Re: School me on Open Chamber VS Closed
[Re: JoesMopar]
#921937
02/06/11 02:22 AM
02/06/11 02:22 AM
|
Joined: Mar 2005
Posts: 7,052 Madera, CA.
MowP4rsn
master
|
master
Joined: Mar 2005
Posts: 7,052
Madera, CA.
|
Quote:
But I thought a closed chamber would reduce emmissions more because of the more complete combustion?
NOx is the result of high combustion temperature, so having less quench could help towards reducing that.
|
|
|
Re: School me on Open Chamber VS Closed
[Re: JoesMopar]
#921939
02/06/11 10:26 AM
02/06/11 10:26 AM
|
Joined: Jan 2003
Posts: 75,012 U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 75,012
U.S.S.A.
|
Quote:
I see, that makes sense. I didn't think they worried about that in the 60's though. So basically the point to open chambered heads is strictly emissions and nothing performance orientated whatsoever.
EXACTLY , but yes they started to worry about that stuff in the 60's , califorina cars were the first to have air pumps in the late 60's
|
|
|
Re: School me on Open Chamber VS Closed
[Re: superbeedave]
#921943
02/06/11 01:40 PM
02/06/11 01:40 PM
|
Joined: Jan 2003
Posts: 75,012 U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 75,012
U.S.S.A.
|
Quote:
So with that being said, The 10.1-1 compression that was advertised in 69 & 70 on the 383,440's with the 906 heads really wasn't true? More like 9.5-1. Would this be a true fact?
I can't say for 70 because the piston CH changed but the 68-69 383 HP is about 9.2 as delivered , piston is .0025 in the hole , head is 90 - 92 CC, yes Chrysler OVER RATED compression ratios on the 383 and I am sure others
|
|
|
Re: School me on Open Chamber VS Closed
[Re: JohnRR]
#921946
02/07/11 12:19 AM
02/07/11 12:19 AM
|
Joined: Mar 2005
Posts: 7,052 Madera, CA.
MowP4rsn
master
|
master
Joined: Mar 2005
Posts: 7,052
Madera, CA.
|
Quote:
Quote:
I see, that makes sense. I didn't think they worried about that in the 60's though. So basically the point to open chambered heads is strictly emissions and nothing performance orientated whatsoever.
EXACTLY , but yes they started to worry about that stuff in the 60's , California cars were the first to have air pumps in the late 60's
But NOT MOPARs sold in California, only the GM and Ford brands.
|
|
|
|
|