Does having the top town really slow down the S2000? (results)
Originally posted by Wesmaster
So, you guys just ran in 1st gear and shut down?
So, you guys just ran in 1st gear and shut down?
Ask Insomniak, he has ran him before. He can vow that this guy has a stronger car with the mods he had before the header.
I've just seen varying results racing NA S2000s vs other NA S2000s. Specifically Insomniak's car vs Moyopoyo's car. <shrug> Just trying to help you understand why the results weren't consistent.
Yeah, I understand the consistency factor. We try to make it pretty consistent here in our little S2000 group. We basically know who has a strong car or vice versa. We have ran each other countless times.
Everytime someone gets a new part, we will test it the old fashion way.
Everytime someone gets a new part, we will test it the old fashion way.
Driving with the top down makes a HUGE difference! Try this: Drop the top, fill the tank and reset the trip meter. Now drive around using 4 bars of gas. Now do the same with the top up. You will gain at least 5MPG. Why? because you are pushing more air with the top down, rather you are pulling it in the form of drag. On the freeway, hold your hand out the window and guestimate the force pushing on it. Now consider the force acting on the car with the top down. We are talking hundreds of pounds in extra effort to move the car through the air at 60MPH.
I assume that you start out even but as the speeds increase you begin to pull away. That's because your car is hundreds of pounds "lighter" than your friends at that point. It's like tractor pull. The faster and further you go the more resistance you encounter until you hit about 135 when the engine can no longer overcome that resistance. Hold up a sheet of plywood in a 30 MPH breeze, I bet you can't.
You will accelerate faster and use less fuel doing it at any speed but the results are noticable anywhere from about 20MPH and up.
I assume that you start out even but as the speeds increase you begin to pull away. That's because your car is hundreds of pounds "lighter" than your friends at that point. It's like tractor pull. The faster and further you go the more resistance you encounter until you hit about 135 when the engine can no longer overcome that resistance. Hold up a sheet of plywood in a 30 MPH breeze, I bet you can't.
You will accelerate faster and use less fuel doing it at any speed but the results are noticable anywhere from about 20MPH and up.
I finally saw this thread tonight. I'm as lost as Quan as to why I'm not pulling in the upper rpm band like I use to before the Mugen header. I just got new oem retainers put in (Don't ask
) & the oem header gasket was replaced w/a new one when the header was installed. Does the new oem retainer (break-in period???) and/or the new header gasket (Seal up completely/properly???) have anything to do w/me losing my high/top end for now? 
OT, but the Mugen header definitely helps out my mid-range torque. jk (Jack) can vouch for that.
) & the oem header gasket was replaced w/a new one when the header was installed. Does the new oem retainer (break-in period???) and/or the new header gasket (Seal up completely/properly???) have anything to do w/me losing my high/top end for now? 
OT, but the Mugen header definitely helps out my mid-range torque. jk (Jack) can vouch for that.



