Greddy lightweight pulleys on rb25?

[project 500]

Has anyone tried the rb26 greddy pulleys on an rb25?

As far as I can see online the alternator and water pump should fit, not sure about power steering though. Google won't tell me the sizes of the pulleys either so I'm unsure.

[GTSBoy]

I'm pretty sure 25s and 26s have different offsets for all the pulleys.

[TurboTapin]

Just to add to this, the RB25 S1/S2 power steering pulley is 3 rib where as the RB20, RB26 & Neo have a 4 rib. This link mentions it and and the offset GTSBoy mentionned. 

https://www.facebook.com/RossPerformanceParts/photos/a.1384131785198180/2713886952222650/?type=3

 

Edited August 30, 2022 by TurboTapin

[project 500]

Cheers I didn't know that. I have an r34 neo, wondering if for the PS pulley I could put something behind it to make it stick out more lol if not I can use the 2 greddy ones at least.

[GTSBoy]

What's wrong with your existing pulleys?

[project 500]

On 30/08/2022 at 2:56 PM, GTSBoy said:

What's wrong with your existing pulleys?

They aren't pretty and blue 😂

[GTSBoy]

 

?

[project 500]

Lolol, aren't the greddy ones lighter though? Meaning less drag on the crankshaft?

[TurboTapin]

On 8/30/2022 at 2:03 AM, project 500 said:

Lolol, aren't the greddy ones lighter though? Meaning less drag on the crankshaft?

It's snake oil.

[niZmO_Man]

Drill holes in your existing ones? (i'm joking, don't do it)

[project 500]

On 30/08/2022 at 4:38 PM, TurboTapin said:

It's snake oil.

They do look cool though

On 30/08/2022 at 6:55 PM, niZmO_Man said:

Drill holes in your existing ones? (i'm joking, don't do it)

Lol I'd rather pay for the greddy ones

[project 500]

Does anyone know the diameters of the rb26 and 25 neo water pump and alternator pulleys?

[GTSBoy]

What does the diameter matter if they don't line up with the crank?

[niZmO_Man]

On 31/08/2022 at 10:39 AM, GTSBoy said:

What does the diameter matter if they don't line up with the crank?

you could use spacers to move the pulleys? (I'm joking, don't do this)

[hardsteppa]

I have used the ebay/greddy knock off kit. Don't bother.

Bought the nz performance water pulley - good item, but hey only bought it cos i like wasting money on car parts. Dont expect anthing crazy like "noticeable performance gain", come on :p.

[robbo_rb180]

On 8/30/2022 at 6:55 PM, niZmO_Man said:

Drill holes in your existing ones? 

On 8/31/2022 at 4:00 PM, niZmO_Man said:

use spacers to move the pulleys? 

FYP 😜 I want to see the carnage

The pulleys are a waste if just wanting fancy blue ones. Remove your current ones, clean them and get them anodized.
Only time to change is when required to under drive power steering & alternator if spending alot of time in high rpm (ie...on race track)

[The Bogan]

Paint yours blue

+25kw

[project 500]

On 31/08/2022 at 4:00 PM, niZmO_Man said:

you could use spacers to move the pulleys? (I'm joking, don't do this)

In the link you shared it says that the alternator and water pump pulley offsets, groove count and diameter are all the same across RBs. If that's the case I could use those 2 pulleys and not worry about the PS pulley,  is that correct or am I completely missing something?

[project 500]

On 31/08/2022 at 4:53 PM, hardsteppa said:

I have used the ebay/greddy knock off kit. Don't bother.

Bought the nz performance water pulley - good item, but hey only bought it cos i like wasting money on car parts. Dont expect anthing crazy like "noticeable performance gain", come on :p.

Cheers mate,  I don't expect anything noticeable, maybe 0.1% but it looks better and I'm changing a few things anyways so I can make it look a bit ricier in the process. 

On 31/08/2022 at 4:54 PM, robbo_rb180 said:

FYP 😜 I want to see the carnage

The pulleys are a waste if just wanting fancy blue ones. Remove your current ones, clean them and get them anodized.
Only time to change is when required to under drive power steering & alternator if spending alot of time in high rpm (ie...on race track)

Lol I'd prefer to keep the carnage to shredding a set off on a "private road"

On 31/08/2022 at 5:31 PM, The Bogan said:

Paint yours blue

+25kw

Lol sounds too good to be true

[hardsteppa]

I drillrd multiple holes in the oem steel water pump pulley ages back. No carnage lol, only "why TF did i bother".