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Can't Decide TBI - TPI - MPFI

Half speed would make it easier to have more teeth. I think your underestimating the sensor...
 
Hey Dave, FWIW, the vortec blocks are the same as earlier 350`s....all they did was change the heads. The only other difference was 2 or 4 bolt mains.
That Vortec timing cover should work just fine.

Oh, and check this out: http://www.weswoodperformance.com/hei_distributor.aspx

I'm sure the old SBC does not have alignment pins in the timing cover like the Vortec timing cover does? See the arrows. I'm sure there will always be enough silicone sealant at my local auto parts store to fix a Vortec timing cover oil leak.:D

The Weswood Performance HEI looks good. I'm leaning toward a design that uses off the shelf factory electronic parts. Might be easier to find a factory electronic part late at night, in the middle of nowhere that way?:dunno:

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I'm sure the old SBC does not have alignment pins in the timing cover like the Vortec timing cover does? See the arrows. I'm sure there will always be enough silicone sealant at my local auto parts store to fix a Vortec timing cover oil leak.:D

The Weswood Performance HEI looks good. I'm leaning toward a design that uses off the shelf factory electronic parts. Might be easier to find a factory electronic part late at night, in the middle of nowhere that way?:dunno:
Wow, that`s the first time i`ve seen that...then again, i don`t see that many vortec timing covers:dunno:
I was not sure if you had seen that digispark.... I was thinking that it may be similar to what they use with the Electromotive setup for their DIS systems. I was thinking of running a late LT1 OBD1 system so I could run sequential.
 
I'm not familar with the swap of parts but those dowl pins wouldn't slow me down. Either remove them or drill holes... so what other obstacles are present?
 
I'm not familar with the swap of parts but those dowl pins wouldn't slow me down. Either remove them or drill holes... so what other obstacles are present?

Maybe the special bolts are a challenge? :dunno: I have not tried this conversion, so I'm still learning.:eek1:

dave w

Vortec Timing Cover w-Bolts.jpg
 
I looked around the DigiSpark website http://www.weswoodperformance.com/project_car_1991.aspx . I found this bit of information. Maybe all I need is a DigiSpark Distributor? They say the distributor uses off the shelf GM parts.

dave w

We have developed a new distributor that allows use of the '02/'03 Corvette LS PCM. The upgrade requires only installing the new distributor and swapping the wiring harness PCM connectors to interface with the new PCM.

Corvette 0411 Conversion DigiSpark.jpg
 
That was my thought when i posted the link.
The later LT1 sequential setup would be perfect for me, because I need to run the vacuum operated EGR.
 
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Just an update,

The 0411 Trigger Wheel I designed with 3D CAD is in the CNC Mill.

dave w

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Just an update,

The 0411 Trigger Wheel is out of the CNC Mill. More work to follow.

I need to remove the radius from the "teeth" part of the trigger wheel. Next is the sensor bracket.

dave w

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ah, the dreaed honey-do's....:doah:
 
ah, the dreaed honey-do's....:doah:
Darn honey do's! We should have known by this picture dave posted above...

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Almost finished with the fabrication for the sensor bracket.:D Then I'll spend time in CAD, and finally into the CNC machine.:doah:

dave w

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