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Rb25de To Rb25det Engine Swap

mufro

By mufro,
in Engines & Forced Induction

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mufro Enthusiast

mufro

Posted
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hey guys, im thinking of doing an engine swap with my non turbo skyline. i looked in the search but most of it was bolting on turbos rather than engine swaps. i want to go with the rb25det. i was just wondering if anybody knew some infomation on this process about little things such as same/different engine mountings and what would need to be changed engine wise. im aware of the gearbox/clutch/diff factors but just differences of the engines not too sure. im a mechanic so i wil be doing it myself at work.

any information that can be given would be greatly appreciated.

thanks, michael

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LO_R33 Proficient

LO_R33

Posted
Posted

Waste of time unless you've completly done up the car and love it in other aspects, your looking at brake upgrades, auto electrician to re-wire your car, new ecu, as far as im aware engine will drop straight in though. Then you have 2 cut inside the engine bay for the intercooler piping, and at the end of it would probably cost around $4000 with brake upgrade, then $660 for engineering (the RTA said it HAD to be done) so there you go.

Dayne

benl1981 Grand Master

benl1981

Posted
Posted (edited)

Can get a series 1 R33 for around 13-15k..You might get 10k for yours..

Less hassle and you've got a car with better resale down the track. If you have done a conversion on yours people will always question the quality of it..It will never sell for as much as a stock turbo..

Edited by benl1981
mufro Enthusiast

mufro

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im not 2 fussed about what its going to have better resale value or cutting room for intercooler piping. this is a hobby for me and i have the ability to do it. im happy with the car i have and i know what is/isnt wrong with the car. i dont want to buy another persons problems. the reason why i want to swap the engine is that i have the ability to work on my car myself and i can learn off it. i know that money wise i will be better off selling and buying a turbo skyline but i want to do it for myself.

Calsonic_33 Apprentice

Calsonic_33

Posted
Posted
im not 2 fussed about what its going to have better resale value or cutting room for intercooler piping.  this is a hobby for me and i have the ability to do it.  im happy with the car i have and i know what is/isnt wrong with the car.  i dont want to buy another persons problems.  the reason why i want to swap the engine is that i have the ability to work on my car myself and i can learn off it.  i know that money wise i will be better off selling and buying a turbo skyline but i want to do it for myself.

just finsihed doing this conversion. not to expensive when u do it ur self. bolt on turbo to RB25DE i have herd good reports about but u cant run much over 10 psi. its a pretty straight forward conversion so give it ago and dont worry wat other ppl say bout wasting money, its all about learning. Wack in the DET and run 15 psi thru it. im sure ull have a smile on ya face.

meggala Grand Master

meggala

Posted
Posted (edited)

it has been done plenty of times its a straight forward conversion.

if you use the rb25de gear box its a bolt in situation wiring being the only hassle pay some one some cash and its sorted quick.

if you use the rb 25 det gearbox you need to get the tail shaft with the box.

is better to upgrade brakes and also swap the rear end for the r33 gtst you get lsd brakes etc much easier and quicker.

it might not be worth doing worth doing if you are converting from auto to manual add quite a bit more the auto's have adiffernt floor pan to the manuals.

the rb25de gear box should last on the stock turboed rb25det if treated gently. they are the same as the stock rb20 and sr20det ones.

meggala

Edited by meggala
mufro Enthusiast

mufro

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with insurance my excess will go up another 400 and i can have unlimited modifications. i still got my no claim aswell which makes it cheaper.

my car is manual..thank god :D and does hav lsd but wil prob swap it neway with gtst/gtr gearbox depending which way i go...just gota research it a bit more

BADR33 Collaborator

BADR33

Posted
Posted

yeah with a turbo de you will beat them off the line because you have higher compression. sure you cant run as much boost but what is so great about running high boost? running 6psi in the turbo is somthing like 10psi in the motor. not sure tho.

i would go with the rb25det gearbox. is almost as strong as a gtr and you dont need to modify it. to run rear wheel drive.

i would definatly have to say just turbo your car as it is now. nobody will know the difference really from a rb25det and a rb25de with turbo just by looking at it?

mufro Enthusiast

mufro

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yer, i know what your saying...but i dont care what ppl think or weather they can tell the difference between the engines. i have my car as a project car and i wana make it kinda unique...not so much of just bolting on a turbo...but to have it different from the rest...rb26. at the moment its just plans while saving money from work, but just wana sort out what i would need to do if i go through with it. if i dont end up going with a gtr engine i will swap with a gtst engine

BADR33 Collaborator

BADR33

Posted
Posted

yeah thats tru. thats why im building up a rb30de. that is almost unheard of in NZ cus everybody just builds rb30dets.. then i get the comment why dont you put a turbo on it.. so annoying.

i have a mate that is putting a rb26 in to his r32 gts using a 25t gearbox. my other mate just put a rb20det in to his gts and he is keeping it auto and with a single spinner diff.

if you want to be differnt you could super charge your motor? put an sr20det in? or do you want to keep the sound of the rb?

BADR33 Collaborator

BADR33

Posted
Posted

yeah thats tru. thats why im building up a rb30de. that is almost unheard of in NZ cus everybody just builds rb30dets.. then i get the comment why dont you put a turbo on it.. so annoying.

i have a mate that is putting a rb26 in to his r32 gts using a 25t gearbox. my other mate just put a rb20det in to his gts and he is keeping it auto and with a single spinner diff.

if you want to be differnt you could super charge your motor? put an sr20det in? or do you want to keep the sound of the rb?

mufro Enthusiast

mufro

Posted
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i was goign to supercharge it lol...i got all info n shit about it all planned haha...but yer, for a supercharger and then building it all 2 fit wil prob cost almost the same as an engine swap. worked it out that with a big supercharger im lookin about 5000 for it, then parts to fit it...i beter off gettin a rb26 or summin

BADR33 Collaborator

BADR33

Posted
Posted
i was goign to supercharge it lol...i got all info n shit about it all planned haha...but yer, for a supercharger and then building it all 2 fit wil prob cost almost the same as an engine swap.  worked it out that with a big supercharger im lookin about 5000 for it, then parts to fit it...i beter off gettin a rb26 or summin

nice dude. good luck with what ever you do decide to do. my mate is bugeting 10k for his rb26 in to his gts.

i had also seen a 4 or 5ltr v8 chev in to a r33 coupe. damn it lookd crazy.. but it had a huge assd bug catcher so you wouldnt have been able to see much. haha

but he said somthing like 20k had gone in to developing it

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