Rising Rate Fuel Pressure Regulator - 3000GT/Stealth International Message Center
3000GT/Stealth International 3000GT/Stealth International
 

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   3000GT/Stealth International Message Center > Modifications and Technical Support > Engine - Turbo

3SI.org is the premier Mitsubishi 3000GT Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 04-13-2004, 07:55 PM   #1 (permalink)
Velocity Algorithms
 
SMTCapeCod's Avatar
 
Join Date: Jan 2004
Location: Cape Cod
Drives: 2004 Pontiac GTO
SMTCapeCod is an unknown quantity at this point
Feedback Score: 11 reviews
Default Rising Rate Fuel Pressure Regulator

Is anyone using one, and how is it working out?

Looking for information on rising rate regulators, not the adjustable fixed-rate units.

Thanks
ST
SMTCapeCod is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 04-13-2004, 08:08 PM   #2 (permalink)
Ninja Performance
 
Import Power's Avatar
 
Join Date: Jan 2002
Location: Behind the Wheel
Drives: Vicki Insane
Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4
Feedback Score: 223 reviews
Default Re: Rising Rate Fuel Pressure Regulator

Quote:
Originally Posted by SMTCapeCod
Is anyone using one, and how is it working out?

Looking for information on rising rate regulators, not the adjustable fixed-rate units.

Thanks
ST
Our stock ones are Rising Rate. 1:1
Many are using SX regs which are also rising rate 1:1. You have to use a 1:1 on a FI car otherwise your fuel pressure would not rise with plenum pressure and you would run out of fuel.

Options for adding aftermarket FPRs
__________________
My battle with Multiple Myeloma/Non Curable Blood Cancer

91VR4-3.0L-Stock heads and Cams-835AWHP 747AWTQ Daily Driver 10.31@142mph on street tires
SLTT-10.9 @ 142MPH Stock NA engine and NA heads/Cams

T4 AWD 9.21 @ 154.98 (Chris Hill Driver/Builder/Tuner Car Owned by 3SX)
T2 FWD 10.19 @ 140.31 (Chris Hill Driver/Builder/Tuner Car Owned by 3SX)
T4-159.23 MPH Ran on 6G72 3.1L! (Chris Hill Driver/Builder/Tuner Car Owned by 3SX)
T4-995AWHP Uncorrected 6G72 3.0L C16 (Chris Hill Driver/Builder/Tuner Car Owned by 3SX)
T2-820FWHP 3.1L 27psi C16 (Chris Hill Driver/Builder/Tuner Car Owned by 3SX)

3000GT/Stealth Drag and Dyno Database
Import Power is offline   Reply With Quote Quick reply to this message
Old 04-13-2004, 08:10 PM   #3 (permalink)
93V
VR4-less
 
93V's Avatar
 
Join Date: May 2002
Location: Lake Hopatcong, NJ
Drives: 94 Supra
93V is an unknown quantity at this point
Feedback Score: 23 reviews
Default Re: Rising Rate Fuel Pressure Regulator

not sure what you mean man

the adjustable ones are also rising rate because you attach a vacuum hose to them

i set mine at the 43psi or whatever at idle, and the vacuum line brings it up under boost

works the same way as a stock one, except obviously if you have different fuel/engine setups you can change pressure instead of having a fixed spring pressure like stock, and you can fit larger fuel lines through the better pressure regulators
93V is offline   Reply With Quote Quick reply to this message
Old 04-13-2004, 09:30 PM   #4 (permalink)
Velocity Algorithms
 
SMTCapeCod's Avatar
 
Join Date: Jan 2004
Location: Cape Cod
Drives: 2004 Pontiac GTO
SMTCapeCod is an unknown quantity at this point
Feedback Score: 11 reviews
Default Re: Rising Rate Fuel Pressure Regulator

Hoo boy.

OK, a rising rate fuel pressure regulator steps up the fuel pressure at a greater ratio proportional to increased vaccum or boost (typically). So you have an OEM idle, but as demand on the engine increases it hikes the pressure at a greater rate than the baseline vacuum or boost signal...so your richer at higher demand.

For more info, you can look at Performanceproducts.com (For Porsche applications), search for FSE Boost Valve (primarily in UK due to emissions regs in US) or Cartech tuning.
SMTCapeCod is offline   Reply With Quote Quick reply to this message
Old 04-13-2004, 09:33 PM   #5 (permalink)
Ninja Performance
 
Import Power's Avatar
 
Join Date: Jan 2002
Location: Behind the Wheel
Drives: Vicki Insane
Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4
Feedback Score: 223 reviews
Default Re: Rising Rate Fuel Pressure Regulator

Quote:
Originally Posted by SMTCapeCod
Hoo boy.

OK, a rising rate fuel pressure regulator steps up the fuel pressure at a greater ratio proportional to increased vaccum or boost (typically). So you have an OEM idle, but as demand on the engine increases it hikes the pressure at a greater rate than the baseline vacuum or boost signal...so your richer at higher demand.

