Got my S-TEC Manifold too!!

Discuss the RB20, RB25 and RB26 series engines.
S-tec Motorsports
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Sorry for the delay in response, but I could not remember my login for this site for nothing.

These manifolds are not designed for internally wastegated turbos. You will have problems trying to fit a square peg into a round hole.
I have done 1 or 2 internally wastegated setups by simply cutting off the excess metal on the turbo and patching it back up through welding.
I have used up to a 1.15a/r garrett housing t4 and it was still not touching the vavle cover
The only turbo that i have found that can cause problems is a older style t88 with the hump over exhaust housing style Its a HUGE housing and im not going to redesign it for a 20 year old turbo.
just a short list of turbos that these have been used with that had no problems
any to4e r s z that i have ever seen
holsets hx40 h1e
ebay t61 and to china whatever 4
gt40/42
you guys with the hx40W need to get ahold of goldfarb
11832 Coakley Circle
Rockville, MD 20852
Tel 301.770.4514
Fax 301.770.4517
Sorry if its breaking the rules or something by posting his #
I have bought ALOT of turbos from this guy the housing your looking for is 3533000#
They are commonly used on buses and crane equipment also some dozers. 58mm 19cm
They are cheap, used they are like 70$ or something. pretty much any of the housings i have seen that are not internally wastegated made by holset and are t4 flange fit fine.

If someone has a easy way to make the wastegate fit, let me know. Im not against change just will have to test it on cars here too.


julio
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S-tec Motorsports wrote:Sorry for the delay in response, but I could not remember my login for this site for nothing.

These manifolds are not designed for internally wastegated turbos. You will have problems trying to fit a square peg into a round hole.
I have done 1 or 2 internally wastegated setups by simply cutting off the excess metal on the turbo and patching it back up through welding.
I have used up to a 1.15a/r garrett housing t4 and it was still not touching the vavle cover
The only turbo that i have found that can cause problems is a older style t88 with the hump over exhaust housing style Its a HUGE housing and im not going to redesign it for a 20 year old turbo.
just a short list of turbos that these have been used with that had no problems
any to4e r s z that i have ever seen
holsets hx40 h1e
ebay t61 and to china whatever 4
gt40/42
you guys with the hx40W need to get ahold of goldfarb
11832 Coakley Circle
Rockville, MD 20852
Tel 301.770.4514
Fax 301.770.4517
Sorry if its breaking the rules or something by posting his #
I have bought ALOT of turbos from this guy the housing your looking for is 3533000#
They are commonly used on buses and crane equipment also some dozers. 58mm 19cm
They are cheap, used they are like 70$ or something. pretty much any of the housings i have seen that are not internally wastegated made by holset and are t4 flange fit fine.

If someone has a easy way to make the wastegate fit, let me know. Im not against change just will have to test it on cars here too.
My bad for saying that it won't fit. I didn't mean to suggest it was a bad product by any means. It's just that in his previous posts I saw he had an internally gated housing.

Cjmartz2k
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Hey meet, I tried replying to your PM but I think you still have them turned off. It said you couldn't receive PM's. Send me some pics. Nearest I can figure is emusa copied something wrong with the HX40 when they copied it. I'm sure you've seen the pics of my HX40 on mine. Bolted right on. s***, I just realized there's a pic in my sig :-) Hit me up with some pics when you get a chance.

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meet07
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Compressor housing touching the valve cover:
Image
straight edge on the flange:
Image
This little part of the turbine housing needs to be removed but even if it was the compressor housing will still touch the valve cover. The comp housing extends past the holes on the t4 flange.
Image
Side veiw:
Image
the obvious:
Image
...........
Image

RB24D
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Looks like their will be sone exstensive fabbing involved to make it work in your future.

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74260zt
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Is it possible to put a 26 valve cover on that side? Looks like they dip down in that area, which may help the comp housing clear.... ???
Last edited by 74260zt on Sun May 16, 2010 9:37 am, edited 1 time in total.

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meet07
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I'll probably be selling this manifold after Goldfarb call me on monday with a true holset price.

Cjmartz2k
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Wow, the compressor housing hit??? That blows my mind. They must have made them nothing like the real holsets. I think I paid $450 for a brand new hx52 from goldfarb BTW, so don't despair. They aren't that much. Every little bit hurts though, I know. You can get used ones for even cheaper from them. That's what I did for my and it worked out well. They aren't going to send you a turbo with a bunch of shaft play and not tell you about it. They give it a finger wobble test and their best guess on what kind of shape it's in. No guarantee, but I trust them when they tell me they have a used turbo with very little shaft play.

