C21 or C30 guys?
- Thread starter FUracing8
- Start date
tiba_karotsu
OVERREV TUNING
as you stated in the other thread if the customer insists on the c30 then give him what he wants & then compare it against the c21 you can borrow a used one from a friend right? lets put an end to the c21 vs c30 fiasco to see which is better, if i was there i'll let you borrow mine just to settle the matter once for all.
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Information
We are Yasuni dealers. The factory has stated that a C21 & a C30 have the same dyno read outs. The only (2) things that are difference is that the C30's neck (front part of the exhaust) is hand welded to give it the works look. It is not rolled and of course it price. Other than that, the factory states that they are the same. This is why we only stock the C21.
Speed
We are Yasuni dealers. The factory has stated that a C21 & a C30 have the same dyno read outs. The only (2) things that are difference is that the C30's neck (front part of the exhaust) is hand welded to give it the works look. It is not rolled and of course it price. Other than that, the factory states that they are the same. This is why we only stock the C21.
Speed
tiba_karotsu
OVERREV TUNING
Myth: C30 is better than C21
Reason: C30 is more expensive
is the myth true? as Speed said coming from the horses' mouth (Yasuni factory) they are the same only different header finish (more cones, more welds, more money & effort to make = more expensive) so why pay more for the same pipe under a different guise?
now it's clear to me thank you Speed for your explanation, myth busted!
Reason: C30 is more expensive
is the myth true? as Speed said coming from the horses' mouth (Yasuni factory) they are the same only different header finish (more cones, more welds, more money & effort to make = more expensive) so why pay more for the same pipe under a different guise?
now it's clear to me thank you Speed for your explanation, myth busted!
tiba_karotsu said:Myth: C30 is better than C21
Reason: C30 is more expensive
is the myth true? as Speed said coming from the horses' mouth (Yasuni factory) they are the same only different header finish (more cones, more welds, more money & effort to make = more expensive) so why pay more for the same pipe under a different guise?
now it's clear to me thank you Speed for your explanation, myth busted!
Yes in my opinion ther are only little differences, the expansion chambers are the same. The stainless steel silencer connection (with CNC-cutted spring holder), the riveted kevlar silencer with a thin sheetmetal, and the smoother header, they are only little changes I don't think it C30 worth it!!
M.O.P. said:if you want that bit more power with the C30 youll have to pay for it
If you read the topic you can understand what we are talk about!! There is no (or very minimal) performance difference between the c21 c30! The more money what you pay for the C30 doesn't give you extra performance! You pay for a little different design I don't think it wort that money!! For example the C30's silencer costs 70 euro more than the C21's silencer! Etc..
FUracing8
FUracing8
Thank you Browni....and I was only looking for some varifiable information Neo....something I could show the customer on paper to show them there is very little difference. I'd still like to see it, just to know for myself. Also, if I wanted to make a little extra change, I'd buy the C21 and charge him for the C30!!! HEHEHE!!! No, I'm not gonna do that. The guy is cool, and I've rinsed him enough for the other parts he's bought. Thank-you for the information gentlemen. Appreciated as always.
EatMyDust
Well-Known Member
Why do you talk so bad about the c30 if you didn't tryed?
I have bought both exhausts and tested with a tuned hebo manston 4 and i can feel the diferences, on all powerband,higher rpm's achieved, yasuni c30 it's a little bit shorter because of the small header, the stinger it's bigger, and if you see the exhausts side by side, you can see the diferences of the cone angles...on my country (portugal), i never seen a dyno for motorcycles, so i can't give you dynographs, but if you search a little on this forum you can find dynograph's like i did, before i buy the c30 i've made a little search to ensure that c30 was better than c21... And it sure is...
