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Re: External Wastegates
#105300
02/05/2006 10:55
02/05/2006 10:55
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Anonymous
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Anonymous
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very interested to know more about it as well...
is there anyway to have this installed without having the piping soldered or weldered onto the manifold?
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Re: External Wastegates
#105301
02/05/2006 11:21
02/05/2006 11:21
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Joined: Dec 2005
Posts: 1,895 New Zealand
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Quote:
very interested to know more about it as well...
is there anyway to have this installed without having the piping soldered or weldered onto the manifold?
Don't think so - you may be able to make up an adaptor just before the turbo but generally it is either a custom manifold or getting a pipe welded into the cast one.
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Re: External Wastegates
#105302
02/05/2006 13:52
02/05/2006 13:52
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Anonymous
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Anonymous
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yes , definitely a pipe welded onto the manifold immediately prior to the turbo exhaust inlet flange , to feed the Tial.
apparently only required for madly tuned coupes since the normal flapper wastegate can go all the way to 3++ bhp, no issues.
of course , if you're after the noise from a vent-to-air external wastegate (ie , vide a screamer pipe) ... then by all means ...... the quieter ones are plumbed back onto the exhaust post turbo.
cheers.
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Re: External Wastegates
#105303
02/05/2006 14:01
02/05/2006 14:01
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Anonymous
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Anonymous
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having it welded onto the manifold, as mentioned,...will it either strenghten the manifold (since it cracks pretty easily) or just makes it worse?
manifold does seem delicate to me, that's y i'd rather not to have it welded on it....any other solution?
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Re: External Wastegates
#105304
02/05/2006 17:05
02/05/2006 17:05
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Joined: Dec 2005
Posts: 12,294 Sandhurst
Begbie
Ex El Presidente
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Ex El Presidente
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Posts: 12,294
Sandhurst
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Buy a tubular manifold with the wastegate pipe already made as part of the process. I have only found one company doing this and it isn't cheap either
Your car is Usain Bolt with wellies
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Re: External Wastegates
#105306
02/05/2006 18:39
02/05/2006 18:39
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Joined: Dec 2005
Posts: 12,294 Sandhurst
Begbie
Ex El Presidente
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Ex El Presidente
I AM a Coop
Joined: Dec 2005
Posts: 12,294
Sandhurst
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It would, but then you have no idea on how well it will last. Will it take the extra weight, will it crack, is it in the right place etc... Also your then using a stock manifold with ext. wastegate where as if your going ext wastegate for power, you may as well get a tubular manifold at the same time
Your car is Usain Bolt with wellies
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Re: External Wastegates
#105307
02/05/2006 21:38
02/05/2006 21:38
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Anonymous
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Anonymous
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is there any other solution?
any means of havin' one installed without messing with the manifold?
thanks...
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Re: External Wastegates
#105308
02/05/2006 21:43
02/05/2006 21:43
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Joined: Dec 2005
Posts: 12,294 Sandhurst
Begbie
Ex El Presidente
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Ex El Presidente
I AM a Coop
Joined: Dec 2005
Posts: 12,294
Sandhurst
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yes, you could buy a turbo with the seperate holes for the exhaust (one for turbine and one for internal wastegate) so its on a 5 stud flange, you then run a small exhaust pipe from what would be the internal wastegate hole to wastegate and control the boost that way, not the best, but this way you get external wastegate on a turbo that is designed to be internal
Your car is Usain Bolt with wellies
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Re: External Wastegates
#105309
02/05/2006 21:45
02/05/2006 21:45
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Anonymous
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Anonymous
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Jamie is running exactly what Begbie has described on a GT28rs
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Re: External Wastegates
#105310
02/05/2006 21:46
02/05/2006 21:46
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Anonymous
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Anonymous
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alright..gotcha!
i don't plan to change my turbo as yet... so i guess, under such circumstances, i've got no choice but to weld it onto the manifold....if ever i decided to go with external wastegate....
am i right?