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meet07
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He told me that the holset hx40 turbo's he have(not internally wastegated) are about 2 inches shorter than the turbo I have. If thats true then the compressor housing would sit right underneath the valve cover. I Think im going in a diffrent direction now...

ps: My stock turbo isnt blown. I was having oil blow by. Pulling it right from the valve cover and through the turbo. Nothing wet on the exhaust side..yay

Cjmartz2k
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Eww, that's way more expensive than a blown turbo or changing a manifold. Sorry about the bad news there man. Maybe a busted ringland or something? Well, I guess now's a good a time as any to get a forged bottom end, eh? RB's just love to eat money, don't they?

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meet07
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Cjmartz2k wrote:Eww, that's way more expensive than a blown turbo or changing a manifold. Sorry about the bad news there man. Maybe a busted ringland or something? Well, I guess now's a good a time as any to get a forged bottom end, eh? RB's just love to eat money, don't they?
I was told that blow by was normal and that all I needed was a catch can....Ill do a comp test on her this week to double check the engines condition.

Ramius83
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Well, I just tried bolting up my Borg Warner S300SX 88/75 Turbo and the turbine and compressor housings hit the valve cover on my RB26. I do not know what I am going to do just yet. I am probably just going to hack off the flange and a little of the manifold and re-weld it at a slightly less lean to towards the engine. If the flange was more flat in relative to the ground and not tilted in, it would work fine. But nonetheless, it has to be done with this turbo......

S-tec Motorsports
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Sorry to hear the borg turbos dont fit. i will move the flange for the next batch. Since there is more than one turbo that is not 20 years old that wont fit.
When I used older t88 here is how i did it
used a chop saw with a 4mm wide cutting wheel cut from the outside of the manifold to the inside right at the flange
do not cut it all the way through, so it doesnt mess up the angles
bend it down to where the pipes touch the flange and tack it

I filled up the middle where all the pipes join with a mig, my tig was too big to fit in there just filled it until the pipes came apart enough to weld around them.
tigged the inside and all the way around the outside

worked fine, hope this helps. It gave about another half inch of clearance
dont cut too much as you will not be able to get a nut on the back outside flange bolt. dont ask me how i know that.....

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meet07
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Ramius: Now you know how i feel. I ordered anouther turbocharger and it should be her Saturday or Monday. I also bought anouther manifold. I would really like to use the S-Tec manifold but didn't plan on buying one of the best manifold on the market for the price and having to practically remodify it...........Im hoping that my new turbo will fit. If not I have worked out a deal with the local welder.

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Lonismos14
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Fo shizzle My nizzle. :bigthumb:

Seen the youtube video you show no mercy on your 25

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meet07
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UPDATE!!!!

I decided to order anouther turbocharger. I went with a copy cat gt35r with a .68 hot side. Its a little small for my taste(loving boost lag) but a freind of mine has this exact turbo on his mkIII supra with a 1j in her and she pulls nice. I still need to get the wastegate elbow fabbed up and the dp. I made a deal with the local welder and im trading my hx40 for the job plus cash....cant wait to drive her again. Here are the pics:

Image
Image
Image

Oh yeah ill be using the 50mm wastegate as well...Man she is gonna sound mean!!

Cjmartz2k
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Sweet man. Looks nice. Damn, those GT series are tiny external size wise compared to holsets. No problems with fitment on the mani now I see :bigthumb: I think you'll be happy with that turbo, especially on a much lighter 240sx compared to the Supra piggy.

R32GTR/Iceland
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Audi S4 Quattro 5cyl 2.2 Turbo "Daily"
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looking good ;)

im still trying to decide if i should try to use the s-tec, XS power vers 2 or the OBX one. On my R32 GT-R / RB26 , not sure if a GT4202 with a 1.15 a/r will clear everything with the s-tec manifold.

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meet07
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I doubt it b/c thats a pretty big turbo. But in the future when I upgrade to a t67 or a 76mm turbo ill do exactly like whats his name said and cut one side, tap it shut with a hammer and reweld it. I mean its hard to describe the quality of this manifold but its 3 times as heavy as my ebay manifold.

I cant wait to see it glow!!

