12200411 - A Few General Questions

[ezobens]

For the needs of your particular build, I think the EFIConnection timing cover would be your best choice. You can use that cover with EFIConnections double row timing set that has the CMP reluctor built into it. This cover would give you what you are looking for----Double row chain, CKP sensor, CMP sensor and not affect your stock distributor.

Jeff

Jeff,
Where can I see this cover/timing set?
EFIConnection's web-site leaves a bit to be desired. They seem to offer many products that aren't listed. A catalog would be ideal.
I've seen their modified Vortec cover that fits GEN I SBCs but it looks like it's simply the Vortec cover with a GEN I flange grafted on?
From my understanding, it still doesn't support a double row timing chain- If it does, they should list that detail on their web-site and they'd get a TON of sales!
I also don't see where where they offer a double row timing chain / reluctor combo?
I will be utilizing the 4x crank reluctor, which I don't think EFIConnection has re-tooled for GEN I / double timing chain applications.
Can you clarify?
Thanks!
Elm

[dave w]

Elm,
There will soon be a SBC / BBC distributor (small cap point style) that has both the '0411 4x crank sensor and the cam sensor. It will Not have provisions for the mechanical tachometer. The above mentioned distributor is patented! Pricing has not been determined. The first production run is scheduled in early 2014. Production runs are currently being quoted.

dave w

[ezobens]

Elm,
There will soon be a SBC / BBC distributor (small cap point style) that has both the '0411 4x crank sensor and the cam sensor. It will Not have provisions for the mechanical tachometer. The above mentioned distributor is patented! Pricing has not been determined. The first production run is scheduled in early 2014. Production runs are currently being quoted.

dave w

Dave,
Will this be a dual pickup distributor (4x and 1x sensors)? Will this be an EFIConnection item?
Sounds like a great idea but unless they sell the components individually, it still won't help with my specific application.
As stubborn as it sounds, I am not giving up my mechanical tach drive.
lol

[dave w]

Dave,
Will this be a dual pickup distributor (4x and 1x sensors)? Will this be an EFIConnection item?
Sounds like a great idea but unless they sell the components individually, it still won't help with my specific application.
As stubborn as it sounds, I am not giving up my mechanical tach drive.
lol

The distributor I've mentioned Is Not a product to / from EFI Connections. The distributor is dual pickup, using two individual factory sensors. At this point in time, I can Not reveal who's distributor it is. Mechanical drive is PO$$IBLE, but your not going to like the price! At this point in time, I Can Not post screen shots of the CAD drawings.

dave w

[ezobens]

The distributor I've mentioned Is Not a product to / from EFI Connections. The distributor is dual pickup, using two individual factory sensors. At this point in time, I can Not reveal who's distributor it is. Mechanical drive is PO$$IBLE, but your not going to like the price! At this point in time, I Can Not post screen shots of the CAD drawings.

dave w

Ahh. Cloak and Dagger stuff.. love it.
Any ballpark on when this product will be GA?

[ezobens]

It looks like the VSS provision that Keisler has on their SS700 trans is for the Ford style analog VSS.
I'm guessing that it will in NO way be compatible with the 12200411 PCM?
If not, I will need to research my options for an in-line VSS with the stock cable-
The problem is that the SS700 doesn't use the threaded GM style speedometer gear adapter (it's just a fitting with an o-ring that is held in place with a clamp like a distributor) so I may need to do some digging...
Elm

[dave w]

It looks like the VSS provision that Keisler has on their SS700 trans is for the Ford style analog VSS.
I'm guessing that it will in NO way be compatible with the 12200411 PCM?
If not, I will need to research my options for an in-line VSS with the stock cable-
The problem is that the SS700 doesn't use the threaded GM style speedometer gear adapter (it's just a fitting with an o-ring that is held in place with a clamp like a distributor) so I may need to do some digging...
Elm

JTR offers a drive shaft mounted VSS http://www.jagsthatrun.com/Pages/Par...ctor-Diff.html

Pics below show a custom built VSS assembly, similar to the JTR part.

dave w

[mecanicman]

It looks like the VSS provision that Keisler has on their SS700 trans is for the Ford style analog VSS.
I'm guessing that it will in NO way be compatible with the 12200411 PCM?
If not, I will need to research my options for an in-line VSS with the stock cable-
The problem is that the SS700 doesn't use the threaded GM style speedometer gear adapter (it's just a fitting with an o-ring that is held in place with a clamp like a distributor) so I may need to do some digging...
Elm

Post 18#, your covered

http://forums.corvetteforum.com/c1-a...delivered.html

[dave w]

Ahh. Cloak and Dagger stuff.. love it.
Any ballpark on when this product will be GA?

