What does NA does to a Car!And also what if you have turbo does it do

[jward24]

Hey i have got a full tuned car and i can add NA to it but it will decrease it's BHP.Will my car be slower?What are NA's advantages/disadvantages,should i do it?

Also what does NA actually do to a car because i have experiece with my MX-5 where it is now slower top speed because of NA.

 

[oosacker]

NA asp will give better engine response and high revs.

 

[jward24]

is it a slower top end speed though.

 

[12sec. Civic]

NA means Naturally Aspirated, as opposed to Forced Induction from a turbo or supercharger, Natural Aspiration involves high compression head gaskets and high comp cyl heads, a stage 4 NA car would have around 12.5:1 comp ratio where a turbo couldnt pump any more air into the engine. NA cars do not have as much torque as turbos because turbos can keep amazing torque all the way across the power band, where as NA usually has a peak or a gradual increase. NA is a little better because you will be just as fast with the same horsepower but you can be more aggressive with the throttle out of turns and the car is less likely to spin out, as opposed to turbo.

 

[Joey]

just as fast with the hp, yes.
but hardly ever does a car have the same hp NA as it does turbo.

 

[troy1]

I always go for turbo, true N/A has more "stength" and heavy pick-up, but I think turbo's does it overall.

 

[12sec. Civic]

Originally posted by troy1
I always go for turbo, true N/A has more "stength" and heavy pick-up, but I think turbo's does it overall.

yah but sometimes a Turbo adds SO much torque that you are left spinning your wheels like crazy and you would probably be faster on some courses with LESS NA horsepower.

 

[toleman19]

Originally posted by troy1
I always go for turbo, true N/A has more "stength" and heavy pick-up, but I think turbo's does it overall.

I go for NA cars.

 

[risingson77]

It depends, however. I found my ITR was better off with a small turbo than with full N/A tuning. With N/A, the powerband was like a light switch...nothing, then wheelspin. Made the car very unpredictable, and hard to bend through corners. Turbo gave me a nice, fat powerband that came on smoothly...and 321 BHP to boot.