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Wastegate control line for Tial wastegate

 
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bureau13  



Joined: 07 Sep 2017
Posts: 232
Location: South Florida

PostPosted: Wed Feb 05, 2020 11:54 am    Post subject: Wastegate control line for Tial wastegate Reply with quote

I was able to acquire a used Tial F46 for less than the price of a new diaphragm for my stock wastegate, so as soon as I get the time, I will be swapping them.

I'm pretty sure I can't use the stock control line without hacking it up, which I'd prefer not to do. Is there a preferred type/size of line to use? Silicone, or is something like fuel hose preferred? I know the Tial connection is a hose barb, so I assume I could just get one to mount on the charge pipe in the stock location and then run the line between them, if I can find something that screws in the stock location. I don't know that I want a long length of daisy-changed adapters, has anyone else done this? Surely this is not that uncommon...
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1982 931
1986.5 Silver 928S
2007 Hummer H3 (Daily Driver)

Past lives (I miss them all):
2004 RX-8 (Wrecked)
1993 RX-7 (Sold)
1987 RX-7 Turbo II (Sold)
1985 RX-7 GSL (Stolen)
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Carrera RSR  



Joined: 08 Jan 2010
Posts: 1953
Location: Somerset, UK

PostPosted: Wed Feb 05, 2020 7:32 pm    Post subject: Reply with quote

Ideally find a spare hard pipe and metal fittings at the waste gate end or get one made by a hydraulic hose company using brake line or similar.. It gets very hot in the waste gate area and could melt a rubber/silicone hose. Just cruise sees EGT's over 650deg. You will then overboost with a split hose. Silicone is fine on top of the engine
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
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bureau13  



Joined: 07 Sep 2017
Posts: 232
Location: South Florida

PostPosted: Thu Feb 06, 2020 1:37 am    Post subject: Reply with quote

Ahh. Good point...that would be bad. Any idea what size the stock banjo bolt fitting at the wastegate is? I've been assuming it won't fit the Tial, but supposedly the F46 was designed to be a replacement for the 930 wastegate (which we have) so...maybe worth checking, anyway.

Carrera RSR wrote:
Ideally find a spare hard pipe and metal fittings at the waste gate end or get one made by a hydraulic hose company using brake line or similar.. It gets very hot in the waste gate area and could melt a rubber/silicone hose. Just cruise sees EGT's over 650deg. You will then overboost with a split hose. Silicone is fine on top of the engine

_________________
-----------------------------------------
1982 931
1986.5 Silver 928S
2007 Hummer H3 (Daily Driver)

Past lives (I miss them all):
2004 RX-8 (Wrecked)
1993 RX-7 (Sold)
1987 RX-7 Turbo II (Sold)
1985 RX-7 GSL (Stolen)
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chuck21401  



Joined: 20 Feb 2005
Posts: 232
Location: Annapolis, MD

PostPosted: Thu Feb 06, 2020 8:52 am    Post subject: Reply with quote

Couple of thoughts:

1. The Tial 46 WG is discussed on many threads on this board, you might check over there: http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/


2. This page has links to drawings:
https://tialsport.com/index.php/tech-wastegates/31-wastegate-dimensional-drawings

F46
https://tialsport.com/documents/w3_tial_46_dim.pdf

Looking around...appears that the Tial has 10mm banjo bolt; I believe that the banjo bolt for the 931 WG (900 175 020 02) is 12mm.

https://sierramadrecollection.com/hollow-screw-12mm-x-24mm-911-930-78-89-p21065.html
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bureau13  



Joined: 07 Sep 2017
Posts: 232
Location: South Florida

PostPosted: Sat Feb 08, 2020 2:26 am    Post subject: Reply with quote

Thanks for that info!
_________________
-----------------------------------------
1982 931
1986.5 Silver 928S
2007 Hummer H3 (Daily Driver)

Past lives (I miss them all):
2004 RX-8 (Wrecked)
1993 RX-7 (Sold)
1987 RX-7 Turbo II (Sold)
1985 RX-7 GSL (Stolen)
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