Kosij Donating Members 2,045 Member For: 13y 9m 18d Gender: Male Posted 08/01/13 09:55 AM Share Posted 08/01/13 09:55 AM With the twin pumps its about 110psi at idle :/ Link to comment https://www.fordxr6turbo.com/forum/topic/77949-e85/page/163/#findComment-1346605 Share on other sites More sharing options...
IH8TOADS Silver Donating Members 3,618 Member For: 19y 10m 21d Gender: Male Location: OZ Posted 08/01/13 10:30 AM Share Posted 08/01/13 10:30 AM If your injectors are seeing that pressure, that ain't cool. Most are only rated to 7 bar. Link to comment https://www.fordxr6turbo.com/forum/topic/77949-e85/page/163/#findComment-1346621 Share on other sites More sharing options...
CHLAXN Donating Members 932 Member For: 17y 7d Gender: Male Location: north QLD Posted 08/01/13 10:34 AM Share Posted 08/01/13 10:34 AM (edited) My tuner set my turbosmart fpr1200 up at 58psi with vac line off?? That right or it different with e85 Edited 08/01/13 10:37 AM by CHLAXN 2 Link to comment https://www.fordxr6turbo.com/forum/topic/77949-e85/page/163/#findComment-1346624 Share on other sites More sharing options...
Kosij Donating Members 2,045 Member For: 13y 9m 18d Gender: Male Posted 08/01/13 10:43 AM Share Posted 08/01/13 10:43 AM <blockquote class='ipsBlockquote'data-author="IH8TOADS" data-cid="1346621" data-time="1357641006"><p>If your injectors are seeing that pressure, that ain't cool. Most are only rated to 7 bar.</p></blockquote>I assume they are seeing as that gauge is just before them :( so a new rail and reg would be good yeah? Link to comment https://www.fordxr6turbo.com/forum/topic/77949-e85/page/163/#findComment-1346630 Share on other sites More sharing options...
f6mark Member 2,908 Member For: 14y 3m 15d Gender: Male Posted 08/01/13 10:50 AM Share Posted 08/01/13 10:50 AM oh dear. Link to comment https://www.fordxr6turbo.com/forum/topic/77949-e85/page/163/#findComment-1346637 Share on other sites More sharing options...
IH8TOADS Silver Donating Members 3,618 Member For: 19y 10m 21d Gender: Male Location: OZ Posted 08/01/13 10:59 AM Share Posted 08/01/13 10:59 AM <blockquote class='ipsBlockquote'data-author="CHLAXN" data-cid="1346624" data-time="1357641257"><p>My tuner set my turbosmart fpr1200 up at 58psi with vac line off?? That right or it different with e85</p></blockquote>Sure is :-) Link to comment https://www.fordxr6turbo.com/forum/topic/77949-e85/page/163/#findComment-1346644 Share on other sites More sharing options...
IH8TOADS Silver Donating Members 3,618 Member For: 19y 10m 21d Gender: Male Location: OZ Posted 08/01/13 11:01 AM Share Posted 08/01/13 11:01 AM <blockquote class='ipsBlockquote'data-author="Kosij" data-cid="1346630" data-time="1357641798"><p><blockquote class='ipsBlockquote'data-author="IH8TOADS" data-cid="1346621" data-time="1357641006"><p><br />If your injectors are seeing that pressure, that ain't cool. Most are only rated to 7 bar.</p></blockquote><br /><br />I assume they are seeing as that gauge is just before them :( so a new rail and reg would be good yeah?</p></blockquote>Would talk to your tuner, the injector scalars and/or airflow calibration would be seriously funky if you're seeing that pressure! Link to comment https://www.fordxr6turbo.com/forum/topic/77949-e85/page/163/#findComment-1346648 Share on other sites More sharing options...
RAP1D Member Donating Members 3,739 Member For: 19y 9d Gender: Male Location: Sydney NSW Posted 08/01/13 11:14 AM Share Posted 08/01/13 11:14 AM Yeah I don't think it's that high, I read something about some fuel pres gauges reading high and inconsistently at different temps... Maybe test it at the same outlet with a gauge you know works.If your getting stable fuel pressure from the stock reg then your ok, but alot if people have issues when using twin o44s on the stock reg... I ran twin o44s on stock reg for ages on my g6 without any dramas, but reliability wise I'd go for a rail and reg upgrade combo.You getting cold feet marky? Lol 1 Link to comment https://www.fordxr6turbo.com/forum/topic/77949-e85/page/163/#findComment-1346656 Share on other sites More sharing options...
bossmang FREAKY Donating Members 12,440 Member For: 15y 5m 4d Gender: Male Location: Melbourne Posted 08/01/13 11:16 AM Share Posted 08/01/13 11:16 AM im confusedwhat is the important part in terms of pressures should we be checking here? rail pressure? injector pressure?im lostwhat should it be and what do I need to check?after market rails and a regulator? Link to comment https://www.fordxr6turbo.com/forum/topic/77949-e85/page/163/#findComment-1346660 Share on other sites More sharing options...
IH8TOADS Silver Donating Members 3,618 Member For: 19y 10m 21d Gender: Male Location: OZ Posted 08/01/13 11:55 AM Share Posted 08/01/13 11:55 AM A mechanical return style fuel system needs to have consistent differential pressure across the injector. With 15psi of boost in the cylinders acting against the injector pintle/director plate, you need an extra 15psi fuel pressure to maintain the same differential pressure....in the case of the XR6T that is 58psi or 4 bar. At idle when the car is in vacuum (naturally aspirated) you need less pressure on the rail side to maintain the same pressure drop. 2 Link to comment https://www.fordxr6turbo.com/forum/topic/77949-e85/page/163/#findComment-1346690 Share on other sites More sharing options...
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