Cam talk
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Post Fiend
Joined: Oct 2007
Posts: 10,501
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From: Faibanks Ak.
Cam talk
I wanted to start a thread about aftermarket cams.
What you have used and what you liked about them.
The only two that I have heard of is typefour and delta are there more.
What cam have you used with a turbo and what rpms was your peak boost.
The reason I am checking is, this spring or summer I need to build a new idi and want to build it to get it's peak torque at a low rpm, generally peak torque and peak boost runs together.
What has been your experience.
What you have used and what you liked about them.
The only two that I have heard of is typefour and delta are there more.
What cam have you used with a turbo and what rpms was your peak boost.
The reason I am checking is, this spring or summer I need to build a new idi and want to build it to get it's peak torque at a low rpm, generally peak torque and peak boost runs together.
What has been your experience.
Postmaster
Joined: Nov 2008
Posts: 2,851
Likes: 3
From: Buckley, WA
Delta 206-2 cam grind.
stocker is something like:
Int: .253lobe lift/185duration @ 50
Exh: .253lobe lift/185duration @ 50
new cam is:
Int: .261lobe lift /185 duration @ 50
Exh: .255lobe lift/197 duration @ 50
also much quicker ramp rates and slightly less valve overlap (now sure how much, and cams are not my forte')
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Post Fiend
Joined: Oct 2007
Posts: 10,501
Likes: 5
From: Faibanks Ak.
What rpm do you get your peak manifold pressure at. Did they give you any rpm specs with it,as in where the best power range is at.
I want to go bassackwards than most people, as in less rpm's.
I want to go bassackwards than most people, as in less rpm's.
Laughing Gas
Joined: Aug 2003
Posts: 919
Likes: 4
From: Newberg Oregon
then you need my torque cam, brings in boos 100rpm lower and starts pulling hard an 1200
Postmaster
Joined: Nov 2008
Posts: 2,851
Likes: 3
From: Buckley, WA
on a side note...have you ridden in justins truck yet?
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Post Fiend
Joined: Oct 2007
Posts: 10,501
Likes: 5
From: Faibanks Ak.
Typefour I'm pretty sure the one you have will be closer to what I want as it is for lower rpm, and I have no use for the high end, with what I want.
I figure most aftermarket cams are going to be the other way.
You do have a turbo on yours don't you, where is your peak boost.
I figure most aftermarket cams are going to be the other way.
You do have a turbo on yours don't you, where is your peak boost.
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Posting Guru
Joined: Jul 2004
Posts: 1,627
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From: West Valley Utah
I have not found any cams, except stock other than the 2 mentioned on here. I did find another 6.9/7.3 idi information/timeline page:
Rebuilding the International 6.9/7.3L Powerstroke Engine: Engine Builder
Rebuilding the International 6.9/7.3L Powerstroke Engine: Engine Builder
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