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Old 09-21-2017   #41
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,704
Default Re: So I had a bit of blowby...

Quote:
Originally Posted by tpepmeie View Post
The bank-to-bank comparison is interesting. Cam timing?


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Todd, I don't have an explanation. I know Pete does a great job in setting up the
cams. However, the L v R relationship between banks is consistent w how it was
prior to the engine work. Pete cc'd the heads, and chambers were all 40cc. However, the left bank certainly benefitted from the rehab.
Not sure if there is a correlation, but the right side also has a tendency to run somewhat richer than the left.
Pete also has observed that #8 on LT5s also has a tendency to have the highest compression #s.
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Old 09-22-2017   #42
Pete
 
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Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,679
Default Re: So I had a bit of blowby...

Dom,
Yes your right can not tune drivability on the dyno, dyno is only good for WOT.
Even on Dyno i always play it safe dont need blowing up a motor, i only take risks with my Z take it to the limit.

I like some people think they are tuners cause they took a reputable shops chip and tuned in another 4 RWHP and all they did was add 2 degrees of timing so now they are expert tuners what a crock of ****.
I get more power by putting 2 less gallons of gas LMAO.

Best way to tune a camed motor is to have the car in person.

Pete
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'91 #1635 PoloGreen 350 LT5
11.09 @ 129.27
11.04 @ 128.86
474RWHP 400RWTQ
http://www.youtube.com/watch?v=SFNFOhGGlR4
http://www.youtube.com/watch?v=ZlRIOMwaDYY
https://sites.google.com/site/peteszr1garage
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Old 09-22-2017   #43
Pete
 
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Join Date: Dec 2003
Location: Chicagoland,IL
Posts: 2,679
Default Re: So I had a bit of blowby...

Quote:
Originally Posted by tpepmeie View Post
The bank-to-bank comparison is interesting. Cam timing?


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Todd if you look at Doms previous #'s a couple of his left bank cylinders were just as high as the right bank.
Previously his left bank was weaker then the right bank now both banks have increased a little.

As Dom mentioned i have noticed #8 cylinders most always have higher #'s.
I dont know why will research it some more.

Pete
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'91 #1635 PoloGreen 350 LT5
11.09 @ 129.27
11.04 @ 128.86
474RWHP 400RWTQ
http://www.youtube.com/watch?v=SFNFOhGGlR4
http://www.youtube.com/watch?v=ZlRIOMwaDYY
https://sites.google.com/site/peteszr1garage
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