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Re: Andy's 91' 80q
Posted: Tue Jan 27, 2026 7:11 pm
by mrdeye
Like a glove!

Re: Andy's 91' 80q
Posted: Fri Jan 30, 2026 2:16 pm
by audifreakjim
rennenmsports wrote: Mon Nov 03, 2025 1:28 pm
Hello again. It’s been a long time. I decided to keep it. Too sentimental. The piston rings went. I’m going to be able to get a short block from Marc in about 6 months. Now that I know which turbine housing I’m going to use I can make the exhaust and intake as well.
Glad you kept it! I've been checking out your build. Love the airbox

Re: Andy's 91' 80q
Posted: Mon Feb 02, 2026 8:28 pm
by rennenmsports
audifreakjim wrote: Fri Jan 30, 2026 2:16 pm
rennenmsports wrote: Mon Nov 03, 2025 1:28 pm
Hello again. It’s been a long time. I decided to keep it. Too sentimental. The piston rings went. I’m going to be able to get a short block from Marc in about 6 months. Now that I know which turbine housing I’m going to use I can make the exhaust and intake as well.
Glad you kept it! I've been checking out your build. Love the airbox
Thank you! I worked hard on this. I’m glad you like it. Hopefully it will be ready to tune by the end of April
Re: Andy's 91' 80q
Posted: Thu Feb 05, 2026 11:16 am
by rennenmsports
I shortened the downpipe a little to fit this
I hope haha. Wish me luck. 3” oval tubing. More ground clearance and will leave more room from melting the axle boot

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Re: Andy's 91' 80q
Posted: Sat Feb 07, 2026 9:42 am
by rennenmsports
Here’s progress so far. No oval tubing. Can’t get it to fit

do you all run 3” tubing? I’m worried about ground clearance and melting things?

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Re: Andy's 91' 80q
Posted: Sat Feb 07, 2026 1:18 pm
by rennenmsports
1 3/4 roll cage tool and a serpentine belt alignment tool to merge the wastegate into the downpipe

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Re: Andy's 91' 80q
Posted: Mon Feb 09, 2026 9:33 pm
by rennenmsports

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Re: Andy's 91' 80q
Posted: Mon Feb 09, 2026 9:34 pm
by rennenmsports

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Re: Andy's 91' 80q
Posted: Sat Feb 14, 2026 8:32 am
by rennenmsports
I’ve got 3/4” clearance from the drive axle boot. Heat wrap and a custom heat shield

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Re: Andy's 91' 80q
Posted: Wed Feb 18, 2026 7:50 pm
by rennenmsports
Let’s see if 16ga 304ss amazon stuff holds up for the flex pipe back

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Re: Andy's 91' 80q
Posted: Sat Feb 21, 2026 8:29 am
by rennenmsports

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Re: Andy's 91' 80q
Posted: Sun Feb 22, 2026 4:59 pm
by rennenmsports

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Got the downpipes all welded up. Had to take a little off the subframe pinch weld. Doing the heat shields and secondary support bracket now
Re: Andy's 91' 80q
Posted: Sat Feb 28, 2026 9:15 am
by rennenmsports
1.9 bar / 13.5 psi or 2.2 bar / 17.5 psi?
That is the question
If I was to guess the intake hose at the throttle body popping off is its weakest link.
Bonding silicone to aluminum:
Permabond
Polyolefin primer
Permabond cyanoacrylate 105

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Re: Andy's 91' 80q
Posted: Thu Mar 05, 2026 1:04 pm
by rennenmsports

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Re: Andy's 91' 80q
Posted: Fri Mar 06, 2026 9:07 am
by rennenmsports

there’s only 3 cat back exhaust mounting points
I’m gonna have to fix that. There’s not much room with a 3” pipe in a 2” ditch. I’m debating about just bolting the flex pipe back straight to the car with rubber isolators
Re: Andy's 91' 80q
Posted: Fri Mar 06, 2026 1:01 pm
by dspl1236
I bypassed going up and around the diff on mine. It is now the first thing that hits anything. I plan on redoing mine to snake around. Your image looks like what I had I mind. 45deg over the CV. I kinda gave up fitting it correctly. Even the same box of amazon pipe but in 2.5

Hanger situation sucks. My rear oem muffler broke at the welds, so it was my quick fix.

I am not happy with my setup.

Re: Andy's 91' 80q
Posted: Sat Mar 07, 2026 8:33 am
by rennenmsports
dspl1236 wrote: Fri Mar 06, 2026 1:01 pm
I bypassed going up and around the diff on mine. It is now the first thing that hits anything. I plan on redoing mine to snake around. Your image looks like what I had I mind. 45deg over the CV. I kinda gave up fitting it correctly. Even the same box of amazon pipe but in 2.5

Hanger situation sucks. My rear oem muffler broke at the welds, so it was my quick fix.

I am not happy with my setup.
Yes. A 3” 45 degree slightly cocked will go right through with 2 bolts flanges on both ends to get it out without lowering the subframe or axle. There’s only 1/4” of clearance in a bunch of spots going through though. I’m currently figuring out the mounting situation
Re: Andy's 91' 80q
Posted: Sat Mar 07, 2026 8:37 am
by rennenmsports
There’s room for a muffler under the passenger side rear seat
I’m debating about making one with a little copper and/or other crazy metals to get a different exhaust tone. Already going to have a Flowmaster under the trunk
Re: Andy's 91' 80q
Posted: Sat Mar 07, 2026 5:12 pm
by rennenmsports

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Those -10 push lock hose is too close to the exhaust
Gonna have to make them hard lines up to the bellhousing
Re: Andy's 91' 80q
Posted: Tue Mar 10, 2026 9:11 am
by rennenmsports

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I think I’m going to put this under the passenger side rear seat. Attempting to quiet it down on top of the Flowmaster under the trunk
Re: Andy's 91' 80q
Posted: Thu Mar 12, 2026 3:06 pm
by rennenmsports

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Flowmaster super 44 3” muffler under the trunk
Biggest one they had that fits.
Re: Andy's 91' 80q
Posted: Fri Mar 20, 2026 5:16 pm
by rennenmsports

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It came

Re: Andy's 91' 80q
Posted: Fri Mar 20, 2026 6:43 pm
by rennenmsports

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It fits