Omega Owners Forum

Chat Area => Omega Gallery => Topic started by: mv6copcar on 09 October 2008, 13:38:14

Title: V6 - V8 update
Post by: mv6copcar on 09 October 2008, 13:38:14
a few pics from today - started to remove the old MV6 lump, (with a little help from mutantcav!) he's coming to buy and remove the rest of the stuff.
Will update soon chaps   :y

(http://i306.photobucket.com/albums/nn258/mv6copcar/104_0542.jpg)

LOOK AT THE SPACE!!!! MAY PUT A V12 IN...........

(http://i306.photobucket.com/albums/nn258/mv6copcar/104_0544.jpg)

(http://i306.photobucket.com/albums/nn258/mv6copcar/104_0545.jpg)
Title: Re: V6 - V8 update
Post by: JonArgraig on 09 October 2008, 13:56:39
Can't wait to see this on a track...
Title: Re: V6 - V8 update
Post by: mv6copcar on 09 October 2008, 14:05:04
Quote
Can't wait to see this on a track...

You and me both mate!!

below is the old post back a few months ago when it all started...

http://www.omegaowners.com/forum/YaBB.pl?num=1213782897

 :y
Title: Re: V6 - V8 update
Post by: ngrainqey on 03 December 2008, 20:20:05
imo one thing stopping you ram in a very big lump is how the radiator is so far back! it's in the middle of nowhere really!
Title: Re: V6 - V8 update
Post by: CateraMV6 on 04 December 2008, 15:07:40
Instead of a V8 have you considered a I6... the 2JZ-GTE From toyota works wonders... here in the states those motors put out between 600-1200hp... and they bolt on, the mounts are in the same locations all you need is extender/adaptor plates to reach up to the engine mount... and the gearbox is bullet proof... all you need is a better rear diff and some stand alone AEM ECU stuff... and farily easy to make the car into a  monster...

V8=weight ... not so much power...

I6 Twin Turbo=light and powerfull..
Title: Re: V6 - V8 update
Post by: tunnie on 05 December 2008, 14:03:17
I6/S6 will make it too nose heavy, plus a single wiper conversion is needed to shoe horn it in
Title: Re: V6 - V8 update
Post by: Marks DTM Calib on 05 December 2008, 14:35:52
Quote
I6/S6 will make it too nose heavy, plus a single wiper conversion is needed to shoe horn it in


Ow yes, as fitted on the S6/I6 diesel engine, wait a minute....that has twin wipers  :y

And it has a long block (long stroke)

Your right though, does nothing for the weight distribution and I see no reason why a S/I6 would be lighter than a V8....particularly an LS1/2
Title: Re: V6 - V8 update
Post by: ngrainqey on 07 December 2008, 11:31:26
Quote
Quote
I6/S6 will make it too nose heavy, plus a single wiper conversion is needed to shoe horn it in


Ow yes, as fitted on the S6/I6 diesel engine, wait a minute....that has twin wipers  :y

And it has a long block (long stroke)

Your right though, does nothing for the weight distribution and I see no reason why a S/I6 would be lighter than a V8....particularly an LS1/2

depending on the spec of the engine you can get alloys heads and probably block (i havnt looked into that) but you can defo get alloy heads on the v8's which makes the engine about the same weight as the V6 version of the engine

also mark... there ls1 and 2 are two different engines and the ls1 is the earlier version of the ls7 and ls2 earlier version of the ls6 (just for future reference to everybody really)
Title: Re: V6 - V8 update
Post by: Martin_1962 on 08 December 2008, 12:14:51
Quote
Instead of a V8 have you considered a I6... the 2JZ-GTE From toyota works wonders... here in the states those motors put out between 600-1200hp... and they bolt on, the mounts are in the same locations all you need is extender/adaptor plates to reach up to the engine mount... and the gearbox is bullet proof... all you need is a better rear diff and some stand alone AEM ECU stuff... and farily easy to make the car into a  monster...

V8=weight ... not so much power...

I6 Twin Turbo=light and powerfull..

