March 85B

{{Short description|British open-wheel race car}}

{{Infobox racing car

| Image = Paris - Bonhams 2016 - March 85B Formule 3000 - 1985 - 003.jpg

| Car_name = March 85B{{cite web|url=https://www.hemmings.com/classifieds/dealer/formula/unspecified/2467982.html|title=1985 March 85B F3000|access-date=25 October 2022}}{{Cite web|url=https://www.classicdriver.com/en/car/march/f-3000/1985/815550|title=1985 March F 3000|website=www.classicdriver.com}}
March 86A{{Cite web|url=https://gasgeek.net/details.cfm?id=189|title=GasGeek | Every Car Has a Story|website=gasgeek.net}}

| Category = Formula 3000

| Constructor = March

| Chassis = Aluminum monocoque with rear sub-frame covered in fiberglass body

| Front suspension = Double wishbones, Coil springs over shock absorbers, Anti-roll bar

| Rear suspension = Twin lower links, Single top links, twin trailing arms, Coil springs over shock absorbers, Anti-roll bar

| Wheelbase = {{convert|3000|mm|in|0|abbr=on}}

| Track =

| Engine name = Ford-Cosworth DFV, mid-engined, longitudinally mounted, {{convert|3.0|L|cuin|1|abbr=on}}, 90°, V8, DOHC, NA
Alfa Romeo, mid-engined, longitudinally mounted, {{convert|3.0|L|cuin|1|abbr=on}}, 60°, V6, SOHC, NA
Buick, mid-engined, longitudinally mounted, {{convert|3.5|L|cuin|1|abbr=on}}, 90°, V6, OHV, NA

| Gearbox name = Hewland

| Gears = 5-speed

| Type = manual

| Power = {{cvt|450|hp|kW}}

| Tyres =

| Weight = {{convert|540|kg|lb||abbr=on}}

| Debut = 1985

}}

The March 85B was an open-wheel formula race car, designed, developed and built by British manufacturer March Engineering, for Formula 3000 racing categories, in 1985.{{Cite web|url=https://www.ruotedasogno.com/en_gb/1985-march-f3000-85b-16.html|title=1985 March F3000 85B-16|website=www.ruotedasogno.com}}{{Cite web|url=https://www.agorauto.com/annunci/march-f3000-85b-16-1985/|title=MARCH F3000 85B-16 1985}}

A version of the car was adapted for the American Racing Series, later re-named Indy Lights. It was powered by a Buick V-6 pushrod engine.