LT1-LT4 Modifications 1993-97 Gen II Small Block V8

EFI connection two piece billet timing cover.

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Old 02-11-2014, 09:57 AM
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Originally Posted by FormulaJoe
When production does start and what not are you guys thinking you'll be able to make a cover with the mechanical WP hole or just the EWP cover?
No water pump hole. The cover will be a direct alternative to the timing cover included in this kit:

Old 02-11-2014, 11:36 AM
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Not to hijack but is the new style timing cover with the built in cam sensor available with a big block snout crank seal yet?
Old 02-11-2014, 01:51 PM
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Originally Posted by FormulaJoe
When production does start and what not are you guys thinking you'll be able to make a cover with the mechanical WP hole or just the EWP cover?
We will not. To make a long story short, moving the face of the timing cover forward means problems related to the optispark fitment and problems with the 1x cam reluctor and cam sensor housing we currently have in production. We are not going to pay the tooling costs, sand cast mold cost, additional prototyping for a new 1x cam reluctor and all of the minimums associated with a new set of cam signal components. Customers would be turned off by the increased costs.
Old 02-20-2014, 06:08 AM
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Well...it can be done.

What you are looking at:
  • segment of our 3D model to verify clearances
  • notice timing chain is behind cam sprocket
  • cam sprocket has clearance to be removed

It's definitely functional in that you can remove the cam timing sprocket for a cam swap. Reassembly of the cam timing sprocket is going to be very frustrating. Heck, it's frustrating enough without a timing cover in place...now you have half of the timing cover in your way.

However, this solution is better than pulling the crank hub and dropping the oil pan.

Thoughts? Go to production?
Old 02-20-2014, 08:21 PM
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I agree, this is still a better solution than removing the crank and dropping the oil pan. I think this should be a go for production. Especially considering this appears to be a straight forward change to the original production design without too many obstacles. I know I want one as soon as they are available.

Old 02-20-2014, 09:26 PM
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I'm subscribing to see when they become available.
Old 02-20-2014, 09:40 PM
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Originally Posted by S10Wildside
Well...it can be done.

What you are looking at:
  • segment of our 3D model to verify clearances
  • notice timing chain is behind cam sprocket
  • cam sprocket has clearance to be removed

It's definitely functional in that you can remove the cam timing sprocket for a cam swap. Reassembly of the cam timing sprocket is going to be very frustrating. Heck, it's frustrating enough without a timing cover in place...now you have half of the timing cover in your way.

However, this solution is better than pulling the crank hub and dropping the oil pan.

Thoughts? Go to production?
Just throwing this out there, had a long day and im exhausted so I may be missing something painfully obvious but do the pieces have to meet in a straight, flush line like that?

Would it be possible to notch the lower portion and make a tab on the upper piece so instead of connecting straight like " |---------| " the seam would be " |----\____/----| " to give more room to the cam sprocket?

I'm sure its technically possible, but I do not know how much more that would complicate production and increase cost or how feasible it would be.

FWIW I sold my NIB first gen 24x setup so I can purchase the new double roller style with billet cover. I have the cash ready to buy but if this is something being put into production I may wait on it.
Old 02-21-2014, 06:20 AM
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Originally Posted by Puck
Would it be possible to notch the lower portion and make a tab on the upper piece so instead of connecting straight like " |---------| " the seam would be " |----\____/----| " to give more room to the cam sprocket?
There's no room. Now you're into the crank seal area.

FWIW I sold my NIB first gen 24x setup so I can purchase the new double roller style with billet cover. I have the cash ready to buy but if this is something being put into production I may wait on it.
No promises on this timing cover. We will try to fit it into our production schedule, but it's not a top priority.
Old 02-21-2014, 11:10 AM
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Originally Posted by Valkyn
Not to hijack but is the new style timing cover with the built in cam sensor available with a big block snout crank seal yet?
Hey S10 can you let me know on this?
Old 02-21-2014, 11:22 AM
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Originally Posted by S10Wildside
No water pump hole. The cover will be a direct alternative to the timing cover included in this kit:

http://www.youtube.com/watch?v=tRuaq...ature=youtu.be
Old 02-21-2014, 11:37 AM
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Originally Posted by Valkyn
Hey S10 can you let me know on this?
Not yet. We are still running current production parts and have not yet made the time to manufacture this timing cover. The 3D solid model is done, I think tool paths are done...we just need the time to run them.
Old 02-21-2014, 04:40 PM
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Originally Posted by S10Wildside
There's no room. Now you're into the crank seal area.
DUH lol, figured I missed something simple in my half sleep posting.