Been done with a Lotus Carlton engine
Title: Re: V6 - V8 update
Post by: Marks DTM Calib on 08 December 2008, 13:10:06
Quote
Quote
Quote
I6/S6 will make it too nose heavy, plus a single wiper conversion is needed to shoe horn it in


Ow yes, as fitted on the S6/I6 diesel engine, wait a minute....that has twin wipers  :y

And it has a long block (long stroke)

Your right though, does nothing for the weight distribution and I see no reason why a S/I6 would be lighter than a V8....particularly an LS1/2

depending on the spec of the engine you can get alloys heads and probably block (i havnt looked into that) but you can defo get alloy heads on the v8's which makes the engine about the same weight as the V6 version of the engine

also mark... there ls1 and 2 are two different engines and the ls1 is the earlier version of the ls7 and ls2 earlier version of the ls6 (just for future reference to everybody really)

Yes I know but, there all GenIV small blocks so alloy heads etc.. :y
Title: Re: V6 - V8 update
Post by: ngrainqey on 15 December 2008, 22:06:38
Quote
Quote
Quote
Quote
I6/S6 will make it too nose heavy, plus a single wiper conversion is needed to shoe horn it in


Ow yes, as fitted on the S6/I6 diesel engine, wait a minute....that has twin wipers  :y

And it has a long block (long stroke)

Your right though, does nothing for the weight distribution and I see no reason why a S/I6 would be lighter than a V8....particularly an LS1/2

depending on the spec of the engine you can get alloys heads and probably block (i havnt looked into that) but you can defo get alloy heads on the v8's which makes the engine about the same weight as the V6 version of the engine

also mark... there ls1 and 2 are two different engines and the ls1 is the earlier version of the ls7 and ls2 earlier version of the ls6 (just for future reference to everybody really)

Yes I know but, there all GenIV small blocks so alloy heads etc.. :y

lol not necesarily(cba to spell that right)
depends if you get a crate engine or not as the crates are direct replacement for oe spec lumps with options for tuning as it's being built or just used as a good base...
sorry i was getting technical there, what you say afaik is true.
the later engines all had alloys heads on the v8's
Title: Re: V6 - V8 update
Post by: CateraMV6 on 16 December 2008, 12:15:48
Well the only reason I mentioned an I6 was because swaps have been done with the Toyota SUPRA 2JZ-GTE engine... which is a 3.0L 24V Sequential Turbo motor... and its a popular tunner piece, the folks around here are running between 500-1000hp on those suckers... they proove to be extreemly reliable and easy and cheap to tune...

A big 'ol V8 would be a tight fit, no chance for turboes... and you will end up with maybe 300-400hp at the max... now if the swap is going to cost similar money then why not go all out... and build something crazy...

I am considering a Lexus 2JZ engine with all the internals and a single turbo... with the manual gear box swap... perhaps a rear diff and axle upgrade and that should make for a stealthy car.... that can run 11s in the quarter mile...
Title: Re: V6 - V8 update
Post by: CateraMV6 on 16 December 2008, 13:01:09
(http://i109.photobucket.com/albums/n50/CateraMV6/MOTOR%20SWAP/Omega17.jpg)
(http://i109.photobucket.com/albums/n50/CateraMV6/MOTOR%20SWAP/Omega18.jpg)
(http://i109.photobucket.com/albums/n50/CateraMV6/MOTOR%20SWAP/Omega19.jpg)
(http://i109.photobucket.com/albums/n50/CateraMV6/MOTOR%20SWAP/Omega2122.jpg)
(http://i109.photobucket.com/albums/n50/CateraMV6/MOTOR%20SWAP/Omega2322.jpg)
(http://i109.photobucket.com/albums/n50/CateraMV6/MOTOR%20SWAP/Omega22.jpg)
(http://i109.photobucket.com/albums/n50/CateraMV6/MOTOR%20SWAP/Omega56.jpg)
(http://i109.photobucket.com/albums/n50/CateraMV6/MOTOR%20SWAP/Omega72.jpg)

