DIY Si
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| posted on 26/4/06 at 06:14 PM |
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V6 weights/powers
Evening all, I'm looking at fitting a v6 in a seven. However, I am unsure which to pick. Which ones are heavy? which ones are powerful in
standard form? More inportantly which are lowcost? Just as a starter for 10, I'm looking at the duratec (ford or jag), vauxhall (can't
remember what it's called) and the kv6. Have I missed any obvious choices?
Cheers for the help. Oh and I'm aware of the thread running about the st24 etc engines.
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MikeR
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| posted on 26/4/06 at 06:23 PM |
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KV6 would be a brave and interesting choice.
Would it mate to any gearboxes for rear wheel drive?
Cost of spares?
Power per kg?
Love to see it as i thought the engine was a great idea. Shame rover didn't survive long enough to make a few hundred thousand of them.
ST24 engine seems easiest (even though you've still got the bell housing problem)
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owelly
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| posted on 26/4/06 at 06:33 PM |
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Have a search for Alfa V6 in here!......
http://www.ppcmag.co.uk
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DIY Si
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| posted on 26/4/06 at 06:34 PM |
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I'd forgotten about them. Any other's I've over looked? And ideas/opinions which is best? And why?
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hector
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| posted on 26/4/06 at 06:44 PM |
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hi
I am currently fitting a cologne v6 as used in the sierra xr4x4, it is a heavy engine but once on the road i am putting a turbo kit on it and with gas
flowed heads and few other mods it will kick out approx 250hp and about the same ft/lbs of torque, which should be quite entertaining!!
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DIY Si
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| posted on 26/4/06 at 06:50 PM |
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I curently have one sat in the shed, but it need a bit of work to run properly. And from lifting it out the car, it weighs as much as my house!
I'm after something a little lighter and powerful without any work. Apart formt the usual exhaust/inlet changes. I think a turbo would be too
much hassle to plumb in under a seven's bonnet. Especially with a v6/v8. Or more hassle than I want to put in anyway.
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davida
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| posted on 26/4/06 at 07:13 PM |
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The V6 in my Freelander certainly makes a nice noise (178BHP) but I suspect it's a little bulky to fit in a seven.
I'd love to be proved wrong as it loves to rev to nearly 8k even when dragging a heavy 4x4
:-)
Dave
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Liam
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| posted on 26/4/06 at 07:24 PM |
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The vx engine is very nice indeed (have one in my road car) but with its iron block it will be quite a heavyweight. Cheap though and 208 standard
ponies for the 3 litre with more easily released if you improve the standard restrictive exhaust manifolds. Easy RWD gearbox.
Alfa's are lovely and 240 bhp from the 24V cloverleaf. Have lifted one with my load cell and whilst i can't remember it's exact
weight we were dissapointed how heavy it was considering it's ally. Well over 150kgs I think  . RWD available but like gold dust, so adaptor
plate or bellhousing mod needed.
I originally considered the KV6 so joined a rover 800 group to ask about it. They all said avoid like the plague (at least early 800 ones - late 75
ones are fairly well sorted) and use the honda 2.7 instead - so I am!! 180bhp standard, bulletproof and literally given away. Mine is 126kg
including the steel adaptor plate and starter motor! Just missing my fabbed intake and a little alternator. Unfortunatley the standard ecu is under
the 800's driver's seat and the wiring is merged with the whole car's loom!! Wiring would be a nightmare which is one reason
i'm ditching the standard intake and going megasquirt. For any other engine i've seen, the ecu comes out on a separate engine loom.
These engines are used in the Phantom GTR kit so they would probably be able to supply a loom.
Other honda V6s might be well worth a look - up to 3.5 in the Legend and v-tec form in the accord. All the V6s spin the right way but suffer from no
bolt-on RWD box. I've made an adaptor plate for mine.
Toyota have a very nice V6 in the Camry. One interesting feature is a bolt-on supercharger available!
Others that come to mind are the Peugeot/Renault/Volvo and the Mazda/Ford Probe.
Liam
[Edited on 26/4/06 by Liam]
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jollygreengiant
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| posted on 26/4/06 at 07:26 PM |
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Then theres the Omega V6 in 2.5, 2.6, 3.0 and 3.2 sizes, that already has a matching rear wheel drive gear box, differential, drive shafts and brakes.
