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-   -   China 64mm TB knock-off (https://www.miataturbo.net/engine-performance-56/china-64mm-tb-knock-off-94579/)

concealer404 09-27-2017 09:49 AM

So my real question is: Do you feel that the cheap one is still "stronger" than the oem one in terms of the shaft breaking or not breaking?

bahurd 09-27-2017 10:44 AM


Originally Posted by concealer404 (Post 1442188)
So my real question is: Do you feel that the cheap one is still "stronger" than the oem one in terms of the shaft breaking or not breaking?

Good question. Don't know the OEM material [or the china or Skunk for that matter] so making an assumption they're all basically the same steel it comes down to shaft cross-section right?

I'll try and dig out an OEM one to compare later today.

ryansmoneypit 09-27-2017 01:45 PM

I just measured my stock 99-05 throttle body shaft. I am getting about .345 or 8.76 mm. So it looks like the cheapo and the skunk turd are all slightly larger in diameter. Again, no idea about the OEM material, or the others for that matter.

.one lane 09-28-2017 10:48 AM

I have to admit the shipping from China was pretty quick. I got mine yesterday, and I can tell you it looks like crap. As stated above, the finish is terrible, machine marks everywhere but the most annoying part is all the chips inside the threaded holes.

I'll be taking it apart and posting up my findings in a bit.

Here are some pictures.
https://imgur.com/a/WNuxC

I couldn't fully disassemble the throttle body, there's a gasket that's stuck inside the bore where the throttle plate shaft goes through, and the stupid spring is stuck.

From a super quick inspection, the throttle plate ranges from Ø64.47MM to Ø64.54MM, the shaft is steel, I just don't know if it's hardened (I have some hardness files around here somewhere.)

This appears to be the bearing: https://www.fastenal.com/products/details/4126357 from the part number

https://www.mcmaster.com/#standard-b...rings/=19lhx65

.one lane 09-29-2017 07:09 PM

2 Attachment(s)

Originally Posted by bahurd (Post 1441574)

3. Pulleys
The SKUNK2 pulley is a fully machined piece of aluminum whereby the China TB is a plastic pulley. I haven’t disassembled the China TB to look at the internals where the pulley connects to the shaft but I expect the aluminum machined version is a lot stronger. Also, spring pressure seems the same although I haven’t checked with a guage.


https://cimg1.ibsrv.net/gimg/www.mia...67226e85e4.jpg

4. Butterfly shaft
Here’s where the 2 products differ significantly.

Cross shaft Ø:
SKUNK2 10.88
China TB 9.71

Across shaft flats:
SKUNK2 6.8
China TB 6.8

My Junk2 throttle cable cam thingy is made out of aluminum, which can be seen here.

Attachment 229739

Here are the dimensions I got from my shaft.

Attachment 229740

ryansmoneypit 09-29-2017 07:16 PM

I question how strong the pulley really needs to be. Nylon will probably outlast my car.

Savington 09-29-2017 11:01 PM

Proof enough that it's a cheap copy, not the real thing at less cost. Hard pass.

Roda 10-21-2017 12:58 PM


Originally Posted by Savington (Post 1442975)
Proof enough that it's a cheap copy, not the real thing at less cost. Hard pass.

QFT

And a heads up: some really good prices on the genuine Junk2 99-05 TB on Amazon right now.

ShaZam508 11-15-2017 06:39 PM

Ordered one of these E-Gay throttle bodies and it came in black!?

https://cimg6.ibsrv.net/gimg/www.mia...2677f9666e.jpg

concealer404 11-15-2017 06:43 PM

Well i want that.

ShaZam508 11-15-2017 06:51 PM


Originally Posted by concealer404 (Post 1451932)
Well i want that.

It never gave me a color option so watch out, You might get a pink one!

ridethecliche 11-15-2017 08:09 PM

Linky?

ShaZam508 11-15-2017 08:19 PM


Originally Posted by ridethecliche (Post 1451936)
Linky?

This is the link to the listing I bought it from.

https://www.ebay.com/itm/322629216054

ShaZam508 11-15-2017 09:38 PM

So they forgot to send me this bolt... 👎

https://cimg7.ibsrv.net/gimg/www.mia...7642f93cf2.jpg

psyber_0ptix 11-16-2017 07:58 AM

M6x1.0 button socket head. Probably shallow thread length.

ryansmoneypit 11-16-2017 08:02 AM

I got mine the other day- took 7 weeks and at one time was thought to be lost. Anyhoo, it looks pretty good. A little different than the others, machine marks were acceptable and the throttle cam is aluminum not plastic. The throttle shaft also measures about 10.5 mm in dia. Raw aluminum it looks like. I did not see any color options at the time either. Trade me for that black one?

ShaZam508 11-16-2017 02:25 PM


Originally Posted by ryansmoneypit (Post 1451990)
I got mine the other day- took 7 weeks and at one time was thought to be lost. Anyhoo, it looks pretty good. A little different than the others, machine marks were acceptable and the throttle cam is aluminum not plastic. The throttle shaft also measures about 10.5 mm in dia. Raw aluminum it looks like. I did not see any color options at the time either. Trade me for that black one?

Thanks for the offer but I dont mind the black.

Word of advise to anyone who hasn't installed theirs yet. Bring your idle control valve with you when you go get the button head screws. They only supply one screw and the other will need a slightly longer one than whats on the factory TB. Also the supplied TB to manifold gasket is cut wrong.

ryansmoneypit 11-16-2017 02:47 PM


Originally Posted by ShaZam508 (Post 1452045)
Thanks for the offer but I dont mind the black.

Word of advise to anyone who hasn't installed theirs yet. Bring your idle control valve with you when you go get the button head screws. They only supply one screw and the other will need a slightly longer one than whats on the factory TB. Also the supplied TB to manifold gasket is cut wrong.

is your throttle cam plastic or aluminum?

ShaZam508 11-16-2017 08:50 PM


Originally Posted by ryansmoneypit (Post 1452057)
is your throttle cam plastic or aluminum?

It's aluminum.

mr.skywalker 12-05-2017 04:01 PM

I am thinking about ording one of these and was curious about the one that came in black. Idk if this was around when you ordered yours but they officially offer them in black now

https://www.ebay.com/itm/New-64mm-Th...paGP3N&vxp=mtr


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