Cubes or boost?

[Steve]

I'm hoping that someone who has experience on both sides of this fence can help.

Let's assume for argument's sake that any engine can be stroked (not bored), so this will include the Boss motors and that you could also buy an off the shelf blower for it to produce similar power levels on a reasonable boost level with stock engine internals. Would you be better off stroking or blowing it and why?

I'm not really interested in the maximum power output as such but more in the day to day driveability of the end result.

If it helps, assume it's a modern car backed by an auto. Any type of engine is ok for this argument but preferably a V8. Blower would be a twin screw intercooled.

[Bossxr8]

Blown will always make more power and torque by a long way, compared to a stroker, which will require a lot more mods to take advantage of the higher capacity. Just stroking it and doing nothing else to say the heads, cams etc won't really make that much of a difference.

[schnoods]

Stroker.

Blower kits arent bad, I'd be worried in the legalities more than anything else, i've come close a few times.

Also the lumpier, effortless grunt combined with an auto would be my pick. Though the blower would be a close 2nd!

[Steve]

Originally Posted by Bossxr8

Blown will always make more power and torque by a long way, compared to a stroker, which will require a lot more mods to take advantage of the higher capacity. Just stroking it and doing nothing else to say the heads, cams etc won't really make that much of a difference.

Yeah, I wasn't sure about the heads. That might be something done as funds allow. Camming it was always going to be part of the equation along with the usual stuff like crank, rods, pistons, bearings, springs etc.

[nugget378]

Depends on the engine, I saw a stroked LS (438ci) beat a blown one by a fair margin at a track day a couple of months ago..I cant speak for the drive- ability of them, except to say the blown one threw a belt..

[Steve]

Originally Posted by nugget378

Depends on the engine, I saw a stroked LS (438ci) beat a blown one by a fair margin at a track day a couple of months ago..I cant speak for the drive- ability of them, except to say the blown one threw a belt..

That's a good point, less moving parts with a stroker and less to go wrong.

[Bad Bird]

Boost and cubes. They compliment each other so well.

I'm a total fence-sitter...

[Steve]

Originally Posted by Bad Bird

Boost and cubes. They compliment each other so well.

I'm a total fence-sitter...

That'd be nice but it requires VERY deep pockets.

[Gammaboy]

Originally Posted by Bad Bird

Boost and cubes. They compliment each other so well.

I'm a total fence-sitter...

Yup.
Boot + Cubes >> either.

[Torquen]

Buy a turbo :P lol
Id go blower for a daily over a stroker.

[GTP owner]

Boost - it can be taken off and used on your next car, wheras the stroker you lose big time when you sell

[DJM83]

Stroker

[pks54]

sounds like your planning a project here. If so what engine are you thinking of. You mentioned in your first post about a BOSS motor. If this is the case of the engine you are thinking of doing, then stroking it is out of the question.

[Bossxr8]

Originally Posted by pks54

sounds like your planning a project here. If so what engine are you thinking of. You mentioned in your first post about a BOSS motor. If this is the case of the engine you are thinking of doing, then stroking it is out of the question.

This^^^^

If your talking about doing this to a Boss then don't bother, the stroke is too long as it is, and no one bothers doing it. The only decent way to increase capacity on a Boss is to by an aftermarket block that can be bored out to 6 litres.

I don't think anyone makes stroker cranks for the Boss, one company did make a few but they only sold in single figures in the US.

[geckoGT]

blown for sure, so many have found here that they have received more bang for their buck using boost over cubes, proven time and again.

[phillyc]

Displacement on Demand is getting attention from several makers these days with cylinder deactivation. Fools.

We've already had it for ages and it's called turbo-charging...

Go the 'boost' option. That will be the next car for me. ie BF XR6T or hopefully an FG.

[Yellow_Festiva]

A blower would be better I would imagine for an every day driver.

More manufacturers are looking towards boosting smaller engines over larger capacity.

That way you still have the efficiency and lower running costs of less cubes, but should you plant the right foot you have the added performance of the turbo when needed.

The new range of VW models is a prime example. They replaced the 2L sports model with a 1.4 turbo and supercharged engine. More power, and 25% less fuel consumption.

[xbgs351]

Regardless of what you requested, it depends on the motor.

[Steve]

Originally Posted by xbgs351

Regardless of what you requested, it depends on the motor.

Chrysler.

[schnoods]

Originally Posted by Steve

Chrysler.

Which motor??

[Steve]

Originally Posted by schnoods

Which motor??

6.1 Hemi

[Coogs289]

so what are we stroking and blowing anyway? :

[Steve]

I'm not planning on stroking a Boss motor. In my original post I said let's assume that you could stroke one just to include it for argument's sake. I know about the SHM blocks and also the big $$$ involved in putting one together.

Turbo is out of the question in this case.

[TURBOTAXI]

This is a no brainer. Boost.


I have had neanderthal V8's 2x 351c, 302w 289w 1x 302w (injected) 1x quad cam 32v 1UZFE, Hi tech V8's, N/a 6's and turbo sixes.

The turbo sixes are faster than any of the others and do it on bugger all fuel. Look at spoolmans car - 9.6l/100 and near 400rwkw.

[Steve]

Originally Posted by TURBOTAXI

This is a no brainer. Boost.


I have had neanderthal V8's 2x 351c, 302w 289w 1x 302w (injected) 1x quad cam 32v 1UZFE, Hi tech V8's, N/a 6's and turbo sixes.

The turbo sixes are faster than any of the others and do it on bugger all fuel. Look at spoolmans car - 9.6l/100 and near 400rwkw.

That's just blown me away. Both my cars are sitting up around 18l/100. I really should put my right foot on a weight reduction program.

[Torquen]

Originally Posted by Steve

That's just blown me away. Both my cars are sitting up around 18l/100. I really should put my right foot on a weight reduction program.

Lol, yeh im sitting at 19.2L per 100km. Right foot on a diet... :togo: f-that, stuff fuel fun is where im at :evil3:

[mrbaxr6t]

I have a turboed vehicle and its awesome the wife can drive it tame and so can I and when I want to get it moving I can do that too by running higher in the rev range. I voted boost BOOST BOOST

disclaimer : I posted whilst drunk its my one night off K

[Iggypoppin']

real men get stroked, then blown
if it was a V8 id stroke, then blow it. no use charging an engine thats totally stock, then removing everything to stroke it later. stroke it first...then blow.**
if this was to be expanded and include any motor at all...turbo 4l I6. just cos im biased as all hell. but im a fence sitter really.





***no innuendo intended here, really.

[82XD393.3v]

Originally Posted by Torquen

Lol, yeh im sitting at 19.2L per 100km. Right foot on a diet... :togo: f-that, stuff fuel fun is where im at :evil3:

you should try lpg like me hehe or a stroker

[Mr Hardware]

i can't believe i'm saying this, but boost.
A year or two ago i would have been firmly on the Cubes side. The bigger the motor the better, right?
Well i've been schooled once or twice by mates with forced induction cars - and no longer am i a cubes lover. I voted blower.