Devin D Porsche Race Car Project
- C J Murray
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Re: Devin D Porsche Race Car Project
The Devin gets put into the trailer tomorrow. We head to FL Friday with Sebring at the end of the month.
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'57 Speedster
'59 Sunroof
'60 Devin D Porsche Race Car
'63 Cabriolet "Norm"
'67 911 S Original Owner
'03 Ferrari 575M
'09 Smart Passion
'59 Sunroof
'60 Devin D Porsche Race Car
'63 Cabriolet "Norm"
'67 911 S Original Owner
'03 Ferrari 575M
'09 Smart Passion
- Vic Skirmants
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Re: Devin D Porsche Race Car Project
Sure hope you have the rear engine sealing tin.
- Neil Bardsley
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Re: Devin D Porsche Race Car Project
What type of distributor is that?
- C J Murray
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Re: Devin D Porsche Race Car Project
Useless weight on the track.
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- C J Murray
- 356 Fan
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Re: Devin D Porsche Race Car Project
MSD, I used the same on the previous racer. For the street the 123 is better but when using the MSD box and running at full advance most of the time the MSD distributor is better.
'57 Speedster
'59 Sunroof
'60 Devin D Porsche Race Car
'63 Cabriolet "Norm"
'67 911 S Original Owner
'03 Ferrari 575M
'09 Smart Passion
'59 Sunroof
'60 Devin D Porsche Race Car
'63 Cabriolet "Norm"
'67 911 S Original Owner
'03 Ferrari 575M
'09 Smart Passion
- Vic Skirmants
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Re: Devin D Porsche Race Car Project
Yes; hot air off the track is certainly lighter than cold air.
- Charles H Jacobus
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Re: Devin D Porsche Race Car Project
Wouldn't that add to drag? Seems there would be a lot of burbling going on.
Chuck
Chuck
Current:
2012 Silver 991
1995 Midnight blue 993
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2012 Silver 991
1995 Midnight blue 993
1965 Red 356C
Past:
Fond memories of 14 others (including a '63 Normal and a 61 S90)
- C J Murray
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Re: Devin D Porsche Race Car Project
At 100+mph I expect some fresh air to find its way to where it is needed.Vic Skirmants wrote: ↑Thu Feb 14, 2019 10:13 amYes; hot air off the track is certainly lighter than cold air.
'57 Speedster
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'60 Devin D Porsche Race Car
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Re: Devin D Porsche Race Car Project
CJ I am looking forward to the race report. Devin looks great. Always had a sneaker for those cars.
Regarding the hot air in the engine compartment: On the Formcar-Porsche, I ducted the air intakes to the carbs to a separate intake, and the fan intake also to a separate intake ( the normal Porsche grille ) These are sealed with aircraft diaphram seals. Recently, I have been working on a belly pan that seals off the underside. The sump and transmission drain poke out the bottom. The goals of all of this are to keep cold air on the intake sides, and warm air only out the designated exit.
Regarding the hot air in the engine compartment: On the Formcar-Porsche, I ducted the air intakes to the carbs to a separate intake, and the fan intake also to a separate intake ( the normal Porsche grille ) These are sealed with aircraft diaphram seals. Recently, I have been working on a belly pan that seals off the underside. The sump and transmission drain poke out the bottom. The goals of all of this are to keep cold air on the intake sides, and warm air only out the designated exit.
- C J Murray
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Re: Devin D Porsche Race Car Project
Hi Erik, I can't argue with the heat concerns. When I was considering what to do about it and looking at what Devin did I decided to do nothing(easy) and see what happened. I looked at the old Porsche Spyders and they didn't do much in that regard. It seems to me that you either have to control the air very effectively or you would be better off with no control at all where lots of fresh air is rushing all over. Chances are that there will be many teething problems with the Devin and this may be one. ThanksErik Thomas wrote: ↑Fri Feb 15, 2019 8:57 pm CJ I am looking forward to the race report. Devin looks great. Always had a sneaker for those cars.
