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CXRacing Single Turbo "Street Car"

 
Old 04-19-2019, 09:31 AM
  #81  
69GTO96Z
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Y it off at the back to go dual 3’s over the axles. 3” is tight on the passenger side over the axle, but tons of room on the drivers side.
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Old 04-19-2019, 09:37 AM
  #82  
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Originally Posted by 69GTO96Z View Post
Y it off at the back to go dual 3’s over the axles. 3” is tight on the passenger side over the axle, but tons of room on the drivers side.
I was hoping to avoid Y'ing off because my OCD won't put up with uneven twin pipes out back and my fab skills aren't there yet to make them perfect. I'll save this as a last resort if I can't find a way to fit a 4" pipe all the way through there. I'm wondering if oval tubing may give me any better clearance.
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Old 04-19-2019, 09:44 AM
  #83  
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I am running a Huron 3” muffler less axle back. Flowmaster makes a nice 4” to dual 3” merge. With that and the Huron exhaust, you could get away with minimal fab work. I adapted mufflers into mine, but with a blower, the exhaust note didn’t sound right and was too obnoxious without mufflers.
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Old 04-19-2019, 09:55 AM
  #84  
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I didn't even consider that option, I may be able to do that. Do you have any pictures of it installed from under the car? My plan was to run 4" oval tubing angled away from my fuel lines all the way down the tunnel so I need to find out how close together the Huron pipes are before the diff/cradle.
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Old 04-19-2019, 02:52 PM
  #85  
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Old 04-19-2019, 02:56 PM
  #86  
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It works better than it looks. It’s 4” off the turbo to a 4” flex joint into a 4” in and dual 3” out Y, then to the bumper in 3”. I did add a 2 1/2 “ electric dump in the 4” tubing later to reassure my tuner the exhaust wouldn’t create excessive back pressure at heavy boost.

Last edited by junk c5; 04-19-2019 at 02:57 PM.
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Old 04-19-2019, 03:02 PM
  #87  
Turpid porpoise
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Originally Posted by junk c5 View Post
It works better than it looks. It’s 4” off the turbo to a 4” flex joint into a 4” in and dual 3” out Y, then to the bumper in 3”. I did add a 2 1/2 “ electric dump in the 4” tubing later to reassure my tuner the exhaust wouldn’t create excessive back pressure at heavy boost.
Thats exactly what I was planning. Was going to do a 4” boost activated cutout just behind the engine bay so I dont have to worry as much about backpressure. I think I can manage to build a system just like yours.
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Old 04-19-2019, 03:12 PM
  #88  
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I thought about a boost activated cut out but I couldn’t come off the money. I bought an electric cut out from eBay for less than $100 that is activated off a hand held wireless remote. The easy way would be to go buy the LG big 3 cat back and build between the cat back and turbo. I decided to go my route since I am constantly changing stuff .

Last edited by junk c5; 04-19-2019 at 03:13 PM.
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Old 04-19-2019, 03:21 PM
  #89  
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If you’re curious what it sounds like, here’s a pitch black video of me testing. Audio is about all the video is good for. Lol

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Old 04-22-2019, 10:20 AM
  #90  
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Originally Posted by Turpid porpoise View Post
Ordered the first batch of tubing to start running the exhaust all the way out the back and I'm hoping someone in here has some good ideas for how to get a 4" pipe all the way out the back. Mainly looking for ideas/suggestions for getting around the diff/axles.
i looked at it when debating my to/no to keep ac. It looked likea mini starter and some 4” ovaled pipe could sqeek by my quictme bellhousing. But i chose a front bumper exhaust
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Old Yesterday, 07:09 AM
  #91  
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Originally Posted by JoeyG View Post
i looked at it when debating my to/no to keep ac. It looked likea mini starter and some 4” ovaled pipe could sqeek by my quictme bellhousing. But i chose a front bumper exhaust
I've got a few tricks planned. I've removed both press in pipes on the end of the water pump, tapped and plugged the rear most hole and tapped and put a 90* 12AN elbow on the forward hole(I have a 12AN outlet on the overflow tank). I've already rerouted all my wiring and fuel lines and I have a few round to oval transitions so I can squeeze through any tight sections.

Getting rid of the hoses going into the side of the water pump gave me a good bit of clearance to get over the rack and under the manifold.

Last edited by Turpid porpoise; Yesterday at 07:10 AM.
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Old Yesterday, 10:21 AM
  #92  
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That route would alleviate ali of room for sure, especially in your case with all that is already removed.
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Old Yesterday, 10:33 AM
  #93  
Turpid porpoise
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Originally Posted by JoeyG View Post
That route would alleviate ali of room for sure, especially in your case with all that is already removed.
I'm hoping to get my hot parts back from coating today so I can start mocking everything up and figure out what bends I'm going to need to make this work.
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Old Yesterday, 11:58 AM
  #94  
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Looking good.
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