boost reference regulator?

01-06-2002, 10:48 AM

hey guys,

ive heard many times of a 'boost referenced regulator". what does this consist of...

a) special regulator
or
b) simply pulling vacuum (for the regulator you have) from a different location?

FWIW i have a Paxton adjustable on there now.
also, does boost referencing relieve any other problems, or what does it do for ya?

------------------
'93 Lightning
-all the bolt-ons
-Jacobs ignition
-full exhaust
-Level 10 tranny
-TFS Stage II heads
-Kenne Bell Blowzilla
-357 Long-Rod on the brain...

if i stop runnin, the evil little clowns will get me...

01-06-2002, 12:34 PM

Most aftermarket FPR will boost the fuel presure up 1 psi for 1# of boost

Jerry

------------------
Black 94 #555
NLOC #692
Intercooled Novi 2000
EEC Tuner
531 rwhp

mailto:gjls@home.comgjls@home.com</A>

01-06-2002, 12:42 PM

I've been blabbering about this one.....

http://www.cartech.net/fmu2020.html

I guess NASA inspired the look

------------------
Thanks,
Raymond
Performance Specialties
01 Cobra
95 Lightning (lots O' mods faster than the Cobra)

01-06-2002, 12:47 PM

arrrgh...

01-06-2002, 12:51 PM

Well come on Ray, don't drop us there!
Tell us how does it work, who running it? Is it better that that Super FMU thing? Give us the low down
Steve

01-06-2002, 02:28 PM

dam Ray...$259!!! ack.

01-06-2002, 02:51 PM

Raymond,

Can you describe how it works and better yet, the pros and cons of it?

Thanks,

------------------
- Kevin
Black '94 #907

01-06-2002, 09:58 PM

I dunno........

Just thought it looked cool

Seriously though, that unit is just a more "refined" way of getting extra fuel to the engine in response to boost. I haven't used one yet, but I like being able to adjust both the rate of gain (like recal'ing a regular FMU) and I really like being able to adjust the onset of gain. That should give you a very smooth A/F ratio from no boost to boost.

As a note:
I was trudging through the Lightning code some more last night and I think I might have found a way to further richen up the A/F at WOT with the computer. But I'm not sure that totally eliminating the FMU or something like it is possible.

------------------
Thanks,
Raymond
Performance Specialties
01 Cobra
95 Lightning (lots O' mods faster than the Cobra)

01-06-2002, 10:01 PM

So would this get rid of the FPR on the fuel rail or just merely replace only the existing FMU?
Later
STeve

------------------
94 Crimson #2826
Born May 6, 1994
NLOC member #343
Team Powerdyne,
13.49@ 102mph
Wanting 12's
Home page: http://www.topworldmusic.com/greased/

01-06-2002, 10:53 PM

Thanks. I thought it looked cool, too.

Quote:

<font face="Verdana, Arial" size="2">Originally posted by Raymond_B:

As a note:
I was trudging through the Lightning code some more last night and I think I might have found a way to further richen up the A/F at WOT with the computer. But I'm not sure that totally eliminating the FMU or something like it is possible.</font>

Please keep us posted on this!

------------------
- Kevin
Black '94 #907

[This message has been edited by Thundrn_Lightning (edited 01-06-2002).]

01-06-2002, 11:06 PM

That one replaces an FMU.

Keep in mind too that it's not a necessity to replace the FMU, I just happen to think that when you need to have a mechanical device to raise pressure (meaning that you can't get the A/F right through the PCM or you have no electronic tuning aid) there are better alternatives. FMU's have been around a while, they're cheap and they do get the job done. If your FMU keeps you in a good A/F then WOT power might not be improved by this gizmo.

BUT people have asked for a better alternative or more adjustability I've pointed out the Cartech setup. To me that thing means no more disc kits, no spikes when boost comes on and generally a better tune up since it's very adjustable. Although some people might find all that extra adjustability a PITA

------------------
Thanks,
Raymond
Performance Specialties
01 Cobra
95 Lightning (lots O' mods faster than the Cobra)

01-07-2002, 10:22 AM

Muddie - On the Kenne Bell you can boost-reference your stock regulator by connecting it to the outlet side of the blower. This makes the regulator increase 1 psi fuel pressure to 1 psi boost pressure.

The reason for doing this is that the injector is having to fire against the boost pressure and a 1:1 increase keeps it basically at its calibration setting.

An FMU is also a "boost-referenced" regulator with an amplified rate of gain.

------------------
Later!
Jeff S.
NLOC #025, VP Gen 1s
Lightning #74 in '95 - Stroked and soon to be blown
Lightning #582 in '00 - Traded
1999 SVT Contour
1993 Probe GT - 15.36@89.7 stock daily driver

01-06-2002, 10:48 AM	#1 (permalink)
Muddmann Guest Posts: n/a View this user's gallery iTrader: / %	boost reference regulator? hey guys, ive heard many times of a 'boost referenced regulator". what does this consist of... a) special regulator or b) simply pulling vacuum (for the regulator you have) from a different location? FWIW i have a Paxton adjustable on there now. also, does boost referencing relieve any other problems, or what does it do for ya? ------------------ '93 Lightning -all the bolt-ons -Jacobs ignition -full exhaust -Level 10 tranny -TFS Stage II heads -Kenne Bell Blowzilla -357 Long-Rod on the brain... if i stop runnin, the evil little clowns will get me...

