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RustyWa |
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Working Member ![]() ![]() ![]() Group: Members Posts: 610 Joined: 2-January 03 From: Kent, WA Member No.: 72 ![]() |
I forgot to take photos of this, but I might in a few days. On my rebuilt dizzy, I noticed that the cam lobe for the FI trigger points was at a different location than what my stock dizzy had it at.
Going from memory, on the stock dizzy, the point on the cam lobe was pretty much lined up to at the #1 spark. On the rebuilt, it was like 30-45 degrees off of this point. I can't remember if it was before or after #1. Anyone ever notice this before? Would it make a difference for the fuel timing? Doesn't the fuel charge just sit in the intake anyways waiting for the valve to open. I'll try to get some photos later on. |
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ArtechnikA |
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rich herzog ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None ![]() |
QUOTE(RustyWa @ Oct 6 2003, 08:18 PM) Doesn't the fuel charge just sit in the intake anyways waiting for the valve to open. DJet fires injectors in pairs, so two cylinders get squirted more-or-less in sequence with the intake valve open, the other two have the charge waiting in the port. i don't recall which two fire in which pairs, but i bet Brad Anders page has the whole deal. (i don't know nothin' 'bout no T-IV's ...) as for the point lobes lining up with anything in particular - i donno. on most cars you want the rotor pointing pretty much directly at the plugwire tower on the cap when the points open. the T-IV dizzy is keyed to go in only one way (unlike the 911 dizzies, f'rinstance, which have a drive gear...). the T-IV dizzy drive shaft has a gear, but AFAIK they're all the same - so once again - i donno ... |
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