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S2KI Honda S2000 Forums (https://www.s2ki.com/forums/)
-   S2000 Modifications and Parts (https://www.s2ki.com/forums/s2000-modifications-parts-193/)
-   -   Single exhaust for the track...? (https://www.s2ki.com/forums/s2000-modifications-parts-193/single-exhaust-track-988758/)

2000ths 11-08-2012 04:44 PM
Originally Posted by rjones (Post 22139090)
My ASM 70 is in the mid 80's on a otherwise stock CR at most SCCA autocrosses I have done. I don't know what it would read on a road course. It would depend a lot on where they set the mic

edit

After going thru the sound logs that they still had on line. I hit a high of 90.7 at one event, I had a 97.7 but I think that was a bad reading. I hit 85 or below 9 times and 86-89 5 times.

They try and setup the mic at 50 ft from the edge of the course where we will be wide open.
that actually sounds pretty reasonable. how high in the RPM are you getting during the readings do you think?

andrewhake 11-08-2012 04:53 PM
There is no point on comparing any other sound test (i.e. Best Motoring, etc.) as every track day will measure sound differently. It sounds like most singles with a cat will pass at Laguna, which is a ridiculous sound level really. :thumbdn:

TougeHorseman 11-08-2012 05:07 PM
Originally Posted by andrewhake (Post 22139623)
There is no point on comparing any other sound test (i.e. Best Motoring, etc.) as every track day will measure sound differently. It sounds like most singles with a cat will pass at Laguna, which is a ridiculous sound level really. :thumbdn:
Seriously, why would a track put a sound level lower than the California legal limit...I guess the rich people that have Laguna in their back yard have some political sway.

2000ths 11-08-2012 05:52 PM
i'm running at laguna next week. if there are any guys running singles i'll have to quiz them on the details of their setup. like i said definitely seen guys getting flagged in the past and other messing around with elbows that seemed to have worked... and some that didn't.

rjones 11-13-2012 07:54 AM
Originally Posted by 2000ths (Post 22139606)
Originally Posted by rjones' timestamp='1352410531' post='22139090
My ASM 70 is in the mid 80's on a otherwise stock CR at most SCCA autocrosses I have done. I don't know what it would read on a road course. It would depend a lot on where they set the mic

edit

After going thru the sound logs that they still had on line. I hit a high of 90.7 at one event, I had a 97.7 but I think that was a bad reading. I hit 85 or below 9 times and 86-89 5 times.

They try and setup the mic at 50 ft from the edge of the course where we will be wide open.
that actually sounds pretty reasonable. how high in the RPM are you getting during the readings do you think?
I am not sure where the meter was, but I get close to if not hitting the rev limiter in 2nd at most events.

Andrie 11-14-2012 07:41 AM
My exhaust, Apexi, will. And it is for sale. Look at my Massive part out sale thread in for sale section. You can hear it first.

2000ths 11-15-2012 11:18 AM
^ thanks, i'll look for it now.

no luck at the track yesterday. only a hand full of S2000s there and no one running a single.


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