C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

'87 Cam Specs

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Old Jul 20, 2005 | 12:18 AM
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Default '87 Cam Specs

Does anybody have handy the open/close valve angles for a 1987 cam? I'm messing around with DesktopDyno 2000 and need those values. TIA!!
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Old Jul 21, 2005 | 03:59 PM
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ttt
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Old Jul 21, 2005 | 04:03 PM
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87 L98 14093643 Dur In/Exh 294'/294' Dur@.050" 202'/206' Lift (w/1.5) .403"/.415" LobSep 114.5'
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Old Jul 21, 2005 | 04:45 PM
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Originally Posted by vader86
87 L98 14093643 Dur In/Exh 294'/294' Dur@.050" 202'/206' Lift (w/1.5) .403"/.415" LobSep 114.5'
I have almost same data from the 1999 GMPP catalog, it is same except it states Lobe Seperation at 115 degrees. ??

Has anyone ever had any luck with DD2000 and the TPI setup?
I had difficulty getting a realistic output curve for a tpi engine. Maybe there is some fudge facters that I didnt input. All my power curves were at unrealistically high RPM's (for a tpi set up).
If anyone has the necessary data to give realistic figures, I'm all ears.
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