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stugray |
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 3,825 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None ![]() |
I have rebuilt a type IV a couple of times, but I was young & naive.
This will be a 2.0L with stock FI for vintage racing. 1 - How do I hook up the stock fuel pump line(s) to a fuel cell? 2 - are there any Cams other than the stock one that will give me increased performance while still using the stock FI? 3 - What compression ratio should I target? I am working that step right now - CC'ing the heads & setting the deck height. 4 - The CAM thrust bearing has just one side with the thrust plate on it. If I recall, when I upgraded my last 914, the guy at the performance shop gave me TWO with the thrust bearing on it (one for each side). Should I be looking for those? 5 - After splitting the case, there were 2 or 3 "bumps" that needed a little "flattening out" with a file. Can the case be damaged by trying to clean up the nasty spots, or is there a way for me to make sure to get it right? I imagine that the only thing I could do would be to remove all the studs and rub each side over some sandpaper taped down to a very flat surface... Any help is appreciated. Stu |
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Jake Raby |
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Engine Surgeon ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States ![]() |
QUOTE If I could machine them myself, I would CC them at every thousandth and make a nice lookup table. You'd waste your time.. All stock chambers are slightly different, so the variables in volume Vs. depth is always going to be different. Nothing is absolute after 4 decades of service, idiot mechanics and machinist working with the engine/ heads and etc. As the engine builder and designer the choices are yours. Success or failure is up to you, just like it is up to me on a daily basis. Lots has changed since October of 2010 when I posted about cam selection. Run your numbers, choose your CR target and machine to reach it. Then hope and pray that you get it right. Thats classic hot rodding defined. When practicing medicine or mechanics absolutes don't exist- ever. Run all the calculations that you want, then practical application will teach you a lesson. Good luck with it, thanks for your purchases. |
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