Well I'll keep my eye on this, and once you guys have an ETA and pricing I'll decide whether to wait or just jump on the current new style kit.
Old 02-22-2014, 02:33 PM
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Originally Posted by S10Wildside
It will probably be in the ballpark of $900.00 for a 24x conversion kit with two-piece timing cover.
Subscribing!
Old 04-06-2014, 12:11 AM
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Any word on this yet, S10?
Old 04-14-2014, 08:00 AM
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Old 04-25-2014, 03:02 PM
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Originally Posted by 96silverram
Any word on this yet, S10?
We have not been able to make the time on the CNC mill to continue development. That's not to say this timing cover won't happen, but that this is the busiest time of the year and we must focus on current production and getting orders that have been paid for out the door before putting time into this timing cover. I have no speculation on timeframe...just as I have no speculation on our future workload.
Old 06-24-2014, 01:20 PM
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Cool New Progress!

Good afternoon Gents (And ladies?)!

We are at a point where we have some time to work on this again, and I have a small update for you.

I have come up with two possible solutions to make this happen and I'm looking for some feedback/input from you guys as to which direction to continue in.

Design 1: A revision of the last design I came up with for this cover, there have been minor changes to the opening, panel, and gasket. These changes include lowering the inside lip/edge on the bottom of the opening (closer to the the crankshaft) to provide around 0.200" additional clearance (vertically if it were mounted on the engine) to aid in removing the cam sprocket.

I also have opened up the "flange" around the rest of the opening by about .050" it's not much, but it helps a little bit with clearance for your hands to be in there.

In addition to these changes, I have moved the "locating pins" to the upper "corners" of the cover and will be using a standardized 3/32" Stainless steel locating dowel to align the two pieces.


Design 2: This is basically what Mike(S10Wildside) came up with initially but the split point is in the meaty part of the mounting "flange" which leaves more room for a decent width gasket to go in there. The other reason for the split here would be to use the factory locating dowels in the LT1 to align the two pieces.

This design will need some more changes and testing before it can be seriously considered. There is very limited room to move the cover forward with the LT1 hub in place without damaging the crank seal, and it may not be enough to clear the cam sprocket to swing the cover out of the way. On that note, the other possible issue I foresee is dangling the cover out of the way on the crank seal could potentially stretch the seal and cause an oil leak.



Here are some Images of the latest revisions of this prototype/concept.


Design 1:







Design 2:






Thanks in advance for your input, suggestions, comments, praise, support, etc, etc.

Feel free to make suggestions or ask questions regarding the design of this.

We have a laser now and gasket material that we can laser cut to make a gasket for just about any design, but keep in mind, the more complex your design suggestions are, the more fixtures and machine time we have, and that means more $$$ leaving your wallet


I'll be subscribed to this thread and will try to promptly reply to you guys.


Thanks,

Aaron
(EFI Connection CAD/CAM Developer, R&D Specialist, Uber Geek.)
Old 06-24-2014, 01:50 PM
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I really like the idea of a removable cover, but I think I like design 2 a little better. You would be using the factory dowels and the whole covers can be removed. I assume both of these designs would still accept a double roller timing chain? eg: Cloyes, etc.
Old 06-24-2014, 02:38 PM
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Originally Posted by 96silverram
I assume both of these designs would still accept a double roller timing chain? eg: Cloyes, etc.
Both designs will require our unique Cloyes double row timing set. We have no intentions of making a two piece timing cover for an optispark application.



We mill a 1x or 4x signal in these to support the application. Gen III LS-Series signal is 1x and Gen IV LS-Series is 4x.



Old 06-24-2014, 08:05 PM
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I like design 2 better also. The only thing that comes to mind with it is, if the "base" ever had to be removed it might be a monster to remove without damaging it if sealant was used when installed.

Of course this is only if the base had to be removed.


Great work guys, I love seeing the work from your shop!

Bill

(Guy who throws a bunch of wires together. )
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