356 industrial engines on the dyno

[Rasser]

Hi

From time to time you hear the talk about using Porsche 356 industrial engines in cars. Some people say it can't be done without exchanging cams, lifters, pistons etc.

We had 2 of these industrial engines put on the dyno this friday. Both engines are completely stock internally, and have never been opened up. Only carbs, distributor, oil filter and exhaust are bolted on, long block is stock industrial engine.

One engine is a 1600 industrial engine from 1961.
It runs a set of 32mm Solex PBIC, Bosch BR18 distributor and a homebuilt Abarth style muffler

Second engine is a 1680 industrial engine from 1964 (616/33).
It runs a set of Zeniths (28mm venturis - 75hp 356 engine), Bosch 022 distributor and a homebuilt sidewinder header system with 2" twin muffler setup.

The engines have been running strong for some time now, and we had them dyno tested just to get the numbers, and also check up on the AFR readings.
Pictures show the results.
Check out those flat torque curves! They are a true pleasure to drive

1. engine - 69hp/136nm

2. engine - 76hp/135nm

_________________
1957 Ghia - http://www.thesamba.com/vw/forum/viewtopic.php?t=647222
1966 Deluxe bus
[email protected]

[EverettB]

Very nice and both installs look very clean

In this photo, is the fuel line coiled on the left to prevent vapor lock?

_________________
How to Post Photos
Everett Barnes - [email protected] | My wanted ads
"Water is the only drink for a wise man" | "Communication prevents complaints"
Stop dead photo links! Post your photos to The Samba Gallery!

[Jon Schmid]

I assume the rockers and valve springs have been upgraded?

[Rasser]

[Rasser]

[gears]

Man, those were a steal when Berg was selling them .. I bought 2 for $800 each .. virtually new engines. I still have one of the magnetos ..
_________________
aka Pablo, Geary
9.36 @ 146 in '86 Hot & Sticky
'90 Syncro Westy SVX
'87 Syncro GL 2.5
https://guardtransaxle.com

[Rasser]

[Starbucket]

What is the compression ratio if it's 8 or under it has the perfect cam for a turbo. Just think 250 HP @ 10 P.S.I.

[Rasser]

[Starbucket]

[Rasser]

[Alan Brase]

So, the flow thru the carbs is what sets the horsepower?
32PBCI = 70 hp (It was 60hp in 1957 1600)
Zeniths = 75 hp
Nice motors.
I was at Valley Core company in 1969 and they had a lot of them laying around.
Dirt cheap, but I'd only paid $200 for my 57 cab and was not gonna buy no stinkin expensive motor for it.
Al
_________________
Al Brase
Projects: 67 sunroof bug, 67 Porsche 912 Targa, 70 Westy
Dec 1955 Single Cab pickup WANT 15" BUS RIMS dated 8/55, thru 12/55
To New owners: 1969 doublecab, 1971 Dormobile
Vanagons:
80 P27 Westy JUL 1979, 3rd oldest known US
83 1.6TD Vanagon, 87 Wolfie Westy daily driver, swap meet home

[Starbucket]

What did you do for the muffler? I've got a 356 and a Ghia I'm getting ready to put it in after I replace the Pistons/cyl.s.

[Rasser]

[Rasser]

[sleepywiesel]

Thank you for the information. Very good job!
Do you know how many hours these engines ran before you put them into your cars?

Does your lowlight gearbox take the torque or are you running a later gearbox?
_________________
________________________
'59 beetle
'60 beetle

[Rasser]

[sleepywiesel]

Thanks for the reply!

The problem I had with my '59 original gearbox was that it poped out of gear while driving.
I read on the internet that this can be caused by bigger engines. But I think my gearbox was just worn out.
But apart from that I heard several times that the split transmissions are weak.

Sorry that I can't bring you a better answer
But maybe there are some guys in the beetle forum that can help you out. Would be really interesting what experiences they made.
_________________
________________________
'59 beetle
'60 beetle

[Rasser]

Jumping out of gear is common fault when the gear and slider are worn so the angled slider teeth can’t keep the gears engaged any longer. This happens on newer gearboxes too.
The early gearbox is definitely weaker. No doubt.