LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

NA vs Supercharging?

Old Jan 25, 2005 | 11:06 PM
  #1  
fstenuf's Avatar
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NA vs Supercharging?

hey guys i was wondering if you could give me some valid reasons why NA is better then supercharging? i need to give a speech and some kid talked about supercharging, so i figured i'd throw back some info to help persuade people to go NA .

This is a persuasion speech but i need to have some valid thoughts/facts(acctual hp #'s, torque #'s, money invested into your projects SC'd or NA). so if you guys could give me your full names so that way i could use you in my speech

i realize this could be in the lounge area but i figured there would be lot more feed back up here. if if is moved i understand.

thank you all for your input
Old Jan 26, 2005 | 12:00 AM
  #2  
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Re: NA vs Supercharging?

Just have to point out that the fact remains... it is WAYY more reliable.. and credible when you try to REPRESENT. NA cars that are fast hold much more credibility than supercharged ones that May.. or May not be working after a 12 Sec. run.....

--Troy
Old Jan 26, 2005 | 12:41 AM
  #3  
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Re: NA vs Supercharging?

Well you might have trouble on this side i think, if the motor is built for boost and is tuned right it will be just as reliable as an n/a motor. A supercharged motor will be more streetable than a n/a motor of the same power and displacement because the supercharged car will not have to run a very big cam compared to the n/a motor. Sorry i didn't help much, lol, i do admit that it is a lot cooler to run fast n/a than just slaping a supercharger on it. now if you include turbochargers they take time to fullu spool up but that is about the only down side to a turbo. if i was you i would pick another topic because i don't think you will be alble to find enough supporting facts.
Old Jan 26, 2005 | 12:45 AM
  #4  
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Re: NA vs Supercharging?

ya i'm thinkin about changing my topic. i have facts on the new z06 and the 2006 viper coupe. so maybe i'll try persuade people to buy the new z06 instead of viper. i appreciate all the help though
Old Jan 26, 2005 | 01:19 AM
  #5  
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Re: NA vs Supercharging?

Yea, that might be sweet, last semester i had speech and i did my persuasive speach on banning cell phone use while driving, it went pretty well and there is a good bit of information online about it.
Old Jan 26, 2005 | 05:06 AM
  #6  
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Re: NA vs Supercharging?

Well blowers are pretty great...but playing the devil's advocate...

- no matter how you cut it, a blower setup has more moving parts, and more moving parts means more things that can potentially fail
- adding a blower adds weight (bad) to the front end (bad for weight transfer)
- blowers take up space in the engine compartment
Old Jan 26, 2005 | 07:58 AM
  #7  
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Re: NA vs Supercharging?

I'm an NA guy too, but it would be hard to convince me that NA is more reliable than going with a blower.
NA heads-cam upgrades for big power will then increase the valve train wear and tear. Blower cars can go easy on the valve train.
Yea a blower might throw the belt and rip up a few things underhood.
Yea a blower system is heavy.
Yea a blower has many more moving parts and things that "could" go wrong.
Yea a blower pulls on the crank snout and wears on the crank and bearings.
But for the street a blower is so much more streetable and a big cam natural car.
Maybe it's a toss up.
Karl Ellwein
Old Jan 26, 2005 | 08:49 AM
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Re: NA vs Supercharging?

Z06 Vs. Viper will be a nice topic. 500 hp both and american cars. I think Z06 is lighther. More aerodynamic. But then again the viper cool factor is very high.
Old Jan 26, 2005 | 09:12 AM
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Re: NA vs Supercharging?

You will lose the N/A versus S/C debate. If you want to compare power levels per dollar, then SC will get you there faster and cheaper. If you want to compare two vehicles with LT1's. One makes 450rwhp on 8psi with a blower while the heads/cam car makes 450rwhp as well. How radical is the N/A car going to be compared to a the S/C. Pretty damn radical!!!! Crazy lope, surging at low rpms and you'll have to wind the sucker to 7k rpm to get that power. The S/C car will have stock idle and driveability and only start making serious power when the rpm's increase. You can take more pride in saying you have 450rwhp N/A because its harder to do, but thats about it.
Old Jan 26, 2005 | 11:58 AM
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Re: NA vs Supercharging?

How about nitrous vs S/C??

Theres plenty of advantages to Nitrous mainly price!
Old Jan 26, 2005 | 12:12 PM
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Re: NA vs Supercharging?

Originally Posted by dabez1
How about nitrous vs S/C??

Theres plenty of advantages to Nitrous mainly price!
I dont have to fill up my Supercharger.hehe
Old Jan 26, 2005 | 12:15 PM
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Re: NA vs Supercharging?

for viper vs vette. You can use the recall on the viper as a reason to favor the vette. This little recall was for the catylitic converter getting too hot if idled for around 30 minutes so that the car would catch on fire.

Good Luck
Ryan
Old Jan 26, 2005 | 03:41 PM
  #13  
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Re: NA vs Supercharging?

Na..well you do do it in stages and its a bit cheaper..some good headers,cam and heads maybe 2000 US or so not counting labor.The car won't be that undriveable a 306 is not that crazy and should hit 400rwhp with good heads..
It will have some lope and possibly a bit of surge but you can get some sleeper grinds too that still make good power.
Maintenance same as before..Also if you are talking na versus a centrifical like the ati or vortech then I am quite sure area under the curve is much better on the na car.Na cars have no lag but powerband can be a bit peaky you have to rev higher but you can compensate for low end torque loss thru cams and stuff with stall and gearing.

Centrificals..they aren't that heavy..pretty light really so that argument isn't very useful.They can make it not much fun to work on the motor.They are pricey double heads/cam and headers.Also they don't make this hp at lower rpm they go to full boost as the rpms climb.This is not that bad a deal as when you are racing 1/4 mile you take it thru the gears fast but on say a highway rollon you won't have your full power at say third in auto or fifth or sixth in standard but of course you can gear down to bring up the revs.
They also can have problems with belts..And have lt1 buddy with procharger.He put it on stock motor.it was 6psi or something.He tightened up or did some deal to eliminate or reduce the belt slippage he was getting and the motor didn't last a week.Kaboom..!!! He likely would have been fine but he got greedy when Na approx 415hp ls1 buddy beat him badly several times in a row in full quartermile and roll ons.Now at very high boost levels these centrificals seem to get fast.Maybe faster than an na at that point but that takes fully built internals and lots of boost.And sometimes race gas.

Turbos are the darlings of most hotrodders although some like the sound of na cars and some like blower whine.Turbo sounds can be cool too.Turbos make more torque than na or supercharger cars and can be at full boost at like 2400 rpm and hold it all the way to redline.This can make them much faster than centrificals especially on roll on races and you don't need to gear down as much.Turbos have been outlawed in many classes of racing.

Nitrous works well and gives big torque and hear works at any altitude.Na cars get hurt bad at higher altitudes and turbo and supercharged cars not quite as bad.

Anyway all power adders are fun and have their place.My 96 vert has nitrous
,my 92 talon has big aftermarket turbo and my 99 will likely get a nice rear mount turbo shortly.But you can combine power adders nicely too..na and spray and turbo and spray.not usually supers and spray but have seen that too.

Personally turbo is most fun.Car can idle like stock and be mellow as a pussycat around town but when that big boost hits hold on to your hat..!!
and the turbo never runs empty like the bottle and no chance na power can ever hope to come close to what turbos can do.They can make my little 2.0 litre talon put out way over 500 engine hp.And make v8s put out over the 1000 hp mark.Now thats impressive.
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