Zetec 1.8 silvertop road/race/hillclimb and sprint engine and gearbox

[Rich Vaughan]

Zetec 1.8 Race engine

 

 

Professionally built, blueprinted balanced etc by race team in the 1990's for and won the Westfield Race series Championship in the hands of Martin (MGG on here) who I bought it from with hardly any mileage on it – I believe only a coupleof thousand road miles additional to the race mileage.

Since my purchase I developed it to power our Prelit Westfield Modprod hill climber

The car was quite succesful in a short 2024 season. Best result was winning FTD at 3 Sisters in the hands of my eldest son Matt, closely followed by younger son Tom who took 2FTD beating single seaters and 2.0 turbo XE Westfields along the way!!

We've now decided to go to Turbocharged bike engine power hence the sale of all this.

 

Original spec as purchased by me in 2023

 

1.8litre Silvertop Zetec

Cams: Inlet 1.8 standard. Exhaust 2.0 standard (both like new see photo) both fitted with Kent vernier pulleys (worth over £250 just for pulleys)

Lowered alloy sump with baffles and mod pick up (these can be a fortune to buy or to build!)

 

Martin reckons that he was seeing around 156bhp with this set up using Weber management on twin 40 carbs. The move to Yamaha R1 4XV Mikunis and Nodiz should at least equal this if not better it but eminently more reliable and driveable.

Current spec and new parts added 2023/2024:

 

Fuelling/Induction Yamaha R1 carbs on brand new Danst alloy inlet – this set up alone cost £500

Nodiz Gen X Pro engine management and loom 

Ancillaries:

New lightweight 3.5kg alternator and pulley 

New Water pump and pulley 

New torsional damper/pulley 

Lightweight uprated starter motor 

Mx5 clutch driven plate and New Mondeo 3 part clutch kit 

New plug leads, timing (cam belt) belt, ancillary

belt, thermostat housing and all gaskets

Tony Law Exhaust manifold adapted to fit Zetec 

Approx Total value of engine as re-built in 2023/24 £1984

 

Transmission: MX5 5 speed chose for strength, reliabilty and cost over type original type 9 Ford which are limited to only 150bhp unles investing a fortune. The Mazda box will handle 250 bhp and cost a lot less than a Quaife box

 

Mazda MX 5 5 speed gearbox converted to fit narrow Westfield chassis 

6mm thick steel adapter plate converts gearbox to fit Zetec mounts 

Extended spigot bearing fitted to accommodate adapter plate thickness.

Clutch slave cylinder adapter plate fitted to take the MX slave cylinder(new)

Dunning and Fairbank propshaft MX5 to Ford English axle diff £

 

Approx Total value of transmission £630

 

 

Selling price: Complete package Engine with all ancilliaries and Transmission £1750

....or Engine with ancilliaries less Transmission £1500

....or Transmission package complete £450

 

I might consider Selling some of the major items seperately ie Nodiz/Gearbox/Prop/Exhaust etc for a decent offer

 

Some action footage for you ignore tacho it was faulty: