stange type 4 big bore kit..?

[elroocky]

well wally? I'm going to have a try first.. before salling them for seals, no prob, I have an adress where they can provide them, all style all dimensions, a friend give me it yesturday, I feel more confident with it now..

more informations..? all are welcomed

wally, what would you do with that kit? ( with turbocharged type 4) and infos..? a precise engine chart.?

[starmember]

It looks like a Nippon but i`m not sure.

[Wally]

Originally Posted by elroocky

wally, what would you do with that kit? ( with turbocharged type 4) and infos..? a precise engine chart.?

Not sure what the set exactly is, but it would make for a fine cool riding engine for my daily squareback

No problem, its just a possibility.

Greetings,
Walter

[Ephry73]

I would use a 76mm stoke crank with that, or just the 66mm. Looks like a great find, and if you ever need to get RID of them, please let me know.


Great, great find.



E

[elroocky]

it look's like everebody is starting to love this "middle size boring kit". and forget it no way...

I'll have a try on a 66x100, that could be an excellent 2074cc for my next toy as a 914 to replace the old 1971cc...

I'm looking forward for a chart , I need to see..

[mikko k]

Hello everybody. I had about 10 years ago from Scat just like the same set. The piston were lower for longer stroke, but cylinders seem to be alike. Something happened to the set in my friends car, but I don't remember what! I still might have some cylinders in my store.

[cnavarro]

There are a few possible outcomes of what could have happened to your friends set of scat birals, all related to the differing coefficients of expansion between the iron liner and aluminum cooling fins. Porsche had issues with the aluminum separating / falling off from the cylinders in high load / extended load situations. Primarily heat soak is your worse enemy. If the cylinder gets too hot, it just gets hotter, and hotter. You get the point. This is a point I've debated with the greatest minds in the 356/912 arena. The conclusion we have come to, is for a stock, or slightly hotter than stock application, birals are great, as they will provide better cooling, head sealing, and generally, longer cylinder life than a comparable cast iron cylinder. On a personal note, I would say to take advantage of the longer cylinder and add some more stroke. As long as the birals hold together (a big IF), they should be able to cool about 180 horses reliably (again from testing data from our own version of birals). A good cooling system will help greatly, say a DTM, to keep the aluminum in it's place!

Charles Navarro
LN Engineering
http://www.LNengineering.com
Aircooled Precision Performance

[elroocky]

So charles,

what's your final conclusion regarding my Iron cast/ alu 100mm kit found, is ift clearly a good kit to work on... or just something to ban and forget...?

david

[cnavarro]

I think it's a solid starting point, and with it's nice thick walls, i'd leave it at 100mm. Believe it or not, I have plans on file for a 100mm biral, as we figured that was the so-called limit we thought should be imposed on such a cylinder. I figure something in the 150 HP tune should live 100,000 miles, if done right with those cylinders. Bump it up to 180ish, and you might get 50,000 miles, but with increased maintainence and slightly reduced reliability. For longevity, maybe something in the 100 x 74 range would be good, but a 100 x 71 sounds just as appealing to me, since with the right cam, it will make good torque and be both cheap to build and will last over 100,000 miles in proper tune. What kind of cooling system are you planning on running?

Charles Navarro
LN Engineering
http://www.LNengineering.com
Aircooled Precision Performance