thinking outside the box... plenums/spider
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Fleet Mechanic
Joined: Nov 2006
Posts: 1,952
Likes: 1
From: Knoxville, TN
thinking outside the box... plenums/spider
Ok so I am just spit balling here....
With money tight and doing my upgrades in stages to an extent, this is what I am wondering...
Would it be possible to go from the stock turbo into a spyder then into the riff raff plenums? Skipping an intercooler for now...
I realize I would have to fab up some piping to go from the stock turbo to the spider....and I would have to step up in pipe inner diameter to match the two... I am thinking it would basically be a "u" shaped piece...
I don't have the money for the intercooler or a bigger turbo at the moment and with the engine out, doing efuel, up pipes, now would also be the time to do the plenums...but they don't work with a stock turbo..
Thoughts?
With money tight and doing my upgrades in stages to an extent, this is what I am wondering...
Would it be possible to go from the stock turbo into a spyder then into the riff raff plenums? Skipping an intercooler for now...
I realize I would have to fab up some piping to go from the stock turbo to the spider....and I would have to step up in pipe inner diameter to match the two... I am thinking it would basically be a "u" shaped piece...
I don't have the money for the intercooler or a bigger turbo at the moment and with the engine out, doing efuel, up pipes, now would also be the time to do the plenums...but they don't work with a stock turbo..
Thoughts?
Cargo Master
Joined: Nov 2010
Posts: 2,797
Likes: 10
Ok so I am just spit balling here....
With money tight and doing my upgrades in stages to an extent, this is what I am wondering...
Would it be possible to go from the stock turbo into a spyder then into the riff raff plenums? Skipping an intercooler for now...
I realize I would have to fab up some piping to go from the stock turbo to the spider....and I would have to step up in pipe inner diameter to match the two... I am thinking it would basically be a "u" shaped piece...
I don't have the money for the intercooler or a bigger turbo at the moment and with the engine out, doing efuel, up pipes, now would also be the time to do the plenums...but they don't work with a stock turbo..
Thoughts?
With money tight and doing my upgrades in stages to an extent, this is what I am wondering...
Would it be possible to go from the stock turbo into a spyder then into the riff raff plenums? Skipping an intercooler for now...
I realize I would have to fab up some piping to go from the stock turbo to the spider....and I would have to step up in pipe inner diameter to match the two... I am thinking it would basically be a "u" shaped piece...
I don't have the money for the intercooler or a bigger turbo at the moment and with the engine out, doing efuel, up pipes, now would also be the time to do the plenums...but they don't work with a stock turbo..
Thoughts?
I have made a fewof these with and without intercoolers on 2" or 3" plenums. Its very simple, you need 2 1/4" u bend and a 3" u-bend to make the "y". The 3" will be your base "y" into the 3" boots. A hole will be cut/plasma/torched into the 3" u bend to receive the 2 1/4" pipe flush welded. Cut the neck that mates to the turbo outlet of the stock Y and weld it to the other end of the 2 1/4" pipe. It takes a little creativity with angle to make it look factory, but its fairly straight forward. I do not have any pics of the 2" plenum setup or 3" plenum setups without an IC..
Here is a pic of the first one I ever did with 3" plenums and an IC on a stock turbo. Not perfect, and have made the setup look much better since fabbing on other trucks. It used a shaved 99.5+ x pipe, but a 3" u bend is much cheaper and less time consuming. Didn't have anything sitting around except reducers, now I can roll or have another shop roll a coned sheet for 2 to 3".
Thread Starter
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Fleet Mechanic
Joined: Nov 2006
Posts: 1,952
Likes: 1
From: Knoxville, TN
I have made a fewof these with and without intercoolers on 2" or 3" plenums. Its very simple, you need 2 1/4" u bend and a 3" u-bend to make the "y". The 3" will be your base "y" into the 3" boots. A hole will be cut/plasma/torched into the 3" u bend to receive the 2 1/4" pipe flush welded. Cut the neck that mates to the turbo outlet of the stock Y and weld it to the other end of the 2 1/4" pipe. It takes a little creativity with angle to make it look factory, but its fairly straight forward. I do not have any pics of the 2" plenum setup or 3" plenum setups without an IC..
