Thorley Header Project Update
#1161
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#1163
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Crane rockers are the.. **** adds anywhere from 6-8 degrees to the cam and increases the lift.
The only problem I have is, that I'm now done with DOD, and hate the fact that the non DOD lobes have less lift. So, now I wanna cam. Probly go this route http://www.performancetrucks.net/for...d.php?t=438267
Look at his torque curve!
The only problem I have is, that I'm now done with DOD, and hate the fact that the non DOD lobes have less lift. So, now I wanna cam. Probly go this route http://www.performancetrucks.net/for...d.php?t=438267
Look at his torque curve!
EDIT:
Thunder Racing Custom Camshaft
"TR 220-112" - 220/220 .551/.551 112 LSA 1500-6500 RPM Power Band. Computer Tuning Required with automatic transmission cars. A very well balanced camshaft that makes excellent power across the entire RPM range. Due to the fast ramp rate of this camshaft, the use of 1.8 rockers is not recommended.
"TR 220-112" - 220/220 .551/.551 112 LSA 1500-6500 RPM Power Band. Computer Tuning Required with automatic transmission cars. A very well balanced camshaft that makes excellent power across the entire RPM range. Due to the fast ramp rate of this camshaft, the use of 1.8 rockers is not recommended.
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#1165
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William,
I have no idea what that particular nipple is for. I put a rubber cover over mine about 2 years ago. If someone knows what that nipple is, we'd all like to know.
Damn, when you read this at first....lol...
-Mike
I have no idea what that particular nipple is for. I put a rubber cover over mine about 2 years ago. If someone knows what that nipple is, we'd all like to know.
Damn, when you read this at first....lol...
-Mike
#1166
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Don't feel bad William.. I've got the same thing as well. At heavy and WOT is when mine happends.. Like you say, sorta sounds like a whistle... Gotta be a leak of some sort. Not sure if it's at the manifold, the DP/header weld, or something else....
Sounds like a couple of us have the same problem with some searching to do....
![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
Sounds like a couple of us have the same problem with some searching to do....
#1167
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Don't feel bad William.. I've got the same thing as well. At heavy and WOT is when mine happends.. Like you say, sorta sounds like a whistle... Gotta be a leak of some sort. Not sure if it's at the manifold, the DP/header weld, or something else....
Sounds like a couple of us have the same problem with some searching to do....
![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
Sounds like a couple of us have the same problem with some searching to do....
#1179
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William,...this is perfectly normal, its how the gasket is made. IDK why.
When I installed my TB spacer I noticed this is how the gasket is made and the gasket that came with it would had probaly caused a leak! It didn't have that nipple.
Here's mine Will!
![](http://pic70.picturetrail.com/VOL1874/11648276/22790097/385364217.jpg)