|
Post by muttsnuts on Jul 9, 2017 16:43:50 GMT 1
As some of you know I am working with a few lads developing some exhausts for various bikes, the other week I published some results and availability of the YPVS exhausts, today we have been testing the LC exhausts that have been developed, below are the results Normally I would only show the results compared to the Allspeed, but since so many people have accused me and the lads of copying TSA's, I am publishing the 2 pipes on the same graph so you can see how very, very different they are, just because they may look very similar does not mean they are copies, the results speak for themselves, so I hope this puts an end to people accusing me of stuff they cannot back up with facts Mid Range Pipes, made to work between 5k and 8k rpm - good for every day usage and riding Pipe vs Allspeed Pipe vs TSA Good Mid and Good BHP - bit of everything, very useable Pipe vs Allspeed Pipe vs TSA All tests have been done on my test bike which has not been changed or altered in anyway for all tests done since 2013, it still produces consistent results The next phase is to produce a test pipe that allows the main stand to be kept and then to fit to a stock 350LC and road test them and get real feedback Once done, these pipes will be available as per the YPVS ones, approx 1 week from order to delivery
|
|
|
Post by jon on Jul 9, 2017 18:05:25 GMT 1
Dave, well done with your pipes.
Sure TSAs have a place in making maximum horsepower IF that's your 'bag'.
I deliberately asked Gibson's to make me a set of pipes that work well in YPM. This is restricted to 60HP, so people try and squeeze every BHP they can at lower revs to make the bikes faster out of corners.
I don't want to do 100MPH+ on my RD's so a pipe that gives better power lower down the rev range is perfect for me.
Saves excessive strain on the crank too by design rather than mechanical sympathy.
Jon
|
|
|
Post by sparx on Jul 9, 2017 18:53:17 GMT 1
Well said that man I have also been accused of having Kenny copies on my bike Which they certainly aren't
|
|
|
Post by yamark on Jul 9, 2017 19:11:59 GMT 1
Great work Dave, will you go into production for LC triples as well? I'm amazed at your turnaround on these pipes. I hope you are rewarded for all the hard work and R&D that you've done
Cheers, Mark
|
|
|
Post by muttsnuts on Jul 9, 2017 19:14:45 GMT 1
Dave, well done with your pipes. Sure TSAs have a place in making maximum horsepower IF that's your 'bag'. I deliberately asked Gibson's to make me a set of pipes that work well in YPM. This is restricted to 60HP, so people try and squeeze every BHP they can at lower revs to make the bikes faster out of corners. I don't want to do 100MPH+ on my RD's so a pipe that gives better power lower down the rev range is perfect for me. Saves excessive strain on the crank too by design rather than mechanical sympathy. Jon Hi Jon, yes I have targetted the mid range performance as most people/customers say to me that is what they want out of a pipe, they don't want to ride at 9k+ all the time, or be going up and down the gearbox all of the time to keep it in the power band, so we have tried to design these pipes to do that because of that feedback, the final test is when they are road tested and we get real feedback Best still, no jetting is required because of the design, so far I've not touched the test bikes fuelling at all, I will do some full testing on the first set of production pipes to see what/if anything needs tweaking, but my test bike is completely stock and is never adjusted or changed during or between tests, each test is done the exact same way, on the exact same stock settings and these pipes performed really well today The first set need a tweak at low rpm, in pilot/needle stage as its too rich, but the second set that does good mid range and good BHP needs nothing, the bike ran smoothly all the way up to max power And of course, they are designed so that we aren't killing cranks every 5 mins, especially since an engine rebuild these days is very expensive !
|
|
|
Post by muttsnuts on Jul 9, 2017 19:18:52 GMT 1
Great work Dave, will you go into production for LC triples as well? I'm amazed at your turnaround on these pipes. I hope you are rewarded for all the hard work and R&D that you've done
Cheers, Mark Hi Mark, the hard work is down to Jim and Dom who have made and designed them with input from me, but yes of course having the dyno helps loads. The turnaround is simply because they are very good fabricators and crack on with stuff and its what I said was probably the biggest number one gripe about exhausts, the waiting time, so all exhausts once proven have a jig made so that each exhaust is the exact same as the original one made and also has the same fit, so the hard work is all up front, after that, its a case of making the templates and welding them up on the jig, clearly the skills are still needed to do all of that and they do custom exhausts as per my previous post, so if your stuck, give me a shout I am sure they will be able to sort you out
|
|
|
Post by botty on Jul 9, 2017 19:19:58 GMT 1
TSA do a midrange pipe too.. Which pipe was the TSA Dave?? Just curious.
|
|
|
Post by muttsnuts on Jul 9, 2017 19:23:28 GMT 1
only set I had, which are peaky pipes I think, but I have tested mid range ones in the past and they didn't do what these do, but in fairness I'd need a set of mid range TSA's to check and validate, but I've had bikes in with them on and none have got close to this mid range, however, if somebody has a set and are willing to loan them to me to fit onto the test bike, I'd be happy to do so, I'd only need the pipes for an hour, so if anybody is close by and want to test them, feel free to contact me - the more data the better is my moto !
|
|
|
Post by midlifecrisisrd on Jul 9, 2017 19:53:43 GMT 1
Nice grunty graph there
Kenny makes 3 types of pipe
The ones you have tested look like his race pipe (Abbey design) which peaked about 10200 (had a pair on my n2/r vj22 hybrid
His most common was the road pipe which peak at 9600 (the ones on my 385)
And finally a midrange pipe
If you can do a midrange and the pipe you had in the ypvs test then you are laughing mate
Steve
|
|
|
Post by muttsnuts on Jul 9, 2017 20:01:15 GMT 1
yep, on with that at the moment, a really grunty YPVS mid range pipe using the same design technique we have done with the LC ones, will keep you guys posted
|
|
|
Post by Mr Kipling on Jul 9, 2017 20:32:46 GMT 1
well done that man , Keep up the great work... I second Steve,s post , Fat midrange ypvs pipes be nice..
