CAMS - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

drewby · 24th February 2005, 01:56 PM

Hi do the rb 20 det cams & pulleys fit the GTR haed, i saw hks 256 one for sale at a good price. thanks for imfo. D

SkylineUSA · 24th February 2005, 05:45 PM

Nope, I wish they did.

JasonO · 24th February 2005, 05:49 PM

Quote:

Originally Posted by SkylineUSA

Nope, I wish they did.

Are you sure ?

I thought the RB26 stock cam was a favoured swap into the RB20, according to our SDU / SAU freinds.

SkylineUSA · 24th February 2005, 05:56 PM

Now I am second guessing myself.

SkylineUSA · 24th February 2005, 06:03 PM

I stand corrected, yes they can be used. There seems to be an issue with the rb26 being a solid, and the rb20 being a hydro.

I'll let someone with a little experiance answer this one.

You can run a mech cam with hydro lifters, but not the other way around.

But, if the lifters can be changed with the cam, you would be golden.

RB211 · 24th February 2005, 06:24 PM

Ah but has the '26 got a pressure oil feed for the lifters??

JasonO · 24th February 2005, 06:33 PM

Ahhh, That's it.....it's just the exhaust cam they swap....Sorry

SkylineUSA · 24th February 2005, 06:35 PM

I was told a long time ago that there was an issue, and they could not be swapped. But, like most things, the info that I was given could have been false.

SkylineUSA · 24th February 2005, 06:39 PM

Quote:

Originally Posted by JasonO

Ahhh, That's it.....it's just the exhaust cam they swap....Sorry

Jason,

Why just the exhaust?

JasonO · 24th February 2005, 07:14 PM

Arrrgh.....
This thread on SAU says that the RB26 cams are a straight swap into the RB20, with some minimalist gains.

The RB20 doesn't have the VTC that the RB25 has, and I'm mixing them all up.....

SkylineUSA · 24th February 2005, 07:21 PM

That link is not working for me, for some reason.

But Drewby wants to do it the other way, so I am pretty sure that will not work.

RB211 · 24th February 2005, 07:49 PM

That's what I was trying to say, there is no pressure oil feed in a'26 to make the hydraulic lash adjusters work. The RB20 cams (unless specials) are ground to suit hydraulic lifters, not solids which have different ramp profiles. You can use Hydraulic lifters under solid cams, but not vice versa.
Jason, I think if you laser drill an oilway in the nose of a GT-R cam, you could probably use the vvt - not 100% on it tho?

24th February 2005, 01:56 PM	#1 (permalink)
drewby GTR Register Member Join Date: Jan 2004 Location: sheffield Posts: 587	CAMS Hi do the rb 20 det cams & pulleys fit the GTR haed, i saw hks 256 one for sale at a good price. thanks for imfo. D

24th February 2005, 06:03 PM	#5 (permalink)
SkylineUSA GTR Register Member Join Date: Jun 2001 Location: Cotswolds Posts: 1,526	I stand corrected, yes they can be used. There seems to be an issue with the rb26 being a solid, and the rb20 being a hydro. I'll let someone with a little experiance answer this one. You can run a mech cam with hydro lifters, but not the other way around. But, if the lifters can be changed with the cam, you would be golden. Last edited by SkylineUSA; 24th February 2005 at 06:18 PM.

24th February 2005, 06:33 PM	#7 (permalink)
JasonO GTR Register Member Join Date: Jun 2001 Location: Here, to stay. Posts: 7,287	Ahhh, That's it.....it's just the exhaust cam they swap....Sorry __________________ Expired.... [E&OE.....]

24th February 2005, 07:14 PM	#10 (permalink)
JasonO GTR Register Member Join Date: Jun 2001 Location: Here, to stay. Posts: 7,287	Arrrgh..... This thread on SAU says that the RB26 cams are a straight swap into the RB20, with some minimalist gains. The RB20 doesn't have the VTC that the RB25 has, and I'm mixing them all up..... __________________ Expired.... [E&OE.....]

24th February 2005, 07:21 PM	#11 (permalink)
SkylineUSA GTR Register Member Join Date: Jun 2001 Location: Cotswolds Posts: 1,526	That link is not working for me, for some reason. But Drewby wants to do it the other way, so I am pretty sure that will not work. Last edited by SkylineUSA; 24th February 2005 at 07:25 PM.

24th February 2005, 05:45 PM	#2 (permalink)
SkylineUSA GTR Register Member Join Date: Jun 2001 Location: Cotswolds Posts: 1,526	Nope, I wish they did.

24th February 2005, 05:56 PM	#4 (permalink)
SkylineUSA GTR Register Member Join Date: Jun 2001 Location: Cotswolds Posts: 1,526	Now I am second guessing myself.

24th February 2005, 06:24 PM	#6 (permalink)
RB211 GTR Register Member Join Date: Feb 2005 Location: Torqueshire Posts: 696	Ah but has the '26 got a pressure oil feed for the lifters??

24th February 2005, 06:35 PM	#8 (permalink)
SkylineUSA GTR Register Member Join Date: Jun 2001 Location: Cotswolds Posts: 1,526	I was told a long time ago that there was an issue, and they could not be swapped. But, like most things, the info that I was given could have been false.

24th February 2005, 07:49 PM	#12 (permalink)
RB211 GTR Register Member Join Date: Feb 2005 Location: Torqueshire Posts: 696	That's what I was trying to say, there is no pressure oil feed in a'26 to make the hydraulic lash adjusters work. The RB20 cams (unless specials) are ground to suit hydraulic lifters, not solids which have different ramp profiles. You can use Hydraulic lifters under solid cams, but not vice versa. Jason, I think if you laser drill an oilway in the nose of a GT-R cam, you could probably use the vvt - not 100% on it tho?

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread: