TURBO I6 or V8? - Page 2

Steffo · 12-08-2005, 10:27 AM

What is it with this idea that you can get more power out of the Turbo 6 then the V8? When push comes to shove, the V8 will always come out on top. There has simply, in Australia, been more focus on the XR6 Turbo then anything else, because it is factory forced induction, its becoming a new cult car. If you really want to beat it with the 5.4, you can make power with that thing that will eclipse the Turbo 6's wildest dreams.

A route something like.. SHM 5.4 Race Block, 3.7" bore... SHM 4.500" stroker kit + rotating assembly (incl. rods, pistons, cams etc etc). SHM Stg3 4 valve DOHC mod motor race heads, and then a Garrett GT42 turbo or two. 387 cubes of twin turbocharged muscle.. that will.. well, devastate.. um.. lots of cars.

I can't wait until someone does it, or until CAPA runs its 1000hp Supercharged 5.4 Ute, if they ever do.

Hence why I voted V8, as this thread was specifically about engine only.

merlin · 12-08-2005, 10:32 AM

Quote:

Originally Posted by Steffo

What is it with this idea that you can get more power out of the Turbo 6 then the V8? .

I think what people are saying is you can get more power out of the 6 with much less dollars than the 8 - Check out the APS kits available - Sure you can ultimatly make the 8 go faster but at what price?

**Bluehoon** · 12-08-2005, 10:34 AM

Quote:

Originally Posted by Steffo

What is it with this idea that you can get more power out of the Turbo 6 then the V8? When push comes to shove, the V8 will always come out on top. There has simply, in Australia, been more focus on the XR6 Turbo then anything else, because it is factory forced induction, its becoming a new cult car. If you really want to beat it with the 5.4, you can make power with that thing that will eclipse the Turbo 6's wildest dreams.

A route something like.. SHM 5.4 Race Block, 3.7" bore... SHM 4.500" stroker kit + rotating assembly (incl. rods, pistons, cams etc etc). SHM Stg3 4 valve DOHC mod motor race heads, and then a Garrett GT42 turbo or two. 387 cubes of twin turbocharged muscle.. that will.. well, devastate.. um.. lots of cars.

I can't wait until someone does it, or until CAPA runs its 1000hp Supercharged 5.4 Ute, if they ever do.

Hence why I voted V8, as this thread was specifically about engine only.

But how much do you have to spend to achieve such power.

And there is stilll the front end weight factor.

Thats a lot of cash for a V8..

T offers best bang for buck...

johnydep · 12-08-2005, 10:35 AM

I can't decide. Both engines are magnificent.

Love the low down torque of a V8 & the sound it emits.
Love the power surge that a turbo produces & that turbo winding up.

I'll have to think hard about this one before I vote, oh my head :ticking:

Steffo · 12-08-2005, 10:36 AM

Quote:

Originally Posted by filthy_monkey

And there is stilll the front end weight factor.

Not with that block and rotating assembly there isn't.. cuts down a great deal on weight. Would probably turn out as light as, if not lighter then the turbo 6 with that setup.

brenx · 12-08-2005, 10:38 AM

Quote:

Originally Posted by ebxr8240

De compress the 5.4 alittle fit GT45 and you have best of both worlds!!!

A turbo V8 that would be nice..

..

Not exactly EPA legal though is it ;)

merlin · 12-08-2005, 10:39 AM

Quote:

Originally Posted by Steffo

Not with that block and rotating assembly there isn't.. cuts down a great deal on weight. Would probably turn out as light as, if not lighter then the turbo 6 with that setup.

you forgot to mention cost

:

dansedgli · 12-08-2005, 10:41 AM

Quote:

Originally Posted by brenx

Not exactly EPA legal though is it ;)

Biggest issue right there!

An 11 second kit from APS that is EPA legal is much more tempting than a 11 second turbo V8 monster that the EPA wont allow on the road and you have to watch for cops every 10 minutes.

Although the APS twin turbo 5.4 kit will meet emissions and is the winnah!

**Bluehoon** · 12-08-2005, 10:42 AM

Quote:

Originally Posted by merlin

you forgot to mention cost

:

And EPA legalatities

At least with T mods, you can stil be completely EPA legal, but then is there such a thing as a Falcon or Commodore from factory that meets those laws, no...

**Bluehoon** · 12-08-2005, 10:44 AM

Quote:

Originally Posted by dansedgli

Although the APS twin turbo 5.4 kit will meet emissions and is the winnah!

If it ever eventuates, very big $$$ for a very small market.

:

At least with the LS1/2 there is the entire USA to market into...

Steffo · 12-08-2005, 10:47 AM

Quote:

Originally Posted by dansedgli

Biggest issue right there!

An 11 second kit from APS that is EPA legal is much more tempting than a 11 second turbo V8 monster that the EPA wont allow on the road and you have to watch for cops every 10 minutes.

Although the APS twin turbo 5.4 kit will meet emissions and is the winnah!

Heh... that setup I posted would be alot faster then that.. high 8s/low 9s perhaps :hihi:

And yeah, the APS kit is cool.

Interesting thing.. CAPA's 1000hp BA XR8 Ute is street registered and legal.. and they got 14.2litre/100km out of it on a long trip. I like, I like...

dansedgli · 12-08-2005, 10:50 AM

Quote:

Originally Posted by filthy_monkey

If it ever eventuates, very big $$$ for a very small market.

:

At least with the LS1/2 there is the entire USA to market into...

Last I heard it was going to be around $14K for a twin turbo kit. That is not expensive if you have ever properly converted a car to turbocharged form before. Especially for what the kit delivers.

**ebxr8240** · 12-08-2005, 10:52 AM

Quote:

Originally Posted by brenx

Not exactly EPA legal though is it ;)

And most modded XR6t's or any motor for that matter are not either..It will pass emisions quite easy...Well easier than a supercharged motor..No point in letting that energy get wasted down exhaust pipe!!!

mcflux · 12-08-2005, 11:12 AM

Quote:

Originally Posted by filthy_monkey

At least with the LS1/2 there is the entire USA to market into...

*cough* F Trucks *cough* Mustangs *cough* (ok so their 5.4s and 4.6s are a tad different to our 5.4s)

Deadman · 12-08-2005, 11:15 AM

Quote:

Originally Posted by merlin

Hasn't one guy on this forum run a 13.2 in his stock F6...

Yes

I don't want to get into the whole debate, but I thought I'd voice why I prefer a turbo I6. And don't get me wrong, I love a V8!

I think that a turbo I6 is a perfect medium. Anything larger than a V8 is rediculous, and I wouldn't want anything smaller than a I6. And simply, IMO putting a turbo on a V8 is a bit of overkill. I'd definately look at a Supercharged V8, that might make me struggle to pick my Turbo I6...

But a Turbo I6 offers such great torque delivery, the best bang for your buck mods, and less weight (something we all concern ourselves with now on the BA). Not to mention, that I think a lot of us younger guys (and I don't want to sterotype here) are into Turbo's a lot more than older guys who grew up with the V8's...

If you were around when the GTHO was in it's prime, and the Aussie V8 was a thing of beauty (and fuel was cheap!) then I'm sure you're answer to this question will never change! I on the other hand, mainly started to get into cars around the EL stage, where the XR8 offered s**t all over the XR6. By that, I mean the XR8 had no where near the advantage it should had in power, and loss a lot of advantage in weight - it might have been faster still (not by much), but didn't seem like the better car, because the XR6 was offering lots, and the XR8 didn't seem to meet it's potential. And really, to this day, with the early AU's, and even in the BA (with the XR6T and XR8 being so close performance wise) I have a different perspective (and I'm not saying it's the right one - just a different one).

I see the I6 as an alternative to the V8 - not something that is a cut below the V8 - esspecially because of the potential in Ford's awesome 4.0L I6. This of course- could be a different view to many V8 lovers. But in my time, I guess the aussie V8 that I've seen (since the EL) really hasn't done much to win me over. I even remember the Ralliart Magna showing up the XR8 down the quarter - that was embarassing for the V8

ing_sm Anyhow, I don't want to step on any toes - that wasn't my goal. Just wanted to give a different perspective. I guess I like the idea of hearing the turbo, feeling the boost come on, and really, i like the idea of driving a I6... Whatever gets ya going right

Anyhow, just my 2c, hope that all made sence

:

Steffo · 12-08-2005, 11:17 AM

Why is putting a turbo on a V8 'overkill' ? I don't get it. Doesn't mean its got to be a psycho killer ultra power destructo engine.

Deadman · 12-08-2005, 11:24 AM

Quote:

Originally Posted by Steffo

Why is putting a turbo on a V8 'overkill' ? I don't get it. Doesn't mean its got to be a psycho killer ultra power destructo engine.

I just meant, it seems like something I would never do to a car that was my daily driver. I mean, I would definately look at a supercharger, but I think a Turbo would be overkill because of the overall money it would cost altering the car to handle that power etc, and the fuel bill would be astronomical. Then again, we're talking about engines so I probably shouldn't bring fuel consumption into this...

I see what you mean by saying it doesn't have to be an ultra power destructo engine, and I guess that would cut down on some of the costs - but if that's the case - why not just Turbo an I6

_2: Only kidding (don't want to get into a debate on turboing a V8 vs and I6 - cause I don't know enough to win

: )

I don't want to make it seem like I'm having a go at V8's - cause I love them to. I just PERSONALLY wouldn't do it... But i am sure there are many others that would.

:

98AUXR6 · 12-08-2005, 11:29 AM

Quote:

Originally Posted by merlin

I think what people are saying is you can get more power out of the 6 with much less dollars than the 8 - Check out the APS kits available - Sure you can ultimatly make the 8 go faster but at what price?

What he said!! The turbo with better weight distribution probably comes up the better handler.

: Hang on! I voted V8

: OOPS!!

Love the GT!!!!!!! :king:

Steffo · 12-08-2005, 11:32 AM

Quote:

Originally Posted by Ford_Falcon_XR6

I just meant, it seems like something I would never do to a car that was my daily driver. I mean, I would definately look at a supercharger, but I think a Turbo would be overkill because of the overall money it would cost altering the car to handle that power etc, and the fuel bill would be astronomical. Then again, we're talking about engines so I probably shouldn't bring fuel consumption into this...

Thing is, you'd get better economy if it was turbocharged then supercharged, and its easier on the motor, especially moreso then a positive displacement supercharger, as the power delivery is more linear.

**ebxr8240** · 12-08-2005, 11:34 AM

Quote:

Originally Posted by Steffo

Why is putting a turbo on a V8 'overkill' ? I don't get it. Doesn't mean its got to be a psycho killer ultra power destructo engine.

Yea but he will consider a s/c ??? I don't get the logic...
Turbo's only come in when you need them and they deffinatly don't turn your car into a evil machine..They have been on truck motors for years without issues..Trouble is you can't walk in and buy a turbo V8..Well under $80k...There's nothing like a lazzy big turbo motor...
The way I see it 1/3 energy gets burnt / heat, 1/3 energy goes into piston, the other 1/3 goes out exhaust pipe .. Why wast it??? This is one reason turbo's are very epa friendly...Naturally with good management / tune like any engine...They can run heaps high ratio and keep performance as well which means better fuel economy...The little Smart car designed by M.Bends is turbo'd for that very reason....

Deadman · 12-08-2005, 11:55 AM

Quote:

Originally Posted by Steffo

Thing is, you'd get better economy if it was turbocharged then supercharged, and its easier on the motor, especially moreso then a positive displacement supercharger, as the power delivery is more linear.

Thanks for the info.

: [edit]: and EBXR8240 to

believe it or not - i'm not trying to make an *** out of myself on here

:

megsy · 12-08-2005, 12:01 PM

turbo. (period)

Gammaboy · 12-08-2005, 12:08 PM

Cubes >>>> boost,
Cubes + Boost >>>>> you

argonEL · 12-08-2005, 12:11 PM

Wheres the NA 4.0L button... ? :P

I chose the v8 over the i6T, im more of a fan of NA engines and smooth power delivery. Not a big fan of a turbo engine.

**Mechan1k** · 12-08-2005, 01:56 PM

One word:
BOOOOOOOOOOOOOOST

Love the sound of Turbo ... especially when you've pumped a bit of money into it.
You'd need to put triple the amount of money into an 8 to get the same power as the 6.

Turbo 6 is my vote.

Steffo · 12-08-2005, 02:29 PM

Quote:

Originally Posted by Mechan1k

One word:
You'd need to put triple the amount of money into an 8 to get the same power as the 6.

: :MrT_anim:

Des · 12-08-2005, 02:50 PM

To quote my wife when we drove both and bought one....
"It sounds like a vacuum cleaner from inside. Besides you'd have no licence left because you'd always be revin' it to get the same rush you get from the 8. Oh and don't talk to me about fuel economy, you don't buy a performance car to pussy foot around in it!" (Yes she's a keeper, the wife that is).
Yes the T6 is arguably "meatier sounding" at idle from outside the car, but you can't compare (to my son & my ears at least) to the sound of a Boss V8 (or most other 8's) when your up it from the drivers seat.
P.S I don't mind the XR8 being quieter on light throttle as my son can sleep through it, which keeps the wife happy, and in turn, keeps me happy.

Cheers,
Brad.... :eclipsee_

vino3o2 · 12-08-2005, 03:37 PM

V8 4 me please

Perana · 12-08-2005, 03:59 PM

Deff V8 for me !

Ryan · 12-08-2005, 04:08 PM

Wheres the option for "I like Holdens more" lol :hihi:

Gotta love the V8.

My uncle has a BA XR8 it sounds awesome.

:

View Poll Results: What type of Engine do you prefer?
4.0L Turbo I6	461	47.67%
5.4L V8	467	48.29%
Neither, I'm a 4cyl fan	11	1.14%
Candy	28	2.90%
Voters: 967. You may not vote on this poll