Lotus Elan

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PostPost by: shaun » Fri Oct 20, 2017 6:26 am

Engine back from Dino yesterday , 146 bhp @ 6800 the graph rpm is not printed correctly
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PostPost by: shaun » Fri Oct 20, 2017 8:51 am

Dam that predictive text
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PostPost by: TeeJay » Fri Oct 20, 2017 9:54 am

Looking good Shaun. :D
Anouther stage completed on your restoration.
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PostPost by: Davidb » Fri Oct 20, 2017 3:37 pm

Can you remind us what the specs of the engine are-cams, capacity etc?
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PostPost by: shaun » Fri Oct 20, 2017 5:45 pm

Engine spec
Bore 83:65 x stroke 77
420 cams
1.625 valves
1.400 valves
Race springs
Light weight cam follewers
Combustion chamber head work
Mallory distributor
Je pistons
Forged rods
Crossflow crank
Twin 45 dcoe
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PostPost by: Davidb » Fri Oct 20, 2017 8:10 pm

Very nice specification and good power but I think I am more impressed with the torque figure!
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PostPost by: 1owner69Elan » Sat Oct 21, 2017 5:04 am

I’m sure someone else has noticed this, but the torque curve looks curious. Should intersect horsepower at 5252 rpm.

The rpm scale is stated as being off (shifted?). But, regardless the torque curve shown is way too high at 170+. From the hp curve the torque is more like around 120-125. Still decent as this is a stroked engine after all.
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PostPost by: shaun » Sat Oct 21, 2017 6:41 am

I think the torque is measured at Newton metres which as you said is around 125 feet pounds
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PostPost by: 1owner69Elan » Sat Oct 21, 2017 7:33 am

Thanks for clearing that up. I should have thought about the units.
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PostPost by: ecamiel » Sat Oct 21, 2017 1:03 pm

What is your cam timing?
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PostPost by: Davidb » Sat Oct 21, 2017 5:28 pm

Glad we cleared that up.

That was a good torque reading for 2 1/2 litres !
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