divemaster5734
Full Access Member
After reinstalling the 088 turbo I realized the "sprung" spring that was connected from the cross pipe Y to the tailpipe was obviously worthless.
I twisted some tie wire with a drill and routed through the hole on the cross pipe collar to support the tailpipe.
This is the only fastener to keep the tailpipe in the turbo exhaust output.
I initially assumed the tie wire would keep the pipes fixed relative to the turbo, which should also allow for the engine flex movement.
That said, there's still some sideways movement just by grabbing the tailpipe and pushing it.
Is that normal for a turbo set up?
There is a seal on the inside of the turbo output, but nothing to keep it firmly in place as the exhaust from the non turbo engines I've worked on.
Would it be better to locate a very strong spring?
That said, it takes some pretty good pressure to keep the pipe inside the turbo.
Which is probably why the spring went bad.
Without anything in that place the tail pipe can slide a 1/2" out past the turbo.
There's only one place I can see where I could possibly fab a pipe mount.
This is at the transmission crossmember.
When I swapped from the E4OD to ZF542 I had to spin the member 180°, then cut down that gusset and re-welded.
I was slightly off on the angle, I went 90° on each end, and should have gone 80/100, but it's close enough to be bolted top and bottom.
There's two bolts in the bottom flange, so I'm wondering about finding a rubber block to mount directly under that pipe clamp.
Open to suggestions,
One note, if keeping the rigid tie wire method I'd probably be swapping that tie wire for stainless steel safety wire as that tie wire will be rusted in a couple months.
Anyone who has raced knows what I'm talking about. You have to run it through all external nuts and bolts before you can get your bike passed for road track.
You really don't want someone's axle nut to come off at 160mph when your face is a couple feet behind their rear tire.
Again, I'd fold a piece and twist the stainless wire with a drill before routing.
Thanks
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I twisted some tie wire with a drill and routed through the hole on the cross pipe collar to support the tailpipe.
This is the only fastener to keep the tailpipe in the turbo exhaust output.
I initially assumed the tie wire would keep the pipes fixed relative to the turbo, which should also allow for the engine flex movement.
That said, there's still some sideways movement just by grabbing the tailpipe and pushing it.
Is that normal for a turbo set up?
There is a seal on the inside of the turbo output, but nothing to keep it firmly in place as the exhaust from the non turbo engines I've worked on.
Would it be better to locate a very strong spring?
That said, it takes some pretty good pressure to keep the pipe inside the turbo.
Which is probably why the spring went bad.
Without anything in that place the tail pipe can slide a 1/2" out past the turbo.
There's only one place I can see where I could possibly fab a pipe mount.
You must be registered for see images attach
This is at the transmission crossmember.
When I swapped from the E4OD to ZF542 I had to spin the member 180°, then cut down that gusset and re-welded.
I was slightly off on the angle, I went 90° on each end, and should have gone 80/100, but it's close enough to be bolted top and bottom.
There's two bolts in the bottom flange, so I'm wondering about finding a rubber block to mount directly under that pipe clamp.
Open to suggestions,
One note, if keeping the rigid tie wire method I'd probably be swapping that tie wire for stainless steel safety wire as that tie wire will be rusted in a couple months.
Anyone who has raced knows what I'm talking about. You have to run it through all external nuts and bolts before you can get your bike passed for road track.
You really don't want someone's axle nut to come off at 160mph when your face is a couple feet behind their rear tire.
Again, I'd fold a piece and twist the stainless wire with a drill before routing.
Thanks
