The engine was built by RMsport, this guy builds 240-260bhp formula atlantic spec NA 4age's for the irish rally boys.

Our engine is running the standard 4age forged crank but with forged conrods and high comp pistons, high comp head gasket.

ported and gas flowed big valve head with 300deg rally cams by piper and uprated valve train.

twin weber 45 carbs on custom RM inlet manifold, modified distributor to allow manual adjustment of ignition timing.

fully wrapped custom 4-2-1 exhaust manifold with just under 2in primaries, fully wrapped custom system by urban racing

(asked for it to be quiet, light and v strong, it is braced all over the place and uses the silencer off a bentley, very unrestrictive but easily passes sound tests

(about 98db at 4500).

Had car on the rollers a few weeks ago before the northwest stages and managed 140bhp at 7500rpm at the wheels.

The carb boffin thinks its about 165-170 at the flywheel.

Throttle bodies are iminent, either R1 or 4age 20v depending which come out on top in the test mule

(a 20k mile aw11 minter).