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01-06-2002, 12:34 PM	#2 (permalink)
GJLS Guest Posts: n/a View this user's gallery iTrader: / %	Most aftermarket FPR will boost the fuel presure up 1 psi for 1# of boost Jerry ------------------ Black 94 #555 NLOC #692 Intercooled Novi 2000 EEC Tuner 531 rwhp mailto:gjls@home.comgjls@home.com</A>

01-06-2002, 12:42 PM	#3 (permalink)
Raymond_B Guest Posts: n/a View this user's gallery iTrader: / %	I've been blabbering about this one..... http://www.cartech.net/fmu2020.html I guess NASA inspired the look ------------------ Thanks, Raymond Performance Specialties 01 Cobra 95 Lightning (lots O' mods faster than the Cobra)

01-06-2002, 12:47 PM	#4 (permalink)
Muddmann Guest Posts: n/a View this user's gallery iTrader: / %	arrrgh...

01-06-2002, 12:51 PM	#5 (permalink)
sstock Guest Posts: n/a View this user's gallery iTrader: / %	Well come on Ray, don't drop us there! Tell us how does it work, who running it? Is it better that that Super FMU thing? Give us the low down Steve

01-06-2002, 02:28 PM	#6 (permalink)
Muddmann Guest Posts: n/a View this user's gallery iTrader: / %	dam Ray...$259!!! ack.

01-06-2002, 02:51 PM	#7 (permalink)
Thundrn_Lightning Guest Posts: n/a View this user's gallery iTrader: / %	Raymond, Can you describe how it works and better yet, the pros and cons of it? Thanks, ------------------ - Kevin Black '94 #907

01-06-2002, 09:58 PM	#8 (permalink)
Raymond_B Guest Posts: n/a View this user's gallery iTrader: / %	I dunno........ Just thought it looked cool Seriously though, that unit is just a more "refined" way of getting extra fuel to the engine in response to boost. I haven't used one yet, but I like being able to adjust both the rate of gain (like recal'ing a regular FMU) and I really like being able to adjust the onset of gain. That should give you a very smooth A/F ratio from no boost to boost. As a note: I was trudging through the Lightning code some more last night and I think I might have found a way to further richen up the A/F at WOT with the computer. But I'm not sure that totally eliminating the FMU or something like it is possible. ------------------ Thanks, Raymond Performance Specialties 01 Cobra 95 Lightning (lots O' mods faster than the Cobra)

01-06-2002, 10:01 PM	#9 (permalink)
sstock Guest Posts: n/a View this user's gallery iTrader: / %	So would this get rid of the FPR on the fuel rail or just merely replace only the existing FMU? Later STeve ------------------ 94 Crimson #2826 Born May 6, 1994 NLOC member #343 Team Powerdyne, 13.49@ 102mph Wanting 12's Home page: http://www.topworldmusic.com/greased/

01-06-2002, 11:06 PM	#11 (permalink)
Raymond_B Guest Posts: n/a View this user's gallery iTrader: / %	That one replaces an FMU. Keep in mind too that it's not a necessity to replace the FMU, I just happen to think that when you need to have a mechanical device to raise pressure (meaning that you can't get the A/F right through the PCM or you have no electronic tuning aid) there are better alternatives. FMU's have been around a while, they're cheap and they do get the job done. If your FMU keeps you in a good A/F then WOT power might not be improved by this gizmo. BUT people have asked for a better alternative or more adjustability I've pointed out the Cartech setup. To me that thing means no more disc kits, no spikes when boost comes on and generally a better tune up since it's very adjustable. Although some people might find all that extra adjustability a PITA ------------------ Thanks, Raymond Performance Specialties 01 Cobra 95 Lightning (lots O' mods faster than the Cobra)

01-07-2002, 10:22 AM	#12 (permalink)
FMOS Racing Guest Posts: n/a View this user's gallery iTrader: / %	Muddie - On the Kenne Bell you can boost-reference your stock regulator by connecting it to the outlet side of the blower. This makes the regulator increase 1 psi fuel pressure to 1 psi boost pressure. The reason for doing this is that the injector is having to fire against the boost pressure and a 1:1 increase keeps it basically at its calibration setting. An FMU is also a "boost-referenced" regulator with an amplified rate of gain. ------------------ Later! Jeff S. NLOC #025, VP Gen 1s Lightning #74 in '95 - Stroked and soon to be blown Lightning #582 in '00 - Traded 1999 SVT Contour 1993 Probe GT - 15.36@89.7 stock daily driver