Supertech Uprated Valves + Perrin Lightweight Crank Pulley
20 December 2007, 01:05 PM
#1
Supertech Uprated Valves + Perrin Lightweight Crank Pulley
Some spare parts from my recent build.
Boxed and brand new.
Supertech Performance Valves
- High Flow Rates
- Less Friction
- More Power
- Featuring Black Nitrided Treatment!
Supertech Extreme Flow Performance Valves for Pro Street and Racing are engineered for High RPM and High HP. Extreme Flow Valves outperform any other valve on the market today, and with their Nitride Coating are perfect for High Temperatures (and run cooler which improves value life), Nitrous, Turbos and Superchargers. For naturally aspirated motors these valves will give you a much greater cylinder flow for good HP gains.
Manufacturing/Description
Intake and Exhaust Valves are One Piece Forged, High Temperature, High Nickel, Stainless Steel Alloy. Valves are CNC finished to strict tolerances making these valves the choice for the most demanding race classes.
Black Nitride (Coating)
The micro-hardness is higher than the stainless steel base material, keeping good ductility beneath the hard nitrided layer (micro-hardness is 800HV minimum). Surface finish is smoother than with chromed stems, having less friction between stem and guide. ---
Valve seat surface is harder with the nitrided layer, lasting longer with lead free fuels, alcohols, nitro or other "explosive" mixes. Matches any kind of seats (nodular iron seats, steel powder metal seats, hard aluminum-copper seats or beryllium copper seats). ---
The higher the engine speed the bigger the power loss due to internal engine friction! The black nitride layer reduces this power loss due to less valve-guide friction.
The nitrided layer is adhered to the base material at a microscopic level, so does not "flake" or brake when the valves bend due to impacts with the pistons. ---
The Black Nitride applies to the whole valve while the chrome coating is only applied to the stem. All valves are swirl polished, have stem undercut and a hardened tip
Part numbers:
SIVN-1012/2 Subaru 2.0L /WRX
36.5x5.96x103.85mm/SS/Black Nitrided/backcut./ +0.5mm head diam./ Length and groove are 0.5mm lower than stock - Intake
SEVN-1012/2 Subaru 2.0L /WRX
32.5x5.96x104.20mm/SS/Black Nitrided/ +0.5mm head diam./ Length and groove are 0.5mm lower than stock - Exhaust
FULL SET, BRAND NEW AND BOXED. £220 +£5 delivery.
Made from 6061T6 aluminum and weighing in at 1.2lbs, the PERRIN pulley is more then 4 lbs lighter then the stock crank pulley. The PERRIN pulley is not under driven and will not affect the life of your engine. The pulley is a redesigned, lighter rendering of the stock crank pulley.Aftermarket, under driven, pulleys are prone to charging and drivability problems from being excessively under driven. The PERRIN Performance lightened crank pulley will have no effect on your cars charging system.The PERRIN Performance pulley achieves power and performance by reducing the rotating mass of the crank assembly.That reduction is effectively the same as removing 100 pounds of weight from your vehicle. The PERRIN Performance pulley will not wear out engine bearings or the oil pump, and will not add any additional vibration or noise
BRAND NEW AND BOXED - *SOLD*
Please PM me
Boxed and brand new.
Supertech Performance Valves
- High Flow Rates
- Less Friction
- More Power
- Featuring Black Nitrided Treatment!
Supertech Extreme Flow Performance Valves for Pro Street and Racing are engineered for High RPM and High HP. Extreme Flow Valves outperform any other valve on the market today, and with their Nitride Coating are perfect for High Temperatures (and run cooler which improves value life), Nitrous, Turbos and Superchargers. For naturally aspirated motors these valves will give you a much greater cylinder flow for good HP gains.
Manufacturing/Description
Intake and Exhaust Valves are One Piece Forged, High Temperature, High Nickel, Stainless Steel Alloy. Valves are CNC finished to strict tolerances making these valves the choice for the most demanding race classes.
Black Nitride (Coating)
The micro-hardness is higher than the stainless steel base material, keeping good ductility beneath the hard nitrided layer (micro-hardness is 800HV minimum). Surface finish is smoother than with chromed stems, having less friction between stem and guide. ---
Valve seat surface is harder with the nitrided layer, lasting longer with lead free fuels, alcohols, nitro or other "explosive" mixes. Matches any kind of seats (nodular iron seats, steel powder metal seats, hard aluminum-copper seats or beryllium copper seats). ---
The higher the engine speed the bigger the power loss due to internal engine friction! The black nitride layer reduces this power loss due to less valve-guide friction.
The nitrided layer is adhered to the base material at a microscopic level, so does not "flake" or brake when the valves bend due to impacts with the pistons. ---
The Black Nitride applies to the whole valve while the chrome coating is only applied to the stem. All valves are swirl polished, have stem undercut and a hardened tip
Part numbers:
SIVN-1012/2 Subaru 2.0L /WRX
36.5x5.96x103.85mm/SS/Black Nitrided/backcut./ +0.5mm head diam./ Length and groove are 0.5mm lower than stock - Intake
SEVN-1012/2 Subaru 2.0L /WRX
32.5x5.96x104.20mm/SS/Black Nitrided/ +0.5mm head diam./ Length and groove are 0.5mm lower than stock - Exhaust
FULL SET, BRAND NEW AND BOXED. £220 +£5 delivery.
Made from 6061T6 aluminum and weighing in at 1.2lbs, the PERRIN pulley is more then 4 lbs lighter then the stock crank pulley. The PERRIN pulley is not under driven and will not affect the life of your engine. The pulley is a redesigned, lighter rendering of the stock crank pulley.Aftermarket, under driven, pulleys are prone to charging and drivability problems from being excessively under driven. The PERRIN Performance lightened crank pulley will have no effect on your cars charging system.The PERRIN Performance pulley achieves power and performance by reducing the rotating mass of the crank assembly.That reduction is effectively the same as removing 100 pounds of weight from your vehicle. The PERRIN Performance pulley will not wear out engine bearings or the oil pump, and will not add any additional vibration or noise
BRAND NEW AND BOXED - *SOLD*
Please PM me
Last edited by Aztec Performance Ltd; 21 December 2007 at 05:59 PM.
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30 December 2007, 01:42 PM
#8
All fitted now - Looks understated and being the same size as the original it wont have any underdriven problems.
The std pulley is 3kgs in weight and this weighs 550 grams so a 2.5kg saving in rotating mass .... nice
free bttt for the valves
The std pulley is 3kgs in weight and this weighs 550 grams so a 2.5kg saving in rotating mass .... nice
free bttt for the valves
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