Author Topic: Solved - MJW #400 - Guidobaldi monoposto radial-engined prototype 1939/1951 (Read 4005 times)

woodinsight · « **on:** May 10, 2011, 01:36:03 AM »

A new batch of puzzles from me.
My last batch was almost solved within 24 hours so I've changed these to a wide variety of vehicles.

The first one should be relatively easy.
Name, year and what racing formula it was designed for is required for a point.

woodinsight · « **Reply #1 on:** May 17, 2011, 11:22:49 PM »

Up a level

whcgt · « **Reply #2 on:** May 18, 2011, 06:10:30 PM »

I will guess this particular Auto Union race car..to be..a 1936 Auto Union type C hill climb car.

woodinsight · « **Reply #3 on:** May 19, 2011, 06:54:55 AM »

Quote from: whcgt on May 18, 2011, 06:10:30 PM

I will guess this particular Auto Union race car..to be..a 1936 Auto Union type C hill climb car.

Not an Auto Union

shamrock · « **Reply #4 on:** May 20, 2011, 04:47:46 AM »

a french hillclimb special ?

woodinsight · « **Reply #5 on:** May 20, 2011, 07:17:20 AM »

Quote from: shamrock on May 20, 2011, 04:47:46 AM

a french hillclimb special ?

French yes but not designed for hill climbs.
It had a very special engine.

shamrock · « **Reply #6 on:** May 20, 2011, 07:50:55 AM »

is it a Deletrez diesel popwered racer

woodinsight · « **Reply #7 on:** May 20, 2011, 11:07:11 AM »

Quote from: shamrock on May 20, 2011, 07:50:55 AM

is it a Deletrez diesel popwered racer

Not that one I'm afraid.....

woodinsight · « **Reply #8 on:** May 25, 2011, 01:01:02 PM »

An easy Pro point perhaps?

João · « **Reply #9 on:** May 25, 2011, 01:03:16 PM »

1939 Guidobaldi F1 Prototype

faksta · « **Reply #10 on:** May 25, 2011, 01:07:29 PM »

Ah..I was also in a queue

Except for the date - some (most) sources say the car is from c.1953-1954.

João · « **Reply #11 on:** May 25, 2011, 01:12:21 PM »

Info :

faksta · « **Reply #12 on:** May 25, 2011, 01:14:28 PM »

I agree, it looks much older than a fifties child, but I thought I had to mention that version as well

Allemano · « **Reply #13 on:** May 25, 2011, 01:14:32 PM »

a lying radial engine!

woodinsight · « **Reply #14 on:** May 25, 2011, 01:15:01 PM »

Quote from: João on May 25, 2011, 01:03:16 PM

1939 Guidobaldi F1 Prototype

Wow, that was quick!
Yes, that's correct and it is from 1939.
Bad luck Faksta - many more of this type of car to come.....

The amazing 8-cyl radial engine

D-type · « **Reply #15 on:** May 25, 2011, 04:03:45 PM »

Something's wrong here!

If the car was built in 1939 then it was NOT built as a Formula 1 car as Formula 1 was not introduced until 1947!

What is could be is a car built in 1939 to compete in the 1500cc or Voiturette class of racing that was later entered in a [1947-1953] Formula 1 race. Or it could be a car built in 1947-53 as a Formula 1 car using an engine produced in 1939.

woodinsight · « **Reply #16 on:** May 25, 2011, 04:12:43 PM »

Quote from: D-type on May 25, 2011, 04:03:45 PM

Something's wrong here!

If the car was built in 1939 then it was NOT built as a Formula 1 car as Formula 1 was not introduced until 1947!

What is could be is a car built in 1939 to compete in the 1500cc or Voiturette class of racing that was later entered in a [1947-1953] Formula 1 race. Or it could be a car built in 1947-53 as a Formula 1 car using an engine produced in 1939.

You are correct there D-Type, something does not ring true.
I'll dig around to see if I can come up with the true story behind this prototype.
In the meantime does anyone else have any further input?

D-type · « **Reply #17 on:** May 25, 2011, 06:31:27 PM »

From what i can find out, the Guidobaldi engine probably dates from the 30s while the car was built in 1951.

The car had a strange suspension system with the wheels leaning inward on corners which was patented by Guidobaldi in 1957

The radial engine has 8 cylinders which means that it has to be a 2-stroke as for a technical reason that I don't understand, a 4-stroke radial has to have an odd number of cylinders.

Allan L · « **Reply #18 on:** May 25, 2011, 06:57:12 PM »

Quote from: D-type on May 25, 2011, 06:31:27 PM

The radial engine has 8 cylinders which means that it has to be a 2-stroke as for a technical reason that I don't understand, a 4-stroke radial has to have an odd number of cylinders.

Quite so. It says it's a 2-stoke on that notice and also that it's a supercharged 1500cc, so a voiturette like the Alfetta.
For equal firing intervals over the 720 degrees of crankshaft rotation the four-stroke cycle takes, you fire every second cylinder in turn which, with an odd number, brings you back to the start in those two revolutions. If you see what I mean.

woodinsight · « **Reply #19 on:** May 26, 2011, 01:18:30 AM »

Quote from: D-type on May 25, 2011, 06:31:27 PM

From what i can find out, the Guidobaldi engine probably dates from the 30s while the car was built in 1951.

The car had a strange suspension system with the wheels leaning inward on corners which was patented by Guidobaldi in 1957

The radial engine has 8 cylinders which means that it has to be a 2-stroke as for a technical reason that I don't understand, a 4-stroke radial has to have an odd number of cylinders.

I've searched my library but come up with very little that hasn't already been said here.
There has been quite a lot of discussion on TNF (with photos) and there was apparently a four-page article in Sports Car Graphic magazine March/April 1960.

Reading between the lines, I have come to the conclusion that the engine dates back to the 1930s (Francois Guidobaldi first produced a radial engine in 1930) whilst the car appears to date from 1951.
Certainly one of the oddest designs for a single-seater ever produced.

I have altered the title accordingly and thank everyone for their contributions.

nicanary · « **Reply #20 on:** July 18, 2020, 06:09:22 AM »

I like to think that I know most racing cars from the post-war period, but this is new to me, and a lot of other people, apparently. What is it?

nicanary · « **Reply #21 on:** August 16, 2020, 07:17:00 AM »

Experts?

fromwien · « **Reply #22 on:** August 16, 2020, 07:36:58 AM »

Guidomobile, 1956, builder Francois Guidobaldi, "The swaying F1 car"

nicanary · « **Reply #23 on:** August 16, 2020, 08:41:53 AM »

Quote from: fromwien on August 16, 2020, 07:36:58 AM

Guidomobile, 1956, builder Francois Guidobaldi, "The swaying F1 car"

Yes. This creation had a 2-stroke, twin supercharged, aircooled 8-cylinder radial engine! It's not in the usual reference books even though it complied with then-current F1 regulations. It was built as an experiment into tilting wheels/suspension for cornering.

sixtee5cuda · « **Reply #24 on:** April 28, 2022, 10:12:44 AM »

Re-post from 2011:

MJW #400 - Guidobaldi monoposto radial-engined prototype 1939/1951

(Searching for "Guidobaldi" finds both puzzles.)

The previous puzzle includes a lot of interesting technical information about this car.

News:

Author Topic: Solved - MJW #400 - Guidobaldi monoposto radial-engined prototype 1939/1951 (Read 4005 times)