|
|
|
Post by dusty350 on Jul 9, 2017 22:06:19 GMT 1
Well done Dave They look like a great pipe, and as said, that turn around time is awesome I'm sure you'll shift loads ! Dusty
|
|
|
Post by 17again on Jul 10, 2017 8:02:20 GMT 1
do you have a dyno for stock pipes v yours?
|
|
|
Post by arrow on Jul 10, 2017 9:55:13 GMT 1
Excellent work Dave, well done.
|
|
|
Post by markhoopy on Jul 10, 2017 11:12:10 GMT 1
That's a fine spread of peak power from Kenny's pipes!
|
|
|
Post by paulsx on Jul 10, 2017 13:14:03 GMT 1
Its a great test and interesting to see how good the original allspeeds were considering how old the design is!!!
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jul 10, 2017 15:35:08 GMT 1
Quick query Dave, how much do you think the temperatures of the tests affected the performance of the pipes
Most of the red vs blue lines had a higher temperature for the red than the blue, some by up to 20F, can the results be normalised to account for the temp differences
Or is this negligible?
|
|
|
Post by muttsnuts on Jul 10, 2017 16:57:54 GMT 1
Quick query Dave, how much do you think the temperatures of the tests affected the performance of the pipes Most of the red vs blue lines had a higher temperature for the red than the blue, some by up to 20F, can the results be normalised to account for the temp differences Or is this negligible? Hi, yes it does have an effect and on a colder more dense air day they do/will make more power, I reckon the 20F is worth about 1bhp, possibly abit more, but the software and weather station on the dyno does take some of this into account, but of course what it can't do is make the air contain more oxygen which is were more power is gained on a colder day I do intend testing the first production pipe shortly and I'll aim to do it early one morning when its coolder to try and make the comparison as accurate as possible, of course, the best option would be to retest the Allspeeds and TSA's at the same time, unfortunately I don't have access to any to do that, so have to use the data from previous runs, but they are all done on the same bike which has not been changed from stock
|
|
|
Post by muttsnuts on Jul 10, 2017 17:01:43 GMT 1
do you have a dyno for stock pipes v yours? I do, but I am hoping to do a back to back test with the first production pipes, I am trying to line up a stock 350LC to try the new pipes on, so run it on the dyno stock, then swap the pipes, re-run and then road test straight afterwards, that way it will be the best test I could possibly hope to do I'll post that test up and some photo's of the pipes as soon as that is done
|
|
|
Post by 17again on Jul 10, 2017 18:49:19 GMT 1
thanks
i will be interested for my f1
|
|
davej
L plate rider.
Posts: 45
|
Post by davej on Jul 15, 2017 15:04:41 GMT 1
cant wait ....my 350 is crying out for them
|
|
|
Post by dusty350 on Jul 15, 2017 18:57:08 GMT 1
Hi Dave Saw your pipes at Brands today, on Yogi and Carl's bikes. They look great, and sound awesome I especially liked the small cans on Carls pipes - 150mm long ally versions. They would look good on my TSA's being a bit shorter. Do you sell them separately to your pipes ? Great job on the pipes mate - they seem great value Dusty
|
|
|
Post by 0h5h1t on Jul 15, 2017 22:19:38 GMT 1
Hey Dusty, good to see you today and appreciate your kind words on the special. I didn't even recognise straight away. Muts does supply the cans separate to the pipes so I'm sure he can sort you out.
|
|
|
Post by dusty350 on Jul 16, 2017 8:15:31 GMT 1
Hi Carl, Credit where it's due mate, the bike looks fantastic and the seat, always hard to get right when you change from standard, looks like Yamaha designed it to go on the bike - really well done Your pipes look and sound so good, and those shorter cans would look really good on my Tsa's as the standard cans on them are a little bit long imo. And the sound really reminded me of bean can Microns from back in the day, which I reckon were the best sounding pipes ever !! Enjoy your bike mate Dusty
|
|
|
Post by 0h5h1t on Jul 16, 2017 21:16:04 GMT 1
Thanks Dusty, I'm humbled. I still have a few issues to deal with and a couple of changes to make but it is almost finished. (Are we truly ever finished though I as myself lol). The pipes though, all credit has to go to Muts, Dom and Jim who designed developed and persevered to make what I believe is an awesome pipe. And the bonus for me is, they suit my bike and give it a bit of attitude. I really like the splayed silencer angles from the rear of the bike.
|
|
|
Post by muttsnuts on Aug 22, 2017 19:46:56 GMT 1
right, got the final test pipes in the basic design, some testing to do and a road test then we should be good to go, so I'll get some results up and real feedback after a test ride plus some photo's of what they will look like in the next week or so........ watch this space
|
|
|
Post by seanclarky on Aug 22, 2017 20:18:41 GMT 1
Great work Dave
|
|
|
Post by lcyoungboy on Aug 25, 2017 12:58:27 GMT 1
Great work indeed dave 👍
|
|
|
Post by muttsnuts on Sept 5, 2017 19:49:05 GMT 1
ok, been quiet due to being mega busy, got abit of tweaking to do to get these pipes singing, once I've sorted that I'll get some results and photo's out there for you guys
|
|
|
Post by muttsnuts on Sept 6, 2017 9:14:18 GMT 1
did some testing last night and they are looking very promising, just some fuelling to sort out at 4.5k as its too rich, then I'll publish the results for the mid range pipe, but looks very good so far, will also take some photo's of the prototypes on the bike, they look awesome !
|
|