Oil Cooler; Bellhousing; High Horsepower Transmissions - Factory Five Racing Mk4 Roadster Assembly Manual

Timing
Most computer chips simply change the timing of the engine and slightly enrich the mixture. Using a
timing light, advancing the base timing to 14 will do the same. Higher octane fuel will be needed.
Under-drive Pulleys
Yes. They work well on all cars.

Oil Cooler

Not really necessary on small blocks or cars that aren't raced heavily. They look nice when installed in
the smaller opening below the radiator. For supercharged/turbocharged or big block track cars an oil
cooler will help.
Factory Five offers an oil cooler with #10 Stainless Steel braided lines and mounting bracket.

Bellhousing

If you are changing your transmission or want some safety piece of mind, using a SFI approved safety
bellhousing makes sense. These usually have mounting locations for many different transmissions built
into them. Ford Racing, McCloud, Lakewood, and Quicktime are a few companies that make Ford
specific ones.

High Horsepower Transmissions

Stock: T-5
The stock T-5 is good for the stock 302 engine. If the engine is going to have some work done to it then
an upgrade to a heavy duty, Ford Racing "Z" T-5 is all that is needed. An additional change to a Tremec
TKO 500 or 600 is needed if the engine that will be used has 350lbft of torque or more. One unique
485
www.factoryfive.com 508-291-3443