Regarding the hot air in the engine compartment: On the Formcar-Porsche, I ducted the air intakes to the carbs to a separate intake, and the fan intake also to a separate intake ( the normal Porsche grille ) These are sealed with aircraft diaphram seals. Recently, I have been working on a belly pan that seals off the underside. The sump and transmission drain poke out the bottom. The goals of all of this are to keep cold air on the intake sides, and warm air only out the designated exit.
'57 Speedster
'59 Sunroof
'60 Devin D Porsche Race Car
'63 Cabriolet "Norm"
'67 911 S Original Owner
'03 Ferrari 575M
'09 Smart Passion
'59 Sunroof
'60 Devin D Porsche Race Car
'63 Cabriolet "Norm"
'67 911 S Original Owner
'03 Ferrari 575M
'09 Smart Passion
- C J Murray
- 356 Fan
- Posts: 9221
- Joined: Fri Oct 23, 2009 7:24 pm
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Re: Devin D Porsche Race Car Project
Snow racing?
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- IMG_2520.jpeg (4.83 MiB) Viewed 2279 times
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- IMG_2521.jpeg (3.61 MiB) Viewed 2279 times
'57 Speedster
'59 Sunroof
'60 Devin D Porsche Race Car
'63 Cabriolet "Norm"
'67 911 S Original Owner
'03 Ferrari 575M
'09 Smart Passion
'59 Sunroof
'60 Devin D Porsche Race Car
'63 Cabriolet "Norm"
'67 911 S Original Owner
'03 Ferrari 575M
'09 Smart Passion
- Wes Bender
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Re: Devin D Porsche Race Car Project
You could put provisions on the front for a snow plow, but then again there's that weight issue.....
Beautiful car, Cliff.
Beautiful car, Cliff.
Some days it's just not worth chewing through the restraints.....
- Alan Hall
- 356 Fan
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Re: Devin D Porsche Race Car Project
Cliff,C J Murray wrote: ↑Sat Feb 16, 2019 8:53 amHi Erik, I can't argue with the heat concerns. When I was considering what to do about it and looking at what Devin did I decided to do nothing(easy) and see what happened. I looked at the old Porsche Spyders and they didn't do much in that regard. It seems to me that you either have to control the air very effectively or you would be better off with no control at all where lots of fresh air is rushing all over. Chances are that there will be many teething problems with the Devin and this may be one. ThanksErik Thomas wrote: ↑Fri Feb 15, 2019 8:57 pm CJ I am looking forward to the race report. Devin looks great. Always had a sneaker for those cars.
Regarding the hot air in the engine compartment: On the Formcar-Porsche, I ducted the air intakes to the carbs to a separate intake, and the fan intake also to a separate intake ( the normal Porsche grille ) These are sealed with aircraft diaphram seals. Recently, I have been working on a belly pan that seals off the underside. The sump and transmission drain poke out the bottom. The goals of all of this are to keep cold air on the intake sides, and warm air only out the designated exit.
I don't know about 550's but pretty sure RSK and RS60/61 had full bellypans that seperated exhaust area and cooling exit air from fan inlet and carb inlet air.
- Jack Walter
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Re: Devin D Porsche Race Car Project
That's a gorgeous car Cliff - good luck at Sebring. 550's didn't have much air management under the rear deck either.
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Re: Devin D Porsche Race Car Project
Here is a picture of the Formcar-Porsche air box that directs air into the cooling fan. The flat pans part way up the velocity stacks fit tightly in to the carb air intake bumps. Once I get the belly pan installed, air from the cooling fan exits though the wheel arches and two vents at the rear. The reason I have gone to all this trouble, is that dirty air covered with tire dust and other crap was circulating in the engine compartment. I also think that was causing a lot of drag. Now the car has a smooth profile underneath from nose to tail.