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Air box mod done
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outback_imp Offline
First Service Completed


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RE: Air box mod done
#17

(10-09-2021, 02:18 PM)SportsterDoc_imp Wrote:
(10-09-2021, 10:08 AM)PowerDubs_imp Wrote:
(10-08-2021, 10:06 PM)Sparky80_imp Wrote: i ripped the wire mesh that goes around the stock filter off. Seems that is quite intrusive for airflow.
My head thinks it made a difference and it revs up/down faster but I'm not sure. Was free though


It is not. The stock filter flows waaay more cfm than our engine needs.


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(10-08-2021, 10:50 PM)teamvisegrip_imp Wrote: I will chime in on this one. Since I have done all of this and added the TSR Intake Funnels at the Throttle Bodies. All of it plus the refresh of the CPU gave me noticeable power increase and better ride. With just the pipe nothing really noticeable.

I have posted this before but will post again for the new guys.

From this experience I gained doing these modifications I determined the largest restriction was at the Throttle Bodies. You can see the difference if you follow the link. I am computer stupid and do not know how to reduce the pictures to post here. The silver intakes are the TSR parts and the black ones the original.

I have finally found a place that will put the bike on a dyno and hope to do this next summer.

https://app.photobucket.com/u/teamvisegr...02638c3597


The velocity stacks are indeed a large restriction- the TSR are currently the largest / least restrictive so in theory should make the most power.

They are pricey. And might not be made anymore?

The stock velocity stacks can be bored out with good results - just time and grinding materials. They flow at least enough air- bored out- that I made 103whp + 75wtq. Not sure how the TSR would have changed that.

I am now awaiting a custom set of dual height velocity stacks that should do better than both. I will dyno.


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Yep

http://cb1100forum.com/forum/showthread....hlight=CFM

CFM calculations on page 2 of this thread.

Yep

http://cb1100forum.com/forum/showthread....hlight=CFM

CFM calculations on page 2 of this thread.
I just got an email from the guy who makes the tsr funnels for the throttle bodies. He quoted me 560.00 usd for a set.
(10-09-2021, 12:36 PM)teamvisegrip_imp Wrote: Hey PowerDubs... I figured you would chime in. LOL!

Yes the TSR Funnels for the Throttle Bodies are not in production. At least they were not when I bought mine and I had to search hard to ge them. For me the price was right as they were a proven set-up. Plus it was a lot easier than making/refitting the originals. They look great and fit amazingly well.

Next year I will get it o the dyno at some point. It will be interesting what it is running and see if it can be improved on as far as programing.

Hang in there and post up the new funnels when you get them.

I just got an email from the guy who makes the tsr funnels for the throttle bodies. He quoted me 560.00 usd for a set.


10-09-2021, 10:21 PM
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Messages In This Thread
Air box mod done - by Spiderwatts_imp - 11-13-2017, 01:09 PM
RE: Air box mod done - by Nortoon_imp - 11-14-2017, 02:05 AM
RE: Air box mod done - by camoto_imp - 11-14-2017, 06:41 AM
RE: Air box mod done - by 4 Paws_imp - 11-14-2017, 11:19 AM
RE: Air box mod done - by Gumby 1100_imp - 11-14-2017, 10:10 PM
RE: Air box mod done - by SportsterDoc_imp - 11-14-2017, 10:45 PM
RE: Air box mod done - by SportsterDoc_imp - 11-15-2017, 10:07 AM
RE: Air box mod done - by Bheezy27403_imp - 11-17-2017, 02:47 AM
 RE: Air box mod done - by itstuantran_imp - 11-19-2017, 06:24 PM
RE: Air box mod done - by SportsterDoc_imp - 10-08-2021, 05:21 AM
RE: Air box mod done - by Tev62 - 10-08-2021, 07:40 PM
RE: Air box mod done - by Sparky80_imp - 10-08-2021, 10:06 PM
RE: Air box mod done - by teamvisegrip_imp - 10-08-2021, 10:50 PM
Air box mod done - by PowerDubs_imp - 10-09-2021, 10:08 AM
RE: Air box mod done - by teamvisegrip_imp - 10-09-2021, 12:36 PM
RE: Air box mod done - by SportsterDoc_imp - 10-09-2021, 02:18 PM
RE: Air box mod done - by outback_imp - 10-09-2021, 10:21 PM
RE: Air box mod done - by PowerDubs_imp - 10-10-2021, 03:13 AM
RE: Air box mod done - by E11even_Hunnit - 10-10-2021, 08:49 AM
RE: Air box mod done - by teamvisegrip_imp - 10-10-2021, 12:22 PM

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