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What are the specifications of a AP2 cam ?
Craig Torrens - March 30th, 2013 at 08:14 AM

Hi, can someone please tell me the specs for a AP2 cam ?

I know its an old grind and is a very mild cam, but thats about it !

Cheers


1303Steve - March 30th, 2013 at 01:09 PM

Here you go


Craig Torrens - March 30th, 2013 at 03:34 PM

so the AP2 is very very mild then !


matberry - March 30th, 2013 at 06:23 PM

:yes::lol:


VolksVair - March 31st, 2013 at 10:05 AM

Gees, if a motor had that cam in it, might as well call the motor a 2 stroke motor(No Cam):crazy::spin::lol:


cb john - April 1st, 2013 at 06:05 PM

I have very much the same question on cam SP-2...anyone?....1303Steve?


1303Steve - April 1st, 2013 at 07:04 PM

Hi

Never heard of a SP2 cam, are you sure its not a AP2?

Steve


cb john - April 1st, 2013 at 07:56 PM

Pretty much sure, it is very clear stamping..


matberry - April 1st, 2013 at 08:11 PM

SP2 might be a local regrind


vduboy - November 30th, 2014 at 07:36 PM

So been thread digging.. this motor of my bosses Karmann Ghia has a ap3 cam in it... obviously put in a long time ago when the motor was originally built. Anyone used one?


modnrod - November 30th, 2014 at 08:53 PM

AP3 cam looks like a nice little mileage cam.
Specs of 264 adv duration would probably give 222-228*@.050 or so depending on the ramp intensity, and .320" over the nose would probably allow 1.25 or possibly 1.4s rockers too, but with a recommended lash of .013" it might be too steep on the bottom, you would have to check the flanks to be sure.

This list of fuel economy cams from CB puts the AP3 bang in the middle.
http://www.cbperformance.com/searchresults.asp?cat=185 
Their currently very popular "Cheater" cam is very similar.

If it helps I've used a Norris 352S before for economy motors (10* less adv duration, but slightly more lift), and they rev clean to 5000 on a stone stock motor with completely unaffected idle quality or vacuum. Adds about 3 or 4 mpg and 5mph on a stock standard TP1600.
I rekn the AP3 would probably do similar things.


fish26 - November 30th, 2014 at 09:47 PM

Having had all in one form or another, the AP3 is the nicest all-round for the street, it was in a built for Buggy 1776cc with Dell centre mount and later twin 36 IDFs, pulled nice and hard but hit a wall @ 5800. After selling the engine it made 73 WHP and 97 WHP with 5-7psi turbo. Was raced in Variety bash in fully loaded heavy bug overtaking V8s up the hills.

Mate just built 1835cc stock modified carby and ported 40x35 heads with AP2 after taking out C35 in 1500 beetle, idles like stock and pulls real nice and crisp.

AP4 in light stroker with short ratios and serious heads is brutal

I remember reading somewhere that AP2 cams badged SP2 were used on the Volkswagen SP2 Brazillian Sports Car which I believe was 1700cc and had poor performance probably due to weight. Good looking car none the less.


vduboy - December 1st, 2014 at 04:57 AM

Awesome thanks for the replies. It can stay in then! Cheers guys.


turboboy - December 1st, 2014 at 11:00 AM

Hi
I had an AP3 in a 1835 back in the early eighties
Big valve head not much porting and a 2 barrel carb it was a nice combo but I wished I had gone bigger.


vduboy - December 1st, 2014 at 11:06 AM

Thanks, this is only going in a mild 1600 motor for the bosses Kg so should be enough for it. He is only a poser anyway...:lol:


Craig Torrens - December 1st, 2014 at 08:49 PM

:lol: