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Doug Siegel
 
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Location: Bloomington, IN
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cold pressure- warm up regulator

I'm testing the fuel pressure for the cold start setting on a Warm up regulator- 88' 930. Anyone have the specs? Thanks...
Old 03-10-2008, 08:20 PM
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Send a message via AIM to Chuck Jones
You might give Brian Leask a PM....he makes the adjustable WUR's and is as savy as anyone on the subject.
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Old 03-10-2008, 11:08 PM
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Crotchety Old Bastard
 
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The cold pressure scale for the '88 should not be significantly different than that of the earlier cars with the same 054 WUR. The scale slides with temperature.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 03-11-2008, 05:59 AM
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Macht Schnell
 
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Quote:
Originally Posted by RarlyL8 View Post
The cold pressure scale for the '88 should not be significantly different than that of the earlier cars with the same 054 WUR. The scale slides with temperature.
Hi Brian,
You adjust for the air temp that day, and there is a temp compensating mechanism that adjusts cold pressures later depending on ambient temp? Where does it get it's temp reference?

Les
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---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT
Old 03-11-2008, 01:35 PM
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Crotchety Old Bastard
 
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The temperature adjustment function is done mechanically with a bi-metal strip referencing ambient temps. Once the cold engine is started an electrical current heats the strip which moves against the diaphragm increasing the fuel pressure as it warms. Once warm the engine heat then keeps the strip maxed out.
You check the cold pressure readings against the chart of ambient temp vs pressure range and adjust to the middle of the range using that one data point reference. Once set the pressure should reamin in spec throughout the cold range. If not the bi-metal strip may be worn out, damaged, or out of alignment.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 03-11-2008, 01:51 PM
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Macht Schnell
 
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Quote:
Originally Posted by RarlyL8 View Post
The temperature adjustment function is done mechanically with a bi-metal strip referencing ambient temps. Once the cold engine is started an electrical current heats the strip which moves against the diaphragm increasing the fuel pressure as it warms. Once warm the engine heat then keeps the strip maxed out.
You check the cold pressure readings against the chart of ambient temp vs pressure range and adjust to the middle of the range using that one data point reference. Once set the pressure should reamin in spec throughout the cold range. If not the bi-metal strip may be worn out, damaged, or out of alignment.

Is the strip inside the WUR?

Les
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---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT
Old 03-11-2008, 01:57 PM
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Crotchety Old Bastard
 
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Yes
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 03-11-2008, 02:08 PM
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I just sent off my WUR to Brian Leask yesterday to have him make it fully adjustable.

I'm putting together my own RPM activated switch and vacuum solenoid in to make it so I can set what rpm the WUR/control pressure regulator will recieve boost pressure from the throttle body port for boost fuel enrichment.
Since I put in a modified fuel head a couple months ago the midrange is too rich, so hopefully this will remedy that.

Now it's a good time for me to finally install my rennaire R134 AC upgrade kit while the car is down.
Old 03-12-2008, 01:41 PM
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DPHANS
 
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Quote:
Originally Posted by dsiegel360 View Post
I'm testing the fuel pressure for the cold start setting on a Warm up regulator- 88' 930. Anyone have the specs? Thanks...
Hi, Download from my home page. the Bosch CIS work shop manual . 177 meg
(right click to save)
http://www.garagecare.se/
BR
DPHANS
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Old 03-13-2008, 11:49 AM
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Macht Schnell
 
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Quote:
Originally Posted by DPHANS View Post
Hi, Download from my home page. the Bosch CIS work shop manual . 177 meg
(right click to save)
http://www.garagecare.se/
BR
DPHANS
Hans,

Tackar så mycket !!

I've thought about the fact I didn't have that publication for a while now. It's nice having it in a form I can access from a web interface.
You PIX of the DP's are awesome also.


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---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT
Old 03-13-2008, 12:57 PM
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file damaged ?

cannot download the file ( right click, save as)

each timeget a message "the file is damaged and can not be repaired"

anyone else having this problem ?

thks
Old 04-10-2008, 04:24 AM
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Doug Siegel
 
Join Date: Oct 2007
Location: Bloomington, IN
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I downloaded it last week.
Old 04-10-2008, 04:29 AM
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