camshaft search :
custom valve spring retainers
NOW AVAILABLE: custom spring retainers and spring seats with 16pcs minimum quantity
New profiles for VAG 2.0-litre TFSI engines
New profiles for highly tuned VAG 2.0-litre TFSI engines, proven to gain over 70 bhp
Audi 1.8T for DIY fitment
New version of market leading Audi / VW 1.8T, 20-valve Sports camshafts available with fixed timing sprockets for DIY install
Renault F4R slipper follower
Cat Cams launches Renault F4R finger followers for high rpm usage
Ford Pinto Cam Kits
Get 21stcentury style power, torque and reliability with Cat Cam’s new Ford Pinto performance cam, pulley and coated follower kit
Give your 2.0 & 2.3-litre Duratec a boost with Cat Cams – as used by Marcus Gronholm!
Ford Duratec ST170 VVT delete
Ford ST170 non-VVT camhafts for track day / rally use, fully compatible with the stock valve train and front camshaft oil seals
RenaultSport Clio 197
Cat Cams is delighted to announce the launch of a new fast road ‘Sport’ cam profile for the popular RenaultSport Clio 197.
Renaultsport Clio 172/182
Gain up to 18 bhp on the Clio 172/182
Mini Cooper R56
Cat Cams launches new MINI Cooper S R56 profiles which gain over 10 bhp
Citroën C2 VTS 125hp
Cat Cams 1323703 profiles deliver a peak power increase of up to 12 bhp @ 6500 rpm.
Ford Zetec Turbo Conversion
Cat Cams unveils bespoke profiles for 2.0 ‘Silvertop’ Zetec turbo engines
Peugeot 206 GTi 137bhp
Cat Cams launches fast road profiles for 137 bhp Peugeot 206 GTi gains up to 23 bhp and 24 lb.ft of torque
Ford Zetec 2.0L
Cat Cams produce another winner for the 2.0-litre Ford Zetec Black Top engine
Peugeot 306 GTi-6 & Rallye
Peugeot 306 GTi-6 & Rallye owners – add over 25 bhp with Cat Cams
Gain 20 bhp at the wheels on the Hyundai Coupe with a pair of Cat Cams
- MANUFACTURER -
Simca / Talbot
Cat Cams has a large database of cam designs available, ready for grinding to suit your custom project. However, if you have particular needs, we do offer in-house cam design for the most demanding applications.
To generate the best profiles available, we have developed our own cam design software to tackle any design constraint of modern times. This way, we are able to define the edge of technology rather then try to stay close to it.
Thanks to tight integration into the production process, new designs are efficiently processed to machine code for the CNC cam grinders. This way, custom cams profiles are available within a real world time frame and cost
ROCKER ARM GEOMETRY
In fact, the first result of the design process is the valve motion. The cam profile (or cam lobe) is just the geometrical shape that is required to generate the valve motion. In case of a flat tappet cam follower, the relation is very much straightforward. The usual issues are the contact diameter on the cam follower, and undercutting of the cam nose ('knife edge'), especially on lobes with a small cam base diameter.
In case of a rocker arm system, the calculations to get the correct lobe shape are more complicated, and typically more iterations are needed to optimize the final result. Luckily, the valve train geometry for a vast range of engines has been scrutinized on the coordinate measurement machine (CMM) at Cat Cams , so for most applications all required geometrical data is readily available.