V12 LS engine

[UltimaCH]

No it's not a typing error, not have I been eating hallucinary mushrooms. Check out this thread talking about a V12 LS engine. That certainly would be nice in an Ultima!
http://ls1tech.com/forums/conversions-hybrids/1643...

[F.C.]

UltimaCH said:

No it's not a typing error, not have I been eating hallucinary mushrooms. Check out this thread talking about a V12 LS engine. That certainly would be nice in an Ultima!
http://ls1tech.com/forums/conversions-hybrids/1643...

HHHNNNGGgg

[356Speedster]

I saw this recently too, incredible! I'm sure there's no real need for it, but the guys are doing it because they can and that gets the thumbs up from me! I'm glad there are folks in this world doing stuff like this

[Steve_D]

I'm not getting my head round how they propose to 'bolt' the two halves of the crankshaft together with 8 half inch bolts.

Steve

[F.C.]

Steve_D said:

I'm not getting my head round how they propose to 'bolt' the two halves of the crankshaft together with 8 half inch bolts.

Steve

That'll be the web fingered banjo players job to assemble
Not sure I'd trust it once it was bolted together.
Still they seem optimistic.

[chuntington101]

He needs to do a flat plain crank!

the reason for bolting two cranks together was to resduce cost. he has built two other engines that had billet cranks and these obviosuly costs more and take a while to make.

[UltimaCH]

Well it does seem that these "crazy" initiators, who I admire for their initiative, are not on their first V12 LS version, so it must work somehow!

[hedgefinder]

UltimaCH said:

Well it does seem that these "crazy" initiators, who I admire for their initiative, are not on their first V12 LS version, so it must work somehow!

ish... if some other posts are to be believed. Its impressive as it stands although I dont know how one of these "welded blocks/heads and bolted cranks" would handle any kind of performance use in an Ultima.
If they are intending to make more than a couple I would have thought casting a new v12 block from their prototype would be the best way forward.There are a number of U.S based performance engine builders that already cast their own small block and ls Blocks.

[UltimaCH]

Or billet block. In today's mechanical engineering that should be possible but at what cost

[chuntington101]

UltimaCH said:

Or billet block. In today's mechanical engineering that should be possible but at what cost

And thats the key! i think the guy(s) want to offer something that people can actually afford. This is why they are using stock components.

In an ideal world they would do a brand new casting for all the components but that would tale an age to develop and a lot of cash.

[Boosted LS1]

As I said elswhere, they haven't even got a matched pair of casings. One is an ls1 diecast and the other is a later sand cast block. The casings differ internally to.

[dandare]

It sounds a bit Heath Robinson to me.

The crank and cam-timing will be all over the place. I bet if you try to rev it, it'll turn itself back into two motors.

Will be interesting to hear how it sounds though.

[RUFAZZ]

I know for a fact that a billet crank can be made for around $3500, not a lot of money, I would be more concerned about the block, how much can it take with so much work done to them

[dom9]

By coincidence, I found that thread the other day too!

I am also of the opinion that without a purpose-built cam and crank, it's likely to turn itself back into two engines pretty quickly.

However, it's a great/ interesting project and an interesting way of getting a bespoke/ powerful V12

Would like to see someone cast their own components and use standard LSx valve, pistons, rods etc but I reckon that would get expensive!

[andygtt]

Brammo did this around 5-6 years ago (he had a red canam in the states)... the engine made 850bhp on the very first dyno test so had loads of potential lol

Not really spoken to him for years but he started manufacturing electric sports bikes so I think the project stopped, maybe this is taking it back up again?

[andygtt]

Steve_D said:

I'm not getting my head round how they propose to 'bolt' the two halves of the crankshaft together with 8 half inch bolts.

Steve

so they are bolting 2 LS's together? if thats the case then its not the brammo one as that used a custom single crank and block.

[UltimaCH]

Found some more info and photos of the V12LS engine build: http://www.lsxtv.com/news/the-ls12-the-inside-scoo...

[GTiRichTea]

Should be interesting to see this run.

This company makes a V12 but its a dedicated casting not two blocks joined together $65,000 it does look fabulous though
http://www.falconerengines.com/faq.php?faq=falcone...

[UltimaCH]

Looks real cool but the price.....

[ezakimak]

Steve_D said:

I'm not getting my head round how they propose to 'bolt' the two halves of the crankshaft together with 8 half inch bolts.

Steve

interesting idea joining a crank together by bolts. they do it in the mazda rotary to make the 4 rotors. even mazda do it.

interesting 4 rotor engine build hear
http://www.rx7club.com/build-threads-294/4-rotor-f...

looks a bit easier on a 4 rotor as you actually have a bit of material to spread the load with.