Notices

compression ?

Thread Tools
 
Search this Thread
 
Old 13 May 2007, 06:41 PM
  #1  
p1prodrive
Scooby Regular
Thread Starter
iTrader: (3)
 
p1prodrive's Avatar
 
Join Date: Dec 2004
Location: Aka - Matt C
Posts: 1,521
Likes: 0
Received 0 Likes on 0 Posts
Default compression ?

if i were to build a engine with

2.0 cdb
2.5 crank
2.5 pistons
2.5 rods
2.0 p1 heads/cams

would this come to a 2.33cc or 2.5cc ?
also how close would the compression ratio be ? or what is it likely to be ?
Old 13 May 2007, 07:18 PM
  #2  
p1prodrive
Scooby Regular
Thread Starter
iTrader: (3)
 
p1prodrive's Avatar
 
Join Date: Dec 2004
Location: Aka - Matt C
Posts: 1,521
Likes: 0
Received 0 Likes on 0 Posts
Default

anyone ?
Old 13 May 2007, 10:33 PM
  #3  
p1prodrive
Scooby Regular
Thread Starter
iTrader: (3)
 
p1prodrive's Avatar
 
Join Date: Dec 2004
Location: Aka - Matt C
Posts: 1,521
Likes: 0
Received 0 Likes on 0 Posts
Default

any ideas on a nice build guys ?
Old 13 May 2007, 10:43 PM
  #4  
Mongo
Scooby Regular
 
Mongo's Avatar
 
Join Date: Feb 2006
Location: Oxford
Posts: 267
Likes: 0
Received 0 Likes on 0 Posts
Default

IIRC the 2.33 uses the 2.2 block and pistons 2.5 crank and rods.

Not too sure on the compression issue. Might not change
Old 14 May 2007, 12:14 AM
  #5  
p1prodrive
Scooby Regular
Thread Starter
iTrader: (3)
 
p1prodrive's Avatar
 
Join Date: Dec 2004
Location: Aka - Matt C
Posts: 1,521
Likes: 0
Received 0 Likes on 0 Posts
Default

so where do i find a 2.2 cdb then ?
Old 14 May 2007, 05:21 PM
  #6  
Slowboy Racing
Former Sponsor
 
Slowboy Racing's Avatar
 
Join Date: Dec 2005
Location: 10.68 QT mile in 2007 2.33 Type R ** Current 2002 Spec C 2.33 Track prepped.
Posts: 1,658
Likes: 0
Received 0 Likes on 0 Posts
Default

That’s a real mixed up list you have there, in brief
Stroked 2lt = 2.1 ish
Stroked 2.2 = 2.33 ish
Final compression ratios takes into account piston dish, deck height head cc and so on something you or the engine builder has to spec. And also the CP needs to be considered different from one application to the next on a non standard build Like the above.
Old 14 May 2007, 05:27 PM
  #7  
SSCJAY
Scooby Regular
 
SSCJAY's Avatar
 
Join Date: Mar 2007
Location: The right side of 30psi
Posts: 539
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by p1prodrive
if i were to build a engine with

2.0 cdb
2.5 crank
2.5 pistons
2.5 rods
2.0 p1 heads/cams

would this come to a 2.33cc or 2.5cc ?
also how close would the compression ratio be ? or what is it likely to be ?
I think you might struggle to fit 2.5 pistons in a 2.0 block as they are 7mm bigger diameter, and your cylinder liners would be a bit too thin.

Unless of course you get it bored and re sleeved.
Old 14 May 2007, 07:49 PM
  #8  
p1prodrive
Scooby Regular
Thread Starter
iTrader: (3)
 
p1prodrive's Avatar
 
Join Date: Dec 2004
Location: Aka - Matt C
Posts: 1,521
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by SSCJAY
I think you might struggle to fit 2.5 pistons in a 2.0 block as they are 7mm bigger diameter, and your cylinder liners would be a bit too thin.

Unless of course you get it bored and re sleeved.
obviously, goes without saying.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
the shreksta
General Technical
27
02 October 2015 03:20 PM
ALi-B
Other Marques
18
28 September 2015 08:29 PM
jmca
Drivetrain
2
28 February 2002 11:42 AM
robski
ScoobyNet General
1
25 May 2001 01:17 PM



Quick Reply: compression ?



All times are GMT +1. The time now is 04:28 PM.