arronm Dropping a turd Gold Donating Members 9,520 Member For: 17y 28d Gender: Male Location: Perth Posted 08/07/16 02:26 AM Share Posted 08/07/16 02:26 AM That's correct. When it wears a hole , the pressure will not be excessive at any RPM Link to comment Share on other sites More sharing options...
SipposBFT Member 81 Member For: 15y 3m 3d Posted 08/07/16 02:42 AM Author Share Posted 08/07/16 02:42 AM Am hearing & understand all yr theories... But yes... If the backing plate isn't worn.. There won't b any pressure bypass through the plate... And assuming relief valve mod just holds more pressure inside Ye engine through harder Spring... Anyone change Spring themselves? Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 2m 1d Gender: Male Location: Perth Posted 08/07/16 02:45 AM Share Posted 08/07/16 02:45 AM The pressure relief mods are to increase bypass at high revs to keep pressure under control and reduce the chance of splitting the housing. 1 Link to comment Share on other sites More sharing options...
camo86T Silver Donating Members 1,810 Member For: 10y 9m 12d Gender: Male Location: SW Sydney Posted 08/07/16 02:55 AM Share Posted 08/07/16 02:55 AM (edited) I'm trying to make a decision on pump gears also So far it seems to make sense to spend a bit extra on the complete atomic pump changeover option @ $990, which already has billet end plate and reliefs Also cheaper for tuner to install the whole unit as the old one doesn't need to be stripped down Plus no need to worry about the condition of your existing housing Edited 08/07/16 02:57 AM by camo86T 3 Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 2m 1d Gender: Male Location: Perth Posted 08/07/16 03:22 AM Share Posted 08/07/16 03:22 AM ^this man speaketh the truth Link to comment Share on other sites More sharing options...
SipposBFT Member 81 Member For: 15y 3m 3d Posted 08/07/16 06:11 AM Author Share Posted 08/07/16 06:11 AM 3 hours ago, Ralph Wiggum said: The pressure relief mods are to increase bypass at high revs to keep pressure under control and reduce the chance of splitting the housing. So if I am not planning to increase revs past current limiter (not sure if 450ish rwkw is possible) there's no need 4 this? Link to comment Share on other sites More sharing options...
masda74 To Loud Gold Donating Members 4,112 Member For: 12y 11m 24d Gender: Male Location: WA, Perth Posted 08/07/16 06:43 AM Share Posted 08/07/16 06:43 AM Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 5m 24d Gender: Male Location: Adelaide Posted 08/07/16 06:54 AM Share Posted 08/07/16 06:54 AM Shout out camo and I can hook you up mate 1 Link to comment Share on other sites More sharing options...
SipposBFT Member 81 Member For: 15y 3m 3d Posted 08/07/16 01:13 PM Author Share Posted 08/07/16 01:13 PM Am being serious masdang!!! ??. Wel knowledge is King & another convo with John ... Says they've done numerous xrs with 500+ rw without plate changes which r still going ok... As the only concern with these pumps are the sintered gears disintegration... It should b fine Link to comment Share on other sites More sharing options...
arronm Dropping a turd Gold Donating Members 9,520 Member For: 17y 28d Gender: Male Location: Perth Posted 08/07/16 02:09 PM Share Posted 08/07/16 02:09 PM Dude its your engine and cash, do what you like. I dont take chances , whole atomic assembly is only a grand. 3 Link to comment Share on other sites More sharing options...
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