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We built this to replace the stock motor in our Caterham 7. The goal was to get as much low end torque out of a 1600 for AX, and still be streetable. There were two Caterham's and one Lotus 7 locally that were known to have screamer x-flow motors. Ironically they were all built by the same guy, so,,,we decided to use Bhp in Bethlehem to engineer ours. Unfortunately we sold the Caterham before this motor was completed.

Here are the details:

This Kent crossflow 1600 motor, would be perfect for any Lotus, Caterham, formula ford, or Van Dieman.

 

The engineering goal of Bhp in Bethlehem was to design a reliable high torque, lower RPM motor to make my Caterham 7 jump out of the corners at the Autocross, yet still be streetable. The target with Weber 45dcoe's and a standard ignition system was about 145hp, or with an injection set up, about 160hp.

The block was cooked, magnafluxed, line bored, decked and bored to .060 over.

 

The crank was cooked, magged, reground and polished to spec, the rods were resized, rebored, and reconditioned, then fitted with properly machined .060 pistons, to clear the stainless valves, and yeild a compression ratio of about 10.5 to 1.

 

The alloy head was machined to fit larger stainless valves, and a full needle bearing roller rocker assembly from Tilton was set up with a custom "Cortina" cam by Bht performance in Bethlehem, PA. (295 lift, 230 duration @ .050)

 

They also flowed and polished the head as well.

 

The whole assembly was then assembled with ARP hardware, and balanced by Ober's Performance in Lititz, PA.

 

Includes a Tilton Cerametallic Rally race clutch assembly, a custom alloy flywheel, a BAT 5 port dry sump pump, with a Clubman tank, and Oil cooler, and enough stainless hose and fittings to plumb.

 

Also includes another 1600 X Flow block, cooked, magged, and ready for a spare.

We have invested well over $12,000. here, but are open to realistic offers, as we sold our Caterham before this motor was completed..

 

Lots of pics at http://www.aicauto.com click on "parts"

Contact John for more information.

ff1600a.jpg

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