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Compression ratios......explain :) please

  #1  
Old 05-08-2009, 10:16 AM
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Default Compression ratios......explain :) please

Okay,
Not sure if this is in the right place.

This is why I prefer to get stock cars and build them myself.
But I can't complain because I got a good trade....I think?

Anywhoo.. so i found out that my car's compression ratio has been changed from a 9:6 to a 9:1.

Elaborate on this for me please. What sort of power gains has been gotten etc etc.

Thanks
 
  #2  
Old 05-08-2009, 10:18 AM
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If I remove the turbo setup and just put headers and exhaust, would this create any problems?
 
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Old 05-08-2009, 10:30 AM
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I don't wanna make myself look or sound ignorant.
I was searching Wikipedia and I might have mistyped.
Is it a 9:6 CR or a 9.6:1 CR changed to 9:1 CR?
I think that one (9.6:1 CR changed to 9:1)sounds right because I was watching a video http://www.5min.com/Video/Engine-com...io-cc-92141428 on the combustion process and how they arrive at the CR and I highly doubt that it could be 9:6.
That would mean then, that there is a clearance volume of 6 and a swept volume of 3?
That don't sound right.
I told y'all by the time I finish with this car I will be a honda genius
 

Last edited by islandtuner; 05-08-2009 at 10:36 AM.
  #4  
Old 05-08-2009, 10:31 AM
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Originally Posted by islandtuner View Post
If I remove the turbo setup and just put headers and exhaust, would this create any problems?
Yes it will. Im guesing the car has been tuned for the turbo setup so the fuel to air ration has been adjusted along with timing. If you just take off the turbo and slap on the stock headers and intake the car will still be expecting the same amount of extra air the turbo was forcing in, so it will inject more gas cause you to burn too much fuel. So your best bet would b to buy a stock ecu and switch it out with the one you have now, then revert everything back to stock. Again you have yet to post pictures of car after members have told you to post them so we could see your setup. You havent even listed the parts so we have know idea how good of a build it is.
 
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Old 05-08-2009, 11:18 AM
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I have posted pics and listed the parts in another post
 
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Old 05-08-2009, 11:30 AM
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and also in another post i said that the ecu is a stock OBD2 and there aren't any big fuel injectors just stock. I will check to see if there is an upgraded fuel pump.
 
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Old 05-08-2009, 11:38 AM
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Just for cronincs sake....and i'm not being rude....I'll list the parts for the third time.

1994 HONDA CIVIC HATCHBACK EG4 SERIES
D16Y8 ENGINE - OBD2 ECU - NOT CHIPPED
AEM INTAKE SYSTEM
XSPOWER - BLOWOFF, WASTEGATE, INTERCOOLER
GENERIC T04E TURBOCHARGER
AEROSPEED 10.2MM TRIPLECORE HI PERFORMANCE WIRES

RC INJECTORS - NOT INSTALLED

WISECO PISTONS
EAGLE RODS
STOCK CAMSHAFT

And that my friend......is it.
 

Last edited by islandtuner; 05-08-2009 at 12:27 PM.
  #8  
Old 05-08-2009, 11:39 AM
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Oh....

EXEDY RACING CLUTCH......NOT SURE THE STAGE.
 
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Old 05-08-2009, 12:26 PM
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and for the pics u can go to the SHOW OF YOUR HATCH post.......I'm on the 3rd page.
 
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