There has been a considerable amount of time / research / expense developing this distributor, so there is a need to keep things under wraps. The early design used the large cap HEI, which worked extremely well. The business decision to go with "as small as possible" is where everyone felt would be the most marketable to bring to develop. Not sure on the release date, most likely in the first 90 days of 2014.

dave w

[ezobens]

There has been a considerable amount of time / research / expense developing this distributor, so there is a need to keep things under wraps. The early design used the large cap HEI, which worked extremely well. The business decision to go with "as small as possible" is where everyone felt would be the most marketable to bring to develop. Not sure on the release date, most likely in the first 90 days of 2014.

dave w

Awesome-
Please keep us posted!
Elm

[lionelhutz]

Where can I see this cover/timing set?

The setup with the 1x cam signal on the front cover isn't available yet so not much detail. The picture does show double row timing gear sprockets.

You could use the LT1 kit for the double row timing chain. The water pump drive hole would have to be plugged.

[ezobens]

The setup with the 1x cam signal on the front cover isn't available yet so not much detail. The picture does show double row timing gear sprockets.

You could use the LT1 kit for the double row timing chain. The water pump drive hole would have to be plugged.

Is there a link that shows what you speak of?
I don't need the 1x cam signal from the front cover, only the 4x crank signal.
I see nothing on EFIConnection's site that shows a Gen I front cover with provision for a double row timing set, reluctor and CKP.
The ONLY cover I've seen so far that accommodates all 3 items is the billet cover offered by TPiS for close to $300.
Please provide a link so I can see what you are suggesting.
Thanks!
Elm

[lionelhutz]

Look at EFI Connections SBC page part way down.

http://www.eficonnection.com/temp/24x_coming_soon.png

EFI connection just sells 24X and 58X conversion stuff.

The 96-97 LT1 had a 4X wheel and cover on it. Not sure how well it clears a double row chain.

Why not just get a good single row chain?

[ezobens]

Look at EFI Connections SBC page part way down.

http://www.eficonnection.com/temp/24x_coming_soon.png

EFI connection just sells 24X and 58X conversion stuff.

The 96-97 LT1 had a 4X wheel and cover on it. Not sure how well it clears a double row chain.

Why not just get a good single row chain?

Ahhh.. Yes, this looks very similar to the TPiS billet timing cover that costs $300 (for just the cover) with the added CMP sensor modification.
EFIConnection's solution, while very slick, will most likely be very pricey.
I can't justify the cost for convenience factor if I can engineer a solution that better addresses my specific application at a fraction of the cost.
Just sayin'

I plan on essentially doing the same thing (CMP sensor still in the distributor) with a cast aluminum marine cover with the 4x reluctor at a fraction of the cost.
The 4x GM reluctor will clear a double roller chain if I put a spacer behind it (.150" or so from what I've read from others), which is simple enough to fabricate and also adding a sensor mount on the cover. I have a fairly expensive double row timing set that has less than 100 miles on it so pitching it and going back to a single is not an option.
I don't mind spending the money where necessary but in this case, I'd rather spend a little R&D time and spend the money on things I can't create on my own.
I appreciate the suggestions though and this is the kinda stuff I want to see and learn about-
Some of these things I'll end up using, others I won't but it's all good information regardless.
Thanks!
Elm

[Hog]

Ahhh.. Yes, this looks very similar to the TPiS billet timing cover that costs $300 (for just the cover) with the added CMP sensor modification.
EFIConnection's solution, while very slick, will most likely be very pricey.
I can't justify the cost for convenience factor if I can engineer a solution that better addresses my specific application at a fraction of the cost.
Just sayin'


Thanks!
Elm

TPIS actually makes the BILLET front timing covers that EFIConnection sells. $299 for a front timing cover.


Over on Third Gen forums, the forums that deal with teh 82-92 Camaro/Firbirds. There is a guy named Craig Moates that owns Moates, the company that sells EFI tuninge quipement and the like. Look up his profile his username is "Craig Moates"and he describes how he machined up a spacer that allows double roller timing chains using teh stock plastic L31/30 (Vortec 350/305) timing cover along with a crank position relcutor and crank position sensor. I think you are correct in your 0.150" spec IIRC.

peace
Hog