S-tec Motorsports
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Its not the size that makes it fit or not, its how the exhaust housing is made. Its hard to make a manifold that fits every turbo out there there are thousands of different types, looks like its going to take me 2 attempts to do it, and I have ALOT of different turbos/engines at my disposal.
There is a guy that put a 42 on one of these without any problems. I think he is on GTR canada. Try to find him to find out which one he used, as I have no idea.
that s300 how much more clearence you need?
anyone wanting to used hx52's, you will need to change the flange completely.
mc motorsports sells the flanges.
cut 2.5cm from the top of the flange down just a little flatter. It will fit under a gtr hood that way, iffy on the tower bar though.
HX52 are GREAT turbos for 25s,allmost same response as a 40 with more balls. Looks huge too.

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meet07
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A dude tryed to trade me a holset hx50 yesterday for my 40....hmmmm I told him that I already got rid of it and that im close to finish with my project. Plus like you said its a t6 flange.

S-tec Motorsports: I need some more 2 inch piping that was used the make this manifold. I ordered some schedule 10 from the local Grainger and the schedule 10 looks really similar the sch 40. Where can I get some straights,90's and maybe even a 45??

Thanks

R32GTR/Iceland
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Audi S4 Quattro 5cyl 2.2 Turbo "Daily"
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S-tec Motorsports wrote:Its not the size that makes it fit or not, its how the exhaust housing is made. Its hard to make a manifold that fits every turbo out there there are thousands of different types, looks like its going to take me 2 attempts to do it, and I have ALOT of different turbos/engines at my disposal.
There is a guy that put a 42 on one of these without any problems. I think he is on GTR canada. Try to find him to find out which one he used, as I have no idea.
that s300 how much more clearence you need?
anyone wanting to used hx52's, you will need to change the flange completely.
mc motorsports sells the flanges.
cut 2.5cm from the top of the flange down just a little flatter. It will fit under a gtr hood that way, iffy on the tower bar though.
HX52 are GREAT turbos for 25s,allmost same response as a 40 with more balls. Looks huge too.
let me start by saying sry meet07 for hijacking your thread, but s-tec seems to have private messages disabled and i tried emailing also. This is what i tried to send as a private message on here. Hope you see it S-Tec Motorsports and send my an email maybe with a reply at [email protected]

hi there, i tried sending you an email asking about the S-tec manifold. I sent it to [email protected] , not sure if thats the right email to contact you

I was thinking about maybe using the s-tec manifold if its quality is better then the Xs Power and OBX manifold. I wanted to use a GT4202 with a 1.15 a/r but wasnt sure if it will clear everything in a R32 GTR with a RB26. I saw your reply in Meet07 thread about a guy in Canada that used a GT42 without problems. I´ll try and find him.


I live in Iceland so i was also trying to find how much the shipping would be ?

and i wanted to buy it with the wastegate aswell that is if it isnt just a regular ebay one that will fail like the one you can buy from xs power.
also what gaskets are included with the manifold+wastegate set, i saw in the manifold only pic there were exhaust gaskets etc. But in the Manifold+wastegate pic they are missing there.

thank you very much in advance
Ragnar from Iceland // [email protected]

mickr33
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I am also trying to get in contact with S-tec as i am very keen in purchasing one. I have sent a couple of inquiries through his web site two weeks ago, but still awating a response. If any people here actually go to the S-tec work shop or live near by could you please let him know that there are people that are wanting to buy his manifolds but cannot get in contact with him. Any help would be greatly appreciated. Thank's :dblthumb:

Cjmartz2k
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I'll stop by sometime this week and let him know. His secretary is japanese and a bit flakey.

mickr33
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Thanks for your help and quick response. :)

Cjmartz2k
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BTW, for everybody in the states, to dial the shop directly, it's 011-81-98-893-0192. That exactly what you dial. It's not as scary expensive as you think. My parents pay 8 cents a minute, but I don't know about everybody else's plan. Best time to get him in is Mon-Fri 1100-1700L, and I think we are about 13hrs ahead of EST right now with daylight savings. They don't do that here, so the amount of time difference changes when you guys do daylight savings.

mickr33
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Just spoke to scott about his manifold's and have ordered one through his web site. To ring him was the same area-country code as you stated Chris from down here in Australia. Also shipping was quite reasonable to. :wavey:

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74260zt
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SOLD
Last edited by 74260zt on Sat Jul 03, 2010 12:44 am, edited 2 times in total.

mickr33
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Thanks for the offer, but im actually after the side mount version.

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meet07
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I dropped my car off over the weekend at the local mandrel bending shop. I went buy and checked on the progress and the wastegate elbow has been fabbed up to place the 50mm wastegate in the engine bay. I guess he will be working on the DP tomm or wednsday. Im shooting for the weekend for start up with the Nistune and Lighting MAF blowthrough = )

Ill post pics up soon!!


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