2015 viper headers

[seano700]

I understand that the 2015 viper headers are beefed up considerably from 2014 (buddy at tech school relayed this). I was told 2014 was a hard year on the stock headers, especially when turbocharged.. Any ideas how the updated headers will last? I'm trying to rationalize the evo header upgrade.

Tks in advance. Sean

 

[NM]

I understand that the 2015 viper headers are beefed up considerably from 2014 (buddy at tech school relayed this). I was told 2014 was a hard year on the stock headers, especially when turbocharged.. Any ideas how the updated headers will last? I'm trying to rationalize the evo header upgrade.

Tks in advance. Sean

Price the stock header. You could probably buy 2 for the price of an aftermarket header. Takes 1/2 hour to change one.
Just an FYI. A properly fuelled turbo doesn't seem to break headers.

The 15 headers are better for sure.

 

[Shred4Ever]

Contact EVO... They have a very nice header!!

 

[BigFish BC]

I understand that the 2015 viper headers are beefed up considerably from 2014 (buddy at tech school relayed this). I was told 2014 was a hard year on the stock headers, especially when turbocharged.. Any ideas how the updated headers will last? I'm trying to rationalize the evo header upgrade.

Tks in advance. Sean

i would ride it till it breaks then upgrade,but the new header is a fair bit beefier so should be fine.

 

[JustBoostIt]

The Evo headers will be in transit to me this week. Aside from better construction there is also significant hp gains so you aren't just buying it for strength.

 

[NM]

We had this header on the snow 2 seasons ago before we could even buy a Viper or a stock Viper header, and it works good, but IMO doesn't work any better than the stock header.

 

[seano700]

thanks guys.
The 2015 headers retail from yammi around 500.00 this year, the evo one is in at 800.00..

I will mull it over some more! Thanks again for your comments

Sean

 

[JustBoostIt]

I'm pretty excited about using the Evo header with the reflash and exhaust, but we will also be using them a lot on the billet wheel ball bearing kits.

 

[stingray719]

We had this header on the snow 2 seasons ago before we could even buy a Viper or a stock Viper header, and it works good, but IMO doesn't work any better than the stock header.

I would agree on stock pipe. EVO pipe though has different sized tubes and are longer. It does produce more power...enough that the drag Viper this pipe is on was hitting the rev limiter after install. That being said is it enough power to justify $800.00? That only you can answer. Now the reflash to raise the rev limiter and a couple other changes to the ECU that goes with this pipe to make 30hp I am def interested in.

The other point is the only Viper pipe that I saw pics of that broke separated on a cold weld, and I only know of that one pipe so I wouldn't hit the panic alarm yet on the pipes being bad.

 

[M5-]

Maybe I'll get slaughtered here, likely but here goes.

That header design is the reason I have no interest in the Viper. I can't possibly see how a design that clearly evolved from:

"Hey how about we phone up Cat and just jam the Nytro motor into a Cat chassis and see how that goes".
"But what about the exhaust?"
"No problem we can just make it do a 180 and put all the weight up front, no one will even notice"
"We will just let the aftermarket guys solve all the problems with turbos"

By the time the exhaust does the 180 and gets to turbo it has easily encountered as much resistance and travelled as far as a Nytro straight thru system on a rear mount which incidentally balances the sled perfectly, I'm sorry if your supercharged Nytro was a front heavy POS but I told you so 5 years ago. When doing a forced air heating system in a home a single 90 degree bend creates as much resistance as a 10 foot run of straight pipe.

I really don't see the draw of this sled, sorry. I've been running Cat geometry skids in my Nytros since 2008, everyone said I was nuts now that the Yamacat is out everyone says how great they handle, well duh.

My MCX turbo Nytro is sub 600 and my Nypex is 610 RTR, the Viper isn't even an improvement in weight really and it has a crappy exhaust design.

JMO

Maybe the Viper will bring about world peace.LOL

M5

 

[seano700]

Maybe I'll get slaughtered here, likely but here goes.

That header design is the reason I have no interest in the Viper. I can't possibly see how a design that clearly evolved from:

"Hey how about we phone up Cat and just jam the Nytro motor into a Cat chassis and see how that goes".
"But what about the exhaust?"
"No problem we can just make it do a 180 and put all the weight up front, no one will even notice"
"We will just let the aftermarket guys solve all the problems with turbos"

By the time the exhaust does the 180 and gets to turbo it has easily encountered as much resistance and travelled as far as a Nytro straight thru system on a rear mount which incidentally balances the sled perfectly, I'm sorry if your supercharged Nytro was a front heavy POS but I told you so 5 years ago. When doing a forced air heating system in a home a single 90 degree bend creates as much resistance as a 10 foot run of straight pipe.

