3.0L vs. 3.2L for racing?

Hey gang!

I am buying a 911 race car this year and am a bit mystified with engine choices. I know the 3.0L was a great engine for racecars, lots of miles with no rebuilding. How does the 3.2L compare in reliability/power/overrev tolerence to the 3.0L engine? I'm buying a 69-73 car but don't want the 2.X litre engines, I have heard they are not great race motors....

Any thoughts? Thanks! Chris Streit

Any thoughts?

Well, the 3.0 is famously reliable, but the 3.2 is similar in reliability, I think. I believe they sometimes have valve guide problems, but them so do 3.0 engines after a bunch of miles.

A properly built 2.7 to racing specs like the RS version, has been called the 'most charismatic' motor ever put in a 911. I gather that it's a real handful!

But really, the 3.2 engines are simply more powerful. I believe you can get them to 250-270 hp without too much trouble. That kind of power would be useful on a track.

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'83 SC

What type of racing do you plan on doing? Do you want to be competitive or just get on the track? What is the approximate budget for this conversion project?

Well mostly Midwest Council SCC and VSCDA racing. My budget, well, I have several cars lined up, some with 2.X litre motors and others with 3.0 and 3.2 litre motors. Have hear less than flattering maint. characteristics of the 2.x motors and wanted to get some other opinions.

http://cgi.ebay.com/ebaymotors/aw-cgi/ebayISAPI.dll?ViewItem&item=535951381&r=0&t=0
Check this motor out.


[This message has been edited by 89911 (edited 01-02-2001).]

Check out the rules and classifications for any group you're considering racing with. Swapping in a new engine will often put you in a 'modified' class where you're up against guys with cutting-edge (and bank account busting) cars, where the light weight of your earlier car can actually lead to penalites.

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Jack Olsen
1973 911 T (3.6) sunroof coupe

Jack took the words out of my mouth. READ THE RULES AND CLASSES. If you don't care about being competitive then just go for anything that floats your boat. This is personnally where I fit in. However if you have aspirations to actually place in a race you are looking at numbers like $200K to start and $100K per year to run the kind of hardware that will get the pole. This also of course assumes that you are a competitive driver. That's for SCCA and PCA GT class racing. And that's not the top of the heap either.

THanks for the info.

I rented the same kind of car last year and would like to race in the same classes...

Cheers!