http://spaturbousa.com/home//index.php?page=shop.product_details&flypage=shop.flypage&product_id=41&category_id=13&manufacturer_id=0&option=com_virtuemart&Itemid=60

Hmm . . . If I've just been in the dark, sorry for the repost.

cool find, now who sells them?

Would this be something more for dyno junkies?

Uhm, yes please. Where do I sign up.

still a 38mm wastegate flange :confused

ill pass


(need I remind you it seems to be closer to 35mm)

still a 38mm wastegate flange :confused

ill pass


(need I remind you it seems to be closer to 35mm)

Actually enlarging the drawing shows that the opening is 33mm... pass.

well, you can enlarge it. I extruded mine from 33mm to 39mm. There is easily room to go to 44-46mm.

bah, man up and run big boy boost and there will be no worries about small wastegate.:)

well, you can enlarge it. I extruded mine from 33mm to 39mm. There is easily room to go to 44-46mm.

Its 50mm bolt hole to bolt hole, a 46 ain't fitting there.

Why would the WG size on the manifold suddenly become an issue? It hasn't been in the past.

I have Zero Boost creep with my SPA manifold..

Mike, are you guys carrying these? Price?

Why would the WG size on the manifold suddenly become an issue? It hasn't been in the past.

Did you not see A32guys issues with a T4 GT3582R and a 44mm wastegate?

I have Zero Boost creep with my SPA manifold..

You run a T3

Did you not see A32guys issues with a T4 GT3582R and a 44mm wastegate?



I do not think it was ever proven that this was a wastegate size problem and not a manifold design problem.

There is another member running a BL manifold and a T4 35R and reporting no issues.

The way I see it, a T3 35R would need to bypass MORE exhaust energy around the turbine to hold compressor RPM lower than a better flowing T4 hotside?

I do not think it was ever proven that this was a wastegate size problem and not a manifold design problem.

There is another member running a BL manifold and a T4 35R and reporting no issues.

The way I see it, a T3 35R would need to bypass MORE exhaust energy around the turbine to hold compressor RPM lower than a better flowing T4 hotside?

I dunno there are plenty of people running that manifold - a ball bearing T4 should want to spool up better especially with only that small AR exhaust housing. Holding a T4 GT35R down at like 12 psi might prove difficult without a large wastegate.

cool find, now who sells them?

Jumped a link from an ebay listing for a T3 SPA manifold here to SPAturbousa.com here: http://cgi.ebay.com/ebaymotors/SPA-Turbo-BMW-M50-M50TU-M52-S50-S52-M54-T3-Manifold_W0QQcmdZViewItemQQ_trksidZp1742Q2em153Q2e l1262QQcategoryZ33742QQihZ019QQitemZ290222045415QQ tcZphoto

No T4 listed on their page though, nor is there any pricing on the SPA site so I assume it's the same $600.00 price as is the T3.

Would this be something more for dyno junkies?

Smallish wastegate fitment aside . . T4 60-1s / T61 / 67 / 70mm turbos . . very possible at least another option.

still a 38mm wastegate flange :confused

ill pass


(need I remind you it seems to be closer to 35mm)

Actually enlarging the drawing shows that the opening is 33mm... pass.

Open it up to 38 or 40mm, or even just run a 33 / 35mm flanged pipe from manifold to 38 / 40 or 44mm flange, attach wastegate? *Shrug*.

bah, man up and run big boy boost and there will be no worries about small wastegate.:)

Re-read, still confused :confused

Why would the WG size on the manifold suddenly become an issue? It hasn't been in the past.

Got me, personally I think people read a bit too much into wastegate sizing, example: Stock motor *Say . . S52 + MLS and studs, 35R, 10psi . . . 44mm wastegate . . . :confused* serves purpose, but still a bit un-unnecessary in my opinion.

I have Zero Boost creep with my SPA manifold..

Proper sized turbocharger does still play an integral role, but yeah . . I don't see outside of larger housings any dramatically terrible difference in flow w/ the T4 manifold.

Proper sized turbocharger does still play an integral role, but yeah . . I don't see outside of larger housings any dramatically terrible difference in flow w/ the T4 manifold.

