R&J Simpson Engineering

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R&J Simpson Engineering

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Motorsport engineering and fabrication aluminium monocoque repair & construction, wings oil & fuel tanks. Full engineering & CNC machining facilities.

Suspension construction wishbones uprights aluminium magnesium steel welding. Aston Martin chassis.

16/06/2026

Just finished customers order making Reynard sequential gearbox covers with the oil feed system in them .
Cad drawn and machined up ready to anodise.

Happy to make any parts for your race team car preparation or repair or special project or restoration

09/06/2026

We were given 4 magnesium castings of a Mini 10 inch "Minilite" style wheel to machine .
Measurements made from a finished wheel program created to do the machining work.
Care has to be taken machining magnesium and not to run the machines at too high a speed for fear of generating heat in the fine swarf that can catch fire.
If the wheel casting were aluminium then the job would be run at higher speeds.
4 finished ready to sell 36 more castings to be done.

03/06/2026

Busy few weeks making new floor and panels for Lotus 15.
What started out to be making new floor and cills as the car is having an engine swap and exhaust is opposite side of the chassis, rolled into making more panels as many parts had gone missing.
New transmission tunnel also required and some welding work for engine gearbox mounts make new battery tray and driver seat needed repairing.

Chassis now back with the race shop to commence rebuilding up to race again.

20/05/2026

Machine shop have been busy with the CNC machines to make 2 sets of brake pedals and throttle pedals and 4 Reynard Gearbox side covers now ready to be anodised.

If you need parts making from a 1 off or small production run we are happy to oblige call 01827 67898 or email [email protected]

03/03/2026

Its all go go go here Aston Martin DB5 chassis finished and collected.
Now busy making 4 rear wings for Historic F1 car.

Suspension Top hats and tubes made from Tool steel then heat treated, now ground to size.
Engine oil fittings made from scratch at customers request. ready to deliver for car rebuild.

Anti roll bars and body frame made and off to be coated
Roll cage fitted for Race car build.

No job too big or too small for R & J Simpson Engineering.

18/02/2026

Been a busy few weeks with various jobs to do .
The biggest task has been the Aston Martin DB5 chassis that is now ready for customer to collect next week.

Another cross member is made up ready to start another chassis but we had a visit yesterday from a car owner requesting a new front end so we can start that build in a weeks time once we have cleared the current order for fabricated parts.
T70 Lola engine mounts Arrows bodywork frames Anti roll bars and Reynard F3000 rear wishbones.

22/01/2026

New year new projects
Reynard wheel nut set
Reynard gearbox oil feed tubes
Air lifter new feet made with roller bearing wheels powder coated
Numerous top hats made for wishbones and damper mountings

Lotus Elan rear upright weld repair and machining
Lola T70 Radius rods made to replace inferior construction rods that failed.
New Bias bar made as original unit the circlip grooves had worn
New Chevron dash panel

Now job too big or small for us to undertake give us a call with your requirements for new parts to be made, repairing existing parts welding repairs machining or from aluminium sheet work for chassis panels to making front and rear wings
Cad drawing available for 1 off parts or production runs

Call R & J Simpson Engineering 01827 67898 to discuss your requirements

29/12/2025

We have had a very interesting car in the workshop to work on in November and December that was originally a car built by our founder Bob Simpson when he operated as SPA.

Ray Rowan commissioned SPA to build him a monocoque around the left over Toleman TG280/ Lola T850 tub skins he had in 1987 to become the Roman hillclimb car he ran with Hart 2.5 420R engine and won the 1989 British hillclimb championship.

in 1992 the car was sold and in 93 the rear bulkhead and top fuel tank panels removed and new parts fitted to carry Judd CV 3.5 litre F1 engine.

The car lay dormant for a decade until a new owner bought the car and commissioned us to remove the Judd engine fitting parts and retro fit the Hart engine fitting kit, carry out a couple of minor repairs, make new seatbelt mountings and a new pair of front wings.

The car will run on the hillclimb scene again in 2026.

If you have an aluminium monocoque car that needs repair work or a full rebuild then contact us to discuss as no job too small or too large for R &J Simpson Engineering to perform.

17/12/2025

Busy Busy Busy ploughing our way through work to deliver before Xmas to add to Santa's sack.

March F2 Front upright pins finished and despatched and we have a few left own stock for sale
Rear upright's Clevis's to finalise today
March FT200 and FG400 gearbox plates made anodised and 1 of each available for sale.

Reynard F3000 gearbox tubes in the process of being made and the oil filter housing internal tubes finished and off for anodising along with rear upright to wishbone mounts.

Numerous top hats and damper top hats have been made the past 10 days for various cars being built.
If you need any parts made so no job too Big or small for us to do!!
Just give us a call 01827 67898 or
email [email protected]

28/10/2025

The past couple of weeks the guys have been making various parts
March 761 762 front bulkhead machine from billet to go with the middle bulkheads we carry in stock.
March steering rack mounts made and anodised along with rear toe links.

Reynard F3000 drive pegs made to order and surplus available to sell

Arrows A16 F1 nose cone location pegs where required to fit a car that never had them fortunately where able to borrow one from another car to draw up and make.

If you are needing parts made for your race car restoration or accident repair damage give us a call or email with your enquiry. No job too small from machining ,welding repair work to fabrication of wishbones uprights or aluminium work front and rear wings monocoque repair work
01827 67898
[email protected]
www.randjsimpson.com

Address

3 Mariner
Tamworth
B797UL

Website

http://www.randjsimpson.com/

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