Клапани Audi A8 S4 RS6 4.2 40V V8

Intake valves made of high-strength steel for all Audi R8 V8 4.2L FSI engines.

The Audi R8 standard valves have the major disadvantage that they can break in engines with a power increase or with long mileage. The standard valves are internally hollow and sodium-cooled. With the very thin valve stem, there is not much material left to protect the valve!

Valves made from high-strength steel offer the following advantages:

• High temperature resistance
• Strong tear resistance
• Heat-treated material
• High-strength steel
• Quality and workmanship at the highest level

Available in original size or 1mm oversize.

The kit contains 16 valves.

With 1mm oversize valves, the valve seat must be adapted.

Ferrea is also used in major racing series such as Formula 1, Indy, Nascar and drag racing.

Original BAR-TEK: Sport-valve springs-set for 4.0L TFSI engines like in Audi S6 & RS6

Racing feeling for tuning fans: Our original BAR-TEK sport valve springs set made of high-quality tempered steel with titanium spring discs. Suitable for all 4.0L TFSI engines as installed in the Audi S6, RS6, S7, RS7 and S8.

These valve springs have an extra adapted spring rate and ensure a faster and better response behaviour of your 4.0L TFSI engine. The spring retainer made of titanium enable a lighter valve drive, more boost pressure and higher revs are no longer a problem. The stability is perfect for very high revs and makes driving your RS6 a lot of fun.

More boost pressure or sports camshafts: Now you need our 4.0L sports camshafts valve springs

Our sports valve springs are necessary as soon as more boost pressure is driven or when other camshafts are installed. Unfortunately, the original springs often break or the valves do not close properly. Both problems lead to major engine damage!

Features:

• Better and faster response behaviour
• Higher engine speed possible
• Easier valve drive due to titanium disc
• Absolutely stable for high engine speeds
• More boost pressure possible
• Up to 70PS & 70NM more with Stage 1

Included in the kit:

• 32 valve springs made from high-quality tempered steel
• 32 valve spring retainers made from high-quality titanium

We recommend this valve springs kit for 4.0L TFSI engines with modified camshafts and/or for upgrade turbochargers with more boost pressure.

Picture similar. Picture shows 4 cylinder spring kit

Super Alloy exhaust valves for all Audi R8 V8 4.2L FSI engines.

The standard valves in the Audi R8 have the major disadvantage that they can break in engines with a power increase or with long mileage. The standard valves are hollow and sodium-cooled on the inside. With the very thin valve stem of only 6 mm, there is not much material left to protect the valve!

The Super Alloy exhaust valves offer the following advantages:

• High temperature resistance
• Strong tear resistance
• Special heat-treated material
• High strength material
• Quality and workmanship at the highest level

Super Alloy valves are made from an extremely heat-resistant alloy.
The valves are suitable for engines with turbocharging and nitrous oxide injection where high exhaust temperatures are used.

With 1mm oversize valves, the valve seat must be adapted.

The kit contains 16 valves.

Ferrea is also used in major racing series such as Formula 1, Indy, Nascar and drag racing.

Part number KPR-6S-7Supertech 6mm single groove valve keeper (lock)Price is for 1 pc. (2 pcs. needed for one valve)For:Renault Megane - 2.0 16V (F4RT)Opel / Vauxhall - 2.0 16V (Z20LET/LEH)Audi / VW - 1.8T 2.4 2.7T 2.8 3.0 (5V/cyl.)BMW - M42, S42, M50, M52, M54, S50 (USA), S52 (USA), S54Toyota - 3.0 2JZGTE 2JZGE

Part number VS-VBM6I. Supertech intake valve seal for 6mm valve stem. For:Opel / Vauxhall - 2.0 16V (Z20LET/LEH)Audi / VW - 1.8T 2.4 2.7T 2.8 3.0 (5V/cyl.)BMW - M42, S42, M50, M52, M54, S50 (USA), S52 (USA), S54

Part number VS-VBM6E. Supertech exhaust valve seal for 6mm valve stem. For:Opel / Vauxhall - 2.0 16V (Z20LET/LEH)Audi / VW - 1.8T 2.4 2.7T 2.8 3.0 (5V/cyl.)BMW - M42, S42, M50, M52, M54, S50 (USA), S52 (USA), S54

Product detailed specification Model number AIVN-1206S Head diameter 27.90mm Stem diameter 5.95mm Length 96.55mm Material Black nitrided stainless steel Fits for Audi A8, S4, RS6 (2003-2008) - 4.2 40V V8

Product detailed specification Model number AEVI-1206S Head diameter 30.90mm Stem diameter 5.94mm Length 94.80mm Material Inconel Fits for Audi A8, S4, RS6 (2003-2008) - 4.2 40V V8

Spring data:Seat pressure: intake - 56lbs @ 36.60mm, exhaust - 75lbs @ 33.70mmSpring coil bind: intake - 23.00mm, exhaust - 19.50mmMax lift: intake - 13.60mm, exhaust - 14.20mmRate: intake - 6.70lbs/mm, exhaust - 10.00lbs/mmIntake single spring:Outer diameter - 20.60mmInner diameter - 14.40mmExhaust double spring:Outer spring outer diameter - 29.10mmOuter spring inner diameter - 21.90mmInner spring outer diameter - 20.50mmInner spring inner diameter - 15.50mmSet includes:Intake springs - 24 pcs. SPR-A2095Exhaust springs - 16 pcs. SPR-H1002D-AUTitanium retainers: 24 pcs. intake RET-AU5VI-T2, 16 pcs. exhaust RET-AU5VE-T4Seats - 16 pcs. exhaust SEAT-H1000