(http://i109.photobucket.com/albums/n50/CateraMV6/MOTOR%20SWAP/Omega7.jpg)
Title: Re: V6 - V8 update
Post by: Martin_1962 on 16 December 2008, 15:05:59
http://www.rats.no/omega_tg.html
Title: Re: V6 - V8 update
Post by: ngrainqey on 16 December 2008, 20:07:23
Quote
Well the only reason I mentioned an I6 was because swaps have been done with the Toyota SUPRA 2JZ-GTE engine... which is a 3.0L 24V Sequential Turbo motor... and its a popular tunner piece, the folks around here are running between 500-1000hp on those suckers... they proove to be extreemly reliable and easy and cheap to tune...

A big 'ol V8 would be a tight fit, no chance for turboes... and you will end up with maybe 300-400hp at the max... now if the swap is going to cost similar money then why not go all out... and build something crazy...

I am considering a Lexus 2JZ engine with all the internals and a single turbo... with the manual gear box swap... perhaps a rear diff and axle upgrade and that should make for a stealthy car.... that can run 11s in the quarter mile...

your a few hundred bhp out there :P
V8's are good for 600bhp like a piece of pi$$!

and also there's no point turboing a V8 because quite a few are 12V so the concept of a turbo is absolute pants and your alot better going s/charged
Title: Re: V6 - V8 update
Post by: Miggy24 on 21 December 2008, 18:15:53
thats going to be one sweet ass motor  keep up the good work :y :y
Title: Re: V6 - V8 update
Post by: GmasterT on 31 December 2008, 00:34:56
Apart from updating to say Mr. MV6copcar is a legend and lifesaver  ;D, thought I would at my 2p on the engines.

All the LS's (IE the fuel injected chevy V8's) are alloy block and probably as heavy if not lighter than the V6 already in there.

You can crate a new one over for reasonable cash, but your gearbox will be pricey, but there is more stuff out there for a chevy V8 than any other engine. 8 forged pistons cost the same a 4 for an evo or 200sx

A friend has one in his 200sx S14, runs 400bhp with the same torque with a stand alone ecu (cant remember the brand, omex probably) K&N and modded exhaust still with the cats, fair savage and makes the right noises, with massive room for tuning!

The 1JZ/2JZ is heavier, but there is not a lot in it, uses the R154 manual box which is the best money for strength box you could probably ever get (and actually you can get a chevy to toyota conversion bellhousing from the states if you really wanted) and is good on standard internals for 600+bhp. The engine and box would be cheaper, and getting it to similar+ power than the V8 would be too, but would be an (despite possibley the best jap lump ever) an older engine. You would also need to make intercooler room and the fact it is a turbo'd lump will lend more to heat and teething problems to start with.

But at the end of it its 6 of one and half a dozen of the other. A 400bhp LS would be a quick as a 440ish bhp 1JZ if only because of the instant grunt, but I have driven/drifted a couple of JZ'd 200's with 450bhp and when on boost its just savage!

V8's in drifty land are taking over, just useable, affordable, understressed grunt!  Plus the LS is all part of the GM family, its got to be the onbly way... although...  ;D :y
Title: Re: V6 - V8 update
Post by: Marks DTM Calib on 31 December 2008, 17:07:24
Dont forget we have LS1's and 2's with nice Tremec 6 speed boxes now entering the Uk scrap yards on written off motors!
Title: Re: V6 - V8 update
Post by: ngrainqey on 01 January 2009, 13:01:14
why not just the old corvette manual box off the C4 corvette so should be a straight bolt on gearbox with the ls1 or 2
Title: Re: V6 - V8 update
Post by: Marks DTM Calib on 01 January 2009, 19:48:37
Quote
why not just the old corvette manual box off the C4 corvette so should be a straight bolt on gearbox with the ls1 or 2

6 speed Tremec will be easier to get in the Uk.....as fitted to the Monaro!
Title: Re: V6 - V8 update
Post by: ngrainqey on 01 January 2009, 20:42:41
not from what iv seen, you can get second hand corvette boxes off the internet from corvette spare places (www.corvetteuk.com) i think and some others
Title: Re: V6 - V8 update
Post by: mv6copcar on 02 January 2009, 11:18:18
Quote
Quote
Well the only reason I mentioned an I6 was because swaps have been done with the Toyota SUPRA 2JZ-GTE engine... which is a 3.0L 24V Sequential Turbo motor... and its a popular tunner piece, the folks around here are running between 500-1000hp on those suckers... they proove to be extreemly reliable and easy and cheap to tune...

