Judging cylinder bore wear and pistons

For classic Porsche 911 content

Moderators: hot66, impmad2000, Barry, Viv_Surby, Derek, Mike Usiskin

Post Reply
jwhillracer
Me and DDK sitting in a tree! KISSING
Posts: 2907
Joined: Fri Apr 18, 2008 5:58 pm
Location: Sunny Somerset, just above the water....

Re: Judging cylinder bore wear and pistons

Post by jwhillracer »

Sounds a much better use of time and money!

JW
Life's a single timed run with no practice....
1963 Porsche 109 Junior
1970 914/6 2.4E/Webers
1970 VW Beetle project
1972 911 Hillclimber part of the family for 40 years!
2006 Hymer Merc Starline 630
2000 T4 Van LPG
2000 Golf V5 Estate GT
Top
911hillclimber
Nurse, I think I need some assistance
Posts: 20724
Joined: Mon Mar 10, 2008 6:26 pm
Location: West Midlands

Re: Judging cylinder bore wear and pistons

Post by 911hillclimber »

Do you think it would be like this afterwards Jonathan?

https://youtu.be/caEdq_AuMQc
73T 911 Coupe, road/hillclimber 3.2L
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
Top
jwhillracer
Me and DDK sitting in a tree! KISSING
Posts: 2907
Joined: Fri Apr 18, 2008 5:58 pm
Location: Sunny Somerset, just above the water....

Re: Judging cylinder bore wear and pistons

Post by jwhillracer »

911hillclimber wrote:Do you think it would be like this afterwards Jonathan?

https://youtu.be/caEdq_AuMQc
I reckon that’s an EXTRA 7500rpm compared with the 3.2!!
750rpm extra plus maybe 20-30 bhp more should give a useful boost, probably saving a gear change or two at some venues - 2 less probably saves about 1 sec.

JW
Life's a single timed run with no practice....
1963 Porsche 109 Junior
1970 914/6 2.4E/Webers
1970 VW Beetle project
1972 911 Hillclimber part of the family for 40 years!
2006 Hymer Merc Starline 630
2000 T4 Van LPG
2000 Golf V5 Estate GT
Top
Post Reply

Return to “Pre 1974 - Porsche 911 (longhood)”