|
|
|
|
Thread Tools | Display Modes |
08-07-2015, 12:34 PM | #51 |
Scooby Newbie
Member#: 346731
Join Date: Feb 2013
Chapter/Region:
MAIC
Location: Newport News
Vehicle:2015 WRX Ice Silver |
Compression test while you're in there then. If that's good, guess I would suspect gummed up injector.
* Registered users of the site do not see these ads.
|
08-08-2015, 07:52 PM | #52 |
Scooby Newbie
Member#: 389290
Join Date: Apr 2014
Chapter/Region:
MWSOC
Location: Lake in the hills, IL
Vehicle:2005 WRX STi Black |
#Sabo1886 What symptoms did your pump have when it started to go?
|
08-08-2015, 07:53 PM | #53 | |
Scooby Newbie
Member#: 389290
Join Date: Apr 2014
Chapter/Region:
MWSOC
Location: Lake in the hills, IL
Vehicle:2005 WRX STi Black |
Quote:
#Sabo1886 What symptoms did your pump have when it started to go? |
|
08-12-2015, 07:00 AM | #54 |
Scooby Newbie
Member#: 255202
Join Date: Aug 2010
Chapter/Region:
International
|
Any help with an adjustable fuel pressure regulator for those maxing the hpfp side of the fuel equation?
|
08-13-2015, 01:02 AM | #55 |
Scooby Specialist
Member#: 232940
Join Date: Dec 2009
Location: cold
|
It sounds like you are thinking about a port fuel injection system with the normal 4-6 bar fuel pressure. Direct injection high pressure fuel pumps have an adjustable fuel pressure regulator built into them (the spill valve or whatever term you want to use). The ECU controls that.
|
08-13-2015, 01:21 PM | #56 |
Scooby Newbie
Member#: 389290
Join Date: Apr 2014
Chapter/Region:
MWSOC
Location: Lake in the hills, IL
Vehicle:2005 WRX STi Black |
E85 DI high pressure fuel pump
Last edited by 2015WRX; 08-13-2015 at 11:31 PM. |
10-03-2015, 10:41 PM | #57 |
Scooby Newbie
Member#: 389290
Join Date: Apr 2014
Chapter/Region:
MWSOC
Location: Lake in the hills, IL
Vehicle:2005 WRX STi Black |
Bump for any more info on this important info. I keep hearing that Clark's cars aren't having problems. I'm wondering if he was able to figure oh the tuning parameters while others are struggling. I'm still having partial surging at times. Pressure rockets up over 2500psi and then the pump goes crazy. About to throw in the towel on E.
|
10-04-2015, 11:08 AM | #58 | |
Scooby Specialist
Member#: 401977
Join Date: Sep 2014
Chapter/Region:
TXIC
Location: Houston
Vehicle:IDFK Wat bish whet |
Quote:
|
|
10-04-2015, 12:02 PM | #59 |
Scooby Specialist
Member#: 96712
Join Date: Sep 2005
|
Has anyone contacted APR (huge vw high performance parts supplier) about upgrade parts for the Subaru DIT pump?
APR has a good rep in the VW community and they sell upgraded pumps and kits for all kinds of HPFP. |
10-04-2015, 09:58 PM | #60 |
Scooby Newbie
Member#: 389290
Join Date: Apr 2014
Chapter/Region:
MWSOC
Location: Lake in the hills, IL
Vehicle:2005 WRX STi Black |
E85 DI high pressure fuel pump
Yes, Lucas ethanol treatment. My suspicions are content related. It's tested on a few occasions around E90. I'm debating if a E50 or 30 mix would be easier on the pump internals. From my understanding the system would not need to worry about increases in demand, yet offer the knock abilities of E. |
10-04-2015, 10:00 PM | #61 |
Scooby Specialist
Member#: 401977
Join Date: Sep 2014
Chapter/Region:
TXIC
Location: Houston
Vehicle:IDFK Wat bish whet |
Oh see I'm not using the e treatment one. I'm using the one that specifically says conditioner and fuel lubricant. It's cheaper, thicker, and I haven't had issues.
|
10-04-2015, 11:16 PM | #62 | |
Scooby Specialist
Member#: 270569
Join Date: Jan 2011
Chapter/Region:
International
Vehicle:'15 Foz XT & GT86 |
Quote:
Anything over ~E35 will give you the same power/knock benefits. Above that is really just whatever is easier. E42.5 seems pretty popular as you add even amounts of 93 and E85 each time you fill up. |
|
02-18-2016, 06:54 PM | #63 |
Scooby Newbie
Member#: 378862
Join Date: Jan 2014
Location: Long Island NY
Vehicle:2015 WRX Ice silver |
Sorry to revive an old thread but what are the symptoms of a failing HPFP? my car is bucking real bad when cruising and fuel pressure is dropping below 40psi. no knock at all, everything else looks fine. Dealer isn't helping this time so im on my own :/
|
02-18-2016, 06:58 PM | #64 |
Scooby Newbie
Member#: 389290
Join Date: Apr 2014
Chapter/Region:
MWSOC
Location: Lake in the hills, IL
Vehicle:2005 WRX STi Black |
If you haven't run pump gas thru it in a while do so. What is your high pressure actual reading? You can compare that to the target. I had many issues on full E. A blend is best if you ask me. 50 percent worked flawlessly.
