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Old 02-16-15, 11:05AM   #91
JSPONT
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Cool, this past year I did not run a muffler, down pipe under the car, it was not that loud believe it or not. I am putting a muffler this year.
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Old 02-16-15, 03:54PM   #92
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My goal is to get the exhaust to exit in the stock locations with the dual outlet tips behind the rear tires. I'll have to fab something with 3.5 in and dual 2.5 out.

I got a set of the Dynomax race bullet mufflers. From the looks of them they wont do much muffling but its worth a shot.
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79 Trans Am
476 IAII, 88mm Garrett turbo. 4000 lb race weight.
Best pass so far 9.65 @ 140. 1.41 60 ft.
4 lbs boost on t-brake. 14 lbs going down the track.
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Old 02-25-15, 05:43AM   #93
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Hey Yancy, great to see all the progress! I've been away from my own car and the forums a while but back a bit now and I look forward to seeing your car running and driving. Did you have any fitment problems with the headers? Just curious.
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Old 02-26-15, 01:17AM   #94
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Hey Aron. Things are coming along nicely. Got a new master cylinder and powder coated it black. Installed longer front wheel studs, calipers/pads and all new brake lines. One small leak to fix on the right rear and i should have all new brakes.

The headers fit pretty well. You had already told me that my 79 style clamshell mount might touch. I did have to modify it to clear the header. Very easy mod. My only concern right now is the 1/16 of an inch between the drivers side header and the rag joint. Im worried about heat causing the rag joint to fail. Not sure what I will do about it yet.
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79 Trans Am
476 IAII, 88mm Garrett turbo. 4000 lb race weight.
Best pass so far 9.65 @ 140. 1.41 60 ft.
4 lbs boost on t-brake. 14 lbs going down the track.
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Old 02-26-15, 02:28AM   #95
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I guess its a possibility that the rag joint could fail, you'll have to watch it and see. But there are lots of steering knuckles used to remove rag joints....just count the splines and look it up on ebay.
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Old 02-26-15, 10:09AM   #96
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I modified mine mine to a sterring joint. Pull my steering shaft out welded a splined end on. I'll try and get a picture later to post. Now I have plenty of room there and it looks better than the rag joint. The heat off that header will break that rag joint down over time.
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Old 02-26-15, 03:27PM   #97
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Default NO rag joint photo

Photos of what I did.

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Old 02-26-15, 08:14PM   #98
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Quote:
Originally Posted by JSPONT View Post
I modified mine mine to a sterring joint. Pull my steering shaft out welded a splined end on. I'll try and get a picture later to post. Now I have plenty of room there and it looks better than the rag joint. The heat off that header will break that rag joint down over time.
Looks good. Where did you get the splined end?
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79 Trans Am
476 IAII, 88mm Garrett turbo. 4000 lb race weight.
Best pass so far 9.65 @ 140. 1.41 60 ft.
4 lbs boost on t-brake. 14 lbs going down the track.
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Old 02-26-15, 11:56PM   #99
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www.borgeson.com

Jegs, summit, all sell them. They come in all different splines and thickness.
Many different combos. They come in different finishes also. There is a small u joint in there,
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Old 03-03-15, 12:20AM   #100
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Borgeson is 20 min from me one of my buddies worked there. Great stuff.
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Old 03-03-15, 12:01PM   #101
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I was afraid of my rag joint also. I cut the rag joint and the knuckle off of my stock steering shaft and used Borgeson joints also. The bottom joint was a 36spline to 3/4 smooth if I remember right. The top was a 48 spline to 1 inch smooth. If I remember right they only had a 48 spline to 1" joint in double d so I just ground out the flat parts of the d with my die grinder and welded them on. If you want I'll look up the pn's of the joints that I used.

This is in a '78 Trans am.
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Old 03-03-15, 11:52PM   #102
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Quote:
Originally Posted by meanone View Post
I was afraid of my rag joint also. I cut the rag joint and the knuckle off of my stock steering shaft and used Borgeson joints also. The bottom joint was a 36spline to 3/4 smooth if I remember right. The top was a 48 spline to 1 inch smooth. If I remember right they only had a 48 spline to 1" joint in double d so I just ground out the flat parts of the d with my die grinder and welded them on. If you want I'll look up the pn's of the joints that I used.

This is in a '78 Trans am.
If you have the P/N's that would be awesome. Thank you.
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79 Trans Am
476 IAII, 88mm Garrett turbo. 4000 lb race weight.
Best pass so far 9.65 @ 140. 1.41 60 ft.
4 lbs boost on t-brake. 14 lbs going down the track.
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Old 03-04-15, 05:36AM   #103
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The joints that I bought are Borgeson:
014349 1"-48 spline x 3/4"DD
015231 1"DD x 3/4"-30 spline
I couldn't find a 1"smooth x 3/4"- 30 spline so I bought this joint and just ground the flats of the DD out. I was gonna cut the shaft and install the 014349 joint on the DD section but it was gonna make it too short I 5hought. So I took the top joint apart on the shaft, cut the pin off of both sides, ground the DD of my joint to round , and welded the joint on. I did find a Borgeson joint pn 014364 that is 1"-48 spline x 3/4" smooth that would work for the top of the shaft. Hope this helps, Ronn8e.Ronnie

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Old 03-04-15, 04:32PM   #104
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This is cool, a thread that actually helps another fellow Pontiac guy. What a novel idea!!!
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Old 03-04-15, 05:58PM   #105
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There used to be a joint that bolted right up to the bottom of the column. I don't know if they stil make it though.
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