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Rb25de

dori34

By dori34,
in Engines & Forced Induction

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skyla Community Regular

skyla

Posted
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factory stats at the flywheel for the different models are below, it's hard to gauge power at the wheels, cause every dyno will read sligthly different

R32 RB25DE 132kw

R33 RB25DE non type-s 140kw

R33 RB25DE type-s 147kw

R43 RB25DE 147kw

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dondesoto Community Regular

dondesoto

Posted
Posted
factory stats at the flywheel for the different models are below, it's hard to gauge power at the wheels, cause every dyno will read sligthly different

R32  RB25DE 132kw

R33  RB25DE non type-s   140kw  

R33  RB25DE type-s  147kw

R43  RB25DE 147kw

i remember hi performance imports magazine dynoed a rb25de , they eventually got it up to around 120 kw@ rw , mainly by playing with the ignition timing ( advanced few degrees ) improving air inlet and some other tricks . must find that magazine and be a bit more specific .

by the way whats the difference between non type s and type s ?

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Eug Grand Master

Eug

Posted
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i remember hi performance imports magazine dynoed a rb25de , they eventually got it up to around 120 kw@ rw , mainly by playing with the ignition timing ( advanced few degrees ) improving air inlet and some other tricks . must find that magazine and be a bit more specific .

by the way whats the difference between non type s and type s ?

i read that article too... it was on an series 1 silver sedan.

they advanced timing

fcd

removed standard airbox lid

added a cardboard snorkel

type s has been quoted to have an extra 7kw (and has an exhaust flap on the stock system)

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TokyoTaxi Veteran

TokyoTaxi

Posted
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What sort of power can be achieved with an RB25DE ? Has anyone worked one ?

Have been wanting to change mine to an N/A since I saw a HCR32 modified to fit in an RB25DE ( in the turbo body with brakes etc. ) Yes the car WAS a turbo but had an N/A installed. The RB25DE was very worked but I don't speak Jap so I didn't find out the power output.

I know you think I'm :crazy: but if you could have heard this car go you would cream yourself ( snorting, farting, barking and growling sounds that no turbo car could EVER make !!! ) :wave:

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TokyoTaxi Veteran

TokyoTaxi

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:werd:

This car I saw in Osaka had open alloy trumpets and you could look down them and SEE the fuel injector spraying !!! It also had extractors into a 2 3/4" system with one muffler, and then dumped out the side. The compression of the engine was so high that the air coming out the exhaust nearly un-tied your shoe laces !! :wave:

I just wish I had done the swap when I blew up my RB20DET. But the only thing that stopped me was the knowledge that I was going to have +200 rwkw. I now have the power but just wish I had the old school noise :kewl:

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TokyoTaxi Veteran

TokyoTaxi

Posted
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So by that rational, it's possible to get good 150+rwkw with cams, injectors, head work etc. ( I suppose with REAL money spent, the number's could be higher ). But I guess it's more about the torque figure and where it all happens in the rev range.

I better start saving real hard :huh:

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  • 8 months later...
dori34 Grand Master

dori34

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This car I saw in Osaka had open alloy trumpets and you could look down them and SEE the fuel injector spraying

by that you mean it had their own individual tb with bell mouths added to it. they make the engine scream and rev really loud haha.

damn its been awhile and i should've kept track of this thread. i totally forgot about it :worship:

R32 RB25DE 132kw

i thought R32's only came in RB20 dude?

i rekon the rb25de would be a good engine to work with. work it off its nuts then slap on a turbo man it would be a monster.

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cogs Experienced

cogs

Posted
Posted
by that you mean it had their own individual tb with bell mouths added to it. they make the engine scream and rev really loud haha.

damn its been awhile and i should've kept track of this thread. i totally forgot about it :devil:

i thought R32's only came in RB20 dude?

i rekon the rb25de would be a good engine to work with. work it off its nuts then slap on a turbo man it would be a monster.

Yes some R32s came out with a non-turbo RB25DE engine (although less powerful than the R33 version).

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  • 2 weeks later...
julion Community Regular

julion

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Yes some R32s came out with a non-turbo RB25DE engine (although less powerful than the R33 version).

yeh, I have an R32 RB25DE.. any light mods I can do? I'm a student so strapped for cash, but it does have a new air filter, performance clutch and exhaust.. what else could be done?

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  • 2 weeks later...
ebola Proficient

ebola

Posted
Posted
$300 will get you a set of Coby extractors from NZ. Very good build quality!

He said it already has a performance exhaust on it... so any gain would be minimal (surley).

yeh, I have an R32 RB25DE.. any light mods I can do? I'm a student so strapped for cash, but it does have a new air filter, performance clutch and exhaust.. what else could be done?

Perhaps getting some cams would help... provided you don't mind revs, that is.

Get a job when you finish uni and get a turbo (like I did). Till then, save your money, and enjoy your lightweight NA car

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