Single Turbo RX-7's Questions about all aspects of single turbo setups.

HKS style 50mm wastegate

Old Jun 29, 2005 | 01:39 AM
  #1  
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HKS style 50mm wastegate

Just want to know if anyone has purchased one of these

TAKE A LOOK.

http://cgi.ebay.com/ebaymotors/ws/eB...RK%3AMEWA%3AIT
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Old Jun 29, 2005 | 05:56 PM
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I bought one and the machining was a little sloppy. It didn't fit up to the HKS manifold and the casting looked to be poor quality. I decided to put it on the shelf and buy a Tial instead. Mine had "Nitto" cast into the main housing so these might be different.

-Trent
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Old Jun 29, 2005 | 06:45 PM
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i have been thinking of getting one for my new setup. Im scared tho... of everything i can deal with failing.. the WG is not one.
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Old Jun 29, 2005 | 10:07 PM
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I bought one, should be here any day. My buddy bi=ought one, which we dis-assembled, it was identical to the HKS racing gate we had there that day. There are two different auctions, the one you listed, and one with 5 springs, and a dump tube. The latter is 175.00. They are possible to buy at the starting bid price. I know one on a supra that succesfully regulates down to 6 psi on a T78, and one that is keeping a 42R at bat at 8psi. The only documented failure I can find is a DSM guy, looks like he put a bolt through the diaphragm. We shall see, the springs are not identified, and seem to all be roughly the same rate. You need to play with it CAREFULLY, until you know what boost it will hit on your set-up, then work with springs, and your EBC from there. I'd say if you know what you are doing, and approach them with caution, they are A good deal, but if you believe they will hold say 7 psi as advertised, and you can only support 7 psi you will be buying a new motor. Carl
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Old Jun 29, 2005 | 10:29 PM
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i searched for a manifold... i wanted a t4 divided one. Was going to be like $500+ so i got the FD one for $99. With the money left over im going to get the welds fixed and get it Jet hot 2000 coated by a local place.

With welding and coating and all i should have less than the price of a hks undivided log.

maybe it wont last for 8 years.. but it should last for two or three at least after i beef it up.

So i need to choose a WG.... and they are hella loot!! i didnt know they cost so much. 600 for a real hks 50mm. So i think im gonna get the same 50mm hks style one.

when you get yours in the mail let me know how it looks.

We need to make a thread of all the people actually running the ssautochrome stuff... and how well it holds up.
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Old Jun 29, 2005 | 10:43 PM
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Oh gawd, here we go again...


-Ted
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Old Jun 29, 2005 | 11:30 PM
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Originally Posted by RETed
Oh gawd, here we go again...


-Ted
If it works.... then whats the problem. some guy somewhere... on some honda forums had a problem with one? i guess that means thay all must be crap.

Last edited by sleeperfc; Jun 29, 2005 at 11:47 PM.
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Old Jun 29, 2005 | 11:34 PM
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RETed,
If you don`t have anything good to say keep it to yourself.

As for the other members Carl Byck and TrentO, I really appreciate your input. I have been looking for a nice wastegate but decided not to spend all that crazy money like I`ve done before. The last 50,mm wastegate I purchased was a innovate motorsports indy gate and it was just under 600.00. which put a real dampener in my pocket.


I think that I`ll just take my chances and see what happen while using it with a Electronic Boost Controller...(profec-b)


Any more input will be greatly appreciated.


Thanks again,
Andre
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Old Jun 30, 2005 | 12:59 AM
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Originally Posted by sleeperfc
If it works.... then whats the problem. some guy somewhere... on some honda forums had a problem with one? i guess that means thay all must be crap.
I hope you guys are not the type who bitch and moan about why the U.S. economy is going to **** cause jobs and manufacturing are getting outsourced overseas.

Go take a class on international economics to understand the consequences of you getting cheap...


-Ted
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Old Jun 30, 2005 | 01:01 AM
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Originally Posted by andre sinclair
RETed,
If you don`t have anything good to say keep it to yourself.
You know what...you know where you can shove this where the sun don't shine...

See above post.

