headers n such? .. hm..

by **shocar4** » Wed Jan 02, 2008 11:43 am

yeah i probably will at some point also...just not at the top of my list right now!

by **shocar4** » Wed Jan 02, 2008 12:07 pm

from the looks of the ebay site that jeff added in the 1st post here, it appears that the front header has an o2 bung and the rear is on the y-pipe just below where the header and y-pipe meet .....correct me if i am wrong!

by **Dawgz** » Wed Jan 02, 2008 12:46 pm

^ yes, that looks like a port for the o2 sensor.

Good eye.

But the thing is, if anyone gets a set of these, NO BODY should use that ypipe, its as bad as the OEM (stock) one.

by **shocar4** » Wed Jan 02, 2008 12:49 pm

Dawgz wrote:^ yes, that looks like a port for the o2 sensor.

Good eye.

But the thing is, if anyone gets a set of these, NO BODY should use that ypipe, its as bad as the OEM (stock) one.

yep i agree, just have an o2 bung put on a custom y-pipe and wahlah!!

by **Dawgz** » Wed Jan 02, 2008 2:52 pm

^u actually have room on the header itself.

by **shocar4** » Wed Jan 02, 2008 3:02 pm

i emailed them to see if we could just buy the headers and they said no that it comes as a package deal! haha that blows!

by **CamryOnBronze** » Wed Jan 02, 2008 3:08 pm

^ its already cheap as dirt...

I really dont think they are even worth what they charge for them- there is no way quality or gains are going to be very good with such a cheap product. It seems that if you were going to do headers youd save a lot of time and headache to just do it right in the first place, but thats my opinion. I know JP's setup is overpriced, but these are extremely underpriced- I really find it hard to believe that these are a quality product.

by **Jakecallun20** » Wed Jan 02, 2008 3:17 pm

I agree with everyone on the Y-pipe, that looks horrible. Setup is completely wrong. That actually may be worse than the OEM. I wouldn't really know I haven't taken mine out.

by **Midias** » Wed Jan 02, 2008 4:34 pm

Jakecallun20 wrote:I agree with everyone on the Y-pipe, that looks horrible. Setup is completely wrong. That actually may be worse than the OEM. I wouldn't really know I haven't taken mine out.

It is bad but not worse than OEM

by **Jakecallun20** » Wed Jan 02, 2008 4:45 pm

Midias wrote:
Jakecallun20 wrote:I agree with everyone on the Y-pipe, that looks horrible. Setup is completely wrong. That actually may be worse than the OEM. I wouldn't really know I haven't taken mine out.

It is bad but not worse than OEM

Oh. Good to know. I don't know what the OEM Y-pipe is like, but that Y-pipe looks extremely restricting with real bad flow.

by **PXLpainter** » Wed Jan 02, 2008 4:49 pm

Actually, that Y-pipe IS WORSE than OEM. As Phreak might chime in here about fluid dynamics... dumping exhaust in from the side like that doesn't allow the flow to be even between front/rear cylinder banks. Even a pinched OEM Y-pipe is better than one with a hole in the side like that!

by **PhreakdOut** » Wed Jan 02, 2008 7:17 pm

The welds look good from what I can see. They are TIG welds and not MIG. TIG is better for the AISI304 that they are using but it is a slower process, thus more expensive. The welds end up clean as hell. You can automate TIG in a rotary setup or with robotics, but again, it's expensive for the aftermarket.

My guess is that these are made in China or Taiwan. (Not that that is a bad thing in all cases.) One of our Taiwanese suppliers was top notch quality with their TIG welds and material quality. The prices were unGodly low and they claimed to be making good money. (I made even better money!)

The down side is that TIG welds must be done by someone who can control quality. Poor penetration or burn through pin holes are always a problem with wrong speed or temperature. So depending on the company, these headers may be a gem or a piece of crap.

The Y-pipe design looks like it was created by a monkey who excels in flinging his feces at humans. All the work they did in equal length runners in the headers was shot to hell by the "shortcut" taken in the Y-joint.

1st, I suspect the Y pipe diameter is too large for what we are using it for. Too large means loss of bottom end power. The engine is not putting out enough flow mass for these diameters on the 1st and 2nd legs.

The support rod is cheap. (Not a big deal) Add one more small bent rod welded to that one to for a triangle like brace and you may reduce the chance of resonance droaning.

The flanges look cheap as hell too. (Possibly 6mm?) Toyota uses 9mm for flat flanges on pass cars. 12mm on Tundra and 2mm thick formed ridge fineblank flanges for spring bolt joints. There's no recess for the ring gasket on the flange so leakage is probably common. They probably recommend a flat gasket here which is not as good.

Fit is critical. There's no room for error here so the company's quality is on the line. For Toyota, it's no problem. For aftermarket suppliers, they don't feel the pressure for tight tolerances. Since the manifolds are hard connection to the block, the outlet flanges must be in perfect position. (On a 3-D plane) The flanges on the Y-pipe are in hard location between each other. (This is the same situation on the factory pipe.) If the flange is slightly out of rotation, on angle or the leg is slightly bent wrong, you will have a knuckle-busting time putting it in.

O2 bungs are easy to find on the internet. You will want 300 series stainless steel. (No exceptions) Powdered Metal is OK and is probably cheaper. The bung material should be compatible with the mating pipe for differential of expansion at the welds.

I'd like to hear Sienna's comments on his experience with this. It would help give some idea on the true quality of the parts.

(BTW - moving this thread to Gen 1 aftermarket)

by **CamryOnBronze** » Wed Jan 02, 2008 8:22 pm

^ a lot of good information there!

I know bigbird bought similar (if not the same) headers for his gen 3 camry over on toyota nation and the fitment was terrible- they had to be modified to fit. Not saying they would be that way for the solara, but makes you wonder...

by **Jakecallun20** » Wed Jan 02, 2008 8:57 pm

CamryOnBronze wrote:^ a lot of good information there!

I know bigbird bought similar (if not the same) headers for his gen 3 camry over on toyota nation and the fitment was terrible- they had to be modified to fit. Not saying they would be that way for the solara, but makes you wonder...

Yeah, I can believe that. Personally I wouldn't trust any kind of eBay "performance part". Kinda like those "eBay special" exhaust systems made for Hondas that put off that horrible noise.

by **Dawgz** » Wed Jan 02, 2008 9:42 pm

like midias said, those headers + the Dats ypipe, would be good.

Which is what i plan to do!

headers n such? .. hm..

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