6.1 cam degreeing-in a 5.7
#2269111
03/14/17 01:53 AM
03/14/17 01:53 AM
|
Joined: Nov 2003
Posts: 1,890 Pittsburgh,PA
RTSrunner
OP
top fuel
|
OP
top fuel
Joined: Nov 2003
Posts: 1,890
Pittsburgh,PA
|
I know it's been asked before about putting a 6.1 cam in a 5.7,I've asked myself.What is the general consensus as to what degree of advance it should be installed at? I've read 4,6 and 8 degrees,guessing it differs to application.Mine will be in an ,04 Durango and in an otherwise stock engine.I started to gather parts to rebuild my blown up 5.7 in my Durango,but found a new Mopar long block that had a 6.1 cam installed,but with the OE chain.I plan on using a Crower or Comp Cams adjustable set to be able to degree the cam. Thanks for any advice~RT
|
|
|
Re: 6.1 cam degreeing-in a 5.7
[Re: RTSrunner]
#2272670
03/19/17 11:56 PM
03/19/17 11:56 PM
|
Joined: Feb 2009
Posts: 773 Crofton, Ky.
rattler
super stock
|
super stock
Joined: Feb 2009
Posts: 773
Crofton, Ky.
|
I put a 6.1 cam in my 5.7, but I just installed it straight up. am I in for problems? I never heard anything about advancing it. I haven't started the motor yet, but it is installed.
1957 Dodge truck, Snakeskin Green with a little stroker motor. 1964 Plymouth Savoy wagon ( my new project)
|
|
|
Re: 6.1 cam degreeing-in a 5.7
[Re: RTSrunner]
#2278078
03/28/17 11:50 PM
03/28/17 11:50 PM
|
Joined: Feb 2009
Posts: 773 Crofton, Ky.
rattler
super stock
|
super stock
Joined: Feb 2009
Posts: 773
Crofton, Ky.
|
Can you just advance the timing with offset keys ( if so, who has them?). Or do I need a high dollar adjustable timing sets?
1957 Dodge truck, Snakeskin Green with a little stroker motor. 1964 Plymouth Savoy wagon ( my new project)
|
|
|
Re: 6.1 cam degreeing-in a 5.7
[Re: RTSrunner]
#2512073
06/23/18 10:18 AM
06/23/18 10:18 AM
|
Joined: Dec 2005
Posts: 1,462 Mrytle Beach SC
johnscudashop
pro stock
|
pro stock
Joined: Dec 2005
Posts: 1,462
Mrytle Beach SC
|
What was the conclusion on this... What did you end up doing. I have a 04 5.7 with VVT pistons eagle heads and a 6.1 cam. Im putting it in a 78 D100 with a stockish 727 and 323 gear... Im thinking advancing it also, but the question how far...According to the Larry Shepard g3 hemi engine book,A stock 6.1 cam has a 108 deg centerline and a eagle 5.7 cam is around 114 deg
Last edited by johnscudashop; 06/24/18 10:03 AM.
|
|
|
Re: 6.1 cam degreeing-in a 5.7
[Re: RTSrunner]
#2512757
06/24/18 09:29 PM
06/24/18 09:29 PM
|
Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
Drag Week Mod Champion
|
Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
|
John, degree cam and find out where it is. I rarely trust books. If it ends up where WO23 says, you will need to do something
Last edited by sixpackgut; 06/24/18 09:30 PM.
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
|
|
|
Re: 6.1 cam degreeing-in a 5.7
[Re: WO23Coronet]
#2517377
07/04/18 11:38 AM
07/04/18 11:38 AM
|
Joined: Dec 2005
Posts: 1,462 Mrytle Beach SC
johnscudashop
pro stock
|
pro stock
Joined: Dec 2005
Posts: 1,462
Mrytle Beach SC
|
The Cam was sitting at 121.5 ICL at tdc . this is a 04 5.7 with 09 Eagle 5.7 pistons and eagle heads.. 8 degrees from the 121.5 figure would be 113.5 ICL....Just out of curiousity I advanced it one tooth and put the ICL at 107.5.. Got to be a what to move it and even if I do, I will have to check the intake valve to piston clearance . At this point before I go further, I am wondering if its even worth it or find a cam with different specs.. Anyone one here got any opinions on this
Last edited by johnscudashop; 07/13/18 12:44 PM.
|
|
|
Re: 6.1 cam degreeing-in a 5.7
[Re: johnscudashop]
#2517967
07/05/18 02:37 PM
07/05/18 02:37 PM
|
Joined: Jan 2003
Posts: 16,376
dogdays
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 16,376
|
So the Larry Shepard-written book is WRONG. Surprise, surprise!
He's the guy who told us about the "thinwall" late blocks.
He's the guy who told us that all we needed to choose a camshaft was the lift because we were too stupid to understand 0.050 lift duration.
He gives engineers a bad name. Yet he still keeps getting published. He's like the writer who calculated the ET for a 1.000G acceleration from start line to finish line and came up with the quickest ET possible. I don't remember what it was, but probably hundreds of thousands of quicker ETs have been run.
End of rant.
R.
Last edited by dogdays; 07/05/18 02:37 PM.
|
|
|
Re: 6.1 cam degreeing-in a 5.7
[Re: RTSrunner]
#2518446
07/06/18 03:22 PM
07/06/18 03:22 PM
|
Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
Drag Week Mod Champion
|
Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
|
This site blows. Every time i try to post a picture it doesnt work. Anyway IC 121. Bump it a tooth is 107. Perfect
Last edited by sixpackgut; 07/06/18 03:23 PM.
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
|
|
|
|
|