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FSE Power Boost Valve - Adjustable Fuel Pressure Regulator PBV42535 for Porsche 911 Carrera 3.6

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  • Faster Acceleration
  • Overcomes Flat Spots
  • Smoother idle speed
  • Direct replacement for your existing valve
Price £124.54 inc. VAT
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Seen it cheaper? We'll Beat/Match Prices
Make Porsche
Model 911 Carrera 3.6
Style Standard
Manufacturer FSE
Manufacturer Part PBV42535
Larkspeed Code 242PBV42535
Product Information
Delivery & Returns
  • Faster Acceleration
  • Overcomes Flat Spots
  • Smoother idle speed
  • Direct replacement for your existing valve

The Power Boost Valve is a high performance tuning part which replaces the original equipment valve (fitted to the vehicle).

The benefits of the Power Boost Valve can be outlined by drawing comparisons with the original equipment fuel valve in your vehicle:

The electric fuel pump supplies fuel at a high pressure to the fuel rail and injectors, which is then regulated by a fuel pressure control valve. Typically, the regulator is not adjustable and is pre-set to a 3 bar maximum pressure. At idle the fuel pressure valve reduces it by 0.5 bar down to approximately to 2.5 bar. When accelerating quickly from standstill the fuel pressure increases at a proportional rate retaining a lean fuel mixture strength as required by the E.E.C. However, the resultant effects of the standard valve means the throttle response is often lethargic, there are occasionally problems when driving at slow speeds and you may experience performance 'flat spots' when accelerating.

By replacing your valve with one of our fantastic Power Boost Valves you will experience the following benefits:

Firstly, this valve has an adjustable fuel pressure, effected by the movement of an adjustment screw on the crown of the unit.

New Power Boost Valves are pre-set with a maximum fuel pressure of 2.5, 3.0 or 3.5 bar, depending on the vehicle in question, and similarly the fuel pressure is reduced by 0.5 bar approximately at idle but that is where the similarities end.

On acceleration from standstill the Power Boost Valve fuel pressure will increase at 1.7 times the standard rate.

This will produce a healthy, strong fuel mixture strength which will instantly improve the drivability of your vehicle, giving:

Instant throttle response.

Removal of performance flat spots.

Faster acceleration.

Extra engine performance.

The regulator enhances engine performance on acceleration by enriching the mixture strength. On constant throttle and cruise conditions the valve returns to a normal regulator function.

The Power Boost Valve is simple to install and in most instances basic fitting instructions are provided. These units are mechanical and are considered maintenance free.

The easiest way to order from Larkspeed is via our secure online ordering system. We accept most major credit and debit cards except American Express. We also accept PayPal.

Please ensure that you provide us with a valid telephone number and email address so that we can contact you about your order if necessary. Please also ensure that you fill in your vehicle details so that we know what car you are ordering for.

Once an order has been placed successfully, you will receive an automated response via email. If you do not receive an automated email from our website, this could mean that your payment has not been successful – in if doubt, please contact us on sales@larkspeed.com or 0113 264 3231


Location Weight Price
UK Mainland Up to 2kg £5.95
UK Mainland Over 2kg £10

Mainland UK shipping does not cover Highlands and Islands and selected postal areas. The Postal Code areas listed below will in some cases incur extra postage charges.

AB31-38, AB40-56, All BT Postal Codes, All HS Postal Codes, All IM Postal Codes, IV1-28, IV30-32, IV36, IV40-49, IV51-56, IV63, KA27-28, KW1-17, PA20-38, PA41-49, PH4-44, PH49-50, All ZE Postal Codes, All Channel Islands and all Republic of Ireland addresses

For shipments up to 30kg

Location Price
Highlands/Islands/Selected Postal Areas £20
Andorra £55
Austria £45
Belgium £40
Channel Islands £35
Croatia £55
Czech Republic £55
Denmark £55
Estonia £55
Finland £55
France £40
Germany £50
Greece £55
Hungary £55
Ireland £30
Isle of Man £30
Italy £55
Latvia £55
Netherlands £50
Northern Ireland £30
Norway £75
Poland £70
Slovakia (Slovak Republic) £55
Slovenia £55
Spain £55
Sweden £45
Switzerland £65

Telephone Ordering

If you prefer, you can also order via telephone on 0113 264 3231

For customers outside of the UK, please dial +44 113 264 3231

Email Ordering

Customers outside of the UK can email orders to sales@larkspeed.com. When payment is required, we can email you a secure card payment link or a PayPal invoice.

Worldwide Shipping

We can ship virtually every item on our website to almost every part of the world. However, the website can not calculate shipping for all countries, particularly where we need to ship via Air (generally outside of Europe). If the website is not calculating shipping automatically for you, then please email us for a shipping quote on sales@larkspeed.com

Deducting VAT

Please note that we can remove the VAT for all customers outside of the EU, and also for customers within the EU with a valid EU VAT Number.

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