 Oil Restriction, some answers for those who are wondering |
|
|
|
 ·
 ·
 ·
 ·
 ·
 ·
 ·
 ·
 ·
 ·
 ·
 ·
   |
 6 Jun 2008, 10:33 PM
Post
#1
|
|
 Goal: 350hp and mid 12s   Posts: 233 Joined: 26th September, 2006 From: duncraig Car(s): Nissan skyline R33 Real Name: daniel Trader Rating : 2  |
hey all i have just been researching oil restiction for this build. i have taken the following info from the major thread. info was provided by gary (sydney kid) and can be found on page 153. here it is again. hope this helps some ppl
RB26 cylinder head= 2 oil feed galleries between the block and the head We block one off, same as RB26's are standard We use a 1.5 mm restrictor in the other Plenty of oil flow to the camshaft bearings, not too much oil slopping around in the head, getting chucked into the catch can and leaving the sump in short supply. RB25 with VVT= 2 oil feed galleries between the block and the head Plus 1 feed to the VVT actuator We block one off, same as RB26's are standard We use a 1.5 mm restrictor in the other Plus leave the VVT oil feed as per standard Plenty of oil flow to the camshaft bearings and VVT actuator but not too much oil slopping around in the head, getting chucked into the catch can and leaving the sump in short supply. RB25 without VVT= 2 oil feed galleries between the block and the head Plus 1 feed to the VVT actuator We block one off, same as RB26's are standard We use a 2.0 mm restrictor in the other Plus block off the VVT oil feed and a couple of diagrams http://www.skylinesaustralia.com/forums/in...st&id=26521 http://www.skylinesaustralia.com/forums/in...st&id=26522 the only question i still have that i have not been able to find an answer to is, does it matter which gallery you restrict and which you block off?? dan -------------------- having no licence sucks
having a skyline makes it all better |
  |
 
|
| Googlebot |
6 Jun 2008, 10:33 PM
Post
#
|
 Trader Rating : |
Google Ads Register on the forums for fewer ads. |
|
|
|
|
10 Jun 2008, 02:38 PM
Post
#2
|
|
 RB31DET  Posts: 11,062 Joined: 31st January, 2003 From: Sydney Car(s): R32GTST R33GTST Stagea Trader Rating : 48 |
QUOTE(ahh 33 s2 @ 6 Jun 2008, 10:33 PM)  hey all i have just been researching oil restiction for this build. i have taken the following info from the major thread. info was provided by gary (sydney kid) and can be found on page 153. here it is again. hope this helps some ppl RB26 cylinder head= 2 oil feed galleries between the block and the head We block one off, same as RB26's are standard We use a 1.5 mm restrictor in the other Plenty of oil flow to the camshaft bearings, not too much oil slopping around in the head, getting chucked into the catch can and leaving the sump in short supply. RB25 with VVT= 2 oil feed galleries between the block and the head Plus 1 feed to the VVT actuator We block one off, same as RB26's are standard We use a 1.5 mm restrictor in the other Plus leave the VVT oil feed as per standard Plenty of oil flow to the camshaft bearings and VVT actuator but not too much oil slopping around in the head, getting chucked into the catch can and leaving the sump in short supply. RB25 without VVT= 2 oil feed galleries between the block and the head Plus 1 feed to the VVT actuator We block one off, same as RB26's are standard We use a 2.0 mm restrictor in the other Plus block off the VVT oil feed and a couple of diagrams http://www.skylinesaustralia.com/forums/in...st&id=26521 http://www.skylinesaustralia.com/forums/in...st&id=26522 the only question i still have that i have not been able to find an answer to is, does it matter which gallery you restrict and which you block off?? dan I thought I was quite specific when I posted "same as RB26's are standard" ie; the front one Cheers Gary -------------------- I don't own or work for a workshop and I don't know everything.
Wanted standard front and rear strut tops for R32/33/34 Skylines and Stageas plus 200SX S15 & S14 Group Buys on for Road & Track Kits (Whiteline, Eibach & Bilstein) for R32GTST, R32GTR, R32GTS4, R33GTST, R33GTR, R33GTS4, R34GTT, R34GTR and Stagea, plus Road and Track Kits for 200SX, S15 & S14     |
|
|
|
|
10 Jun 2008, 06:28 PM
Post
#3
|
|
|
Goal: 350hp and mid 12s Posts: 233 Joined: 26th September, 2006 From: duncraig Car(s): Nissan skyline R33 Real Name: daniel Trader Rating : 2 |
sorry but am not to familiar with the rb26 nor any engine atm moment. so sorry to ask pretty much the same question again, so you restrict the front gallery?? yes?
