Turbo Upgrade

[Cef31]

Hey guys,

need to change my turbo asap, have found a series 1 r33 turbo but i only ever here of people talking about putting series 2 rb25 turbos on as an upgrade - is there really a big difference between the turbo's? and will a series 1 still give me a reasonable power upgrade from standard rb20??

Any info would be great.

Cal.

[LTHLRB]

both the same turbo's... a good turbo upgrade is a slide highflow for an rb20. Speak to "slide" on the forums.

[konect]

both the same turbo's... a good turbo upgrade is a slide highflow for an rb20. Speak to "slide" on the forums.

lol says he who made a thread asking about KKR turbos

obviously ur mind is made up.

[LTHLRB]

i guess it is mate, it was a thread about getting opinions and information on those turbos. But the slide highflow gives me the power i want i am happy

[Cef31]

i thought one of them has a steel wheel and one a ceramic?

[Simon-S14]

both are ceramic

however the s1 has a steel compressor wheel where as the s2 has a nylon compressor wheel. this doesnt affect anything really. the series two's are suppose to be more responsive.

[konect]

both are ceramic

however the s1 has a steel compressor wheel where as the s2 has a nylon compressor wheel. this doesnt affect anything really. the series two's are suppose to be more responsive.

soooo is the KKR dead yet?

[DOUGMO]

not the best upgrade, go a high flow with steel wheels

they are to limited by the ceramic wheel. boost it too much or get it too hot and bang.

they do make the same power with less boost but you also get more lag.

[salad]

theyre a great upgrade for rb20s

gives you power all the way to redline unlike the rb20 turbo and theyre cheap. power gain is supposed to be in the region of 10-15rwkw

people are a little skeptical about having a nylon impeller but it doesnt make a difference, the turbine will fail long before the impeller

get which ever one is in better condition

Edited October 15, 2006 by salad

[Simon-S14]

thats it, awesome upgrade for those who want a bit more poke then the rb20 turbo.

Konnect: still going strong mate i sold the ceffy tho

[konect]

thats it, awesome upgrade for those who want a bit more poke then the rb20 turbo.

Konnect: still going strong mate i sold the ceffy tho

So someone actually bought it! nice

[Simon-S14]

yeah and the KKR is still being thrashed

8 months and still going strong, running 1.2 bar max, most ppl would be happy with that

ive got a 32 4 door now

[konect]

1.2bar max because you limited it or is that the max efficiency of the turbo?

[Simon-S14]

because its a stock RB bottom end?

lol

[BDF1663]

Hi -

Hope this finds you'll well.

The following question might sound stupid but I need to know if a RB25DET turbo is a direct fit to a RB20DET? No modifications required?

[Simon-S14]

thats right, direct fit, but you need the elbox off the compressorhousing also to suit.

but yeah, all bolt on

[meanman]

There are a few minor modifications. As stated already you need the RB25 elbow for the turbo plus I had to get one of the lines modified I cant remember if it was the oil or the water line. One fits fine the other one doesnt.

[Simon-S14]

ey? the water and oil lines are exactally same as RB20 turbo so there should be no need to touch either the feed or returns for them.

[Cef31]

was just installing my 33 turbo and the coolant lines have larger bolts as i could not use my standard lines and bolts.

[huddy]

i had the same problem going from cefiro rb20 turbo to 32skyline rb20 turbo. - nothing a big drill bit couldnt overcome