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Engine Swap From Rb25de To A Rb26dett

Skyline_Lover
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Skyline_Lover Contributor

Skyline_Lover

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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

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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

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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...

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