30-12-2021, 06:53 PM
Hi Dennis,
Trying to be constructive I would make a few observations. Also I have no idea about your engineering/DIY skills or facilities so I hope I'm not being unfairly critical.
Rad Core:
I would be more concerned about keeping the rad core well located/supported than the shell. Best not to be rigid, some controled flex should be designed in.
Shell:
Only needs light tie in. One rod from the bulkhead to its top centre would do if its supported in the usual way at the bottom sides.
Engine:
1275 A Series and gear box are heavy units, 250 lbs or thereabouts. Thats a lot if added weight so far forward in the chassis for the comparative flimsy A7 front suspension, steering, king pins and brakes to cope with to say nothing of now having arround 65 bhp. Also to make it fit in the space available you have to raise the engine to clear the chassis which raises the C of G considerably again stressing the front end more than std. inducing more body roll.
You may find you have serious understeer as a result.
Engineering detail:
Please ditch the threaded rod. If you need to make up rods for any reason use plain and cut threads as required.
Front engine mount to chassis looks to be secured by one bolt per side onto the forged chassis front. Not sure this is stable enough.
I am speaking from experience here so am very familiar with the issues. I would never fit an A Series engine in the original position for a whole host of reasons. Better and more appropriate would be a Reliant unit. Any build/conversion has to be considdered in the round.
Having said all the above, good luck with the project.
Trying to be constructive I would make a few observations. Also I have no idea about your engineering/DIY skills or facilities so I hope I'm not being unfairly critical.
Rad Core:
I would be more concerned about keeping the rad core well located/supported than the shell. Best not to be rigid, some controled flex should be designed in.
Shell:
Only needs light tie in. One rod from the bulkhead to its top centre would do if its supported in the usual way at the bottom sides.
Engine:
1275 A Series and gear box are heavy units, 250 lbs or thereabouts. Thats a lot if added weight so far forward in the chassis for the comparative flimsy A7 front suspension, steering, king pins and brakes to cope with to say nothing of now having arround 65 bhp. Also to make it fit in the space available you have to raise the engine to clear the chassis which raises the C of G considerably again stressing the front end more than std. inducing more body roll.
You may find you have serious understeer as a result.
Engineering detail:
Please ditch the threaded rod. If you need to make up rods for any reason use plain and cut threads as required.
Front engine mount to chassis looks to be secured by one bolt per side onto the forged chassis front. Not sure this is stable enough.
I am speaking from experience here so am very familiar with the issues. I would never fit an A Series engine in the original position for a whole host of reasons. Better and more appropriate would be a Reliant unit. Any build/conversion has to be considdered in the round.
Having said all the above, good luck with the project.