head gasket on first though which did not seal at all, and they redid it with a Cometic one. Which I hope won't be my water leak.   Mainly anything oil. So far all it has is the N1 pump, oil restrictor and a filter relocation kit with a cooler.
    • GTSBoy
      Comfortable replacement seats for R32 GTR

      By GTSBoy · Posted

      15000? ish? Something like that anyway. It wasn;t so much a wear as a tear that then spread. Might have lasted a lot longer if not bothered by just one incident, whatever it was. I took a punt. They are really comfortable and do a good job of holding. My daughter HATED it when I first put them in, and probably still does now. She has sensory issues and hates the way they are all up your business. I'm 197cm and 95kg. Not fat or particularly wide, and the XL size seat is the rigth fit. If I was any fatter it would start to get too snug. Any skinnier and you'd possibly want the smaller width.
    • r32-25t
      Comfortable replacement seats for R32 GTR

      By r32-25t · Posted

      Mrs rs focus came factory with recaro cs  sportsters in it and they a pain in the ass to get in and out of with the really high bolsters, once you were in them they were one of the most comfortable seats I have ever sat in
    • GTSBoy
      Shifting questions

      By GTSBoy · Posted

      The NA 2.5 has very little torque. You won't feel much. Those trannies are also a million years old now and it could well be f**ked. First generation electronically controlled autos will often refuse to kick down, ete, etc, depending on what's wrong with them.
    • GTSBoy
      ugently need expert / experienced opinion

      By GTSBoy · Posted

      Yes, but no but yes but no. Those "it's fine up to 500HP" rules and everything else like it were all determined back when the cars were 10 years old. As they are now 30 years old.....what do you reckon the chances of something shitting the bed are? I'd say they are much higher now than they used to be. You might be lucky. You might be unlucky. Spin the wheel and find out. Yeah, nah. It's actually exactly the opposite. Making boost early and having heaps of torque able to be generated right in the middle of the rev range will do more to damage an engine than having to rev it high to make the power. Think about the load on the conrods, bearings, etc, to make 400HP at 4000 rpm, vs 400 HP at 6500 rpm. So someone has already "let the Nissan out" which is how we describe the increased chance of a fiddled with engine to have had something done wrongly. Many more engines that have been opened die than stock ones do - even if you into consideration how they are treated wrt power levels and the like. Again, not saying that yours will definitely have been put back together by a moron. But the possibility does exist. It's still a lottery. Spin the wheel. What weakspots?
×
×
  • Create New...