I think that a T3 would be would be Easier to spool than the T4 with the same amount of exhaust pressure. So wouldn't the T3 be more prone to boost creep?

I think that a T3 would be would be Easier to spool than the T4 with the same amount of exhaust pressure. So wouldn't the T3 be more prone to boost creep?

Not necessarily, too many variables (Bushing / Ball bearing / 0.63 A/R - .82 / 1.02 / 1.06 / psi etc . . ). I'd like to see a 0.63 A/R T61 paired to this manifold say around 1 bar.

Jumped a link from an ebay listing for a T3 SPA manifold here to SPAturbousa.com here: http://cgi.ebay.com/ebaymotors/SPA-Turbo-BMW-M50-M50TU-M52-S50-S52-M54-T3-Manifold_W0QQcmdZViewItemQQ_trksidZp1742Q2em153Q2e l1262QQcategoryZ33742QQihZ019QQitemZ290222045415QQ tcZphoto


:rofl

That's the guy with the wastegate pipe hooked up EVERY way except the correct way. :rofl

Why would the WG size on the manifold suddenly become an issue? It hasn't been in the past.
Actually, I remember a few recently having issue with the port size. I ported the manifold I bought from you to 38mm and built my own piping. There was a guy who was getting rediculous creep for some reason, he ported it, rebuilt the piping, and ran a 44mm gate and the issue was resolved.

Moreboost356:

What jfdmas is saying...

The higher the flowing the turbo and the LOWER the WG boost you try to run, the more airflow that will be needed to bypass the turbo turbine and go out the wastegate to achieve LOW WG boost pressure.

Example:

3.0L liter motor running a 76mm compressor. This setup will require a LARGE WG with vast flow capabilities if the user wanted to run something retarded like 7PSI WG spring. If you take that same engine, but this time want to run a minimum of 24PSI out of it, then your WG flow requirements have just been drastically reduced. With this, more air is actually hitting the turbine, giving you more boost, and a smaller amount of air is bypassed via the wastegate.

Hope that helps.

Mike

Mike

There was a guy who

Which guy was that?

I have Zero Boost creep with my SPA manifold..

I get boost creep issues on my gt35r when I swap in my test pipe into my exhaust system. It creeps up to 17 psi and holds. With my cats on it will hold at 10 or 13psi with no problems...

I get boost creep issues on my gt35r when I swap in my test pipe into my exhaust system. It creeps up to 17 psi and holds. With my cats on it will hold at 10 or 13psi with no problems...

Is that on a SPA manifold or other?

Let me be the first to say, AW WTF.

I just spent $418 on a friggen exhaust housing. I would have loved to use the extra cash to try this out instead, and keep my T4 :(

Is that on a SPA manifold or other?

SPA

Let me be the first to say, AW WTF.

I just spent $418 on a friggen exhaust housing. I would have loved to use the extra cash to try this out instead, and keep my T4 :(

See below Chris

SPA

That sucks - so a straight pipe creeps it, predictably and routinely? Interesting.

I get boost creep issues on my gt35r when I swap in my test pipe into my exhaust system. It creeps up to 17 psi and holds. With my cats on it will hold at 10 or 13psi with no problems...

was this dumping the WG or routing it back into the exhaust?
If back into the exhaust, how was the return?

was this dumping the WG or routing it back into the exhaust?
If back into the exhaust, how was the return?

Routing back to exhaust.

Here's the best pic of the return that I have...

http://i38.photobucket.com/albums/e145/flipmodex21/Engine%20Prep%20and%20Install/IMG_3552.jpg

http://i38.photobucket.com/albums/e145/flipmodex21/Engine%20Prep%20and%20Install/IMG_3550.jpg


V-Band Cats: No creep issues w/ the straight pipe installed:

http://i38.photobucket.com/albums/e145/flipmodex21/Engine%20Prep%20and%20Install/IMG_3553.jpg

And yes the creep was very predictable when I run the straight-pipe setup.

say whatever you want, more than one person here (conservatively) has had problems with creep on a spa mani. running low boost on a t4 with that wastegate setup is asking for problems.