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Old 04-19-2010, 09:53 PM   #21
Richard454
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Quote:
Originally Posted by Bee Jay View Post
That's a good looking replica. I wonder why they didn't put a Ferrari V12 in it?
Bee Jay
The builder of that car realized a Ferrari V12 was going to be in the $20K range-for just the engine...NOT the whole project!!!

Quote:
V-12s are cool, but it's power & performance that counts!!!!!!!!!!
Like I said-When finished the Stingray V12 will have BETTER performance then the LS-5 that came in it... Weigh 200lbs less and have 350ishHP NET vs the originals 365HP GROSS rating...

Quote:
That engine scores high on the uniqueness scale but if you want performance equal to that go with a lightly modified LS engine.
I really looked at doing an LS- was really interested in this motor since my car was originally came w/ a 454- but $10 grand?? However- w/ a STOCK LS1 motor -this car w/ be really close...And I'll be able to do this swap for less-as it stands right now I've made money parting out the donor car and my son got new tires for his BMW...

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Old 04-19-2010, 10:05 PM   #22
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Good luck with the build, looks awesome.

You need to post up some exhaust clips when it's done.
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Old 04-19-2010, 10:12 PM   #23
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Cool! Should sound good!It will make em wonder!
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Old 04-20-2010, 12:11 AM   #24
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I've seen very few jag motors in chevy, ford etc.

But I've seen a slew of sbc in jag bodies ... without fail each one resulted from need to replace a failed jag motor at reasonable cost.

Jag motors etc are nice to look at & can make good power but nothing else makes grunt as economically (HP&TQ/$) as sbc ... but gm LSx may be there already.
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Old 04-20-2010, 12:34 AM   #25
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The General did build at least one V-12 Corvette. It was a C4 that used the Falconer V-12. A Falconer was a Small Block Chevy that had 4 more Cylinders. GM made the Frame and Body longer between the Firewall and Radiator.
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Old 04-20-2010, 08:58 AM   #26
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The Falconer would be nice -But at $65K -would sort of bust my budget....


The General also built an Impala w/ the BMW V12 engine. From my understanding it was to study the drive by wire technology-

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Old 04-20-2010, 09:12 AM   #27
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I think it's cool. Definitely post some more pics of the build if you can.
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Old 04-20-2010, 09:46 AM   #28
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For example the V12 BMW 850 had topspeed electronically limited to 250 km/h ( 155 mph) in Europe and it did 0-100 km/h in about 6,3 seconds. I'd say that engine has plenty of oomph even in stock state.

Since nobody has said it yet: I'd like to hear the sound of that somaday.
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Old 04-20-2010, 11:21 AM   #29
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Quote:
Originally Posted by TheFinn View Post
For example the V12 BMW 850 had topspeed electronically limited to 250 km/h ( 155 mph) in Europe and it did 0-100 km/h in about 6,3 seconds. I'd say that engine has plenty of oomph even in stock state.

Since nobody has said it yet: I'd like to hear the sound of that somaday.
Not to mention the 850 weighs in at 4200lbs- but it's aerodynamics smoke the vettes...

Richard
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Old 04-20-2010, 01:12 PM   #30
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Some hint of what it can sound like.

Lotus Esprit with BMW V12

Ultima GTR with BMW V12
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Old 04-21-2010, 01:38 AM   #31
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Quote:
Originally Posted by TheFinn View Post
Some hint of what it can sound like.

Lotus Esprit with BMW V12

Ultima GTR with BMW V12
I definitely like the sound of the Ultima GTR...
This is an awesome engine
One of my friends has got a green Lamborghini Murcielago. The sound is not too bad either... Inside and outside

Want to hear it :

http://www.xelopolis.com/lamborghini...de-640-ch.html

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Old 04-21-2010, 10:29 PM   #32
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Thanks guys-

Before I pulled the motor from the donor car- I sawzalled the muffler off and It really sounded good. Not to mention thanks to Platinum prices on the rise again I got $350 for the old cats!!!

Here's the latest- I'm working on the cooling system-

Dewitts radiator w/ twin spals- looks like I'll use the stock BMW Expansion tank- up nice and high so I'll bleed the air out of the system really well. I still have plenty of room for a mechanical fan- but I've got to run the air -which I might pull out below the radiator?

Click the image to open in full size.

Click the image to open in full size.

Richard
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Old 04-22-2010, 01:12 AM   #33
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Quote:
Originally Posted by Richard454 View Post
Thanks guys-

Before I pulled the motor from the donor car- I sawzalled the muffler off and It really sounded good. Not to mention thanks to Platinum prices on the rise again I got $350 for the old cats!!!

Here's the latest- I'm working on the cooling system-

Dewitts radiator w/ twin spals- looks like I'll use the stock BMW Expansion tank- up nice and high so I'll bleed the air out of the system really well. I still have plenty of room for a mechanical fan- but I've got to run the air -which I might pull out below the radiator?

Richard

It's really amazing that such an engine can fit a C3 chassis, and keep everything under a stock hood.
Very nice job, Richard !

Did you set the new engine at the same angle ( transmission ) as the stock GM V8 or is it slightly different ?
Looking at the pictures, it seems that the new V12 is almost horizontal.

Last edited by 73StreetRace; 04-22-2010 at 01:17 AM.
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Old 04-22-2010, 07:38 AM   #34
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go for it and post progress pics.
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Old 04-22-2010, 09:45 AM   #35
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Quote:
Originally Posted by 73StreetRace View Post
It's really amazing that such an engine can fit a C3 chassis, and keep everything under a stock hood.
Very nice job, Richard !

Did you set the new engine at the same angle ( transmission ) as the stock GM V8 or is it slightly different ?
Looking at the pictures, it seems that the new V12 is almost horizontal.
In the pics- the back end of the engine IS sitting higher than it will. I have a jack under it- the speedo cable is in the way of a temp sensor- easy fix.

As far as the placement of the motor- I used the crank centerline on the Chevy engine as my reference when designing the mounts for the BMW V12. So -yes it's be at the same angles as the stock. Also going w/ a dry sump- I have no clearance issues at all.
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Old 04-22-2010, 10:06 AM   #36
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Really interesting swap. Nice work.
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Old 04-22-2010, 10:33 AM   #37
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Jag V-12's are nice but down on power compared to a small block Chevy.
I have had the great opportunity to work on Historic race cars. Like the Silk Cut and Castrol Jaguar IMSA cars. Don't ever say Jag's are down on HP. I have worked on the over 7 liter Jag racing V-12's The 7.0 liters were @ 427 ci 7.2's were @ 440 ci fire breathers which both whipped up on 1000+ HP turbo Porsches. They even had a stroker model of something like 8 liters

They are just bad to the bone. Yes, your stock XJS v-12 was a very smooth, but junky boat motor.

http://en.wikipedia.org/wiki/1988_24_Hours_of_Le_Mans
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Old 04-22-2010, 10:55 PM   #38
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Looks good so far, can't wait to see it run
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Old 04-23-2010, 08:18 PM   #39
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Thanks guys-

I''m really happy w/ the way it fits. Ironically, It'll be a heck of a lot easier changing plugs on this motor than the old LS-5!!!

Here's some mock up intake covers- What do you think?

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Old 04-23-2010, 11:01 PM   #40
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Some of the shallow finned covers similar to what the ZZ502 uses would match the center intake cover nicely.
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Old 04-23-2010, 11:01 PM
 
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