|
02-18-2016, 07:00 PM | #65 |
Scooby Newbie
Member#: 389290
Join Date: Apr 2014
Chapter/Region:
MWSOC
Location: Lake in the hills, IL
Vehicle:2005 WRX STi Black |
If the pump gas doesn't fix it you'll likely need a new HPFP. If your falling to 40psi your not HPFP is fried. My car had a couple of episodes but cleared up after some tune adjustments.
|
02-18-2016, 07:13 PM | #66 |
Scooby Newbie
Member#: 378862
Join Date: Jan 2014
Location: Long Island NY
Vehicle:2015 WRX Ice silver |
ive been running e85 for close to 10,000 miles without running ANY 93. i will definitely fill up with 93 when im empty.
|
02-18-2016, 10:21 PM | #67 |
Scooby Newbie
Member#: 389290
Join Date: Apr 2014
Chapter/Region:
MWSOC
Location: Lake in the hills, IL
Vehicle:2005 WRX STi Black |
Get that fuel out of there asap. Some guy had a similar problem on the forums. That's far to long to run E in the car. It's better to cycle gas thru at least every 5 tanks or so. E is an excellent fuel but some fuel starts to gum up. This isn't a new issue with E and DIT cars. Better to play it safe.
|
02-18-2016, 10:44 PM | #68 |
Scooby Newbie
Member#: 416278
Join Date: Mar 2015
|
I ran 8k then had problems on a clark tune it's a dw65 too so your saying if I run back to e85 I should be good again just cycle?
|
02-19-2016, 04:04 AM | #69 |
Scooby Newbie
Member#: 381213
Join Date: Feb 2014
Chapter/Region:
SCIC
Location: Southern California
Vehicle:2015 WRX - BASE -CWP Crystal White Pearl |
darn i was so set on the e85 route. didn't know full e85 caused problems with the pumps.
|
02-19-2016, 10:19 AM | #70 |
Scooby Newbie
Member#: 389290
Join Date: Apr 2014
Chapter/Region:
MWSOC
Location: Lake in the hills, IL
Vehicle:2005 WRX STi Black |
If you run E85 to long it can cause a sticky substance on the injectors and fuel pump. This is a common problem running ethanol for some reason. There are theories out there about why it's happening but it's prevalent in the mazdaspeed3 community.
|
02-19-2016, 01:28 PM | #71 |
Scooby Specialist
Member#: 232940
Join Date: Dec 2009
Location: cold
|
Saab did a study on E85 deposits back in the day, as they were leaders in flex fuel during the mid 2000s. Basically you have to cycle regular E0/E10 in there after a while to clear the crap up. There isn't any other way to get rid of it.
|
02-19-2016, 02:07 PM | #72 | |
Scooby Newbie
Member#: 381213
Join Date: Feb 2014
Chapter/Region:
SCIC
Location: Southern California
Vehicle:2015 WRX - BASE -CWP Crystal White Pearl |
Quote:
|
|
02-21-2016, 12:19 PM | #73 |
Scooby Newbie
Member#: 401785
Join Date: Sep 2014
Chapter/Region:
MWSOC
Location: Sterling Heights, Michigan
Vehicle:2015 WRX w/2JZ WRB |
Is anyone on Clark's tune having any problems? Seems like no one who's tuned by Clark is. I've been running straight E85 with the Lucas conditioner for 14,000 miles with no problems on his tune.
|
02-21-2016, 01:33 PM | #74 |
Scooby Newbie
Member#: 416278
Join Date: Mar 2015
|
I was on a clark tune but I'm also Catless fmic and cai so that might be a factor I used Lucas ethanol treatment on every tank lasted about 8k gonna try the switch back
|
03-09-2016, 12:14 PM | #75 |
Scooby Newbie
Member#: 378862
Join Date: Jan 2014
Location: Long Island NY
Vehicle:2015 WRX Ice silver |
Turns out my fuel pump sock got blown off somehow
all is well now. I took your advice and refilled with a full tank of 93 to just clean everything out. How to i go about switching back to e85? Would it be ok to run it low, fillup with e85 then let it idle on the 93 map to pump out fuel in the lines? or is it a must that i manually drain the tank fully? |
Thread Tools | |
Display Modes | |
|
|