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Re: External Wastegates
#105311
02/05/2006 21:52
02/05/2006 21:52
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Joined: Dec 2005
Posts: 12,294 Sandhurst
Begbie
Ex El Presidente
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Ex El Presidente
I AM a Coop
Joined: Dec 2005
Posts: 12,294
Sandhurst
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Thats correct, but external wastegate is better for cars with 400bhp+
Your car is Usain Bolt with wellies
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Re: External Wastegates
#105312
03/05/2006 02:05
03/05/2006 02:05
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Anonymous
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Anonymous
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Re: External Wastegates
#105313
03/05/2006 02:13
03/05/2006 02:13
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Anonymous
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Anonymous
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Re: External Wastegates
#105314
03/05/2006 02:22
03/05/2006 02:22
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Anonymous
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Anonymous
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Thats not an actual external wastegate though,its only a pipe from the internal one that is re-routed back into the turbo/exhaust down pipe.
Last edited by paddy147; 03/05/2006 02:23.
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Re: External Wastegates
#105315
03/05/2006 02:37
03/05/2006 02:37
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Anonymous
Unregistered
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Anonymous
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Used to have a screamer on my MR2. Extremely loud but I loved it
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Re: External Wastegates
#105316
03/05/2006 03:24
03/05/2006 03:24
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Anonymous
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Anonymous
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Massive HKS external wastegate on my mechanic,s 800bhp GTR Skyline is so loud that it needs it,s own pipework and back box to quieten it down.This beast of a car is one loud,flame spitting mother of a car to be in on full boost.This car is so loud inside it with the huge HKS turbo and wastegate that Robbie had to install an intercommsystem to talk to his passengers.I had the privilage of getting out in her for 10 laps in Mondello Park yesterday. The smaller exhaust backbox on the right of the pic is for the wastegate. http://i3.photobucket.com/albums/y92/alfa147turbo/MVC-008cS.jpghttp://i3.photobucket.com/albums/y92/alfa147turbo/MVC-014Sqe.jpg
Last edited by paddy147; 03/05/2006 03:31.
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Re: External Wastegates
#105317
03/05/2006 04:09
03/05/2006 04:09
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Anonymous
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Anonymous
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Quote:
Thats not an actual external wastegate though,its only a pipe from the internal one that is re-routed back into the turbo/exhaust down pipe.
i know its not just KP mentioned jamies pipe so i thought i would show a pic
Kev
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Re: External Wastegates
#105318
03/05/2006 05:02
03/05/2006 05:02
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Anonymous
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Anonymous
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Sorry,I wasnt trying to be smart.Was just saying it,thats all.Still a nice and neat little bit of piping and welding there though.
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Re: External Wastegates
#105320
03/05/2006 10:07
03/05/2006 10:07
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Anonymous
Unregistered
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Anonymous
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Quote:
yes, you could buy a turbo with the seperate holes for the exhaust (one for turbine and one for internal wastegate) so its on a 5 stud flange, you then run a small exhaust pipe from what would be the internal wastegate hole to wastegate and control the boost that way, not the best, but this way you get external wastegate on a turbo that is designed to be internal
something like this :-
http://www.atpturbo.com/root/releases/release103105.htm
would probably be more relevant for Coupes , in view of the lack of space to do a proper ext.w/g installation and difficulty in sourcing a tubular manifold (for 20VT).
cheers.
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Re: External Wastegates
#105321
03/05/2006 12:58
03/05/2006 12:58
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Anonymous
Unregistered
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Anonymous
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Re: External Wastegates
#105322
03/05/2006 13:07
03/05/2006 13:07
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Anonymous
Unregistered
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Anonymous
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very sweet...is that stock coupe's manifold?
hmm...did u not weld it onto the manifold?
any feedbacks?
CHeers...
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Re: External Wastegates
#105324
03/05/2006 15:19
03/05/2006 15:19
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Anonymous
Unregistered
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Anonymous
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Re: External Wastegates
#105325
04/05/2006 00:12
04/05/2006 00:12
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Anonymous
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Anonymous
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Sorry my bad English... This is a Marea Weekend Turbo 2.0 20V, uses the same motor of Coupe 20VT, the mainfold was custom made, all has photos of my project in link below! http://s2.photobucket.com/albums/y39/TETEUS/Tanks!
Last edited by MWT; 04/05/2006 00:15.
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Re: External Wastegates
#105326
04/05/2006 01:49
04/05/2006 01:49
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Anonymous
Unregistered
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Anonymous
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Re: External Wastegates
#105328
04/05/2006 04:53
04/05/2006 04:53
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Anonymous
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Anonymous
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Mike Charalambous's Integrale 2.0 ltr 16v 650bhp in hill climb trim at the wheels 827bhp at the wheels, there are more videos on the site-real motorsport, but in greek its not all that easy to navigate.
rich
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