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Naturally Aspirated or Forced Induction?

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A supercharger will give you power everywhere as well. No spooling necessary.

As for what's better, depends on what you want. In terms of pure efficiency, a turbocharger wins, but a naturally aspirated engine responds most quickly, and a supercharged engine will have the most low-end torque (assuming a twin-screw supercharger).

ZV
 
Originally posted by: Stumps
Originally posted by: ManyBeers
Naturally aspirated ,especially if it is a Holley carbed, solid lifter Crower cammed ,headered small block chevy mahing around 400 hp, like the engine in my 70 1/2 Z/28 was. Sounded totally bitchin. Not loud but stout.
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Holley would have to be one of the crappiest carbs going...sure they are ok if you don't mind tuning them every weekend, but I prefer to be able to drive my car on the weekend not tune them.

as for the question, well I own a worked V8 1978 Ford Falcon so I prefer the brute power of a NA V8, but I have driven Tunnel rammed and supercharged V8's and they are insane to drive, so much power, you can't just floor it otherwise it will just wheel spin all of the time.

however I also own an Inline 6 powered 86 Ford Falcon and I would like to turbo it as they falcon 4.1litre is capable of making over 600hp with a big fat turbo and a well sorted injection system, this can push a 1350kg Falcon into 10's down the quarter mile.

so it really depends on what sort of engine you have, if it's a crappy 4 banger with low torque,a Turbo or Supercharger is the way to go, but lager engines such as the falocn 6 and V8 can be heaps of fun with out them...but they do go hell of a lot better with them.
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No way, mine was a 700 cfm double-pumper and once it was dialed in it worked perfectly. I never had to work on it.
 
Originally posted by: ManyBeers

No way, mine was a 700 cfm double-pumper and once it was dialed in it worked perfectly. I never had to work on it.
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you must have been lucky, every 4bbl holley i've own has been hopeless when it came to keeping them in tune, I could usually get a few weeks out of them before they started to muck up(I've own the 600M, 700 SQ, and a 780 SQ), since I ditch them and fitted a modified factory carte to my engine I have barely had to lift the bonnet in the past year or so, it only goes up to check to water, oil and PS fluid...and of course the usually maintaince of course...but the carb hasn't need touching.

although A few years ago I own a 76 ford fairlane fitted with a 4.9litre (302cu) Cleveland V8 and it had a 2bbl 350 holley on it and it was pretty good, it didn't do much for the fuel economy(I had a C4 auto behind the V8)but it was pretty reliable, it only need tuning every 6 months or so.

Most of my friends who have had holley equiped V8 have had similar problems and usually ditched them for the factory carbs or switched to EFI.
 
in general - large V8 w/ twin turbos? 😀

but for 4's... i would say forced induction is the best way (plus i love hearing the turbo spool... i:heart:my passat 1.8T
 
Originally posted by: Stumps
Originally posted by: ManyBeers

No way, mine was a 700 cfm double-pumper and once it was dialed in it worked perfectly. I never had to work on it.
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you must have been lucky, every 4bbl holley i've own has been hopeless when it came to keeping them in tune, I could usually get a few weeks out of them before they started to muck up(I've own the 600M, 700 SQ, and a 780 SQ), since I ditch them and fitted a modified factory carte to my engine I have barely had to lift the bonnet in the past year or so, it only goes up to check to water, oil and PS fluid...and of course the usually maintaince of course...but the carb hasn't need touching.

although A few years ago I own a 76 ford fairlane fitted with a 4.9litre (302cu) Cleveland V8 and it had a 2bbl 350 holley on it and it was pretty good, it didn't do much for the fuel economy(I had a C4 auto behind the V8)but it was pretty reliable, it only need tuning every 6 months or so.

Most of my friends who have had holley equiped V8 have had similar problems and usually ditched them for the factory carbs or switched to EFI.
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Could be, I don't know. In fact once I got my engine together and dialed in the only maintenance I had to do regularly(weekly or bi-weekly) was adjust the lifters.
 
Originally posted by: ManyBeers
Originally posted by: Stumps
Originally posted by: ManyBeers

No way, mine was a 700 cfm double-pumper and once it was dialed in it worked perfectly. I never had to work on it.
Click to expand...

you must have been lucky, every 4bbl holley i've own has been hopeless when it came to keeping them in tune, I could usually get a few weeks out of them before they started to muck up(I've own the 600M, 700 SQ, and a 780 SQ), since I ditch them and fitted a modified factory carte to my engine I have barely had to lift the bonnet in the past year or so, it only goes up to check to water, oil and PS fluid...and of course the usually maintaince of course...but the carb hasn't need touching.

although A few years ago I own a 76 ford fairlane fitted with a 4.9litre (302cu) Cleveland V8 and it had a 2bbl 350 holley on it and it was pretty good, it didn't do much for the fuel economy(I had a C4 auto behind the V8)but it was pretty reliable, it only need tuning every 6 months or so.

Most of my friends who have had holley equiped V8 have had similar problems and usually ditched them for the factory carbs or switched to EFI.
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Could be, I don't know. In fact once I got my engine together and dialed in the only maintenance I had to do regularly(weekly or bi-weekly) was adjust the lifters.
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it doesnt really matter any way, I got much better fuel economy and mid range and top end performance when I switched back to the Carter...although now the fuel prices are hitting AU$1.55 litre for PULP I might consider an EFI system and ditch the carb altogether.
 
I have to say Forced Induction. I really love the sound of the turbo on my car!! So for a daily driver (with some spice) I say forced induction. For a weekend/summer car I would deffinitly say some NA V8 beast though.
 
Originally posted by: JulesMaximus
Originally posted by: RedArmy
I guess there isn't any I4 love here. It seems all hope is lost
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I prefer a flat 4...turbocharged. 😎
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squished flat 4...after my V8 stomps it in to the ground and smokes up on it😀
 
Depends how much $$ I have. If it's a budget weekend racer, it will be NA. Reliability beats fun in this scenario.

If I have $$ to burn, FI.
 
They're all good. I just hate the turbo cars that make the pssssshhhhh sound. It's all for show. Properly setup turbo cars do not make that noise.

My favorite engine in a lighter car would be a large N/A OHC V6.

 
Originally posted by: RedArmy
Originally posted by: Minjin
Both have their advantages and disadvantages. Forced induction is certainly MUCH cheaper to make power. And for street performance with a 4 cyl, for it to have any reasonable power, it will be a dog in the low rpms that you use most often if its NA. If you think it takes a long time for a turbo car to build power, you're driving the wrong ones (if you've driven one at all)...

Mark
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I was kinda referring to poorly built 4 cylinders where the boost only kicked in around 6,000rpm since the people had no freakin clue what they were doing when they builit it so right before they had to shift they were only making a little horsepower from the turbo. I've been in and around many a car that has the right setup, but not everyone builds em' right. Plus Im trying to factor into the equation the reliablity of a turbo setup in general since you have to worry about shaft play later on in the life of the car if you don't maintain it right and other related issues.
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Then I guess I'm confused as to why you are comparing lousy turbo setups to good NA setups. As for reliability and maintaining it right, change the oil when you are supposed to and most turbos will last 150-200k. The one on my Volvo has about 230k on it.

What exactly is the point of this thread?

Mark

 
Wheres the Forced Induction and I drive a camry option?!

Turbo for me..just don't like all the added noise of an open wastegate. Don't like the BOV? Just stick with the compressor surge or turkey sound 😉
 
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