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I used Swain Tech in new York for my SBC headers. Great stuff but not cheap.
Anyone here regret installing an x pipe due to sound alone? I've belabored this decision. Don't want raspy or junkie sounding for my 1985 daily driver.
I used Swain Tech in new York for my SBC headers. Great stuff but not cheap.
Anyone here regret installing an x pipe due to sound alone? I've belabored this decision. Don't want raspy or junkie sounding for my 1985 daily driver.
I don’t think Swain white TBC can be used to coat the insides of headers. Outsides, sure. And it’s great stuff, not cheap though. A lot of Swain white parts on the turbo car.
I think (but don’t know) that the X pipe sound mostly depends on the pipe diameters and what mufflers and resonators there are after the crossover. Short H and X themselves don’t really sound that different.
I had one that needed a spot weld as one of the flanges had a pinhole leak.
These pipes are handmade so some variances in MFG can be expected,
they do have an assembly fixture for fabrication.
Originally Posted by ptuomov
It would be good practice to pressure test every welded exhaust component and check it for fitment by bolting it onto a fixture before it leaves to the customer. Noticed that John’s pretty **** about those practices.
Originally Posted by 95carrera
I learned that lesson the hard way too. Always test fit before sending off for coating. Coating for my headers was three times cost of part.
The design is pretty well done, I think, but QC could be improved. Mine came like this, but rather go through the trouble of round-trip shipping to correct the problem, I just rewelded them myself. Fit was good, though.
As far as sound goes, I asked Roger what he thought about it, and he said not to worry, no drone, pleasant amount of noise, which is exactly what I found. Mine is temporarily installed without cats (budget), but that will be corrected sometime this winter, the sound may change slightly then.
I don’t think Swain white TBC can be used to coat the insides of headers. Outsides, sure. And it’s great stuff, not cheap though. A lot of Swain white parts on the turbo car.
My brother in law owns a trucking company, among other businesses. The claims on that site about diesel truck engines are incredible.
Fireball XMC Coating Improves Fuel Economy
A long haul transport truck with a 12L 6 cylinder 465 hp diesel engine achieved an overall average 11.0% increase in fuel economy over 4 months. The improvement in fuel economy is statistically significant at the 99.5% confidence level
Since fuel consumption varies with the weight hauled, if load weight is taken into account the fuel economy increase averages 14.5%, 9.5% at 8,000 lbs, up to 18.7% at 40,000 lbs.
His company is hauling loads that are always right at the legal limit using Volvo trucks. Volvo and the truckers would give their left ********* to get 2% fuel consumption reduction, let alone near 20% reduction.
I didn’t know that a coating that would last inside a gasoline powered exhaust header existed. The only thing I know that would last there is plasma sprayed coating and getting the rotating nozzle thingy inside an exhaust manifold seems impossible.
mine purchased from Motorsport Utah still has the white coating,
the company that did this was Jet Hot coatings,
they paint the inside and out side of the pipes it wont burn off.
Adamant, has this issue been resolved? I am getting close to ordering one of these, and I am very interested in the outcome.
Not yet, but my plan is to try with a spacer on one side to bring it in to the centre. If I did not have the ceramic coating I would use a come along and just bend the outlet pipes in a bit. Apparently I'm not the only one to have issue as they are basically hand made, so in some cases adjustments are needed. But this is my first x-pipe that did not fit.
Jet Hot coatings,
they paint the inside and out side of the pipes it wont burn off.
Give it time, I'm removing the headers from my 79 because the jet hot coating is gone and needs to be recovered. This time I'm going with Swain Tech, not just for the headers but the complete exhaust.
I installed an X-pipe on my 89 a couple of weeks ago per Stan's recommendation, and it fit perfectly. Exhaust systems are IMO, consumables, even my Packard, and Cord exhaust systems are considered replaceable. Jethot coating, won't last forever, and I think it's a waste of money.
It will require a much larger spacer than I had thought. I'm getting a gap of 14mm to 15.3mm across the passenger flange. With each gasket measuring 2mm I will need to fabricate a spacer that slopes from 10mm to 11.3mm, if I'm going to get an even crush on the gaskets. Unless I can source a gasket that is thicker or if two OEM gaskets are able to compensate for the difference in gap with a flat 11mm spacer.
It will require a much larger spacer than I had thought. I'm getting a gap of 14mm to 15.3mm across the passenger flange. With each gasket measuring 2mm I will need to fabricate a spacer that slopes from 10mm to 11.3mm, if I'm going to get an even crush on the gaskets. Unless I can source a gasket that is thicker or if two OEM gaskets are able to compensate for the difference in gap with a flat 11mm spacer.
In this picture, the welds are unacceptable! That is justification in and of itself to reject and send the X-pipe back! Those welds exhibit " CRATERING" and FISHEYED, this is unacceptable! Plus the pipe is what we call stitch welded. That's also unacceptable!
For the record, I'm a certified welder, with every cert, in every process. I'm also a certified welding inspector, and instructor. I teach at the Vocational Collage Level.
You need to send that POS, back! You could go to Midas, and get better welds, and fit than that POS, with a wire welder, and a HS student.
In this picture, the welds are unacceptable! That is justification in and of itself to reject and send the X-pipe back! Those welds exhibit " CRATERING" and cratering is unacceptable! Plus the pipe is what we call stitch welded. That's also unacceptable!
For the record, I'm a certified welder, with every cert, in every process. I'm also a certified welding inspector, and instructor. I teach at the Vocational Collage Level.
You need to send that POS, back!
I'm no welding expert and they looked odd to me as well.
11-19-2017, 03:07 PM
