 D-Jet Fuel Pressure Regulator, How high should it go? |
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| GregAmy |
 Mar 2 2020, 08:38 AM
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#1
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Advanced Member  Group: Members Posts: 2,504 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States 
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What should be the maximum capability of the stock D-Jet pressure regulator? Mine only goes to 36.
If that's normal, is there another similar-format regulator that can go up to around 45psi? Background: Microsquirt project. Was hoping to use the stock regulator, but now need something that I can easily mount in the same location, if possible. Injectors I'm using are rated at 43.5psi. Discuss! |
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| JeffBowlsby |
Mar 3 2020, 04:30 PM
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#2
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914 Wiring Harnesses & Beekeeper Group: Members Posts: 8,963 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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The concern about constant operation at maximum pressure is that you would not want to use any critical part that was to be dependably reliable at its peak output, for very long. Unless you are racing and that's an extreme condition. I had understood this topic was an about everyday application which assumes reliability over extreme conditions - i.e a safety factor.
it would not be reasonable to run 100 PSI pressure rated fuel hose routinely at 100 PSI. Motor oil rated for 300F @ 300F. Your engine constantly at redline. Etc. Why the heartburn? |
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Posts in this topic
GregAmy D-Jet Fuel Pressure Regulator Mar 2 2020, 08:38 AM
914Sixer Stock set to run 28-30. In vapor lock areas up to... Mar 2 2020, 09:31 AM JeffBowlsby 43.5 PSI is the conversion from 300kPA which is th... Mar 2 2020, 10:06 AM
GregAmy You sure your injectors are rated that high for in... Mar 2 2020, 10:41 AM
nordfisch
- You Posted: Injector Table
Hi Jeff,
the table... Mar 2 2020, 02:33 PM JeffBowlsby As I thought...thats maximum flow, without a safet... Mar 2 2020, 11:45 AM GregAmy
As I thought...thats maximum flow, without a safe... Mar 2 2020, 11:49 AM 914_teener
As I thought...thats maximum flow, without a saf... Mar 2 2020, 12:58 PM GregAmy I'm confused. Flow and pressure are related h... Mar 2 2020, 01:19 PM 914_teener
I'm confused. Flow and pressure are related ... Mar 2 2020, 02:29 PM ChrisFoley
no problem running these at 36psi and putting in... Mar 2 2020, 05:56 PM GregAmy
Why even go up to 36? Calculate the flow at 30psi... Mar 2 2020, 06:54 PM JamesM Was poking around a bit and and found these inject... Mar 3 2020, 11:50 PM Bleyseng The Ljet has a variable fuel pressure regulator to... Mar 2 2020, 12:16 PM JeffBowlsby Hi Norbert, thank you for the Bosch list its very ... Mar 2 2020, 05:48 PM nordfisch
... The Weiss chart was a reference for me back t... Mar 3 2020, 02:00 PM JamesM Higher pressure provides better fuel atomization, ... Mar 3 2020, 03:46 PM 914_teener
Higher pressure provides better fuel atomization,... Mar 3 2020, 05:40 PM JamesM
I know some folds have done MS systems so maybe t... Mar 3 2020, 07:03 PM 914_teener
I know some folds have done MS systems so maybe ... Mar 3 2020, 08:17 PM GregAmy The OP didn't say if he was going to retain th... Mar 3 2020, 08:36 PM 914_teener
The OP didn't say if he was going to retain t... Mar 3 2020, 08:41 PM JamesM
Whole lotta dick-swinging around here and yet...n... Mar 3 2020, 11:09 PM JamesM
The concern about constant operation at maximum p... Mar 3 2020, 07:52 PM JamesM Just remembered I still have the paperwork for min... Mar 4 2020, 12:07 AM JamesM
What should be the maximum capability of the stoc... Mar 4 2020, 01:39 AM JamesM Hey, looky what I found....
https://www.injector... Mar 4 2020, 02:15 AM JamesM Found another picture of the MSD 2222 where you ca... Mar 4 2020, 02:48 AM GregAmy
Found another picture of the MSD 2222 where you c... Mar 5 2020, 10:08 AM JamesM
Found another picture of the MSD 2222 where you ... Mar 5 2020, 06:30 PM GregAmy Still has me curious why you are only seeing ~35.
