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So.......the old APS TT setup is FINALLY getting an update

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Old 06-23-2019, 10:51 AM
  #101  
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While waiting on the tuner, figured I'd go ahead and replace the rear section of my exhaust, as the mufflers had puked their guts. Off with the old, on with the replacements. Except they refuse to clamp down now. Great.
Old 06-23-2019, 02:52 PM
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These old mufflers were absolutely trashed.



Tips too. Absolutely caked in carbon and pitting.


Looking at the replacements, even with the car tuned right and not fouling things up nearly as bad, I'm not expecting them to live a long time. If they do puke their innards, I'm going to cut the floor and move to a C6 exhaust on the car.
Old 06-23-2019, 04:50 PM
  #103  
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Got a buddy to come by and tack weld everything into place then we clamped it down. Pretty happy with the outcome.


Old 06-24-2019, 11:18 AM
  #104  
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Too late now, but a trick you can use is to clamp a board to the tips to keep them perfectly aligned then use a floor jack to jack them in place exactly where you want them... then torque/weld everything.
Old 06-24-2019, 07:15 PM
  #105  
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Originally Posted by Tool Hoarder
Too late now, but a trick you can use is to clamp a board to the tips to keep them perfectly aligned then use a floor jack to jack them in place exactly where you want them... then torque/weld everything.
Ha! I definitely didn't get them that straight by eyeballing it.


You can see the wood is being supported by a jack. The blue tape I measured to be on centerline side to side from each edge.
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Old 06-26-2019, 07:58 PM
  #106  
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Well for the past couple of weeks I've been trying daily to get something set up with the tuner whom I want to use for this setup. Unfortunately, actually making contact is spotty and has lead nowhere so far. I'm out of town on vacation Saturday for nearly a week, then July 7th again for work for a month. Looks like nothing is going to happen until then. I'm bummed, I really wanted to fire the car up and get it checked over before leaving.
Old 07-02-2019, 11:30 PM
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Good news. Got a firm date scheduled with my tuner. Bad news is it's August 16th. Ok news is nothing was going to happen before I get home on August 3rd, so I gave myself a couple of weeks to go over it really good one more time before getting a baseline tune done.
Old 07-03-2019, 10:43 AM
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Was the exhaust an old Big 3?
Old 07-03-2019, 12:26 PM
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Originally Posted by slow ride
Was the exhaust an old Big 3?
Yes in terms of sheer age. No in the fact it had maybe 5-7k miles on it.
Old 07-03-2019, 02:41 PM
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I made a lot of power through mine (around 1000whp), but it's too quiet in the turbo noise/lope area and too loud in the drone stuff like 1500 and lower. I'm going to cut mine open and try something different. Did LG charge much for the new mufflers?

Last edited by slow ride; 07-03-2019 at 02:48 PM.
Old 07-03-2019, 02:44 PM
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Originally Posted by slow ride
I made a lot of power through mine (around 1000whp), but it's too quiet in the turbo noise/lope area and too loud in the drone stuff like 1500 and lower. I'm going to cut mine open and try something different.
This one was only living in the mid 800's but I think the tune was really bad and it just destroyed the inside of the mufflers. Hoping the replacements dare better. If these give up the ghost I'm going to do the C6 exhaust and mod the floor.

*Edit* @slow ride I just saw the question on the mufflers. I think I paid $350 for them as a courtesy from LG after I showed them pics of what was going on. I got new mufflers and tips.

Last edited by Fastbird; 08-08-2019 at 07:29 AM.
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Old 08-08-2019, 07:36 AM
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Ok, so after a six week hiatus between Vacation and some training work in South Carolina, I'm back on it. Yesterday was my first day off and the 16th is fast approaching (we're actually towing the car out on the 15th). Just cleaning up minor stuff at this point, but what I wanted to take care of since I have a little time was the banged up cowl.

So, yesterday I picked up some .032 aluminum sheet and went to town with what I had to work with. And so far, I'm pretty happy with the result (for not having a brake, or any actual metal forming tools).


I'm ok with the gnarly looking contouring because once painted black and panel bonded into place, it really won't be seen. However......because I feel like I may end up putting some aftermarket rails on the car at some point (I have a gut feeling the 97-98 rails aren't going to support what the car will be capable of, but I'm going to see what they do)........I need to keep a way to get some clearance again. Talked it over with a buddy last night, and I may redo the channel on the smaller complete patch and just use the aluminum for the front channel, then use that soft roof flashing where all the contouring is. That way even once bonded, if I need to make some room in the future I should be able to within reason.
Old 08-08-2019, 12:19 PM
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Mind if I ask who is tuning the car? Everything looks great man.
Old 08-08-2019, 01:44 PM
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Originally Posted by mykream
Mind if I ask who is tuning the car? Everything looks great man.
Justin @ IMC (Indiana Muscle Car).
Old 08-08-2019, 02:59 PM
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I will be curious how the little sumps help you out. Did you have any smoking issues without them at all? If you look at my build you can see my kit is a bit like a mix of APS and TTIX ideas and I get a little puff of smoke on off throttle transitions from time to time. Tilting turbos is not really ideal, but at the time it worked out so I did it.
Old 08-08-2019, 05:22 PM
  #116  
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I was getting some smoking coming off of higher boost when I snapped the throttle shut, and sometimes after it's sat a while on initial cold start. The sumps are more for the cold start stuff, and the PCV delete and breather tank were hopefully going to address the high vacuum situations coming off higher boost. The motor isn't that old (it went in back in 2009 but only has......maybe 15K miles I think, and it was built for the boost.
Old 08-08-2019, 07:46 PM
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The bonding has commenced. Painting it afterwards obviously.


Also, I didn't like how loose the meth nozzle was before just being pushed into the coupler. So I widened the lower part of the hole to a very tight fit to the outer diameter of the bend and screwed the nozzle into it from the inside. Now it's FIRMLY in place and shouldn't be any risk of the pressure forcing it out.


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Old 08-09-2019, 08:17 PM
  #118  
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Pretty happy with this. Not that noticeable with everything in place, but I'm still going to paint it. Unfortunately, the cowl is cracked and warrants replacing. It's all super stiff again and ready to go at least.



Old 08-12-2019, 10:13 AM
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Originally Posted by Fastbird
Pretty happy with this. Not that noticeable with everything in place, but I'm still going to paint it. Unfortunately, the cowl is cracked and warrants replacing. It's all super stiff again and ready to go at least.


Nice and simple fix. I may do something similar to my cowl except with a trapdoor of some sort so I can open it up and change the oil pressure sender through the cowl.
Old 08-12-2019, 12:03 PM
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Originally Posted by Turpid porpoise
Nice and simple fix. I may do something similar to my cowl except with a trapdoor of some sort so I can open it up and change the oil pressure sender through the cowl.
I would have done the same but my OPS is on the turbo distribution block next to the passenger head so it's out in the open anyway.


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