stock wastegate in compound set-up - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 18 (permalink) Old 09-13-2007, 11:57 PM Thread Starter
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stock wastegate in compound set-up

How much exhaust flow can the stock internal wastegate on our trucks bypass? I want to build a towing compound set-up, that can be run with hybrids using the stock turbo if possible. the only part I don't have figured out is if I need to use an external gate or if the stock one will be sufficient . I will only be looking for around 400 hp max and plan to tow at around 300. I know I don't really need compounds, but I like doing challenging things and I really love the scream of compounds.

2005 Chevy 3500 crew cab dually allison auto.
2007 dodge 3500 QC dually 5.9 cummins, 6-spd.
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post #2 of 18 (permalink) Old 09-14-2007, 12:57 AM
 
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Re: stock wastegate in compound set-up

you need to call black widow they can help you and i would go with two new TN turbos
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post #3 of 18 (permalink) Old 09-14-2007, 01:06 AM
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Re: stock wastegate in compound set-up

i believe the external wastegate is the call.

08' F250 4x4 w/ 3:55's
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post #4 of 18 (permalink) Old 09-14-2007, 01:11 AM Thread Starter
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Re: stock wastegate in compound set-up

If I have to replace the stock turbo, it will be with an S300 feeding an S400. I can get really good prices on Borg Warner products and I know the combo works well on cummins motors. The big thing is that this will be a very mild set of compounds for towing, not all out power. I believe that the stock turbo can be used as the secondary, I may just try it using the stock gate and add an external later if necessary.

2005 Chevy 3500 crew cab dually allison auto.
2007 dodge 3500 QC dually 5.9 cummins, 6-spd.
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post #5 of 18 (permalink) Old 09-14-2007, 01:52 AM
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Re: stock wastegate in compound set-up

why not get a stock 1.0 A/R housing without the WG and add an external WG?

2002 F250
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post #6 of 18 (permalink) Old 09-14-2007, 01:57 AM
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Re: stock wastegate in compound set-up

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Originally Posted by phale View Post
How much exhaust flow can the stock internal wastegate on our trucks bypass?
Are you wanting to know the size of the wastegate?

If only those who knew what they were talking about replied, this thread would still be on page one.
2000 F-250 CC 4x4 PSD Auto
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post #7 of 18 (permalink) Old 09-14-2007, 02:14 AM Thread Starter
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Re: stock wastegate in compound set-up

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Originally Posted by 444-4D View Post
Are you wanting to know the size of the wastegate?
yes, that is what I would like to know.

2005 Chevy 3500 crew cab dually allison auto.
2007 dodge 3500 QC dually 5.9 cummins, 6-spd.
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post #8 of 18 (permalink) Old 09-14-2007, 02:18 AM Thread Starter
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Re: stock wastegate in compound set-up

Quote:
Originally Posted by DarkShadowDiesel View Post
why not get a stock 1.0 A/R housing without the WG and add an external WG?
That is what I will more than likely do if the stock housing will not work for my application. I would just like to show that a good towing set-up can be built relatively cheap using stock components, as opposed to having to pay for both a primary and new secondary turbo.

2005 Chevy 3500 crew cab dually allison auto.
2007 dodge 3500 QC dually 5.9 cummins, 6-spd.
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post #9 of 18 (permalink) Old 09-14-2007, 02:41 AM
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Re: stock wastegate in compound set-up

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Originally Posted by phale View Post
yes, that is what I would like to know.
I've measured them in the past but I can't remember what they are. Seems like they may be 18mm. If no one gives you the info tonight, I'll measure one tomorrow morning and let you know.

If only those who knew what they were talking about replied, this thread would still be on page one.
2000 F-250 CC 4x4 PSD Auto
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post #10 of 18 (permalink) Old 09-14-2007, 02:45 AM Thread Starter
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Re: stock wastegate in compound set-up

Thanks, I am just wondering if I can keep the stocker limited to about 20 lbs. using that small of a gate or If I will have to use one in the 30 mm range. I am sure I don't need a 44mm like Charles is using, but I am not sure if 18-20 will be enough. Either way this is just going to be a spare time project for me and I still have a lot of fitment and planning to do before I start.

2005 Chevy 3500 crew cab dually allison auto.
2007 dodge 3500 QC dually 5.9 cummins, 6-spd.
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