external wastegate + stock manifold?

[dunkyfried]

Is this possible? I am on a budget and wanting to get the most turbo setup for my money. I have read time and time again that I will just be disappointed with the internal on any turbo. Can the external wg be attached to the 2g mani at all?


MOD EDIT: Please keep "want-to-buy" adds and requests out of the Tech forums.

 

[GVR4592]

It can be done but it isn't pretty. It is almost guaranteed to crack unless it is welded properly. Pre-heating and cool down are very important when welding cast iron. You could go external on the O2 housing if you want to fab up your own.

 

[dalatinromeo]

Is this possible? Can the external wg be attached to the 2g mani at all?

Yes, and yes.

There is a moderator on here who has done it already. If I am correct I believe his name is 99gstracer. Send him a PM, he can tell you how he did it.

Hope this helps. Stay boostin

 

[99gst_racer]

Yes, it can be done. GVR4592 is mostly correct. It will be pretty is done properly, but it is not an easy process. Definitely have a professional welder (one who has extensive experience with welding stainless to cast) do it for you.

Here, read this.

 

[dunkyfried]

thanks for the info.... of course I have read all over the place that if I go with an internal w/g that I will be disappointed....true or not. Sorry to be a pain but the guy here at our local sped shop pfispeed, is talking up the t3/t4 style turbonetics stuff.. 60-1 hifi, external w/g, new manifold.... so when all is said and done my budget is shot to hell. I know the saying " built it right once" and Im not trying to skimp but my car cant be down for too long and I dont want to order parts then have to order something after the fact.

thanks

 

[dalatinromeo]

thanks for the info.... of course I have read all over the place that if I go with an internal w/g that I will be disappointed....true or not.

True! High boost and internal gates DON'T mix well. You will be able to control MUCH better going external.

 

[91gvr4]

Mines done and works perfectly, no cracks in 2 yrs.

 

[BoostedAWD91]

You can have it done quick easily just send it out to a DSM Performance shop to have it done. DSM Motorsports did mine and it is excellent work

 

[jdmspilner]

What do you think Bushur has ran all these years?

 

[brryder]

I hear everyone saying that you have to pre-heat the manifold and do "special" welding in order to weld it. However, when I did my, I used shec. 40 1.5 inch gas pipe from home depot and a mild steel flange and just used my 135 mig welder without pre-heating or any other step. It' has been on my car for a little over 2 years and never had 1 issue with. The weld look good IMO. I will take some pics of it today and post it.

Adriano