First of all I was wondering if the throttle body helps noticeably, torque?

Secondly how likely is it for the service department to realize that it was replaced with one with a bigger boar? (warranty issues)

And Finally when are you going to carry them Randy?

Will I get more of a difference from a magnaflow in the lower end?

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<img src="http://minman.hypermart.net/MCO%20copy.jpg">

 

finally(one N) and no
THE GRAMMAR MAN

 

what spelling error? Sorry about that

 

The throttle body makes a difference throughout the RPM range - the amount of difference depends on the state of modification of your car. The throttle body makes a seat of the pants change, but the dyno shows a change of only 4-6 horsepower with a pulleyed, intaked and exhausted car.

As far as noticing it goes - if they look at it, they will probably see it. The black plastic piece is pulled off to change the butterfly, and then aerospace tape is used to seal it again. If they see the tape, they may notice something has been done. That said, it would be very tough for the dealer to say the throttle body caused any engine damge that would be under warranty.

I carry them now, but it's more of a taking orders thing, as the company that makes them is lagging with the current orders I already have. Take a look at the vendor announcements area for the pricing details.

Grammar man - you missed the boar vs. bore

Hope that helps!

Randy

 

Hi Randy, Dirtybird and Yellocooper,
Magnaflow needs to be capitalized, Grammar Man. It is a proper noun. Now that you are out there monitoring and correcting the illiterate MCO members, some of us will be watching you!
Randy, I hope everything with Zack is OK. I hate to sound like an old Jewish guy, but health is the most important thing. I'm not that old! But I've got two kids.
When you have some time, and I realize that may be a while, call me.

Sol
Perfect Power Inc

 

Y'all gots any graphz?

It would surprise me if the throttle body resulted in low rpm gains since the upstream pressure drop is greatest at higher rpm anyway. The best the throttle can do is to reduce this pressure drop slightly. On a stock engine, the total pressure drop through the snorkel, pipe 1, airbox, air filter, pipe 2, throttle body, and pipe 3 is as follows:

0.13 psi at 3000 rpm
0.30 psi at 4000 rpm
0.58 psi at 5000 rpm
0.96 psi at 6000 rpm
1.37 psi at 6950 rpm

You can see that even if the throttle made the entire system 50% less restrictive (I doubt it, but it's a number to throw in there), the gains would be minimal at low rpm.

 

Hi Andy,
I agree. The perception at part throttle is that there is more power, because 50% opening on the big throttle may produce airflow equal to 75% opening on the original throttle. At full throttle, at high rpm, there may be an improvement if the original throttle is under its optimum size. I'm sure it is, as Randy has measured power gains with it. As far as low end WOT goes, there is a good chance a dyno run will show full torque is available before the throttle is wide open. In the old days this might pose problems (with carburetors) but with engine management most people would not notice a throttle that's a bit too big.

Sol