Another example of dual exhaust, sfc's, cross member
#1
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Another example of dual exhaust, sfc's, cross member
Yup I wanted dual exhaust and now I am almost done. To achieve good clearance I had to fab up a new transmission cross member. I also needed to change the cross member mounting location. It now interfered with my inner subframe connectors so I bent up some new sfc's while I was at it.
Last edited by 91ls1t56; 02-08-2015 at 01:07 PM.
#2
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Re: Another example of dual exhaust, sfc's, cross member
This is the left side over the axle upon full compression of the axle. Not a lot of room, I hope it is enough. Also a pic of it all bolted up, it all tucks up in there pretty nice.
Last edited by 91ls1t56; 06-25-2017 at 01:12 PM.
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Car: 92 Firebird
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Re: Another example of dual exhaust, sfc's, cross member
Pretty cool. I'd like to see how you went up and over the axle on the LH side
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Re: Another example of dual exhaust, sfc's, cross member
What size exhaust pipe is it?
Can u get better pics of the exhaust going over the axle? I'm planning to do something simular and I'm going with 3" dual exhaust. Otherwise I got a Panhard bar relocation kit which allows dual exhaust on the pass side but I would rather do it like u did.
Can u get better pics of the exhaust going over the axle? I'm planning to do something simular and I'm going with 3" dual exhaust. Otherwise I got a Panhard bar relocation kit which allows dual exhaust on the pass side but I would rather do it like u did.
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Re: Another example of dual exhaust, sfc's, cross member
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Last edited by 91ls1t56; 06-25-2017 at 01:13 PM.
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Car: 1992 Camaro RS
Engine: Rebuilt 350 going in after paint
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Axle/Gears: 4thgen disc rear w/ 3.73 Posi
Re: Another example of dual exhaust, sfc's, cross member
What size tubing did you use for the SFCs and trans crossmember?
Also, have you thought about adding some plates to the SFCs to attach them to the floor pan under the rear seats? Right about where the bend is in the SFCs? I think that would add some more strength without adding a lot of weight. Otherwise, it seems to me that part of the SFCs would just "float" there and not add much more to the overall stiffness of the chassis.
Also, have you thought about adding some plates to the SFCs to attach them to the floor pan under the rear seats? Right about where the bend is in the SFCs? I think that would add some more strength without adding a lot of weight. Otherwise, it seems to me that part of the SFCs would just "float" there and not add much more to the overall stiffness of the chassis.
#7
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Re: Another example of dual exhaust, sfc's, cross member
I used 1 5/8 od .120 wall dom tubing. It dose kinda just float there. I had Alston inner sfc's and I will admit it was tough, but I banged em up a few times. They were a straight shot from about the same points. I did it this way and ended up with some extra ground clearance.
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#8
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Re: Another example of dual exhaust, sfc's, cross member
I hope these help. I used 2 1/2" pipe. I am also using a gas tank out of a ls1 car. It has a floppy filler neck and pops in and out of the car like nobodys business. The ls1 gas tank also has an indentation just above the pan hard bar brace. When making the pan hard bar brace I was able to obtain additional clearance because of the indentation on the gas tank. You can see there is more room to be had and I believe that you could fit 3" tube through there.
http://cdn2.bigcommerce.com/server15...0.1280.jpg?c=2
3" is still 3", so mine would be .5" large in DIA but i would have less room due to the bar design ugh lol… I might try to oval the exhaust at that point for 1" of extra clearance and it shouldn't hurt flow.
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Re: Another example of dual exhaust, sfc's, cross member
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Last edited by 91ls1t56; 06-25-2017 at 01:19 PM.
#10
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Re: Another example of dual exhaust, sfc's, cross member
Yea it's in there quite alot huh lol.
It's a stock 3rd Gen tank thay I have sumped for an external pump and -10 return line fitting welded on. Works fine... I will have to see what the bar looKS like when I get it... good news is that since I'm relocating the Panhard bar I will drop the Panhard bar down on the left side as well so the bar is moving down as well giving me more room as well... Really depends on clearance around the axle tube. Hoping coil overs give me alittle room as well.
I gotta see what it looks like but I know it's gona be tight.
It's a stock 3rd Gen tank thay I have sumped for an external pump and -10 return line fitting welded on. Works fine... I will have to see what the bar looKS like when I get it... good news is that since I'm relocating the Panhard bar I will drop the Panhard bar down on the left side as well so the bar is moving down as well giving me more room as well... Really depends on clearance around the axle tube. Hoping coil overs give me alittle room as well.
I gotta see what it looks like but I know it's gona be tight.
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Re: Another example of dual exhaust, sfc's, cross member
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Last edited by 91ls1t56; 06-25-2017 at 01:20 PM.
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Re: Another example of dual exhaust, sfc's, cross member
My bar will not fit with a stock third gen tank. Aside from being plastic a fourth gen tank is externally identical except for the dent needed to make my bar work and the floppy filler neck. I am running a Moser 9" the od of the axle tube is 3" a little beefier than stock. I have plenty of room over the axle the tight spot is in between the pan hard bar and pan hard bar brace. The drop bar is not going to help on the left hand side, it will probably give you all the room you want on the right hand side of the car.
My ford 8.8 has 3" axle tubes as well. Maybe your not following… the pan hard bar brace sits still on the driver side and pass side. The pan hard bar is located below and moves up and down as suspension compresses and decompresses. Since the upper support bar is fixed if I lower the pan hard bar itself both at the frame mount (pass side) and the driver side (on the rear axle tube bracket) it effectively gives me alittle more room no? The Founders bar I purchased lowers the pan hard bar at the frame mount a good bit (prob 2") and I have a bracket I welded to my pan hard bar axle mount… thus allowing me to change my roll center by moving the bar up and down to level it out on the axle tube. Pushing it down toward the ground will help level my lowered pan hard bar mount on the frame as well as increase my clearance for the exhaust… phew lol.
Heres a quick drawing of my rear end (will have coil overs soon) and you can see the exhaust and thats where I will be running the pipes over the axle and out the back. In the pic, green shows where the PHB and support will be (can see my lowering holes on the rear axle mount) and how it will be lower than stock… it actually already is be my car was lowered.
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Re: Another example of dual exhaust, sfc's, cross member
You said bung.
#15
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Re: Another example of dual exhaust, sfc's, cross member
Where do you want to put the pipe ? In between the gas tank and the brace or in between the brace and the pan hard bar.
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Re: Another example of dual exhaust, sfc's, cross member
Exactly… Im going to route the pass side just like OEM, the drive side will do between the PHB brace and the PHB/Axle tubes. Thats the only way for me… not going to loop both sides to the pass side and then come all the way back on the driver. This is why Im worried about the PHB support and PHB scissoring the exhaust pipe. I get my relocation bar tmrw and will hopefully see soon what I can do.
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Re: Another example of dual exhaust, sfc's, cross member
Looks great!
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