Here is a pic of the first one I ever did with 3" plenums and an IC on a stock turbo. Not perfect, and have made the setup look much better since fabbing on other trucks. It used a shaved 99.5+ x pipe, but a 3" u bend is much cheaper and less time consuming. Didn't have anything sitting around except reducers, now I can roll or have another shop roll a coned sheet for 2 to 3".
Here is a pic of the first one I ever did with 3" plenums and an IC on a stock turbo. Not perfect, and have made the setup look much better since fabbing on other trucks. It used a shaved 99.5+ x pipe, but a 3" u bend is much cheaper and less time consuming. Didn't have anything sitting around except reducers, now I can roll or have another shop roll a coned sheet for 2 to 3".
Will I loose some boost going from small turbo outlet 2.25" to 3" plenums?
Thread Starter
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Fleet Mechanic
Joined: Nov 2006
Posts: 1,952
Likes: 1
From: Knoxville, TN
Aaron, You are correct on the stock turbo to 3"...however I was hoping to keep and re use the spider when I do upgrade turbos...
Fleet Mechanic
Joined: Jan 2011
Posts: 1,793
Likes: 74
From: Richland, WA
Correct me if I'm wrong here, but a stock Y-pipe is 2" to a 2" plenum. You want to go to a 3" plenum, right? The e99 trucks are 3" spider to a 2" plenum. So get a set of e99 boots and use the stock Y-pipe. Or is the e99 spider only 2.5"?
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Postmaster
Joined: Mar 2004
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Mmmm. I think you have it backwards. The e99 plenums are still 2" I think. Correct me if I am wrong
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Hotshot
Joined: Dec 2005
Posts: 14,376
Likes: 605
From: evansville in
Its gonna b custom.it might b able to be built maybe.that turn down to a y piece from the turbo may be very tight.
I don't think its worth the effort.when he upgrades turbo just do proper plenums then.I'm also thinking that the thick biller plenums and turbo inlet boot may be even tighter than normal..
I don't think its worth the effort.when he upgrades turbo just do proper plenums then.I'm also thinking that the thick biller plenums and turbo inlet boot may be even tighter than normal..
Thread Starter
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Fleet Mechanic
Joined: Nov 2006
Posts: 1,952
Likes: 1
From: Knoxville, TN
Its gonna b custom.it might b able to be built maybe.that turn down to a y piece from the turbo may be very tight.
I don't think its worth the effort.when he upgrades turbo just do proper plenums then.I'm also thinking that the thick biller plenums and turbo inlet boot may be even tighter than normal..
I don't think its worth the effort.when he upgrades turbo just do proper plenums then.I'm also thinking that the thick biller plenums and turbo inlet boot may be even tighter than normal..
Rather than going turbo outlet to spider This is more of what I was thinking... Pardon the rough ms paint but my drawing skill are lacking...
This is what I was originally wondering about...
Fleet Mechanic
Joined: Jan 2011
Posts: 1,793
Likes: 74
From: Richland, WA
Thread Starter
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Fleet Mechanic
Joined: Nov 2006
Posts: 1,952
Likes: 1
From: Knoxville, TN
Yes, but I know that they use a reducer boot at the spider and was thinking that it may be a 3-2" boot, but as verified below, it is only a 2.5-2" reducer.
So if the OP really wants to add the 3" plenums now, couldn't he just use the stock Y-pipe with a this 3-2" reducer? Tube Reducer
So if the OP really wants to add the 3" plenums now, couldn't he just use the stock Y-pipe with a this 3-2" reducer? Tube Reducer
Hotshot
Joined: Dec 2012
Posts: 11,272
Likes: 1,654
From: Las Cruces New Mexico
Yes, but I know that they use a reducer boot at the spider and was thinking that it may be a 3-2" boot, but as verified below, it is only a 2.5-2" reducer.
So if the OP really wants to add the 3" plenums now, couldn't he just use the stock Y-pipe with a this 3-2" reducer? Tube Reducer
So if the OP really wants to add the 3" plenums now, couldn't he just use the stock Y-pipe with a this 3-2" reducer? Tube Reducer
it should work
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