I'll just add that the Jaguar V12s, while heavier than a V8, are still pretty cool with their ribbed aluminum blocks, narrow v-angle and smooth, smooth running. The stock 5.3 cam runs out of steam above 5500 but the engines will hold together up to almost 8000 rpm, so some stiffer springs and better cams would do wonders. I picked up 30 hp at the wheels on my engine just by straightening out the intake manifolds.
Ian F
MegaDork
1/1/12 5:22 p.m.
carguy123 wrote:
Yes, and punctuation and capital letters. It's amazing how much more communication happens that way.
In his defense, he did use paragraphs, but only returned once. You need to do it twice when posting on this forum or the software will ignore it and create a one big paragraph.
Good info, thanks for posting.
Terrific! I am still looking for a decent early or late XJS. Non HE or 6.0l would be a great starting place.
Stop it! Stop it! I am NOT listening! La, la, la, la, la, la, la...
(Jeez this sounds like so much fun to build......)
Stop IT!!!!!!!!!!
(12 cylinders of wonderfulness.......)
Argghh!!!
Things like this make me wish there was a GRM Wiki to consolidate all the weird knowledge that exists on this forum.
Since we now have this wonderful thread, what's the cheapest way to bolt a 5 or 6 speed manual to one?
Somebody buy this one... Before I get in trouble.. I Hate you guys...
http://kansascity.craigslist.org/cto/2776314129.html
MG Bryan wrote:
Since we now have this wonderful thread, what's the cheapest way to bolt a 5 or 6 speed manual to one?
I have the bellhousing, Fidanza aluminum flywheel and pressure plate to bolt a T5 to one-total cost was $1200 but I'll sell all of it for $750. You will have to put a spacer between the tranny and bellhousing to avoid the input shaft problem I had, though.
I think the big question everyone's wondering is what's the smallest, nimblest chassis these can be easily swapped into?
unevolved,
e30 would be my first guess, but there's already a cheap and upgradeable V12 to fit to those (the 750i engine).
How about an old Celica Supra?
Datsun! You could build a Zerrari
chaparral wrote:
but there's already a cheap and upgradeable V12 to fit to those (the 750i engine).
I didn't realize how cheap those engines were...
Next you're going to tell me there's a cheap way to bolt up a 5MT to one, right?
dunno what an uncorked Jag V12 sounds like at RPM but it seems a shame to put turbos on it and muffle that exhaust note...
I think a whistling uncorked turbocharged V12 would sound insane. Please do. PLEASE DO!!
So...The grm formula: POWER
1981-1992 V12 Jaaaag
Junkyard T2's, two of them
Junkyard Intercoolers, two of them
Small 45 Amp Alternator
Vortex fuel tricky thingy
Remote Tank power steering pump
What are the gotcha's?
Ie the self immolation fuel lines?
Known weakpoints?
Does this era have some form of GM tranny that can be easily handled or is it a ZF nightmare?
Just a quick summary with some follow up questions to perfect my craigslist search. I have actually worked a v-12 jag of some late model vintage. The fuel lines self immolated the car, and my buddy decided he would rewire it and get it running. He did, although I was brought in to change the starter. The jag manual called for pulling 83% of the car apart, I created an "access port". For all I know the car still runs today.
HappyAndy wrote:
Don't you mean Zaguar?
I was thinking of a 250 GTO kit, but Zaguar has a nice ring to it!!
okay guys so i just read this, and i am building a jaguar v12, its already in the car so no head machining can be done atm. what are your best suggestions for performance? i wanna hit 400 hp but i also want some horsepower in the normal driving range because honestly i wanna beat anything in my highschool parking lot. cus yeah im still 17 haha
Anything will take a 125 shot of nitrous. LOL
I think my post above probably summed it up. Do you happen to have the 1981-1992 model and access to a junk yard?
The problem with page 2 has been fixed; there was some wonky formatting in one of the last 4 posts that was quoted, so we lost exactly 4 messages in the process.
Now, on with the V-12s....
In reply to mguar:
Do you have any pictures of this junkyard twin turbo system that you described, and what pressure was it running?
I am now confused, which happens often.
Do we have a formula of parts for the best bang for the buck? Is there a model year that is the "best" or do we need to grab parts from different years and meld them together?
Any help would be deeply appreciated. My convertible v-12 fantasies need a road map.