c20xe alt what amp alt to use?

[Courtnova16v]

Hi. I need to change the alt on my c20xe in my nova. The alt I need to change is a 70amp alt. I have a spare 55amp alt from a nova GTE, does anyone now if this will work or has anyone used a 55amp alt on a c20xe before? Thanks.

[Andy]

ive used nova alts on valvers before and theyre fine

[Courtnova16v]

Thanks for your help.

[MattBrown]

My 40 (IIRC) amp 1.0 alternator has worked on a c20xe with no issues.

They pull no more current when running then any other injection engine, its just starting them that needs a heavy battery.

Obviously if doing lots of short journeys (1 mile etc to work) then I would say 70amp needed.

If it will be running for no less then 10 mins every use, then 40 upwards.

[Courtnova16v]

Thank you, thats very helpful, put my mind at ease abit about using it. They are not the easiest of things to change in a nova, as I've found out once before, not much space down the back of the engine.

[MattBrown]

Agreed.

If you need a hand, im only down the road:thumb:

[Courtnova16v]

Thank you for the offer. If I get stuck I will give you a shout. When using a none big block alt on a c20xe has anyone had issues getting the pulleys to line up?

[MattBrown]

I have had issues with 2l 8v, 16v, and smallblock stuff.

Can't remember though.

And I spotted you last september, driving like a hooligan out of demon tweeks, I was in a red mk2 astra GTE c20let.

[Courtnova16v]

I have had issues with 2l 8v, 16v, and smallblock stuff.

Can't remember though.

And I spotted you last september, driving like a hooligan out of demon tweeks, I was in a red mk2 astra GTE c20let.

I've found when using a none big block alt I have had to mod the alt bracket. Me driving like a hooligan no :) Couple of mates work there, car was looking a bit dirty that day.