A big 'ol V8 would be a tight fit, no chance for turboes... and you will end up with maybe 300-400hp at the max... now if the swap is going to cost similar money then why not go all out... and build something crazy...

I am considering a Lexus 2JZ engine with all the internals and a single turbo... with the manual gear box swap... perhaps a rear diff and axle upgrade and that should make for a stealthy car.... that can run 11s in the quarter mile...

your a few hundred bhp out there :P
V8's are good for 600bhp like a piece of pi$$!

and also there's no point turboing a V8 because quite a few are 12V so the concept of a turbo is absolute pants and your alot better going s/charged


Well LS7 runs 505bhp standard, and the LSX engine, which is a modified LS7 with 511 cubic inches (4.25" Bore x 4.5" Stroke) and is capable of withstanding 2500 bhp

i wouldn't be able to afford the parts needed for 2500 bhp but it's possibile with this engine, so 300-400 bhp max - no.........

As soon as we have all sat down and made our minds up as to what engine parts and boxes we will be using i'll post up here!
Title: Re: V6 - V8 update
Post by: fatjon on 06 January 2009, 13:02:07
TVR AJP8 fits nicely, even room for a couple of turbos, intercollers and a T5 box.

http://195.224.74.74/

It would have been easier without the big silly Omega steering box and you will need to the body kit to hide the rads, oil coolers and secondary water coolers if you use air/water intercoolers like I have but it's do-able and since the engines are over 400BHP before the turbos you can probably make 750-800BHP. No idea if the diff will take it as we are only half finished but time will tell.

Go for it with a V8 anyway, these big cars need some grunt, they can handle a lot more than vauxhall ever gave them.

Jon The Fat
Title: Re: V6 - V8 update
Post by: Martin_1962 on 06 January 2009, 19:58:49
Intersting!
Title: Re: V6 - V8 update
Post by: CateraMV6 on 07 January 2009, 14:21:05
Well I was saying stock motor can be tweaked to around 300-400hp range, now if you go crazy with big cams and headers and crazy intake manifolds I assume you can push that number up over 500 but its difficult to get even that on a limited budget...

I was thinking the I6 TURBO will be cheaper and more effective at modding, I even hear people swapping the 3.8L I beleive turboed out of a older gen Omega or something, maybe that will even be a nice mod for this car... IDK... but you will be quite busy in keeping up with rear end and axles, as the increased stress levels will cause things to fail early...

Wish you luck thou!...

Do a bit of research on those remote turbo mounts for the V8 that you have planned, I think you will like the kind of beast that can come out of that type of a mod...
Low End Torque and then boost for up above.... that will make for one simply bad ass ride... and the "wooosshhhh" between gear shifts... with a V8 Rumble in the background... CRAZY huh? ;)
Title: Re: V6 - V8 update
Post by: GinoGinelli on 09 January 2009, 10:49:53
Take it you've seen this?

http://www.evo.co.uk/carreviews/evocarreviews/210264/vauxhall_omega.html

www.v-8.org.uk might come in handy, someone on theres even V8'd an mx-5!  ;D

Good luck!

Title: Re: V6 - V8 update
Post by: Kevin Wood on 09 January 2009, 20:53:23
Quote
Take it you've seen this?

http://www.evo.co.uk/carreviews/evocarreviews/210264/vauxhall_omega.html

www.v-8.org.uk might come in handy, someone on theres even V8'd an mx-5!  ;D

Good luck!


At Le Mans a couple of years ago the star of Mad Friday was a ropey old Sierra 1.6L that someone had fitted a V8 and a line lock to. Won the burnout competition by about 100 yards!

Kevin