986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Blew my engine. Anyone here build a 3.8 or 4.0?

jaykay · 09-03-2015, 05:11 PM

Yes I should qualify 100hp as 100 over the stock 3.2.

And so we are talking 8 to 12% projected peak power increase for the 3.8 over the 3.6. This change in displacement will perhaps put us at 375 BHP peak while having to upgrade the crank, crank carrier, con rods...with no head options to fully realize the gains to be had. Now I see where the expense is for little result.

How is it that no crank, carrier, conrods are required for the 3.6?

Doesn't Eric at HRG have a 4.0 in his car.....5 chain? I guess with a race car and motec you can just load up a 3 chain in a car that originally had 5 chains.

Jeez I would hope that the result would be better than than the 944 turbo S and big aftermarket turbo I drove on the weekend

09-03-2015, 05:11 PM	#3
jaykay Registered User Join Date: Sep 2009 Location: toronto Posts: 2,668	Yes I should qualify 100hp as 100 over the stock 3.2. And so we are talking 8 to 12% projected peak power increase for the 3.8 over the 3.6. This change in displacement will perhaps put us at 375 BHP peak while having to upgrade the crank, crank carrier, con rods...with no head options to fully realize the gains to be had. Now I see where the expense is for little result. How is it that no crank, carrier, conrods are required for the 3.6? Doesn't Eric at HRG have a 4.0 in his car.....5 chain? I guess with a race car and motec you can just load up a 3 chain in a car that originally had 5 chains. Jeez I would hope that the result would be better than than the 944 turbo S and big aftermarket turbo I drove on the weekend __________________ 986 00S Last edited by jaykay; 09-03-2015 at 05:28 PM.