Oh and they are 24valve twin cam per bank.
[Edited on 26/4/06 by jollygreengiant]
Beware of the Goldfish in the tulip mines. The ONLY defence against them is smoking peanut butter sandwiches.
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britishtrident
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| posted on 26/4/06 at 07:42 PM |
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V6 engines = sows ear
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DIY Si
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| posted on 26/4/06 at 07:55 PM |
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?
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britishtrident
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| posted on 26/4/06 at 07:58 PM |
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quote:
Originally posted by DIY Si
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A V6 will always run roughly, out of dynamic balance -- instrinsic to the configuration nothing can be done about except disguise it with counter
balancing shafts.
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Johnmor
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| posted on 26/4/06 at 08:13 PM |
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V6
Alfa V6 voted best engine four years running!!!!!
Dynamics dont know it all, try driving one first.
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Liam
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| posted on 26/4/06 at 08:37 PM |
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Hmmmm my meggy seems smooth enough to me . Doesn't mind idling at 500 or revving to 6700. No balancer shafts either. My honda engine is a
90 degree V6 which should theoretically be even worse!! Seems the 'problem' can be engineered out quite easily, and it's obviously
worth it or nobody would bother with them.
Liam
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locost_bryan
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| posted on 27/4/06 at 01:43 AM |
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Mitsubishi FTO MIVEC (6A12) - 200bhp from 2 litres  - bolts up to the old Starion rwd box (so I'm told!)
... or Mitsubishi Galant VR4 twin turbo (6A13) - 276 bhp from 2.5 litres 
Mazda KL-ZE 2.5 litre 200bhp - used by Fraser Cars with adaptor for Ford gearbox http://www.users.bigpond.com/vidore/A%20Fraser%20Gallery.htm
Bryan Miller
Auckland NZ
Bruce McLaren - "Where's my F1 car?"
John Cooper - "In that rack of tubes, son"
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DarrenW
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| posted on 27/4/06 at 09:57 AM |
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Ive got mixed feelings of the Ford V6 after owning a 2.5 Mondeo. I was amazed to learn it only had around 165bhp in std form. I always thought it
should be far more than that. For that reason i cant see the benefit in them over say a good zetec or XE. At least with these 2 there are loads of
tuning potential and the chance of some cheap bits.
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NS Dev
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| posted on 27/4/06 at 10:09 AM |
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quote:
Originally posted by Johnmor
Alfa V6 voted best engine four years running!!!!!
Dynamics dont know it all, try driving one first.
Yep, agree, for a slightly less nimble, but really fast midrange car with huge character and real grin factor a V6 is the thing in my opinion.
The howl is preferable to a v8 to my ears (though I'll understand those who will disagree!)
For Johnmor on his scottish open roads I can think of few things better than that alfa v6 in the 7!
To some extent you have to look beyond the peak paper figures (for any engine this is) and look at the full power and torque curves. The peak figures
for the v6's may be disappointing but the performance will be anything but. They have substance to their torque curve that strikes a very happy
balance.
V8's tend to have too much low down for a lightweight car, 4 cyls all top end, v6's a lovely balance. I know this is a generalisation but
it does apply to most off the shelf v6's.
There's a chap on the westfield forum with a beautiful GM v6 24v setup in a westy, well worth a look.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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jollygreengiant
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| posted on 27/4/06 at 07:13 PM |
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Omega V6 = Almost bomb proof bottom end.
My mrs ran our for nearly 1/2 mile with no oil filter after some numpty one night decided to remove it. Fitted new filter & oil, still running
fine over a year later.
Beware of the Goldfish in the tulip mines. The ONLY defence against them is smoking peanut butter sandwiches.
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tks
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| posted on 28/4/06 at 07:13 AM |
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nahh
you can tell me what you want,
but a engine without oil is like a superdog without blood in it.
Anyway the 6 Cilinders are the best balanced engines Due to fireing order and spacing etc..
Fireing order there was a trick... ahem 15 to young 34 to old 26 straight on..
153426 dunno if its right...LOL
TKs
The above comments are always meant to be from the above persons perspective.
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cossey
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| posted on 28/4/06 at 08:06 AM |
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straight 6s a harmonically balanced v6s arent but most modern engines are very good so you wont notice it.
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