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les_garten les_garten is offline
Macht Schnell
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Join Date: Jun 2003
Location: PSL, FL
Posts: 861
Originally Posted by 356-930 View Post
Thanks for the study and info. I appreciate your offer of factory manual data. Thankfully, I have access to the factory manuals.
My donor engine was a '79 3.3 liter and it didn't have any of the switching controls you note were employed by Porsche. That's why I ran the Sun tests, to see how the distributor behaved without vacuum/pressure switching control. I'm satisfied it's ok as is. My only concern is potential damage to the control diaphragms seeing vac/press they might not see if the controls were in place. If the engine starts to mis behave in the future, I'll look first at the distributor.
I run an MSD ignition with an MSD boost retard module and can pull out an additional 15-deg of timing if needed. (It's really advantageous to low end performance to run substantial advance. I presently pull out 3-deg with the MSD - helping to keep the pin in the grenade handle.)
Again, Thanks.
What do you call "substantial" advance?
---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT
Old 04-07-2008, 09:55 AM
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