This is why companies like SSR go out of business.
If you keep doing this, companies like HKS will go out of business.
There will be no innovation - only companies who do no R&D and rip other companies intellectual properties off...


-Ted
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Old Jun 30, 2005 | 01:05 AM
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I can't believe anyone would cheap out on a wastegate. If it fails, your engine is most likely toast before you can let off. A Tial wastegate is under $400.

While there is some debate about how long SS Autochrome manifolds hold up, even the SS Auto manifold supporters think their turbos and wastegates are ****. There are numerous tales of these things failing.

If you can't afford a PROPER wastegate, then maybe you shouldn't be modding the car....
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Old Jun 30, 2005 | 09:27 AM
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I just got the 50mm kit from them for 175. On first inspections everything fit on my hks cast manifold like a champ except the dump tube holes didn't line up correctly. I emailed them and I am waiting for their responce so see if maybe they sent me the wrong dump tube. Anyways if this is infact not made by the same supplier as the HKS model I would be very suprised. Yes this a knock off from Asia but it appears to be a exact replica. The same wastegate from a HKS dealer was very pricey. I have a serious doubts that this wastegate was infact produced by the same comapany that hks contracts out to build these. And honestly this is a mechanical device. If it fails it would fail because the spring is no good or some other inspectable reason it would not perform. But for the price I think its worth testing and troubleshooting. Worst case is it sticks shut and blows the motor. If you are worried about blowing a rotary when you are trying to get twice and three times the horsepower out of it then you shouldn't own one. It has nothing to do with money.
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Old Jun 30, 2005 | 12:14 PM
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Originally Posted by Bukwild
Anyways if this is infact not made by the same supplier as the HKS model I would be very suprised. Yes this a knock off from Asia but it appears to be a exact replica. The same wastegate from a HKS dealer was very pricey. I have a serious doubts that this wastegate was infact produced by the same comapany that hks contracts out to build these. And honestly this is a mechanical device. If it fails it would fail because the spring is no good or some other inspectable reason it would not perform.
Wrong.
Machining tolerances are not always visible to the naked eye.
If it's off by a few "thou", it will either seize on your or shake itself to death.

But for the price I think its worth testing and troubleshooting. Worst case is it sticks shut and blows the motor. If you are worried about blowing a rotary when you are trying to get twice and three times the horsepower out of it then you shouldn't own one. It has nothing to do with money.
I find it ironic you claim it has "nothing to do with money", but yet you think it's "worth it".
It's your coin, and you're welcome to do whatever you want to do with it, but making such claims as above is just absurd.

Unless you have absolute proof your claims are fact, please stop spreading falsehoods that can cause grief for other potential buyers.


-Ted
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Old Jun 30, 2005 | 12:56 PM
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"I find it ironic you claim it has "nothing to do with money", but yet you think it's "worth it".
It's your coin, and you're welcome to do whatever you want to do with it, but making such claims as above is just absurd.
Unless you have absolute proof your claims are fact, please stop spreading falsehoods that can cause grief for other potential buyers."

It does not have to do with the money with me. I just don't like to pay a inflated price for HKS so they can pay for all the Drift events around the world along with magazine advertisements and all that expensive crap. And I don't have proof of my claims that it is a exact copy of the HKS 50mm because I don't have one laying around. But if anyone in the MD area has one I will be more than happy to get together with them and get some exact meassurements. And yes I think paying $175 before I am forced to pay $550 on a gamble on this product is worth it to me. And what do we do if we measure this wastegate up to the HKS version and they are the same thing? Then what? Does that mean that this is now a approved wastegate from this forum? I called and spoke to the guys at Stone mountain racing a while ago. And they seemed like pretty good guys. And we wouldn't even probably be having this conversation if someone on the DSM forum lied their *** of and said they were shipped a turbo front cover which was glued together which later was found out to be a farse. These guys lost so much buisness over that post that they had to change their company name. Thats fucked up. I decided to give these guys a shot and like I stated before all that appears to be wrong is the dump tube flange doesn't line up with the 4 bolts. Nothing that can't be fixed with a dremel.
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Old Jun 30, 2005 | 01:47 PM
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Originally Posted by rynberg
I can't believe anyone would cheap out on a wastegate. If it fails, your engine is most likely toast before you can let off. A Tial wastegate is under $400.

