Planning a new 2165cc for my 67, some camshaft ideas
TexasTom:
It seems to me you may have some parts that will drive you to what is necessary to use ...
specifically, those beautiful cylinder heads!
With the chamber size so small, you may be driven to a cam spec a bit higher than optimal, but still you can find a good choice.
It will all depend on what increase in affective chamber size can be made with your pistons of choice so I'd concentrate on that first, then choose a camshaft.
I recently ran into the same situation for a customer's build:
He had a 2276 in a Spyder kit. The camshaft (CB2295) had begun to go flat and one of the lifter bores cratered (exploded!).
The chambers on his CB heads were also quite small at 48cc ...
Due to the budget being preset for the rebuild and any extra funds left over for potential custom machine work being absorbed by the new engine case, I decided to choose the camshaft based on what it would need rather than what would be "Best" for the application and driving style/gearing.
The simple choice in the end was a Webcam 86B, for this particular engine.
Without going crazy adding too much deck height (although more than ideal was used) to get the compression down, this was ideal, especially considering the vehicle's light weight.
Compression was set at an easy 10.2:1.
With 44 IDFs using 36 vents it performs very nicely on the road as a daily and still has more than enough spunk to put a smile ear to ear.
Still not optimal, but a good compromise in my opinion.
If I had to make a choice for your build, Alex, I'd go with something similar to a Webcam 86A (if you are able to find those extra chamber ccs) or a "B". Both are great and I like the Webs over the Engles by personal choice.
Good luck with the build and be sure to post the burnout videos when done! LOL
TxT
Torben Alstrup:
Hello.
I agree on the Web versus Engle thing. That said the FK8 is a great cam, in the right combo.
Now, the Denham heads usually have very high I/E ratios. I suspect those heads to have that too with that valve combo. With that, and your induction in mind you definitely do not want an overly agressive cam, because that would kill the lower rpm driveability and make the engine a drag off of the line unless you rev it. The #2300 is out of the question IMHO. What you really wanted is a split duration cam but noone except JPM makes a split cam for ratio rockers with that much duration unless its a special order. A perfect cam would be the Web 121/125, but it is for stock rockers and I think it would be pushing it to add 1,25 rockers. However, the "1,25" stock style rockers sold by AA is only about 1,15-1,18 IRL With those you will get a little over 0,500" lift. This could actually be a killer set up with the rest of your combo and will give you a crisp lower end along with good rpm power. 10-1 on premium fuel
Bad bug:
Quote from: DaveN on November 22, 2019, 18:56:38 pm
Quote from: WhiteTrash on November 22, 2019, 09:59:45 am
Quote from: DaveN on November 21, 2019, 18:33:33 pm
Quote from: alex d on November 21, 2019, 16:33:55 pm
Some pictures of the heads for reference
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How many years did you have to wait for them ::)
He didn't have to wait long at all. Jeff just sold him somebody elses heads who'd already paid in full, waited 5 years and has given up on them. ;D :D ;D
:D
I would us a FK 8 if it was mine. I have one in my low compression 2276, it drives nice on the road and still ran a 13.2 with the turbo gear ratios that are in the gearbox
DaveN what are your turbo gear ratios like.
alex d:
Thanks for all the input guys, since I'm dealing with a seven month old baby VW projects are not the main priority right now, so I have time to rethink the combo ;D
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