... Mar 5 2020, 07:27 PM GregAmy Since we're going deeper into the design...
A... Mar 4 2020, 06:19 AM JamesM
Since we're going deeper into the design...
... Mar 5 2020, 12:29 AM GregAmy Eric, I'm actually starting to "write all... Mar 5 2020, 06:18 AM barefoot Many years ago I had a project to design automotiv... Mar 4 2020, 06:19 AM Montreal914
Though amazon is great and showed me this much c... Mar 5 2020, 12:05 AM JamesM
[quote name='JamesM' post='2791279' date='Mar 3 2... Mar 5 2020, 09:38 AM JeffBowlsby Check this.
"35 gal/hr"
Seems a bit ... Mar 5 2020, 08:14 AM JamesM
Check this.
"35 gal/hr"
Seems a bit... Mar 5 2020, 09:51 AM JeffBowlsby
Check this.
"35 gal/hr"
Seems a bit... Mar 5 2020, 11:03 AM GregAmy It's not the pump. I went out there, jumped th... Mar 5 2020, 07:46 PM ChrisFoley I have a few FPRs here. You're welcome to try ... Mar 6 2020, 06:38 AM GregAmy Thank you sir!We're already overdue for a ... Mar 6 2020, 07:58 AM JamesM
Thank you sir!We're already overdue for a... Mar 7 2020, 02:48 AM Montreal914 Just catching up on the thread this morning.
Greg... Mar 7 2020, 11:03 AM GregAmy Quick update... per Summit Racing, MSD has discont... Mar 9 2020, 11:40 AM JamesM Didn't have time to tear into one this weekend... Mar 9 2020, 11:05 PM JamesM Just did a bit more searching... this is an intere... Mar 10 2020, 12:09 AM JamesM Knowing that 914 l-jet regulators are a direct swa... Mar 10 2020, 12:27 AM JamesM This is interesting. In the latest bosch catalog ... Mar 10 2020, 01:22 AM JamesM https://shopbhp.com/products/kit-car-fuel-p...ant=... Mar 10 2020, 01:49 AM GregAmy May be more bad news for d-jet
Well crap.
I have ... Mar 10 2020, 06:45 AM JamesM
May be more bad news for d-jet
Well crap.
I have... Mar 10 2020, 09:07 AM ChrisFoley Bosch Fuel Pressure Regulator at Pelican Mar 9 2020, 02:26 PM GregAmy And...they're out of stock. Refers me to ... Mar 9 2020, 04:21 PM ChrisFoley You might want to start soaking the three used one... Mar 9 2020, 06:14 PM GregAmy Here's a 3-bar one. eBay ad claims (I think) i... Mar 10 2020, 07:31 AM GregAmy Am I correct in inferring his non-regulator one is... Mar 10 2020, 09:24 AM JamesM
Am I correct in inferring his non-regulator one i... Mar 10 2020, 01:13 PM GregAmy Mario's response, paraphrased:
This:
Univers... Mar 10 2020, 07:14 PM ChrisFoley That's probably what Mario was thinking you wo... Mar 10 2020, 12:20 PM GregAmy His stuff looks nice, but I sent an email him to f... Mar 10 2020, 12:59 PM Montreal914 Seems like the way to go! Mar 10 2020, 09:50 PM GregAmy Mario 3-bar FPR procured and installed. Shows 41.5... Mar 13 2020, 07:52 PM ChrisFoley
Asking for a friend. :miles:
:shades2: Mar 14 2020, 05:49 AM |
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