1986 Buick GX1
GX1 #001 [The One and Only]
I use 308 stainless wire in my MIG, it's non-magnetic, non tarnishing and seems to work well with 409 and 304 stainless tubing.
I believe it would work just as well for TIG.
3 or 4 inch single shot
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I use 308 stainless wire in my MIG, it's non-magnetic, non tarnishing and seems to work well with 409 and 304 stainless tubing.
I believe it would work just as well for TIG.
ttypewhite
Well-Known Member
I will add this to anyone interested in the 4" single... If you have a HR bar on your car, it will come in contact with that tail pipe. I had to have my Dad's massaged in that area to give clearance. Bumps in the road and hard launches will definitely play on your nerves if it isn't addressed. But imo, I really like the sound/tone of it.
Would you happen to have any pics of the "massaged" area on the tailpipe? My 4" sysyem was delivered yesterday and I was fearing some additional work would be needed...
ttypewhite
Well-Known Member
Unfortunately I don't, but your basically going to have to clearance it in the area of the HR bracket like you would a downpipe and the frame to give room around the heater box. How much you need to bang it all depends on how it's positioned.
TR Custom Parts
Mark Hueffman - Owner
1984 t-type
Murphy's Law
Any sound clips ?
TR Custom Parts
Mark Hueffman - Owner
Not at this time. Really hard to go by a sound clip over a computer to get the real sound anyway. I will say most single muffler systems will have some drone to them but people have expressed interest in a single so here it is.
1984 t-type
Murphy's Law
I went from a 3'' single shot to the 2.5'' pypes with race pros and noticed no difference other than sound.
forcefed3.8's
Buckeye Bullet
A 2.5" dual system outflows a single 3". A single 3" becomes a restriction in the low 10s.
michael evans
Well-Known Member
I just put a 4 inch GN-1 single on to replace the 2.5 dule rusting cat back system.
The old system was 409 stainless (will rust), so the entire exhaust is 304 stainless now (will not rust).
It is extra tight over the rear end as I also have a HR sway.
I usually weigh everything as I take something off and put something on to see the difference but I put it in the scrap bin as I cut it off this time.
Has to be lighter as less material is used.
The old system was 409 stainless (will rust), so the entire exhaust is 304 stainless now (will not rust).
It is extra tight over the rear end as I also have a HR sway.
I usually weigh everything as I take something off and put something on to see the difference but I put it in the scrap bin as I cut it off this time.
Has to be lighter as less material is used.
434nova
Active Member
Do you have any pictures of the tight areas? Thanks
87gn-newbee
Active Member
Plenty of room with the RJC 4” and HR bar on my car.
michael evans
Well-Known Member
I have a 3" cat on mine, and it has a circular output, the 2.5" dual pypes has an oval inlet. There is no outside leakage at the flange, but I have to wonder if some performance being lost by having non-matching inlet/outlets. The drone is a non-starter for me though, I do like the sound of the pypes dual.
michael evans
Well-Known Member
I tried to get some pictures tonight but did not come out to well. Before I put the springs and shocks back on, I ran the rear end up and down while checking for clearance.
Did not even have to hit the pipe once. I did how ever had to loosen the H & R bar on the rear end and pivot it to the rear just a little.
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nice!for those that run airbags there always needs to be a little wiggle room as things move around alot on a street car.i have seen cars loose an airbag off a 3 inch that was a little tight on more than one occasion.without the airbag than one doesnt have to worry.