While there is some debate about how long SS Autochrome manifolds hold up, even the SS Auto manifold supporters think their turbos and wastegates are ****. There are numerous tales of these things failing.

If you can't afford a PROPER wastegate, then maybe you shouldn't be modding the car....

Im in total agreement with rynberg. I understand saving money where you can. Hell i have an SS auto chrome T78 manifold, BUT on something MAJOR like that i would go with something you can rest easy with. Some people have gotten them to work which is cool, but do you have the cash to back it up if things go wrong??
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Old Jun 30, 2005 | 01:58 PM
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"Im in total agreement with rynberg. I understand saving money where you can. Hell i have an SS auto chrome T78 manifold, BUT on something MAJOR like that i would go with something you can rest easy with. Some people have gotten them to work which is cool, but do you have the cash to back it up if things go wrong??"

Yeah I have the cash to buy another if it for some reason does not work right out of the box or on the dyno/steet tuning. Mostly I am doing this because these guys have caught a bad wrap over some kid saying he bought a turbo from them and it was glued together. A guy tried to post the same pic on this forum saying he bought it. So yes their is alot of BS going around about this product and I was in the market for a new one anyway and the worst thing is we can find out in a few weeks that it sticks shut and its because of some poor knock off design. I have yet to see a forum member here post that they own this item and it didn't work and why.
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Old Jun 30, 2005 | 05:18 PM
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Originally Posted by rynberg
I can't believe anyone would cheap out on a wastegate. If it fails, your engine is most likely toast before you can let off. A Tial wastegate is under $400.

While there is some debate about how long SS Autochrome manifolds hold up, even the SS Auto manifold supporters think their turbos and wastegates are ****. There are numerous tales of these things failing.

If you can't afford a PROPER wastegate, then maybe you shouldn't be modding the car....
A spring loaded valve, a diaphragm, and a spring. If it is beyond you, or someone else to troublshoot that, then what are you doing on a tech forum. There is one documented case out of thousands of wastegates sold. It is a torn diaphragm on the DSM forum. Upon checking the photos, ther is no sign of fatigue, just a tear in a diaphragm, that looks like the guy tried to put a bolt through it. I scanned through thousands of feedback responses, and did not find ONE reference to a failed WG. The reason you would buy this item from them is because there is almost nothing simpler than a WG. At 175.00 it is still overpriced for what is. As I said before, if my WG sticks, I am tuned to 30 psi, running 111 octane and 11.5 plugs, I can handle that transient boost easily, not to mention the money I save can go to a Pop Off valve(if I care to) which will protect me in the event of an EBC malfunction, a popped off WG line, a stuck valve, etc. Tial does not make a 50mm WG, and I have found 40-44 mm WGs to be just barely large enough. Anyone who can show me why an HKS racing WG costs 650.00 step right up. For that matter, for those of you not wanting to skimp, I have two HKS standards that retail for 550.00, I'll sell them for the screamin deal of only 400.00 each, what a deal for genuine HKS product LOL . Anyway, what external Wastegates have you tried? What external wastegates have you dis-assembled, and compared? What WGs have you seen fail, or read about failing (link please)? How many moving parts are there on an HKS WG? Class dismissed, join Teddy at the back of the line...
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Old Jun 30, 2005 | 09:55 PM
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Originally Posted by Bukwild
And what do we do if we measure this wastegate up to the HKS version and they are the same thing? Then what? Does that mean that this is now a approved wastegate from this forum?
No.
Next I would insist on a metallurgical analysis of the metals used in the production unit.
This is all basic Machining 101 stuff.


I called and spoke to the guys at Stone mountain racing a while ago. And they seemed like pretty good guys. And we wouldn't even probably be having this conversation if someone on the DSM forum lied their *** of and said they were shipped a turbo front cover which was glued together which later was found out to be a farse. These guys lost so much buisness over that post that they had to change their company name. Thats fucked up. I decided to give these guys a shot and like I stated before all that appears to be wrong is the dump tube flange doesn't line up with the 4 bolts. Nothing that can't be fixed with a dremel.
I dunno who "Stone mountaing racing" is so I dunno what it has to do with the thread...


