Patriot Dual Spring and Comp LSK Lobe Questions
11-01-2004, 09:19 AM
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Patriot Dual Spring and Comp LSK Lobe Questions I have the patriot dual springs and am still deciding on a cam. I like the comp lsk lobes because they are super aggressive (243 lobe has 653 lift) however I need to decide if the patriot duals can handle this cam lobe. Terry at race tech quoted the patriot duals as being able to handle this kind of lift but I am not able to get in touch with him to ask further questions. He made a previous post indicating the springs had a seat pressure of 140 and open pressure of 390 but did not indicated at what heights those pressures were generated nor the coil bind of the spring. Does anybody know what these values are for the patriot dual springs? Thanks.
11-01-2004, 10:00 AM
#2
Originally Posted by DAPSUPRSLO
I have the patriot dual springs and am still deciding on a cam. I like the comp lsk lobes because they are super aggressive (243 lobe has 653 lift) however I need to decide if the patriot duals can handle this cam lobe. Terry at race tech quoted the patriot duals as being able to handle this kind of lift but I am not able to get in touch with him to ask further questions. He made a previous post indicating the springs had a seat pressure of 140 and open pressure of 390 but did not indicated at what heights those pressures were generated nor the coil bind of the spring. Does anybody know what these values are for the patriot dual springs? Thanks.
135@1.800/350@1.150
Coil Bind is 1.100
11-01-2004, 12:56 PM
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Thanks, looks like they will take the .653 lift then as I will have .047 before coil bind left. I don't think three thousanths difference will make a big impact.
11-01-2004, 01:06 PM
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Originally Posted by DAPSUPRSLO
Thanks, looks like they will take the .653 lift then as I will have .047 before coil bind left. I don't think three thousanths difference will make a big impact.
11-01-2004, 01:49 PM
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My valves just showed up. They are Manley Race Master 2.02/1.60 ls1 valves. The locks that come with your springs (super 7s I think) are very tight on the exhaust valve, almost hard to get on. Is this normal? Thanks. They fit fine on the intake valve.
11-02-2004, 08:43 AM
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Originally Posted by DAPSUPRSLO
My valves just showed up. They are Manley Race Master 2.02/1.60 ls1 valves. The locks that come with your springs (super 7s I think) are very tight on the exhaust valve, almost hard to get on. Is this normal? Thanks. They fit fine on the intake valve.
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11-02-2004, 09:09 AM
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Originally Posted by DAPSUPRSLO
My valves just showed up. They are Manley Race Master 2.02/1.60 ls1 valves. The locks that come with your springs (super 7s I think) are very tight on the exhaust valve, almost hard to get on. Is this normal? Thanks. They fit fine on the intake valve.
11-02-2004, 12:13 PM
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It appears that my Manley exhaust valves may be out of spec. I will put a mic on them this evening to confirm but you can see a little difference visually in the grooves. I compared them to the intake valve and my stock exhaust valves. I am being taken care of however.
I'll let you guys no the difference between the two.
P.S. These locks fit all of the other valves I have tried fine.
I'll let you guys no the difference between the two.
P.S. These locks fit all of the other valves I have tried fine.
11-02-2004, 12:41 PM
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Originally Posted by DAPSUPRSLO
It appears that my Manley exhaust valves may be out of spec. I will put a mic on them this evening to confirm but you can see a little difference visually in the grooves. I compared them to the intake valve and my stock exhaust valves. I am being taken care of however.
I'll let you guys no the difference between the two.
P.S. These locks fit all of the other valves I have tried fine.
I'll let you guys no the difference between the two.
P.S. These locks fit all of the other valves I have tried fine.
11-02-2004, 04:37 PM
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Here are the results.
Stock Int: .980"
Stock Exh: .980"
Manley Int: .985" (hard to tell the difference between 5 thousanths)
Manley Exh: .840" (not hard to tell the difference between 14 onehundreths)
It appears the exhaust valve have a groove which is .14" too small. Well, looks like I will be getting some new valves from Manley.
P.S. There might not be any difference between the stock valves and the Manley intake at all. It is very hard to tell the difference with the mic I used of .005"
Stock Int: .980"
Stock Exh: .980"
Manley Int: .985" (hard to tell the difference between 5 thousanths)
Manley Exh: .840" (not hard to tell the difference between 14 onehundreths)
It appears the exhaust valve have a groove which is .14" too small. Well, looks like I will be getting some new valves from Manley.
P.S. There might not be any difference between the stock valves and the Manley intake at all. It is very hard to tell the difference with the mic I used of .005"
11-10-2004, 10:39 AM
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whatever happened on this?
Originally Posted by DAPSUPRSLO
Here are the results.
Stock Int: .980"
Stock Exh: .980"
Manley Int: .985" (hard to tell the difference between 5 thousanths)
Manley Exh: .840" (not hard to tell the difference between 14 onehundreths)
It appears the exhaust valve have a groove which is .14" too small. Well, looks like I will be getting some new valves from Manley.
P.S. There might not be any difference between the stock valves and the Manley intake at all. It is very hard to tell the difference with the mic I used of .005"
Stock Int: .980"
Stock Exh: .980"
Manley Int: .985" (hard to tell the difference between 5 thousanths)
Manley Exh: .840" (not hard to tell the difference between 14 onehundreths)
It appears the exhaust valve have a groove which is .14" too small. Well, looks like I will be getting some new valves from Manley.
P.S. There might not be any difference between the stock valves and the Manley intake at all. It is very hard to tell the difference with the mic I used of .005"
11-10-2004, 01:34 PM
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First off let me correct eh above statement by saying that it was 14 thousanths and not 14 onehundreths of an inch. That was an error on my part.
I called Manley and they took care of me asap. The valves were infact out of spec.
I called Manley and they took care of me asap. The valves were infact out of spec.
11-10-2004, 03:31 PM
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thanks for the update, I have a full set of Manley valves (NIB) that I am going to install soon...(PP gold springs, locks, etc.). I will check the valves asap. I appreciate the help.
