Peppy_t92 Silver Donating Members 748 Member For: 11y 9m 17d Gender: Male Location: Liverpool Posted 07/07/14 08:51 AM Author Share Posted 07/07/14 08:51 AM My best advice that I can give you... Is don't be a scrooge, as you will only have to fork out more money, later down the line. Buy right, buy once...Couldn't agree more, just looking at the different options Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 3m 28d Gender: Male Location: Perth Posted 07/07/14 09:32 AM Share Posted 07/07/14 09:32 AM Haha well on that note i actually bought the turbosmart adapter which just relocates the reg and had a bit of an issue here. Even with modifiying the intank pump I couldn't get base pressure below 3 bar. After I drilled the inner hole bigger it went down. Looking back should have bought a dual entry rail etc lol oh well live and learn.3 bar or 4bar? Link to comment Share on other sites More sharing options...
willo88 Member 700 Member For: 12y 11m 26d Gender: Male Location: Newcastle Posted 07/07/14 09:36 AM Share Posted 07/07/14 09:36 AM ^What she said. I don't see the need to demand anything less than 4 bar Link to comment Share on other sites More sharing options...
gaz097 Bronze Donating Members 1,752 Member For: 13y 5m 30d Posted 07/07/14 10:56 AM Share Posted 07/07/14 10:56 AM Yes 4 bar at idle with no vacuum. Now I'm no expert but I am trying to learn but it needs to go below this with vacuum attached does it not? I assume if u run -1 bar of vacuum at idle u need to be able to get down to 3 bar as this will be the spring pressure? This is basically what my fuel pressure gauge tells me anyway. Link to comment Share on other sites More sharing options...
gaz097 Bronze Donating Members 1,752 Member For: 13y 5m 30d Posted 07/07/14 10:59 AM Share Posted 07/07/14 10:59 AM My best advice that I can give you... Is don't be a scrooge, as you will only have to fork out more money, later down the line. Buy right, buy once...Agree to a point but you will learn twice as much through trial and error then spending hundreds on something that possibly you will never reach the potential of. The way I look at it the worst case is I have wasted 30 bucks on an adapter but learnt so much for future car builds Link to comment Share on other sites More sharing options...
Peppy_t92 Silver Donating Members 748 Member For: 11y 9m 17d Gender: Male Location: Liverpool Posted 07/07/14 11:25 AM Author Share Posted 07/07/14 11:25 AM These engines generally sit around -18 to -20inHg (-8 to 9psi) so not quite -1bar, but I've only ever seen the pressure drop a couple of psi once vacuum is attached to the reg (dodgy reg?)... In terms of trial and error, in an effort to lower my base fuel pressure after installing the twin 460's (88psi), I looked for any restrictions, came up with my 034motorsorts adjustable reg that sits in the position of the factory reg, drilled it bigger bit by bit, but could only lower the base fuel pressure to 80psi, I also tried with the standard reg, but that was worse... So in my head, there is a bucket load of fuel trying to get through that small hole on the reg/rail, restricting the flow, now from my understanding, with the turbosmart reg adapter it will still need to pass through this small hole?, so I'm not really achieving anything. an aftermarket reg and rail will free up those restrictions, and hopefully lower the base pressure, if not I'll have to look at a bigger return line, or a voltage regulator etc Link to comment Share on other sites More sharing options...
gaz097 Bronze Donating Members 1,752 Member For: 13y 5m 30d Posted 07/07/14 11:39 AM Share Posted 07/07/14 11:39 AM Hmm there you go I always thought the negative values on my boost gauge were psi for some reason never clicked on the different scale. I get just under half a bar of change with vacuum applied (Spanking new fpr1200). Yeah for sure that is going to be the restriction as my hole is at 4mm now not 3 as supplied (still smaller then the 6mm hole going into the tank though). Also twin walbros will flow more then 044's I believe so that wouldn't be helping. Link to comment Share on other sites More sharing options...
Peppy_t92 Silver Donating Members 748 Member For: 11y 9m 17d Gender: Male Location: Liverpool Posted 07/07/14 11:45 AM Author Share Posted 07/07/14 11:45 AM (edited) Exactly ^I'll update once I install everything throughout the week Edited 07/07/14 11:46 AM by Peppy_t92 Link to comment Share on other sites More sharing options...
gaz097 Bronze Donating Members 1,752 Member For: 13y 5m 30d Posted 08/07/14 07:44 AM Share Posted 08/07/14 07:44 AM Thinking about this further, I'd be surprised if pw have the inner seal as they only join the outer to the inner. Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 3m 28d Gender: Male Location: Perth Posted 08/07/14 07:54 AM Share Posted 08/07/14 07:54 AM These engines generally sit around -18 to -20inHg (-8 to 9psi) so not quite -1bar, but I've only ever seen the pressure drop a couple of psi once vacuum is attached to the reg (dodgy reg?)...In terms of trial and error, in an effort to lower my base fuel pressure after installing the twin 460's (88psi), I looked for any restrictions, came up with my 034motorsorts adjustable reg that sits in the position of the factory reg, drilled it bigger bit by bit, but could only lower the base fuel pressure to 80psi, I also tried with the standard reg, but that was worse... So in my head, there is a bucket load of fuel trying to get through that small hole on the reg/rail, restricting the flow, now from my understanding, with the turbosmart reg adapter it will still need to pass through this small hole?, so I'm not really achieving anything. an aftermarket reg and rail will free up those restrictions, and hopefully lower the base pressure, if not I'll have to look at a bigger return line, or a voltage regulator etcDo what I did with the Turbosmart adaptor, Cut the small dick of the bottom. This turns the adaptor into a plug ala the PW item and leaves the full rail return port open.Then install your reg in the return line to get the based pressure you need.I did this 3 odd years ago and it works well.I have one port pluge and install my gauge in the spare post. Turbosmart orginally designed it for a VW rail and it probably works well on a smaller motor but with a couple of decent pumps and it can't keep up.Removing the lower seal opens up a huge void and port under the adaptor for the return flow.I'll post some pics of mine when I get back home tomorrow night. Link to comment Share on other sites More sharing options...
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