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Post by dickie on Aug 31, 2021 19:23:32 GMT
Due to the fact that I have a broken thermotstat housing on the RS meaning removing all the belts and camwheels. I had to do this at the weekend with the other car.
This was the first practice run. Time 72.50
My best effort was on the second day when I did a 68.36.
Compare to the best 1800 MX 5 mk1 which is stripped caged and bucket seats did a 53.12 Another 1800 Mk2 did a 59.12
a 1999cc Mk 3 did a 55.45
The TVR Vixen 2500cc which set off before me did a 52.30
The car has 3.25 x 19" crossplys on it which I had to put up to 34 PSI to stop them rolling around.
It is powered by a Mighty 750cc side valve engine the basic design was done in 1922.
The Austin in the vid is 1933/34 so the engine design was already 11 years old but had a few improvements The Austin has been in the family since 1981 ish. I have been playing with it since 1991.
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Post by atlex on Aug 31, 2021 20:03:13 GMT
This is the best video I've ever seen on the topic of a broken thermostat housing  epic seeing a genuine vintage car doing a sprint! |
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Post by dickie on Aug 31, 2021 20:39:47 GMT
Hi Atlex,
It was a great fun weekend but the crude suspension was not happy on the bumpy runways.
Its hard to hang on with no seatbelts and a drivers seat that moves about a bit.
After a bit of tweeking the points I managed to get the engine to do 6500 RPM in third.
I will have to fix the Eunos soon though.
I have some engine parts for the Austin away being lazer welded at the moment which will cost me a lot of pocket money so I have Sorned the Mazda.
The Austin might well find it gets fitted with modified Mx5 valves !!! they have a smaller diameter stem which will improve airflow.
I have already turned down an inlet and exhaust valve to experiment with,
I will need to shorten the valves and turn new collet grooves to make it all fit as well as turn a new set of valve guides.
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Post by wannabe on Aug 31, 2021 21:20:54 GMT
Love it  That's some impressive damping on the camera, considering how much the nose is going up and down! Diminutive size and lightweight must have had some benefits on the tight bits, roly-poly tyres or not! lol |
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Post by dickie on Sept 7, 2021 17:22:40 GMT
Hopefully the above link will show the damaged themostat housing. I broke it in the vice to see the extent of the crack which is the black line. I think that the housing got damaged when the engine was removed from its donor vehicle or in transit on a pallet.
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Post by Zed. on Sept 7, 2021 21:38:27 GMT
Hopefully the above link will show the damaged themostat housing. I broke it in the vice to see the extent of the crack which is the black line. I think that the housing got damaged when the engine was removed from its donor vehicle or in transit on a pallet.
 to save looking in the album... shame it's broke, looks like the steel 'tee' fitting was not rotten  Rich. |
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Post by dickie on Sept 12, 2021 17:55:08 GMT
Hi Folks, The thermostat housing delete is now in place. I have re used the metal T piece as can be seen in the photo. ( If the link works ) flic.kr/p/2mpaAWU |
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Post by Zed. on Sept 12, 2021 18:18:49 GMT
Hi Folks, The thermostat housing delete is now in place. I have re used the metal T piece as can be seen in the photo. ( If the link works ) flic.kr/p/2mpaAWU again, save looking through the album...  Rich. |
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