FT-86 SpeedFactory Catted UEL Header

[Tylub]

Umm... So i think I'm the first to have the welds crack on my header? :/
started hearing an exhaust leak that was really annoying that progressively got worse in the past month. Went under the car and bam. Sad boy todayyy

[chas3wba0]

Damn it, Bad Luck Brian T_T

Which weld... got pics?

Originally Posted by Tylub

Umm... So i think I'm the first to have the welds crack on my header? :/
started hearing an exhaust leak that was really annoying that progressively got worse in the past month. Went under the car and bam. Sad boy todayyy

[tahdizzle]

Sorry if this is gonna offend anyone, but the entire situation with ft86 and these headers rub me the wrong way.

I want to get it on a dyno.

[SCharged]

Originally Posted by tahdizzle

Sorry if this is gonna offend anyone, but the entire situation with ft86 and these headers rub me the wrong way.

I want to get it on a dyno.

I sure hope no one ever gets offended with what they read on this forum.. and especially that your asking a legit question... FT86SF have provided some answers on that front if your talking new design vs old design.. basically saying it was 3d scanned and is identical.

Lets just hope the weld failure is an isolated case... any detail to the wear its seen?? lot of tracking maybe? still not an excuse, but more flex would certainly put more strain on the headers.. what other parts is it combined with?

[tahdizzle]

Originally Posted by SCharged

I sure hope no one ever gets offended with what they read on this forum.. and especially that your asking a legit question... FT86SF have provided some answers on that front if your talking new design vs old design.. basically saying it was 3d scanned and is identical.

Lets just hope the weld failure is an isolated case... any detail to the wear its seen?? lot of tracking maybe? still not an excuse, but more flex would certainly put more strain on the headers.. what other parts is it combined with?

3d scan will show that its identical in dimension, but not in air flow and harmonics.

I still don't believe going from a weld to a bend didn't change those factors.

[SCharged]

Originally Posted by tahdizzle

3d scan will show that its identical in dimension, but not in air flow and resonance.

I still don't believe going from a weld to a bend didn't change those factors.

Maybe so, I dont know much about 3d scanning. but if dimensions are the same at all point of a 3d model and materials are unchanged... interior of piping should also be identical.

[tahdizzle]

Originally Posted by SCharged

Maybe so, I dont know much about 3d scanning. but if dimensions are the same at all point of a 3d model and materials are unchanged... interior of piping should also be identical.

Materials have changed, or at least the amount, density and location of materials.

[Trettiosjuan]

Originally Posted by tahdizzle

3d scan will show that its identical in dimension, but not in air flow and harmonics.

I still don't believe going from a weld to a bend didn't change those factors.

With all those welds on the original, how come you trusted so much more that every header produced before the change were identical for flow with all those pipe joints?

Originally Posted by SCharged

... interior of piping should also be identical.

As I understand it, bends are identical, there are just less welds on the straight parts. If anything, less welds means less pipe joints where the flow can vary and thus better (more consistent) quality for us, the customer.

Until proven otherwise, or, until even remote actual indications exist that performance has changed, I think it is safe to exhale and.... relax

[tahdizzle]

Originally Posted by Trettiosjuan

With all those welds on the original, how come you trusted so much more that every header produced before the change were identical for flow with all those pipe joints?



As I understand it, bends are identical, there are just less welds on the straight parts. If anything, less welds means less pipe joints where the flow can vary and thus better (more consistent) quality for us, the customer.

Until proven otherwise, or, until even remote actual indications exist that performance has changed, I think it is safe to exhale and.... relax

So you agree that the flow can be different? and you are assuming that it is an improvement.

The entire reason I chose an ft86 UEL header was ability to remove the torque dip w/o a tune.

That being said. There has not been any data showing information on the new headers; from FT86 or a 3rd party.

I did give them the benefit of the doubt, but after installing the header I am not convinced it has the same graph.

That being said. when I originally purchased the header, I did so based on the information given.


When a retailer shows you data on a product and you purchase the product based on that data. Then the seller changes the product and assures you that its the same product w/o any data to reinforce their claims. It is due diligence to be skeptical.

I don't have the blind faith you have.

[Trettiosjuan]

Originally Posted by tahdizzle

So you agree that the flow can be different? and you are assuming that it is an improvement.

Not in that way. For every pipe joint, there can be a minimal variance in flow. Remember, variance includes a perfect joint, as if no weld was there.
So original product = More joints = wider variance between each header delivered.

Modified product = Less joints = less variance between each header delivered = better quality

What I am saying is that if you trusted the original product offering, you can also trust the modified one. Trust me, I'm an engineer

[Tylub]

Originally Posted by chas3wba0

Damn it, Bad Luck Brian T_T

Which weld... got pics?

here you go

[tahdizzle]

Originally Posted by Trettiosjuan

Not in that way. For every pipe joint, there can be a minimal variance in flow. Remember, variance includes a perfect joint, as if no weld was there.
So original product = More joints = wider variance between each header delivered.

Modified product = Less joints = less variance between each header delivered = better quality

What I am saying is that if you trusted the original product offering, you can also trust the modified one. Trust me, I'm an engineer

I am not speaking about build quality...

Air flow and harmonics are affected. So is it reasonable to say the dyno graph has changed since the new design?

The only way to be sure is to get a dyno graph of the installed header. Which I will have to do. I really don't want to put it on a dyno because I don't trust that it has the same graph as what I was sold. But it definetly feels like the graph has changed.

[chas3wba0]

Originally Posted by Tylub

here you go

Ooooh that's nasty... Hope ft86sf takes care of you man.

[husker741]

Originally Posted by Tylub

here you go

Well that's what their warranty is for!