Adriano Posted May 21, 2011 Share Posted May 21, 2011 I think I'm just gonna give it a go standard rb30 oil restrictors and standard rb30e pump Standard thread in a month, "why is my catchcan filling up with oil" Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5824304 Share on other sites More sharing options...
sriver killer Posted May 21, 2011 Share Posted May 21, 2011 Standard thread in a month, "why is my catchcan filling up with oil" Of course I will be here to let you know how the thing goes! Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5824413 Share on other sites More sharing options...
fletch rb30 Posted May 23, 2011 Share Posted May 23, 2011 i hammered in the rear restrictor about 20mm then filled it to the top of the block with that liquid metal stuff you mix together with your fingers. 1.5 restrictor at the front and i brazed up the vct feed and drilled it to 1.5mm n1 pump. I had problems on the dyno with oil blowing out the rocker breathers and i figured i had a bit of blowby and the oil could not drain back so i just pulled out the dipstick and have had no problems! Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5828786 Share on other sites More sharing options...
bubba Posted May 24, 2011 Share Posted May 24, 2011 Those of you venting the crankcase to a catchcan via the dipstick, how have you made the connection onto the dipstick? 1/2" hose and a clamp? Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5829694 Share on other sites More sharing options...
Cubes Posted July 9, 2011 Share Posted July 9, 2011 Please don't use the standard restrictors. I've had 3 sets of restrictors in mine. - R32 RB25DE Head. Standard (over 5500rpm = filled catch can) blocked rear with a 1.5mm front (not enough oil on start up) and finally 2 x 1.3mm which is perfect. RB25det - blocked rear and a 1.5mm is apparently ok. Others may be able to share their cold start storys with the same setup. The blocked rear and 1.5mm up front was fine once warm but cold starts I could hear something knocking about up top rear on the exhaust side - coincidentally that's the furthest away from the front 1.5mm restrictor. With the 2 x 1.3mm all noises disappeared and all sounds sweet again. Also - no catch can filling either. Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5905566 Share on other sites More sharing options...
hendraaaaa Posted August 3, 2011 Share Posted August 3, 2011 hey guys i have a question, i have rb30et bottom end with s1 r33 rb25 head, thinking of running the stock rb30et oil pump and most of the time i will be using it on the track. what oil restrictors would i need to use/get if any at all? sorry for the n00bness Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5948650 Share on other sites More sharing options...
JonnoHR31 Posted August 3, 2011 Share Posted August 3, 2011 depends what you're doing with vct? Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5948733 Share on other sites More sharing options...
hendraaaaa Posted August 3, 2011 Share Posted August 3, 2011 im running the vct =) and if i were not to run the vct what would i use? thanks Jonathon Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5948944 Share on other sites More sharing options...
JonnoHR31 Posted August 3, 2011 Share Posted August 3, 2011 depends where your feeding it from? external or internal? Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5949060 Share on other sites More sharing options...
Dobz Posted August 9, 2011 Share Posted August 9, 2011 Please don't use the standard restrictors. I've had 3 sets of restrictors in mine. - R32 RB25DE Head. Standard (over 5500rpm = filled catch can) blocked rear with a 1.5mm front (not enough oil on start up) and finally 2 x 1.3mm which is perfect. RB25det - blocked rear and a 1.5mm is apparently ok. Others may be able to share their cold start storys with the same setup. The blocked rear and 1.5mm up front was fine once warm but cold starts I could hear something knocking about up top rear on the exhaust side - coincidentally that's the furthest away from the front 1.5mm restrictor. With the 2 x 1.3mm all noises disappeared and all sounds sweet again. Also - no catch can filling either. +1 for using two 1.3mm restrictors. Just using one 1.5mm might be ok for a solid lifter setup. Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5957794 Share on other sites More sharing options...
TiTAN Posted August 10, 2011 Share Posted August 10, 2011 my setup with 2x 1.5mm was still pumping way too much oil to the head as soon as you took it past 6000. its just been changed to 1x 1.5mm and 1x 1mm with a couple extra oil drains directly to the sump for good measure. will see how it goes this time round. 1x 1.5mm is not enough for the hydraulic lifters (for solids sure that will work), 2x 1mm can be hit and miss, works for some gives lots of lifter noise for others. Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5960207 Share on other sites More sharing options...
the_jack Posted August 11, 2011 Share Posted August 11, 2011 when i brought my oil restrictors i just brought 2 blanks, one of which im drilling out to 1.5mm. iv already put the blank in ontop of the rear oil restrictor and its nice tight fit Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5961575 Share on other sites More sharing options...
mattis96 Posted August 11, 2011 Share Posted August 11, 2011 (edited) i also got 1.5mm and the other blocked in 25/30det. might have to change it to 1mm now, thanks for the tips Edited August 11, 2011 by mattis96 Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5962392 Share on other sites More sharing options...
TiTAN Posted August 12, 2011 Share Posted August 12, 2011 you may find you have a lot of lifter noise with a single 1mm or 1.5mm feed. Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5963445 Share on other sites More sharing options...
The Bogan Posted August 17, 2011 Share Posted August 17, 2011 I'm getting a adjustable feed for my 25/30 oil control problem, it is externally adjustable and will be set so when at high rpm the oil will be high enough for cooling and lubrication but will not overflow, by rights this should still see enough oil at low rpm to feed my lifters. With my 2 head drains and the drain from the can to the sump hopefully the oil is going to stay in the motor. Hopefully. Link to comment https://www.sau.com.au/forums/topic/360842-2530-are-you-using-an-oil-ristrictor/page/2/#findComment-5970902 Share on other sites More sharing options...
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