-Ted
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Old Jun 30, 2005 | 10:00 PM
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Originally Posted by Carl Byck
At 175.00 it is still overpriced for what is.
For an owner who has spent literally tens of thousands of dollars, I can't believe what I'm hearing from you.

Sure, if we're talking about the actual machining costs of producing the unit, it's not close to the $175 price.

BUT...

What about R&D costs?
HKS invests MILLIONS of dollars to produce their products.
How much do these knock-off artists spend? Just enough to pay one college grad to disassemble and reverse engineer one HKS wastegate.
What about the investment in tooling, machining, and equipment?
Hmmm...I guess HKS does not have any of that laying around... :P

Man, I dunno if you ever took a class in economics, but you're missing the point by a mile.
The retail price is just not the sole arguing point of the whole mess.



-Ted
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Old Jun 30, 2005 | 10:50 PM
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whats the big deal. ITs your money, its your car, you decide what you spend your money on. I had a real hks wastegate which I baught from a local guy. It was $350. Then before I even had the engine together, my boy comes by with one of these wastegates. When I say that these are identical inside/out, I mean it. Except for the brand name "HKS" imprinted on it, there was no difference. I immediately sold the wastegate on ebay, and baught this one. I have had no issues with it, except some boost creep. If you have a standalone, overboost precautions are easy. After 15psi it goess to full rich.
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Old Jun 30, 2005 | 11:49 PM
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Ted, knock-offs are the real world today, some are good for the economy, some are bad. Didn't you buy an EBay FMIC? FMICs are simple radiators, it does not cost millions in R&D to design one, or to route the piping(if it did would be a millionare ) Anyway, charging ~1500.00 for a small tube and fin core, and a poorly routed pipe set up is what HKS does, do you support or agree with such gouging, or do you think one ought to be able to buy a quality Bar and Plate FMIC for 300.00? I think I know the answer Point is, this is not a device which requires a substantial amount of R&D, and since HKS was not the first to make one, I suppose they are knock off artists themselves, stealing the idea from some hapless inventor who figured out how to control boost. Anyway, this is silly, I won't pay 650.00 for something I can buy for 200.00. If you want to, it's your money, but so far, you have done the smart thing, and purchased a lower priced equal quality product in your new FMIC, I congratulate you on your prudent purchase Happy 4th, Carl
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Old Jun 30, 2005 | 11:52 PM
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BTW, I run a GTII HKS WG on my MKIV Supra, just for you Of course I bought it used for 400.00, not the 800.00 HKS charges.
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Old Jul 1, 2005 | 12:14 AM
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Originally Posted by Bukwild
Yeah I have the cash to buy another if it for some reason does not work right out of the box or on the dyno/steet tuning. Mostly I am doing this because these guys have caught a bad wrap over some kid saying he bought a turbo from them and it was glued together. A guy tried to post the same pic on this forum saying he bought it. So yes their is alot of BS going around about this product and I was in the market for a new one anyway and the worst thing is we can find out in a few weeks that it sticks shut and its because of some poor knock off design. I have yet to see a forum member here post that they own this item and it didn't work and why.
Right...i agree that there is tons of BS flying around, and if you can save money great. My point was not about replacing the Wastegate, but if it sticks when you at WOT and it pops your engine and damages your turbo. But then again whose to say it wont happen on an HKS or "brand" name either. It would be nice for someone to try one out and actually see if and how long it works for.
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Old Jul 1, 2005 | 01:02 AM
  #24  
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I bolted one up tonight, I will report back Friday. It came with six different springs, a mounting flange, two gaskets, a dump tube, all bolts, and a flange to mount to the dump off the DP, 202.50 delivered. Carl
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Old Jul 1, 2005 | 03:24 AM
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Originally Posted by MARTIN
I have had no issues with it, except some boost creep.
I don't call that a functioning wastegate...

If you have a standalone, overboost precautions are easy. After 15psi it goess to full rich.
That's a band-aid solution to a really bad problem.


-Ted
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