http://forum.scooterforum.net/forum/showthread.php?t=98325&page=4&pp=30&highlight=yasuni+c30
click on it to see the graph's
oh, and sorry for my bad english
cheers
I have bought both exhausts and tested with a tuned hebo manston 4 and i can feel the diferences, on all powerband,higher rpm's achieved, yasuni c30 it's a little bit shorter because of the small header, the stinger it's bigger, and if you see the exhausts side by side, you can see the diferences of the cone angles...on my country (portugal), i never seen a dyno for motorcycles, so i can't give you dynographs, but if you search a little on this forum you can find dynograph's like i did, before i buy the c30 i've made a little search to ensure that c30 was better than c21... And it sure is...
http://forum.scooterforum.net/forum/showthread.php?t=98325&page=4&pp=30&highlight=yasuni+c30
click on it to see the graph's
oh, and sorry for my bad english
cheers
tiba_karotsu
OVERREV TUNING
that pipe looks like an MK PR2 (version2) exhaust doesn't it?
FUracing8
FUracing8
Yeah Browni, that's definately a Yasuni. I thought it was the newer model PR2 with a yasuni silencer also Spasta, but the bracket is way back there, a yasuni trademark. Also, it actually looks like the expansion chamber is made from 2 peices and the rear peice turned down instead of up. After a couple of e-mails the tech support person told me it's only available for factory team racers and they are handmade for just that purpose. (now is that a fuckin bummer or what???? not fair dammit! anyone wanna go visit their race shop at 4AM with me?)
Hello
Yes. that's my boy Osaca Checa #1. His shit is off the hook, boss. We race against him in Spain in the Catalana F1 Scooter Championship. His scooter is a Beta Ark and it is a ROCKET. This is a Yasuni Exhaust System. It is a custom made Yasuni exhaust for the engine specs that the Beta Scooter team uses. It is not sold to the Public.
Yasuni is a very small factory. I have been told by the distributor that it is actually (1) person that makes these pipes, so he can only do so much and with the high demand that he has for the Yasuni Product. He told me that the Yamaha GP 125cc Team, I do believe he said Yamaha, pay 4,000.00 Euros for (1) pipe.
Yasuni keeps the company small so the quality is good. To have a custom made exhaust, it will cost a great deal of money & then how many units will you buy. Only the elite persons will get this service. If you go to (www.fcm.net) and see Oscar's track record for the amount of years he has Won the Catalona Championship you would see that he would be a good spondser for Yasuni. The Beta Team all use this Model Yasuni Exhaust for about the last (3 - 4) years. They use to use another simular brand that is sold in Sain. I will check my pictures to find out the name of it.
Note: Were did you find this picture, Awesome.
Speed
Yes. that's my boy Osaca Checa #1. His shit is off the hook, boss. We race against him in Spain in the Catalana F1 Scooter Championship. His scooter is a Beta Ark and it is a ROCKET. This is a Yasuni Exhaust System. It is a custom made Yasuni exhaust for the engine specs that the Beta Scooter team uses. It is not sold to the Public.
Yasuni is a very small factory. I have been told by the distributor that it is actually (1) person that makes these pipes, so he can only do so much and with the high demand that he has for the Yasuni Product. He told me that the Yamaha GP 125cc Team, I do believe he said Yamaha, pay 4,000.00 Euros for (1) pipe.
Yasuni keeps the company small so the quality is good. To have a custom made exhaust, it will cost a great deal of money & then how many units will you buy. Only the elite persons will get this service. If you go to (www.fcm.net) and see Oscar's track record for the amount of years he has Won the Catalona Championship you would see that he would be a good spondser for Yasuni. The Beta Team all use this Model Yasuni Exhaust for about the last (3 - 4) years. They use to use another simular brand that is sold in Sain. I will check my pictures to find out the name of it.
Note: Were did you find this picture, Awesome.
Speed
Speed said:
I look at the this pipe on the picture, and this is quite od for track use they are short enough for high revolution, but with quite wide powerband, the expansion chamber has small volume, the diameter is small, and has a quite low degrees cones, so it has a good overreving characteristic..
The picture is from the yasuni page, there are two other pictures too:
