MG Midget 1275 Dynamo to Alternator Conversion - Birth of a Racecar (Episode 47)

Capturing the journey of a MG Midget 1275 RWA from restoration project to participation in the 2022 MG Car Club speed series. This is MG Midget, the birth of a Racecar exploring the highs and lows of classic car restoration and bringing the car upto specification for sprinting, hill climbs and trackdays
In this episode we install the alternator and in doing so convert from a dynamo setup which was on the car originally

[@tricky3746]

Hi, what amp ring connectors did you use to connect the three cables together.

[@mgmidget-thebirthofaraceca4349]

Not sure the wires are taking to full load from the alternator to the battery so need to be rated to your full alternator output

[@paddlesplash]

What did you do to protect the system from the additional current the alternator is capable of putting out? (generator at 23 +/- and some alternators at 45 -75amps) I read about the dead battery high load situation. Did you add a fuse to the main power line?

[@mgmidget-thebirthofaraceca4349]

i didnt but interestingly the alternator got fried on the last race so its a good idea for when i replace it. will do a video about it i think

[@nycocacola1256]

Hi. Where can I buy this alternator and parts. I have mg midget 1970 mg midget.

[@mgmidget-thebirthofaraceca4349]

Got it off eBay . Search for lightweight alternator. Thx for watching

[@nycocacola1256]

Thank you. I just install the the alternator. Try to install the wire. Little bit scare

[@teabelly1565]

Thanks for your vid and conversion info especialy required belt info. I have the same job to do on my 1275 mini and the location and bracket needed are the same as the midget - A series engines after all?

[@mgmidget-thebirthofaraceca4349]

Glad it helped

[@jeremylockwood3838]

Great video and thank you for giving the correct dimensions for the belt. Which alternator did you end up using and is that just the rear alternator bracket from the late 1275's?

[@mgmidget-thebirthofaraceca4349]

Was a std alternator but will be swapping it for a 40 amp lightweight one shortly. Yes I was using std brackets . Thanks for watching 👍

[@hevray1]

Hi, good result power wise! what needles did you end up with and what was the cam spec please? interested as just rebuilt my MG Midget with 1275 engine overbored 60 thou, big valve gas flowed head and Piper 255 cam, using red springs and 'm' needles.

[@mgmidget-thebirthofaraceca4349]

The AH2 needles id been advised to fit ended up being ok with mixture not being too lean or rich overall. The cam is a std lift cam to meet the group regs but has a longer duration. Makes it run a bit lumpier at idle but works well higher up the range. Your engine should be good for 120+ . Nice! flying machine