cam replacement upon carb conversion

[david c.]

Hi guys,

I have been reading through my log book of records that came with my old 912E from the prior owners. I have about two inches of paperwork.

Anyway, when I bought the car, as a Porsche know-nothing (which is about where I still am!), the car had been converted from the injection to a 32/36 single Weber setup-the one with the octopus like intakes.

Well, as my knowledge has grown a wee little bit, I came to look to see if the cam had been changed to a carb-specific one at the time of the swap. From the records, this does not appear to have been done.

So, here's where I am today. I replaced the 32/36 last year with a set of freshly rebuilt 40mm Webers. Presently, I'm considering ordering a set of the velocity stacks from CB performance (any opinions on that matter?).

My car also has a Permatune installed. 009 Distributor, blue coil, etc. Nothing fancy.

Should I opt to have a more appropriate cam installed? Any suggestions?


As always, guys, I appreciate the help a lot.

Best regards,

David Cardone

[Bleyseng]

Installing a webcam 86a grind would be nice to go with those Webers. Maybe get a cam from Jake Raby with his special grind that works really well with carbs. Toss that 009 and get a 050 or a 914 distributor to improve your advance.
Geoff


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76 914 2.0L

[echocanyons]

Are the 009 bosch distributors really worse with webers? I bought and installed one thinking that they were the only way to go for carbs.
Note that I am surely no expert with these engines, I only know that I love to drive the "P" cars.
How do you get ahold of Jake Raby?


[This message has been edited by echocanyons (edited 05-09-2001).]

[72_914]

I'll let someone with more knowledge explaine the 009 vs 005 thing, but you can go to Jack's page at: http://www.aircooledtechnology.com/Home_Page.htm

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James
Cincinnati, OH
1972 1.7L
My 914 page

[Bleyseng]

009 vs the 050 or other distributors has been discussed for quite awhile now. The 009 was designed for a industrial motor and has about 17 degrees of advance. The 050 has about 30 degrees of advance. The Type 4 motors need 27 degrees of advance to run right. The timing on a 2.0L is set at 27 degree's at 3500rpm's. So that's why with 009 you have problems getting the timing set right. Then FI distributors works fine with carbs.
Try it out....
Geoff

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76 914 2.0L

[tracer]

I am putting the FI back onto my '74 1.8, I have 2 different 009 dist. One with vac advance other without. I saw a chart in the Haynes book with 4-5 diff 009 dist with alpha extentions. Should I toss both and go for a 050? If so, are there different models according to FI or Carbs?

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Thanks,

Brian
'74 1.8L in resto

[echocanyons]

I still have my original distributor in a box with many parts where it has sat since I had my motor rebiult and webers installed.
What actions should be taken to reinstall this?
Is there any way to tell the make of this distributor, I am sure it has numbers but if any one can tell me the designation 009,050 etc. I would appreciate this.
The part numbers are: 0231 176 048 and 021 905 205 A-B
Also, I looked on Jake Raby's site and couldn't find any specific info. on cams, can anyone be more specific on the cams to use (I understand he has several different grinds he uses.)

[roadtrp204]

I have a 2.0L in my 914 with stock heads and valve train, aftermarket FI, and will have 96mm P/L's (engine is waiting on body work, so I don't have real time experience yet with all the new configurations). I asked your same question after making a wrong decision on cams and the response was that the Webcam 86 works well for an unmodified engine (heads, rods, and valve train). Power range is from 2500 to 5500, which isn't pushing the components out of their designed rpm range. The 86a and above cams require considerations to head flow and engine rpm abilities to reach their full potential.

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Chris
75 914 2.0L

[Jake Raby]

Camsa re very touchy, especially with stock FI...

I use no more than a 73 grind from web on stock FI engines.. An 86 works great with everything stock, including CR, while my version of the 86a loves headwork, extra CR and 96's...

On my limited displacement beasts, I keep these 3 grinds, for healthier engines, all my cams are customs..

[pbanders]

Originally posted by echocanyons:
Is there any way to tell the make of this distributor, I am sure it has numbers but if any one can tell me the designation 009,050 etc. I would appreciate this.
The part numbers are: 0231 176 048 and 021 905 205 A-B

I looked up 0 231 176 048 in the Bosch Ignition Products catalog, it's for the 1975 Porsche 914 1.8L, and 1975 VW Type 2.

Brad Anders

[echocanyons]

Brad,
Thanks for the reponse I think I will change to the 050 over and see how it goes.
The cam will have to come later.
Kelly