BirdmanZ Posted May 1, 2007 Share Posted May 1, 2007 Anyone know the outside diameter of the Tomei oil restrictor. I plan on having my machinist make a couple of them. I know they come with the Tomei head gasket but i already have a head gasket and don't feel like spending hundreds on a Tomei one. Thanks. Brandon Quote Link to comment Share on other sites More sharing options...
bucknasty Posted May 9, 2007 Share Posted May 9, 2007 same as this one? http://cgi.ebay.com/ebaymotors/JUN-Oil-Pump-Drive-Collar-RB26DETT-R32-Skyline-GT-R_W0QQcmdZViewItemQQcategoryZ6778QQihZ019QQitemZ8038732471 Quote Link to comment Share on other sites More sharing options...
Stealth-Z Posted May 9, 2007 Share Posted May 9, 2007 same as this one?http://cgi.ebay.com/ebaymotors/JUN-Oil-Pump-Drive-Collar-RB26DETT-R32-Skyline-GT-R_W0QQcmdZViewItemQQcategoryZ6778QQihZ019QQitemZ8038732471 He is looking for this one. I am in need of one as my machinist lost the first one. Quote Link to comment Share on other sites More sharing options...
BirdmanZ Posted May 9, 2007 Author Share Posted May 9, 2007 That's the one Stealth. Let me know if you find someone in the U.S. that has them. Quote Link to comment Share on other sites More sharing options...
Roostmonkey Posted May 9, 2007 Share Posted May 9, 2007 If some one can confirm dimensions, i'll make some up. Quote Link to comment Share on other sites More sharing options...
Stealth-Z Posted May 9, 2007 Share Posted May 9, 2007 If some one can confirm dimensions, i'll make some up. I will see if it is possible to extract the factory restrictor out of an RB20 block. Since it is pressed in I may be able to get it out. Quote Link to comment Share on other sites More sharing options...
synthtk Posted May 9, 2007 Share Posted May 9, 2007 How many of these do you generally use in the engine? 1 per passage or only or two in the whole engine? As far as dimensions, I would imagine that the outer is the same as or slightly larger than the oil passage diameter with a 1.5mm hole right down the center. Quote Link to comment Share on other sites More sharing options...
Stealth-Z Posted May 9, 2007 Share Posted May 9, 2007 How many of these do you generally use in the engine? 1 per passage or only or two in the whole engine? As far as dimensions, I would imagine that the outer is the same as or slightly larger than the oil passage diameter with a 1.5mm hole right down the center. Depends on the engine. RB26's only need one. They are solid lifter and do not need as much oil as the hydraulic lifters. R34 RB25's may be solid lifter but am not sure. RB20's have two. RB25's have up to three depending on the model. My RB30 has two, I will be blocking off one of them. Here is a write up about it. http://www.skylinesaustralia.com/forums/index.php?showtopic=110680&hl=oil+restrictor Quote Link to comment Share on other sites More sharing options...
Rumnhammer Posted May 10, 2007 Share Posted May 10, 2007 If Brandon gets me to make him one, I dont' think it would take much more time to make a nice batch of them, seems pretty simple. then you guys won't have to worry about finding them, if there is a need it will be filled. Chris Rummel Quote Link to comment Share on other sites More sharing options...
Stealth-Z Posted May 10, 2007 Share Posted May 10, 2007 Thank you Chris! I could not extract one out of the RB20 block for a percise measurement. Any chance I could pay you for a blank solid one as well? I still need to block off one of my oil feeds. Quote Link to comment Share on other sites More sharing options...
Pete84 Posted May 10, 2007 Share Posted May 10, 2007 Curious, why do you need oil restrictors? Don't you want good oil flow? Quote Link to comment Share on other sites More sharing options...
jdizzy204 Posted May 11, 2007 Share Posted May 11, 2007 oil restrictors keep excess oil from getting into the head and keeps more in the pan. thus preventing oil starvation in track cars. Quote Link to comment Share on other sites More sharing options...
BirdmanZ Posted May 21, 2007 Author Share Posted May 21, 2007 Well i managed to find an oil restrictor here in the U.S. I got it from XS Engineering, only 10 bucks plus shipping! However, if you want to make one, the OUTSIDE diameter is 6.12mm and the height is 5mm. Obviously the INSIDE diamter is going to be 1.5mm. Also, one end has a slight taper to aid in starting it in the block. Thought you guys might want to know. Brandon Quote Link to comment Share on other sites More sharing options...
Careless Posted May 22, 2007 Share Posted May 22, 2007 tomei sells restrictors in sizes ranging fro 1.0, 1.2, and 1.5 mm ID sizes what are they made of though? Factory ones are brass I think. the others look like either stainless or aluminum. Quote Link to comment Share on other sites More sharing options...
BirdmanZ Posted May 22, 2007 Author Share Posted May 22, 2007 I'm not 100% sure but i believe they are made from mild steel. They are not made from stainless or aluminum because i picked it up with a magnet. Quote Link to comment Share on other sites More sharing options...
Careless Posted May 22, 2007 Share Posted May 22, 2007 I'm not 100% sure but i believe they are made from mild steel. They are not made from stainless or aluminum because i picked it up with a magnet. i guess since i'll be taking my engine to a machinist i can see if he can gun drill a 6.5 mm dowel in various sizes and turn them down to spec for the RB-Z crowd we have here Ill prolly have em less than 10 bucks if it's worth while. Quote Link to comment Share on other sites More sharing options...
fentin_fury Posted May 26, 2007 Share Posted May 26, 2007 how do I find XS engineering? Might be in need of the oil restrictors. Q Quote Link to comment Share on other sites More sharing options...
fentin_fury Posted May 26, 2007 Share Posted May 26, 2007 how do I find XS engineering? Might be in need of the oil restrictors. Q found them..... Quote Link to comment Share on other sites More sharing options...
Careless Posted May 31, 2007 Share Posted May 31, 2007 found them..... Hey Quentin, If you end up buying a restrictor from XS, lemme know, I might pick one up too if you can order it, and we'll meet up and yada yada yada Quote Link to comment Share on other sites More sharing options...
fentin_fury Posted June 1, 2007 Share Posted June 1, 2007 I'll get a few - from where ever I get them. NP Quote Link to comment Share on other sites More sharing options...
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