FlameThrowingRotary

What kinda power would you make with this. Just wondering, seems like if it's "ok" might be good enough to hold me off until I get the turbo kit I really want lol. http://cgi.ebay.com/ebaymotors/ws/eB...category=33742

RX-7-8593

Looks like a good deal. But wheres the down pipe? I guess you could fab up your own but that would kinda defeat the purpose of it being a kit.

FlameThrowingRotary

it looks liek it has a start of a down pipe and then you gotta weld the rest on by fabing one up to the midpipe

modrx7

iTrader: (1)

that this is for the wastegate....

The Kit is a piece of crap and will fall apart and not work

Don't buy it

oakridgerx7

im getting my downpipe from davinci motorworks, their old turbo kits used the ssautochrome manifold, so they still have the jig. for the price, i figured id give it a try. even if i have to rework the manifold, and rebuild the turbo, i should be able to do something with it.

moremazda

iTrader: (4)

Even with the buy it now price @ $750, it's a good purchase for just the turbo and the waste gate.

oakridgerx7

well, a lot of people on this forum like to say the turbo and wastegate are ****, but no one has actually used one. I will be putting my kit on soon, so i will let everyone know how it goes. if it really, really sucks, i will be the first one to tell everyone.

FlameThrowingRotary

Keep me posted!

RETed

Wow, I didn't know this was a good price to kill your engine...


-Ted

Zero R

iTrader: (1)

What if I tell you I do this for a living and after seeing it come in my shop I wont put it on. Very poor quality certain things you shouldn't go cheap on. Like maybe the device that controls the level of boost, so as to not risk over boosting.

teamafx

iTrader: (4)

Also there is a local 7 owner that I know that has used this wastegate and it leaked extremely bad under all conditions. This isnt a 7 owner who doesnt know what hes doing either.

cewrx7r1

iTrader: (2)

Doesn't the turbo say XSPOWER on it?

See the thread about how it is glued and tack welded together under :

https://www.rx7club.com/single-turbo-rx-7s-23/ssautochrome-turbos-suck-check-381473/

Poweraxel

In my opinion.. if you throw on ebay performance parts such as these turbo kits your car will actually decrease in value.

vintagespeed

Since you've ACTUALLY seen this kit, and say the wastegate is crap, what SPECIFICALLY is crap about it? I've heard all the generic statements about them but I'd like to know (from a pro's opinion) exactly what makes the wastegate (and the turbo) ****?

And as for the comments about the compressor housing being 'glued' together, you can't tack weld CAST aluminum, it wont glue very well either (it's porous). It will crack if the compressor side bearing fails however, which may be what happened to that one. The poster never replied back with how it failed. So all the kids here that say that's what the problem was are knuckleheads. I like real information not just bashing & bullshit.

-jb

kuroi FD

i have hear that the wastegates get stuck closed and boom! and the manifolds flanges are warped or do warp.

moremazda

iTrader: (4)

If I am not mistaken most single turbo rotories fall victim to bad tuning not a good deal on a 60-1 and a 50mm waste gate.

RETed

I dunno what you're fishing for, but you're jumping topics like you're on drugs.
I never brought up anything about what blows up motors more.
The topic is the quality of this particular wastegate, which is particular to this thread.
I made my position clear - this piece-of-**** wastegate which is an unauthorized copy of an HKS unit has been proven to seize and cause uncontrolled boost.
If you didn't know, uncontrolled boost will kill engines.


-Ted

kenn_chan

OK I can answer the question on the wastegate. Just installed one last week on one of my raceing buddies GTST skyline while his Blitz got rebuilt, first installed, wastgate stuck partially open (open wastegate) and you could here it bleeding to the atmosphere. I advised him to remove it, he didn't. next day, it was overboosting and stuck in that exact position. i removed it, broke it apart, and set the valve itself it up in a machine lathe. hit it with a dial gauge, and it was wobbling .007 out of true, and it casued it to jam in its bore. wheather it was like that to start, or warped after the first startup i have no clue, he bought it new unused off of a member of a forum hes on in the states, this guy got it as a part of a complete kit, but used his own wastegate. I looked at the diaphram, and the general quality and honestly felt it just wasn't there. (BTW .007 is a lot of slop for something like this, my Blitz is less than .0005 ((the limit of my dial gauge))

ken

cewrx7r1

iTrader: (2)

You are wrong on both points. Cast aluminum can be tack welded. And the more porous a material is, the better it will glue together because it allows more surface area for adhersion.

vintagespeed

Wow, yet another "I have heard" reply. Thanks for the truely eye-opening information.

-jb

vintagespeed

Any moron that's going to weld CAST aluminum is a jackass. When you heat a casting by welding it cracks as it cools because you're trying to "weld" two differnet types of metal.

Porous metals are not good to glue to kid, the pores suck up the adhesive and pull it away from the joint area.

Are you high or something?

-jb

vintagespeed

Finally something worth reading, thank you Ken. Is the metal valveshaft made of a softer alloy or is it just warped by poor assembly?

As for the whole "knock-off" crap, how many of you buy discount drugs at the pharmacy? Those are knock-offs too and people use them all the time

The reason I'm so curious about all this is because I used to work for a guitar company that everyone bitched about and said was a "knock off". The FACT was that we BUILT all the brands that everyone praised (we were the manufacturer and they were just renamed Fender, Ibanez, Alvarez, Gibson Epi & etc.) and ours were just as good if not better in some ways. I have the feeling that these turbo components may be the same thing.

-jb

oakridgerx7

well, i have noticed that a lot of people have been buying these turbo kits off of e bay, so maybe we can all give some feedback on how these kits work. i will be getting mine on in a few weeks, so i will keep everyone posted.

rotorbrain

as far as the leaking wastegate deal. . . that looks a lot like the hks 50mm wastegate, and im sure its simply a replica of it. my hks wastegate leaked. . . YES, OMG!!!! A BRAND NEW QUALITY HKS WASTEGATE LEAKED!!!!!!! the problem was simple. the upper cap (aluminum cup on top of the diaphragm. . . is that spelled right???) is, for some reason, expected to seal itself with the four bolts at the base, the manifold source nipple, and the adjusting screw. the problem lies in the adjusting screw. why in the world machine threads are meant to seal properly i will never know. all you have to do is put an o-ring in there. leaky wastegate problem solved.

and about welding cast aluminum. . . i work on NUMEROUS intake manifolds that have been welded on. . . nipples removed, material added for modification. . . blah, blah, blah. . . for some reason, i have YET to see one crack or any leak for that matter. . . hmmmm. . . guess im the jackass you speak of.

paul

FC3S.USD

iTrader: (2)

just read away

http://92civic.tripod.com/