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Jun 18, 2011 8:23 pm
Jun 18, 2011 8:23 pm
Subject: Re: Power At Last
Hi Julian,
I have completed the 2.4 litre blown engine, started by the late Peter Whenman, installed in a low chassis 2 litre. A Marshall cabin blower was modified to a supercharger and fitted between the front dumb irons similar to my MG J3 and the Blower Bentleys. I made new camshafts with the Ridout profile and fitted a gasflowed downdraft head, and a sensible exhaust header.A Borg and Beck clutch and an Alvis box complete the non-original mods, and all the original stuff is boxed if any future owner wishes to return it to the original , whatever that means precisely.
It does look a bit odd with the dynamo mounted vertically at the front of the engine where the blower should be. Use of the starting handle dog would require a hole through the header tank and the bonnet!
I have achieved on Stanton Motorsport's Dyno at Membury,
147 bhp at 4650 rpm and 187 Ftlb torque at 3510 rpm.
It climbs steep hills and will crawl along at 20 mph in top gear.
0 to 60 mph is about 12 seconds . Overtaking is a joy, as is high speed cruising at the legal limit .
I had a 16/80 in 1963, and drove it with three friends to Italy, a trip of 3000 miles. As my previous car was a 1924 a chummy, the performance was impressive. I now have another and although everything is as it should be in the engine dept. , I find it tiresome to drive with little low end torque , and you have to keep the revs up to get anywhere. It has a lovely Wilson box,that compensates for the lack of power during acceleration.I have learnt a lot from Steve Stanton with his vast experience of 2 litre Bristol engines, and applied this info to a new 16/80 engine I am building for the car.
Once again Lagonda failed to understand gasflowing, with two carbs supplying mixture to the valves through 3 90 degree bends.one bend even has a 5/16 bolt through the middle of the port!
My Alvis Silver Eagle has three Su's and that runs fine in all conditions and I am fitting a similar set to the 16/ 80.
The original 16/80 engine will be retained in "original condition" for the purists.
I would be interested in the performance figures of the 16/80 project,and what other mods you have done internally, especially to the lubrication system.
Regards...Dave
Hi Julian,
I have completed the 2.4 litre blown engine, started by the late Peter Whenman, installed in a low chassis 2 litre. A Marshall cabin blower was modified to a supercharger and fitted between the front dumb irons similar to my MG J3 and the Blower Bentleys. I made new camshafts with the Ridout profile and fitted a gasflowed downdraft head, and a sensible exhaust header.A Borg and Beck clutch and an Alvis box complete the non-original mods, and all the original stuff is boxed if any future owner wishes to return it to the original , whatever that means precisely.
It does look a bit odd with the dynamo mounted vertically at the front of the engine where the blower should be. Use of the starting handle dog would require a hole through the header tank and the bonnet!
I have achieved on Stanton Motorsport's Dyno at Membury,
147 bhp at 4650 rpm and 187 Ftlb torque at 3510 rpm.
It climbs steep hills and will crawl along at 20 mph in top gear.
0 to 60 mph is about 12 seconds . Overtaking is a joy, as is high speed cruising at the legal limit .
I had a 16/80 in 1963, and drove it with three friends to Italy, a trip of 3000 miles. As my previous car was a 1924 a chummy, the performance was impressive. I now have another and although everything is as it should be in the engine dept. , I find it tiresome to drive with little low end torque , and you have to keep the revs up to get anywhere. It has a lovely Wilson box,that compensates for the lack of power during acceleration.I have learnt a lot from Steve Stanton with his vast experience of 2 litre Bristol engines, and applied this info to a new 16/80 engine I am building for the car.
Once again Lagonda failed to understand gasflowing, with two carbs supplying mixture to the valves through 3 90 degree bends.one bend even has a 5/16 bolt through the middle of the port!
My Alvis Silver Eagle has three Su's and that runs fine in all conditions and I am fitting a similar set to the 16/ 80.
The original 16/80 engine will be retained in "original condition" for the purists.
I would be interested in the performance figures of the 16/80 project,and what other mods you have done internally, especially to the lubrication system.
Regards...Dave