Patriot gold with trex question..
11-29-2005, 07:37 PM
#21
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What effect would improper seat pressure and coil bind have on the performance of the car? I've been running unshimmed Patriot Gold's for nearly two years now without any mechanical problems, but the car has consistently dynoed lower than most other M6 T-ReX cars I've seen, despite having a "normal" powerband.
Josh
Josh
11-29-2005, 07:44 PM
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Originally Posted by Josh
What effect would improper seat pressure and coil bind have on the performance of the car? I've been running unshimmed Patriot Gold's for nearly two years now without any mechanical problems, but the car has consistently dynoed lower than most other M6 T-ReX cars I've seen, despite having a "normal" powerband.
Josh
Josh
Usually it will cause premature valve float. I have seen cases however of weak springs killing power overall.
11-29-2005, 08:00 PM
#23
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Sorry, I'm not trying to hijack the thread, I imagine this is related though. As far as valvefloat, I didn't see any on the dyno.
Could this be a case of weak springs killing power?
Josh
Could this be a case of weak springs killing power?
Josh
11-29-2005, 08:44 PM
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Originally Posted by Josh
Sorry, I'm not trying to hijack the thread, I imagine this is related though. As far as valvefloat, I didn't see any on the dyno.
Could this be a case of weak springs killing power?
Josh
Could this be a case of weak springs killing power?
Josh
11-29-2005, 08:54 PM
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It would be interesting to know. Of course, he probably could've made 15-20 more RWHP with a cutout, putting him pretty much at the "norm" for the cam.
Josh
Josh
11-29-2005, 08:56 PM
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so .075 shim is what i should run correct on all springs, under the seat...... all agreed....
thanks geoff im not sure who i talked to.. no name was spoken.....
thanks geoff im not sure who i talked to.. no name was spoken.....
11-29-2005, 09:18 PM
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Originally Posted by NX_CaGEdApE00
so .075 shim is what i should run correct on all springs, under the seat...... all agreed....
thanks geoff im not sure who i talked to.. no name was spoken.....
thanks geoff im not sure who i talked to.. no name was spoken.....
11-30-2005, 07:57 PM
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no that is just the specs on my sheet...
they differ??? Still confused..... Damnit i dont wanna mess this install up..
sorry for all the questions
they differ??? Still confused..... Damnit i dont wanna mess this install up..
sorry for all the questions
11-30-2005, 08:11 PM
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Originally Posted by NX_CaGEdApE00
got the springs...
installed
135@1.800"
Open
350@1.150"
Coil Bind
.710" lift/ 1.090"
How do i calculate this... since it states .710 lift???
installed
135@1.800"
Open
350@1.150"
Coil Bind
.710" lift/ 1.090"
How do i calculate this... since it states .710 lift???
Install Height=1.800"
Bind Height= 1.090"
1.800-1.090=.710"
We want to shim .050" from the bind height or 1.090+.050 or 1.140".
So if you are running a cam with .600" of lift you would want your install height to be 1.140"+.600" or 1.740". If your install height is 1.800" without shims you would need .060" of shim. Remember: Measure carefully.
11-30-2005, 10:40 PM
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Originally Posted by NX_CaGEdApE00
mine is .609/ .615....
so in reality .069"/.075"
ill probably do .075" all around.... but we will see how it measures
so in reality .069"/.075"
ill probably do .075" all around.... but we will see how it measures
Open
350@1.150"
Coil Bind
.710" lift/ 1.090"
1.090" + .050"= 1.140"
1.140" + .609"= 1.749"
If you start off with 1.800" of install height with no shims you will need .051". You will probably wind up with slightly more (say .060") because you will probably never see the full lift at the valve anyways.