Boxster on dyno

[David_J]

I spent $680 before tax on the entire exhaust including labor. I'm not sure of the exact weight loss, but it's a lot. Going from the stock heavy muffler and 2nd cats to a small single muffler with the pipes has got to be a lot for a mod like this.

This past weekend Josh and I discovered a small different between his 2000 S and my 2001 S. His 2nd cats have an O2 sensor after the cat, when mine did not. Mine only has an O2 sensor before the 1st cat, and then one right after it, all on the header. Everything I did to the exhaust was after all O2 sensors.

-David

David_J, how much do they charge for a dyno-run? Thanks.

[David_J]

3 runs cost $100. Another place around here charges $145 for 6 runs.

[JP-s-in st. louis]

what kind of dyno is the other and who has it?

[David_J]

They have both a Mustang and a DynoJet. I will PM you the info.

-David

[eslai]

Originally Posted by David_J

I spent $680 before tax on the entire exhaust including labor. I'm not sure of the exact weight loss, but it's a lot. Going from the stock heavy muffler and 2nd cats to a small single muffler with the pipes has got to be a lot for a mod like this.

If the weight savings interest you, you should also maybe be interested in learning about how this has affected your weight distribution, eh? Wonder if the car handles any differently now.

[David_J]

I'm sure it changed it a little, but nothing that I can tell. It should be no different than when I pull the spare tire out up front for an autocross event. When I put in new seats, that will also reduce weight and change the distribution.

I guess there are many things that can change the weight distribution, but that is fine. If you calculate how much 20-30lbs changes it, it's not much.

-David

[eslai]

That's pretty much what I was getting at. People like to ask about weight savings and all that stuff, but if it's not a change along the lines of 100 pounds or more, the weight savings are pretty unnoticeable.

[David_J]

The weight loss from the exhaust makes up for what I've gained this year by eating too much.

[wanna986]

What would a stock Boxster S put down at the wheels?
Is there a lot of loss due to tranny?
I'm curious because my experience to this point has been North American products.
Anybody know?

[blue2000s]

Originally Posted by wanna986

What would a stock Boxster S put down at the wheels?
Is there a lot of loss due to tranny?
I'm curious because my experience to this point has been North American products.
Anybody know?

It depends on the dyno and it's calibration to give accurate numbers, but conventional wisdom says 12-15% drivetrain loss, so 213-220 hp at the wheels.

[Adam]

Originally Posted by wanna986

What would a stock Boxster S put down at the wheels?
Anybody know?

Depends what year boxster S you are referring too.