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12-07-2007, 08:24 PM #1
Pacesetter y-pipe beating the hell outa' floorboard
As yall know the factory y pipe is like, 1" tall and 4" wide and the pacesetter pipe is 3" ... Even though it's flattened it's still beating the shit out of my floor board... what can I do to fix the problem? there's no room for adjustment, i was thinking about getting some header wrap and using it as a buffer.... what have some of yall done?
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12-08-2007, 06:55 AM #2
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12-08-2007, 08:29 AM #3
- Join Date
- May 2007
- Location
- Memfrica
- Posts
- 20
I put in prothane motor mouts and mine quite banging
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12-08-2007, 08:57 AM #4
- Join Date
- Dec 2002
- Location
- n/w chicago
- Age
- 54
- Posts
- 6,932
black- 2000 nhra edition formula
heat up the pipe and bend it downwards, solved my problem with banging
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12-08-2007, 10:01 AM #5
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12-08-2007, 05:34 PM #6
Mine has the same issue,,,,there is no room for adjustment and the clearance designed into the system is simply not enough.
I can't heat it to bend,,,it's so close to the floor it would simpy burn the paint right off the floor boards,,,thats not goona happen.
Motor mounts won't cure mine,,,,as I already have a torque strap keeping the motor as still as I care too without too much vibration,,,,it has to move a little.
Tried a poly trans mount to keep the trans from lifting up and making the entire system closer to the floor,,,,this didn't help,,,and in fact made it worse since the poly mount was 1/4 inch thicker (including supplied spacer of 1/8 inch) and put everything closer to the floor,,, Not to mention it now transfers more noise from the rear of the car right up into the interior,,,,not what I want.
I have exhausted all the easy options listed above,,,with that said I am getting more drastic.
My solution currently in process is taking a cutting wheel and cutting 2 slots in the Y-pipe on the driver side,,,one right behind the header flange,,,and the other after the bend. The slots are on the bottom of the pipe roughly 4 inches long. This allowed me to grab the pipe and pull down,,,in affect bending the pipe slightly and giving me much needed room.
While it was held in place I mig welded the cuts back up to finish the job.
Currently grinding the welds down to make the repair undetectable. Good news is,,,,I didn't use a torch and still have paint on my floor pans,,,,lol bad news is the welding burnt the aluminized coating that comes on the pipes,,,but a torch would have done that also. So I have to live with a small area on the driver side pipe with no coating.
Test drive coming soon,,,,but as of right now,,,,I can foot brake the car in the garage and it's working fine,,,,,foot braking before would cause the pipe to vibrate on the floor,,,,,so far so good. Hope that helps.
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12-08-2007, 06:25 PM #7
- Join Date
- Dec 2002
- Location
- n/w chicago
- Age
- 54
- Posts
- 6,932
black- 2000 nhra edition formula
fbj, grab a crobar, bend pipe downwards. it should work.
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12-09-2007, 06:02 AM #8
I tried that,,,but probably didn't get aggressive enough,,,as I had this fear of tearing up the paint,,,but I had the car rocking on the lift pretty good before I decided to quit. I was even doing chin ups on the pipe If I had about 3 guys hanging off of it maybe we could have accomplished it,,,,lol.
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12-09-2007, 09:39 AM #9
- Join Date
- Aug 2007
- Location
- Iowa
- Posts
- 103
Red- 2000 SS
I would try putting some coolant hose between the pipe and the floor board. Many people seem to do this and it works. I am glad my y-pipe doesn't bang at all. Good luck.
2000 SS M6 #5445 - 13k miles
SLP Lid, Pacesetter LT's/ORY, SLP dual/dual catback, QTP cutout, Hurst w/ WS6 store SS
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12-09-2007, 12:05 PM #10
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12-10-2007, 02:44 PM #11
- Join Date
- Mar 2007
- Location
- Maryland
- Posts
- 157
Blue- 99 Z28
There's a bracket made specifically for this problem. I just ordered one from www.ws6store.com for $40.
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12-11-2007, 05:29 PM #12
Proper way to fix is have an exhaust shop make an "s" bend in the Y. Did this with my XS headers/TSP Y pipe.
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12-12-2007, 03:29 AM #13
That looks like it would work,,,but those cuts and welds are a little too visible for me. What I did was more subtle and since I have ground the welds down,,,,my pipe still looks like one piece and modification is undetectable. I'm weird that way though.
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12-12-2007, 03:59 AM #14
I had to cut out a piece of my Y pipe and weld in a new piece that was bent down about an inch, i also put in the Mufflex "bump stop" and havent had a problem since.
J2001 SS, Its not the car its the Driver that matters....
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12-26-2007, 09:30 AM #15
- Join Date
- Apr 2006
- Location
- Jeffersonville, Indiana
- Age
- 45
- Posts
- 796
Monterey Maroon Metalic- 2000 Z28
I had this problem, the Prothanes did the trick though. I have a used Bumpstop sitting around if anybody is interested.
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12-26-2007, 09:50 AM #16
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12-26-2007, 03:40 PM #17
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12-28-2007, 03:29 PM #18
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12-28-2007, 06:26 PM #19
- Join Date
- Apr 2006
- Location
- Jeffersonville, Indiana
- Age
- 45
- Posts
- 796
Monterey Maroon Metalic- 2000 Z28
When I had mine on it did a very good job. Just to give you guys an idea of how good it is, my driver side motor mount was hanging together by about an inch of material which allowed the motor to torque twist a good amount but regardless of this I had only a little rattle at low RPM's. After the Prothanes I had no problem but if you know your mounts are good the Bump Stop might be a good alternative to a more involved project such as cutting and welding, etc.
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12-29-2007, 10:40 AM #20
Loosen the exhaust all the way back to where it goes over the axle. You want to be able to twist that pipe that goes over the axle to change that angle. After it's loose twist the pipe going over the axle changing the angle to give you as much clearance as possible on both sides of the Y. After you feel good about the clearance wedge a couple pieces of wood between the floorboard and Y pipe where it's the closest. Tighten everything back down real good. Knock out the wood pieces and you're done.
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