performance question.
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
Originally Posted by DJdemon6696
what do you think about the 2 Dyno sheets?
Elder User
Joined: Oct 2006
Posts: 843
Likes: 1
From: Redmond, WA
Originally Posted by Conanski
Looks about right, correctly shows that slightly less duration shifts the powerband down. One note...the 5.0/5.8 heads have 1.78" and 1.46" valves.
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Posting Guru
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yeah i know those are not real wheel numbers.. and the valves have been adjusted to the dyno its the same just about 10 less Hp
but you guys didn answer this question
Question:
do i need any other parts when i change the cam ?
this is the PArt.. what is it missing and what do i need?
http://store.summitracing.com/partde...t=CCA-35-255-5
will stock pushrods and springs work ?
i know what your thinking its time to change the timing chain also.. but it has already been changed 3 years ago.. so it isnt that old..
but you guys didn answer this question
Question:
do i need any other parts when i change the cam ?
this is the PArt.. what is it missing and what do i need?
http://store.summitracing.com/partde...t=CCA-35-255-5
will stock pushrods and springs work ?
i know what your thinking its time to change the timing chain also.. but it has already been changed 3 years ago.. so it isnt that old..
Senior User
Joined: Aug 2007
Posts: 388
Likes: 0
From: CANADA
Originally Posted by DJdemon6696
Question:
do i need any other parts when i change the cam ?
this is the PArt.. what is it missing and what do i need?
http://store.summitracing.com/partdetail.asp?part=CCA-35-255-5
will stock pushrods and springs work ?
i know what your thinking its time to change the timing chain also.. but it has already been changed 3 years ago.. so it isnt that old..
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Originally Posted by DJdemon6696
here is my 0-60 time its about 10 to 11 seconds... here is the video proof http://www.youtube.com/watch?v=VxBojdmg9JI
P.S. Hre's the video clip.. http://www.youtube.com/watch?v=x0La1YF2PXA
Last edited by Conanski; Nov 7, 2007 at 04:42 PM.
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Posting Guru
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not bad... but isnt it shifting a little to low? seems like its shifting at 3500 and it suppose to shift at 4200 - 4400
and its sounds good
strange tough.. my almost stock is just a little fasten than yours.. if i put cam i will walk circles around you
lol.. kidding bud
check that shift piont its to low..
and its sounds good
strange tough.. my almost stock is just a little fasten than yours.. if i put cam i will walk circles around you
lol.. kidding budcheck that shift piont its to low..
Elder User
Joined: Oct 2006
Posts: 843
Likes: 1
From: Redmond, WA
Originally Posted by Conanski
Well here's the news... I did a few runs and it averages about 11-12 seconds. I got a video clip too and will post it up when I get a chance. I have to say after seeing your video clip I want gearing now... or maybe those new heads will come sooner rather than later.
P.S. Hre's the video clip.http://www.youtube.com/watch?v=x0La1YF2PXA
P.S. Hre's the video clip.http://www.youtube.com/watch?v=x0La1YF2PXA
It sure does look like its shifting low if that is WOT (looked to be about 3500 or so??). My truck shifts at 4800-5000 at WOT on stock tune.
That crane cam should keep you pulling well above 4500....
If you were a bit closer... I might have to show you what the wee little 5.0 can do when properly equipped! A bit too far north for that kind of journey... unless you have some killer steelhead, or atlantic salmon runs.
Then I might justify it!
Good luck with the new heads
You might want to consider purchasing (or borrow) a wideband and new fpr if your tune is stock... I run a tad bit lean above 4500 rpm on iron heads 306 cid and 19#'ers. I bet your induction demands would exceed the tune.
Nothing a proper burn couldn't remedy.
Last edited by Mr. M; Nov 7, 2007 at 10:35 PM.
Elder User
Joined: Sep 2005
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From: Orangeville, Ontario
Man, I can't wait to take out my truck and get a video.. I swear it's a freak of nature or something. Thing rips.. just gotta wait to e-test it to throw a cam in.. don't ya think? Should accent the GT40s I'm getting nicely.
FTE Legend
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From: Ottawa, Ontario
The video is from just one of the runs I took, it was hard to find a vacant piece of road around here and it was getting dark before I had a chance to record the shot.. way too many cars and wild turkeys runnin' around.. yes I managed to find a hugh flock of turkeys that seemed intent on playing roulette with the traffic.. me included. 
BTW.. that little chirp near the beginning is the tires regaining traction, I managed to get her sliding around pretty good on a few runs.
Anyway... With my foot firmly planted on the floor the 1-2 shift is at about 4500rpm, the 2-3 shift is lower though. This is an issue I have seen with every AOD truck I have had.. it want's to shift early and there's not much you can do about it. That said, the bulk of the power seems to be below 4000rpm on this motor, I know it's got more in it and I'm sure the heads and intake are a bottleneck at that rpm. That's fine though, makes for fat low rpm power and gives me something to work on. I'm also sure more gearing would help performance.. always felt like the truck would benefit from 3.73 or 4.10s, I'll have to put that on the list as well.
BTW.. that little chirp near the beginning is the tires regaining traction, I managed to get her sliding around pretty good on a few runs.Anyway... With my foot firmly planted on the floor the 1-2 shift is at about 4500rpm, the 2-3 shift is lower though. This is an issue I have seen with every AOD truck I have had.. it want's to shift early and there's not much you can do about it. That said, the bulk of the power seems to be below 4000rpm on this motor, I know it's got more in it and I'm sure the heads and intake are a bottleneck at that rpm. That's fine though, makes for fat low rpm power and gives me something to work on.
I'm also sure more gearing would help performance.. always felt like the truck would benefit from 3.73 or 4.10s, I'll have to put that on the list as well.
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
Originally Posted by Mr. M
You might want to consider purchasing (or borrow) a wideband and new fpr if your tune is stock...
Elder User
Joined: Oct 2006
Posts: 843
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From: Redmond, WA
Originally Posted by Conanski
I know it's got more in it and I'm sure the heads and intake are a bottleneck at that rpm.That's fine though, makes for fat low rpm power and gives me something to work on. I'm also sure more gearing would help performance.. always felt like the truck would benefit from 3.73 or 4.10s, I'll have to put that on the list as well..
I'm also sure more gearing would help performance.. always felt like the truck would benefit from 3.73 or 4.10s, I'll have to put that on the list as well..4.10's are too much fun on stock tires! If you can gain access to a lift and a backlash gauge, the 8.8 setup takes half a day or so. I was surprised how easy it was...seemed like a daunting task at first. I've never cracked open the d44 (I outsourced that gear swap), but I imagine its a similar process. Except tearing open that whole front end, brakes, etc etc. might add a bit more time.
Originally Posted by Conanski
Yes.. I think that may be one of my next purchases, I'm curious where the air/fuel ratio stands and would like to optimize the current setup just to see what it's capable of. I already have an adjustable FPR with analog gauge on the fuel rail, but and electric gauge and A/F meter inside would certainly come in handy.
I think you'd be surprised where your A/F sits through the powerband. I'm guessing you have some lean spots as well. So maybe its good you keep it below 4000 as it sits today.
Keep us informed of any new toys!
Mike