I really don't see the draw of this sled, sorry. I've been running Cat geometry skids in my Nytros since 2008, everyone said I was nuts now that the Yamacat is out everyone says how great they handle, well duh.

My MCX turbo Nytro is sub 600 and my Nypex is 610 RTR, the Viper isn't even an improvement in weight really and it has a crappy exhaust design.

JMO

Maybe the Viper will bring about world peace.LOL

M5

I was at my local dealer the other day when he had a viper mtx sitting beside a carry over Nytro in the showroom. I was surprised when I picked up the back ends one after the other.. Advantage Nytro for sure. I'm a little worried about busting a nut when my vipers full of fuel stuck! Sure is a big shift in weight with the gas tank under the seat, and an additional couple gallons of fuel.

Sean

 

[M5-]

I've built a lot of Yamaha sleds, front mounts, rear mounts, mid mounts and NA sleds. The single best improvement I've felt/made on any Yamaha sled was to use a Rev tank on my Rx1. That one mod changed the handling of that sled dramatically. Kudos to the Doo engineers for that one, they had and still have balance figured out. I don't see the same level of thought/planning in the Viper, witness the header, at best its a factory mod sled. When Yamaha brought out the Nytro it was a clean sheet of paper all be it with it's issues but still, this new sled is a retrofit, it's just not the final answer and hopefully its not their best effort.

Again JMO


M5

 

[yamahajohnson220]

I was at my local dealer the other day when he had a viper mtx sitting beside a carry over Nytro in the showroom. I was surprised when I picked up the back ends one after the other.. Advantage Nytro for sure. I'm a little worried about busting a nut when my vipers full of fuel stuck! Sure is a big shift in weight with the gas tank under the seat, and an additional couple gallons of fuel.

Sean

Go back to your dealer and pick up the front ends and report your thoughts. I think you will be surprised.

 

[stingray719]

Maybe I'll get slaughtered here, likely but here goes.

That header design is the reason I have no interest in the Viper. I can't possibly see how a design that clearly evolved from:

"Hey how about we phone up Cat and just jam the Nytro motor into a Cat chassis and see how that goes".
"But what about the exhaust?"
"No problem we can just make it do a 180 and put all the weight up front, no one will even notice"
"We will just let the aftermarket guys solve all the problems with turbos"

By the time the exhaust does the 180 and gets to turbo it has easily encountered as much resistance and travelled as far as a Nytro straight thru system on a rear mount which incidentally balances the sled perfectly, I'm sorry if your supercharged Nytro was a front heavy POS but I told you so 5 years ago. When doing a forced air heating system in a home a single 90 degree bend creates as much resistance as a 10 foot run of straight pipe.

I really don't see the draw of this sled, sorry. I've been running Cat geometry skids in my Nytros since 2008, everyone said I was nuts now that the Yamacat is out everyone says how great they handle, well duh.

My MCX turbo Nytro is sub 600 and my Nypex is 610 RTR, the Viper isn't even an improvement in weight really and it has a crappy exhaust design.

JMO

Maybe the Viper will bring about world peace.LOL

M5

We are going to have to disagree. Back when I built headers for stock cars bends that had the proper gradient and were the same size did not impede flow enough to measure. Now if you are talking 90 degree turn that is not radiused yes those drop flow substantially.

If you believe any Nytro can handle like the SR Viper please go ride one.

 

[stingray719]

Go back to your dealer and pick up the front ends and report your thoughts. I think you will be surprised.

I like challenging guys to do that in the parking lots.....it is fun to see the look on there faces. One guy insisted I pull the side panel as he did not believe it had a 4stroke in it.

 

[christopher]

Anyone know if their (evops) headers are compatible with their turbo kit?

 

[BigFish BC]

yes justboostit said they will be running them on there turbo kits.

 

[RACINSTATION]

Anyone know if their (evops) headers are compatible with their turbo kit?

Yes it is compatible.

 

[seano700]

The evo header lands in the stock location with the same flanged connection yamaha uses. If your turbo uses the stock header the evo header will work too. So I'm told anyway

 

[christopher]

The evo header lands in the stock location with the same flanged connection yamaha uses. If your turbo uses the stock header the evo header will work too. So I'm told anyway

Excellent.
Thanks guys.