-------------------- having no licence sucks
having a skyline makes it all better |
|
|
|
|
1 Jul 2008, 12:03 AM
Post
#4
|
|
 400rwhp - 3000cc    Posts: 14,810 Joined: 20th June, 2002 Car(s): R32 GTS30t Trader Rating : 10 |
QUOTE(ahh 33 s2 @ 6 Jun 2008, 10:03 PM) RB25 without VVT= 2 oil feed galleries between the block and the head Plus 1 feed to the VVT actuator We block one off, same as RB26's are standard We use a 2.0 mm restrictor in the other Plus block off the VVT oil feed I ran with a single 1.5mm up front and blocked rear as suggested in the thread. The setup seems ok and has travelled quite a few kms but from day one I was getting a little valve train noise for a fraction of a second following start up of which was not there prior. If I were to do it again I'd probably go with leaving the std RB30 1.8mm restrictor up front. All though I possibly believe the valve train noise was as a result of the head bloke not knowing what he was doing with the lifters as a result they trapped a little air inside. So as they so do it right do it yourself. I've pulled the lifters apart; meticulously cleaned, primed and reassembled. -------------------- I use and recommend  |
|
|
|
|
5 Jul 2008, 06:08 PM
Post
#5
|
|
|
Rank: RB20DET Posts: 48 Joined: 7th January, 2008 Car(s): R32 Coupe, RB31/25det Real Name: James Trader Rating : 0 |
Im using th 25de (vvt). Ive been told i have two main options, one is to block the rear gallery all together but was told it can starve one end of the head during start up. Which isnt much of a trouble as it disappears once oil pressure is up but id rather go with the other option to just restrict both galleries using the tomei restrictors. Anyone else gone 4 this option?
|
|
|
|
|
5 Jul 2008, 06:45 PM
Post
#6
|
|
|
400rwhp - 3000cc Posts: 14,810 Joined: 20th June, 2002 Car(s): R32 GTS30t Trader Rating : 10 |
The VCT head has a total of 3 feeds.
How you restrict it depends on the oil pump your going to run. -------------------- I use and recommend |
|
|
|
|
9 Jul 2008, 01:05 PM
Post
#7
|
|
|
RB31DET Posts: 11,062 Joined: 31st January, 2003 From: Sydney Car(s): R32GTST R33GTST Stagea Trader Rating : 48 |
QUOTE(xsv_32 @ 5 Jul 2008, 06:08 PM) Im using th 25de (vvt). Ive been told i have two main options, one is to block the rear gallery all together but was told it can starve one end of the head during start up. Which isnt much of a trouble as it disappears once oil pressure is up but id rather go with the other option to just restrict both galleries using the tomei restrictors. Anyone else gone 4 this option? Block the middle and use the front feed (the VCT one) and then restrict the rear feed according to the table. Cheers Gary -------------------- I don't own or work for a workshop and I don't know everything.
Wanted standard front and rear strut tops for R32/33/34 Skylines and Stageas plus 200SX S15 & S14 Group Buys on for Road & Track Kits (Whiteline, Eibach & Bilstein) for R32GTST, R32GTR, R32GTS4, R33GTST, R33GTR, R33GTS4, R34GTT, R34GTR and Stagea, plus Road and Track Kits for 200SX, S15 & S14 |
|
|
|
|
6 Aug 2008, 04:33 PM
Post
#8
|
|
 I'm a pilot, yes that does mean I'm always pissed Posts: 287 Joined: 11th June, 2005 From: Gold Coast, QLD Car(s): R32 GTR Real Name: David Trader Rating : 0 |
where are the restrictors for sale???
-------------------- The banks have some sort of evil conspiracy ATM does not stand for "Auto Matic Teller" machines, it stands for "Ass To Mouth", its what they do to you with fees every time you use the bloody machines.
 |
|
|
|
|
6 Aug 2008, 06:32 PM
Post
#9
|
|
 adj : wanted intensely Posts: 19,235 Joined: 15th July, 2003 From: western Sydney Car(s): R33GTST - ZX2R Real Name: Chris Trader Rating : 10 |
tomei have the restrictors - think hi-octane in SYD have them too
though others have made their own from solid rod and a drill. -------------------- |
|
|
|
|
7 Aug 2008, 12:47 PM
Post
#10
|
|
 Incase you didnt notice, I just did over a thousand! Posts: 1,859 Joined: 17th August, 2004 From: Brisbane, Everton Park Car(s): R33 X 2, Yammy 05' R1 Real Name: Michael Trader Rating : 1 |
I posted about this before ages ago....you can use copper mig tips...just find the size that has the correct hole diameter you want and machine it down or cut it down to suit. Pretty sure most std mig tips are around a 1/4" OD.....actually i cant recall now...maybe it was about 7mm or 5/16"...either way it works
 -------------------- *6BOOST MANIFOLDS*
STEAMPIPE EXHAUST MANIFOLDS TO SUIT ALL RB ENGINES CALL KYLE :0410 730 598 |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 6th September, 2008 - 12:56 PM |
Advertisement
