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Old 05-03-2013, 01:00 PM   #81
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Originally Posted by Blackpanther99 View Post
I wonder how different tuning is also for a V-12.
No different than the 8, but with the added displacement, the throttle boddy becomes undersized

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Originally Posted by Lothar34 View Post
It's not a matter of the crank balance, it's that the firing order isn't evened out across the block. The project is awesome, but I'm worried it will shake itself apart without either balancing shafts or a custom crank. Do you know how many miles are on teh Suburban engine now?

And the 90-degree bank angle is fine for a V12. The angle should be some multiple of 360/# of cylinders. Most V12s are 60 degrees, but 90 works too (as long as the crank is designed correctly).
It will be fine up to a certain performance level. We understand that it's not a perfect firing order, but for this we don't care. Half the reason is we want to hear what it would sound like. We will find out a lot from this. This design is trial by fire.

(The suburban and the aircraft engine all had billet cranks of different designs. This is a test to try and cut down on production costs.)

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Awesome build!
Please make a video walk around. It would certainly put to rest those skeptics (myself included).

Also, why v12? It seems like v16 would be 100 times easier. You could leave the heads alone and just weld up the blocks. Also the head gaskets wouldn't have to cross your welds, which seems like a giant flaw in your design now. Are you planning on re-machining the entire head gasket surfaces on the block and heads?
We decided to go with a v12 because it is more practical. It's only 8.8 inches longer than a stock motor, so you can fit it in a variety of vehicles which could be street legal (or not ). It is also at 8.9L, which is plenty enough displacement for all kinds of things.

Of course we are surfacing the block and heads.

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Also can you hack two 122 Maggies together to put on top of that thing?
Yep.

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Originally Posted by stangtrader View Post
Hmmmm.seattle area,wheres about.id love to come see this beast in person since im ten min from downtown
We plan to start showing it once we get it running.

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Originally Posted by 1CAMWNDR View Post
Hmmmm. V4 based on a 4.8L....2400cc Motorcycle engine
It fits into a harley engine bay just nicely

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Originally Posted by Mattsv8 View Post
u should cut and modify 2 edelbrock vr intakes with 4 barrel throttle bodies. hp should go up to 800 to 1000 if u mod a good cam like a m4
What would you do for compression?
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Old 05-03-2013, 01:18 PM   #82
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A lot of people wanted to know about the V4
V12 LS1 Build-photo-1-.jpg
V12 LS1 Build-photo-4-.jpg
V12 LS1 Build-photo-6-.jpg

This is one that we pulled out of storage yesterday. It hasn't been dressed out, sleeved, or completed yet. These are remnants of the V12 build for the plane. With every v12 build, we can use the scraps to build one of these.

This is what it would look like with an intake on it for a motorcycle.
V12 LS1 Build-photo-5-.jpg
V12 LS1 Build-photo-7-.jpg

Obviously this isn't the intake that we would use on it, its just an example on size.

The block is a foot wide. The oil pump and water pump become over sized automatically, and you can buy any kind of performance LS1 part and use it.
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Old 05-03-2013, 01:19 PM   #83
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For those of you that would like to see a video, what kinds of things are you looking for (keeping in mind that this is not running as of now)?
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Old 05-03-2013, 02:43 PM   #84
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Awesome. Sick work. Can't wait to see one running.
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Old 05-03-2013, 03:00 PM   #85
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For those of you that would like to see a video, what kinds of things are you looking for (keeping in mind that this is not running as of now)?
I think they just want a walk around to see it's not a Photoshop. Like stangtrader, I'm in the area and I know a few of us LSx guys would love to see in person! Maybe e can come by to vouch for you?

Awesome work! What is your background? Done other projects like these before?
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Old 05-03-2013, 03:06 PM   #86
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Originally Posted by V12Baker View Post
A lot of people wanted to know about the V4
Attachment 401159
Attachment 401160
Attachment 401162

This is one that we pulled out of storage yesterday. It hasn't been dressed out, sleeved, or completed yet. These are remnants of the V12 build for the plane. With every v12 build, we can use the scraps to build one of these.

This is what it would look like with an intake on it for a motorcycle.
Attachment 401161
Attachment 401163

Obviously this isn't the intake that we would use on it, its just an example on size.

The block is a foot wide. The oil pump and water pump become over sized automatically, and you can buy any kind of performance LS1 part and use it.
I just saw 7 nice aftermarket pistons/rods for dirt cheap. Great use!
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Old 05-03-2013, 03:11 PM   #87
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This thing is so bad *** it could walk up and bitch slap the hell out of Chuck Norris and make him smile about it!

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Old 05-03-2013, 04:01 PM   #88
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What do you do for headgaskets?
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Old 05-03-2013, 04:02 PM   #89
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America, FUCK YEAH!
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Old 05-03-2013, 05:02 PM   #90
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This is awesome
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Old 05-03-2013, 05:04 PM   #91
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Yup a walk around video would be awesome.
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Old 05-03-2013, 05:17 PM   #92
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In love with this thread, can't wait to see and hear it run

Awesome work OP!
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Old 05-03-2013, 08:33 PM   #93
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Can you do a 2-stroke conversion on an LS1?
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Old 05-03-2013, 09:24 PM   #94
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Quick walk around video

https://vimeo.com/65439073
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Old 05-03-2013, 09:34 PM   #95
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Quick walk around video

https://vimeo.com/65439073
Nice! Let me be the first to say thanks for the video.
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Old 05-03-2013, 09:36 PM   #96
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I think they just want a walk around to see it's not a Photoshop. Like stangtrader, I'm in the area and I know a few of us LSx guys would love to see in person! Maybe e can come by to vouch for you?

Awesome work! What is your background? Done other projects like these before?
We are in the midst of a 427 Mystery Motor (original block) build, so thats definitely a possiblity when we switch 100% of our focus to the V12.

Motorcycles to blown alcohol dragsters to airplanes. Started when I was very young. I can't think of anything I haven't worked on.

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What do you do for headgaskets?
Right now we're cutting them with an industrial sheer, but we are definitely going to transition to custom headgaskets.

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Can you do a 2-stroke conversion on an LS1?
Yes, we could. It's only metal
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Old 05-03-2013, 09:38 PM   #97
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Old 05-03-2013, 09:50 PM   #98
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Sweet! I'd want a 427 chopped down to a V6 (5.2L) for weight savings. I wonder if it would be easier to use Darton sleeves.
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Old 05-03-2013, 09:56 PM   #99
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Old 05-03-2013, 10:07 PM   #100
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Somebody needs to send this thread to the engine dept @ GM....

This is the coolest engine build I have seen on ls1tech....
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Old 05-03-2013, 10:07 PM
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