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#91031355
$43.99
/each
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Knob Adjustable Proportioning Valve Type, Aluminum
| Proportioning Valve Type | Knob Adjustable |
| Port Quantity | 2-Port |
| Material Type | Aluminum |
| Finish | Anodized |
| Color | Black |
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Return PolicyAllows easy adjustment of front to rear brake bias. Universal design works on all race cars. 100 to 1500 psi range, up to 57% pressure reduction. Uses 1/8" NPT fittings.
Compensates for weight transfer to the front wheels during braking. All factory brake systems allow for this in some fashion. An APV allows you to "fine tune" a street or race brake system (which normally uses components from a variety of sources) and thus prevents severe rear brake lockup under moderate-to-heavy braking.
(pdf)
Charts
910-31355 Instructions (PDF)
910-31355 Instructions (PDF)
Guides & Documents
CA WARNING:
Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov
| KEY SPECS | |
|---|---|
| MFG. Part # | 91031355 |
| Brand | Speedway Motors |
| Proportioning Valve Type | Knob Adjustable |
| Port Quantity | 2-Port |
| Material Type | Aluminum |
| Finish | Anodized |
| Color | Black |
| GENERAL | |
| Thread Pitch | 1/8" NPT |
| Overall Length | 4.25" |
| Overall Width | 1.25" |
| Overall Thickness | 1.64" |
| Centerline of Holes | 1.00" |
| Notes | Includes (2) 1/8" NPT to 3/8"-24 IFF adapters. |
4.8
18 Reviews
Our product has consistently received positive remarks for its high quality, ease of use, and practicality. While one user mentioned a minor issue with a rubber O-ring, the general consensus is that any minor setbacks do not detract from its overall performance. Many customers have found it highly beneficial for a range of vehicles, from the '95 ranger to drum brakes, highlighting its versatility. Furthermore, it has compared favorably against alternatives, with one customer explicitly mentioning it met their requirements over other products. Some customers needed to make minor adjustments, but it didn't impact their willingness to buy again due to the product's superior contribution to their brake system upgrade. Users praise its straightforward use, indicating our product is user-friendly.
4.8
18 reviews
5
15
4
2
3
1
2
0
1
0
Most Liked Positive Review
5.0
Amazing
Used it on my 95 ranger that has a dodge ram 2500 master and an explorer 8.8. https://youtube.com/shorts/73ony2C00Wo?feature=share
Most Liked Negative Review
3.0
I would buy again.
I had to tighten the large nut holding this thing together, but I didn't expect it to be loose. It costs me extra time bleeding the brakes and a mess on the floor.
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Exactly what my build needed
5.0
a month ago
BW
Yuma
Verified
This bolts right up to the c5 booster I'm putting in my 1968 camaro build. Looks way better than the c5 plastic master
Nicely Engineered Product!
4.0
a month ago
dean
Land O Lakes, Fl
Verified
The valve has an ability to be mounted securely. However, it would be nice if there were valves available with inlet and outlet ports on the same side for flexibility.
Would Recommend
Brake proportioning valve. Good price and good quality
5.0
3 months ago
Estodo
Port Hueneme, CA
Verified
Worked as described and able to mount it remotely.
Would Recommend
I would buy this again
5.0
4 months ago
Carpoor
Grants pass OR
Verified
Haven't driven the car yet but directions are straight forward.
Would Recommend
Makes Brakes Great Again
5.0
4 months ago
Tuna
Des Moines IA
Verified
Installed the proportioning valve and my brakes bled as intended.
Would Recommend
Works as intended
5.0
5 months ago
Bob
Idaho Falls
Verified
I've used a few of these on different projects and it works as it's supposed to. Especially on vehicles that are light in the back.
Would Recommend
Would buy again
5.0
7 months ago
M
Frisco TX
Verified
Fit as intended
Works Great
5.0
8 months ago
Joe
Northwest Arkansas
Verified
Did just what I needed, allowed me to adjust the brakes on my OBS so that the back brakes did not lock up.
Would Recommend
I would buy this again
5.0
10 months ago
Lawnbouy
Alberta Canada
Verified
Simple install
Would Recommend
I WOULD BUY THIS AGAIN
5.0
11 months ago
SAM
DALLAS
Verified
WELL BUILT , COMPACT - COMES WITH BRAKE LINE FITTINGS WHICH IS A PLUS. WORKS AS SHOULD WITH NO LEAKS
Would Recommend
Showing 10 of 18 reviews
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