NSR-World Exhaust?

**Fri Mar 24, 2006 12:12 pm » Post: #1 » Download Post**

Andy,

Just wondering if there has been any recent progress on your exhaust project?

Don

**Fri Mar 24, 2006 5:16 pm » Post: #2 » Download Post**

Hello Don... yes there has!! Smile

We dyno'd a couple of sets at the befinning of the week, and the results are promising:

For the average road rider, the pipes would probably be ideal. At 8000rpm they are putting 6hp on my Ethos chambers. The peak power, while close to the Ethos, is just too low down for our liking though.

The pipes will be modified to shift peak power about 1000rpm higher and give some more over-rev, which we hope won't hurt the mid-range too much, but obviously everything is a trade-off.

If you compare the pipes to the following 3 graphs, then you can see just how stonking the mid-range really is:

Compared to the MC18 and MC21 running TYGA's, our pipes put 10hp on at 8000rpm, great for wheelies and "real world" riding, and even the MC28 with it's near legendry bottom-end loses out 6-7hp!!

As you can see, I think there is some serious potential to come from our designs, and even if we sacrifice all 10hp in the mid-range to get the peak RPM/power that we want (which we won't!!), we will still match the current market leaders! Very Happy

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NSR-WORLD.COM

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**Fri Mar 24, 2006 5:41 pm » Post: #3 » Download Post**

We've know that most race pipes are rubbish for normal use and totally trounced by std pipes everywhere but at the top for a while now, wheather you can have your cake and eat it remains to be seen.

Maybe you can't, Keith's 74bhp monster made peak power before 11,000.

I'm seriously considering taking a Dremel to my OE '28 pipes and having them chromed, I'd be able to get at least the sort of mid range you're getting (the '28 dyno sheet is mine), run it on quiet trackdays and not get busted by the old bill.
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