For more info, you can look at Performanceproducts.com (For Porsche applications), search for FSE Boost Valve (primarily in UK due to emissions regs in US) or Cartech tuning.
Stock FPRs are rising rate. a 1:1 rising rate. You can also have a higher rise rate of 2:1 or 3:1 but they are all rising rate FPRs.
Import Power is offline   Reply With Quote Quick reply to this message
Old 04-13-2004, 11:16 PM   #6 (permalink)
93V
VR4-less
 
93V's Avatar
 
Join Date: May 2002
Location: Lake Hopatcong, NJ
Drives: 94 Supra
93V is an unknown quantity at this point
Feedback Score: 23 reviews
Default Re: Rising Rate Fuel Pressure Regulator

regardless...never heard of anyone using them on our cars at all
93V is offline   Reply With Quote Quick reply to this message
Old 04-13-2004, 11:21 PM   #7 (permalink)
Ninja Performance
 
Import Power's Avatar
 
Join Date: Jan 2002
Location: Behind the Wheel
Drives: Vicki Insane
Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4
Feedback Score: 223 reviews
Default Re: Rising Rate Fuel Pressure Regulator

Quote:
Originally Posted by 93V
regardless...never heard of anyone using them on our cars at all
Huh? Like I stated twice, it IS what is used in our cars. It is what is in every TT car from the factory. A 1:1 Rising rate FPR. As are the aftermarket ones like SX Performance that we replace the stockers with, 1:1 Rising rate FPR. They are nothing new and we (FI) all have them.
Import Power is offline   Reply With Quote Quick reply to this message
Old 04-13-2004, 11:26 PM   #8 (permalink)
Forum Member
 
RobBeck's Avatar
 
Join Date: May 2002
Location: Missouri
RobBeck is an unknown quantity at this point
Feedback Score: 253 reviews
Default Re: Rising Rate Fuel Pressure Regulator

I was wondering this myself. But from what I have seen it doesnt seem to many people use them around here. Most people who use them seem to be those with other platforms who have NON Forced Induction ECUs from the get go and use them for safer tuning... or those who just like running really rich under boost. Most people here tune via the standard 1:1 ratio with little problems... but maybe the FMU could be an asset to our cars... especially for those keeping stock injectors and do NOT wish to swap them... but wish to run higher boost With the FMU you could in theory run say 100psi or more under full boost, and your 360cc injectors would act as a bigger one... perhaps over 500cc... there are calculations to figure that all out tho. Most people just opt for bigger injectors and 1:1 rising rate regulators. Youre call.

Rob

Quote:
Originally Posted by SMTCapeCod
Is anyone using one, and how is it working out?

Looking for information on rising rate regulators, not the adjustable fixed-rate units.

Thanks
ST
__________________
RobBeck is offline   Reply With Quote Quick reply to this message
Old 04-13-2004, 11:31 PM   #9 (permalink)
Ninja Performance
 
Import Power's Avatar
 
Join Date: Jan 2002
Location: Behind the Wheel
Drives: Vicki Insane
Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4Import Power Level 4
Feedback Score: 223 reviews
Default Re: Rising Rate Fuel Pressure Regulator

Quote:
Originally Posted by RobBeck
I was wondering this myself. But from what I have seen it doesnt seem to many people use them around here. Most people who use them seem to be those with other platforms who have NON Forced Induction ECUs from the get go and use them for safer tuning... or those who just like running really rich under boost. Most people here tune via the standard 1:1 ratio with little problems... but maybe the FMU could be an asset to our cars... especially for those keeping stock injectors and do NOT wish to swap them... but wish to run higher boost With the FMU you could in theory run say 100psi or more under full boost, and your 360cc injectors would act as a bigger one... perhaps over 500cc... there are calculations to figure that all out tho. Most people just opt for bigger injectors and 1:1 rising rate regulators. Youre call.

Rob
That would be very bad. You do not want to run injectors intended for a base pressure of 43.5 at 100PSI.
Import Power is offline   Reply With Quote Quick reply to this message
Old 04-13-2004, 11:38 PM   #10 (permalink)
Forum Member
 
RobBeck's Avatar
 
Join Date: May 2002
Location: Missouri
RobBeck is an unknown quantity at this point
Feedback Score: 253 reviews
Default Re: Rising Rate Fuel Pressure Regulator

First off that was an example and second off how do you know? It is done all the time... it seems to me you have very limited knowledge on this topic all together by your prior responses.... just because it isnt ideal or the norm doesnt mean it is bad or not gonna work. Many other platforms use this method... we just dont because I guess nobody knows its possible and think 1:1 is all thats out there and no reason to deviate. It WORKS fine, maybe not atomized as ideal as it would or could be.... but nevertheless it is completely feasible. I have heard of people running as high as 120psi across their injectors using FMUs with no ill effects aside from more fuel.

Rob

Quote:
Originally Posted by Imp Pwr Online
That would be very bad. You do not want to run injectors intended for a base pressure of 43.5 at 100PSI.
RobBeck is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

  3000GT/Stealth International Message Center > Modifications and Technical Support > Engine - Turbo

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the 3000GT/Stealth International Message Center forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Free email addresses do not work(yahoo, hotmail, gmail,...)
We are currently being blocked by AOL so any AOL based address may not work(aol.com, aim.com, netscape.net, cs.com)
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 01:31 AM.




Garage Plus vBulletin Plugins by Drive Thru Online, Inc.

Search Engine Optimization by vBSEO 3.3.2