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  #25  
Old 08-29-2014, 11:04 AM
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Re: SRT exhaust manifold install today!

Had a small cricket squeak and a VERY bad sounding exhaust leak when pushing it hard into right turns. Turns out the driver side flange was a little lose, tightened some bolts and good to go. Banged on one of the cat back hangers and the cricket squeak disappeared. Easy day. Took he two guys that did the work out on a ride while we were diagnosing the noises and they were shocked at the power of what we put together. Again, I want to stress the fact while the manifolds provided a significant difference in power, it was magnified once I got my CMR tune files updated to account for and take full advantage of the new manifolds.
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  #26  
Old 08-31-2014, 11:35 AM
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Re: SRT exhaust manifold install today!

So I keep having to re tighten the flange bolts (at the manifold to mid pipe connection) about every other day. I'm just using a bolt and washer combo from the shop, maybe I'll try a lock washer in there too. I don't want to torque them too bad as stripping the threads on the manifolds would be a VERY painful fix. I think I read somewhere on another thread that the SRTs have some sort of special bolts with springs on them, anyone have any more insight on that? I'll swing by the dealership tomorrow and try and get a part number
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  #27  
Old 08-31-2014, 07:26 PM
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Re: SRT exhaust manifold install today!

Good to see that it's working good and you're happy with the results. You've almost got yours like mine now, except my headers were customs, and I've got a 2 degree advanced aftermarket cam and 6.1 valve train. The headers and the cam, by far, make the biggest differences. On fuel economy, I only gained maybe a mile per gallon in town (cam's torque range is higher than the stock cam), but on the highway I've gotten as high as 24.4 mpg. My "normal" average on the highway is 22-23 mpg, running in 4th gear at 63-67 mph. With the Superchips Advanced Trans. Tuning App. I have mine set to shift from 4th to 5th at about 70 mph. I also run a BBK 90mm throttle body and a 25% underdrive crank pulley. Like you said, it's all definitely worth it, and I am sure by now they've paid for themselves, if not in increased fuel economy, for sure in the fun category. With all the trips I've taken since the mods., I have never gotten less than 20 mpg for a total trip, including in town, mostly mountain driving, and twice down to sea level. Also, big difference between my normal 2800-4000 ft. elevation driving and sea level. Much more power, throttle response and MDS time at sea level.

Keep us posted on your fuel economies and future mods. Fun stuff, isn't it??
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05 LX/RT & 06 WK/GCO, modded similarly, MDS "ON" Light, Vortex Gens, Debadged, DashHawk, BT Catch Can, SRT CAI W/Add Air Inlet, K&N Filter, Sonnax Trans Press Booster, SC Tuner W/Adv Trans Tuning App, DS Tuner, Cust tube headers w/3 in. catback, Bilsteins, SRT frt/rear bumpers, Eibach SRT Lwr Sprgs & Sways, FRI Sidewinder Cam Adv 2*, 6.1 valvetrain, SLP 25% UD Pulley, BBK 90mm TB, SOS Coils/.060 plug gaps. 20 in. SRT Reps.
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  #28  
Old 09-02-2014, 11:41 PM
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Re: SRT exhaust manifold install today!

So I swung by the dealership today and found out there are special self locking nuts that are supposed to be used on the manifold flanges. Whoops! The manifolds themselves are threaded but clearly its not enough to keep the connection tight. I'm going to keep my foot out of the bottom end of my throttle for the next few days until I can get it back to the shop. Guy told me he wouldn't charge me a thing to get the nuts on there thank God, getting them on there is going to be a MAJOR pain.
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  #29  
Old 09-07-2014, 08:08 PM
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Re: SRT exhaust manifold install today!

Well the OEM SRT flange nuts and bolts lasted all of a day. Reason being is there is really no good way to get at the top of the nuts to tighten them and even if I did it would still be torquing the bolt to the manifold (since manifold is threaded) vice torquing the mid pipes to the manifold. This is getting to be a major PITA. (Still glad I did it though). So the next plan is to drill out the threads in the manifold, tack weld a "flag" to the top of a hardened steel stud and drop the stud through the top of the manifold connector, the flag will keep the stud from spinning when I go to torque the nut to it from the bottom of the mid pipe flange connector. At least that's the theory. Still on graveyard shift so I'll stop by the shop on my way home from work in the morning. I think they're getting tired of seeing me but at least they're relatively understanding and have been helping me through the final tweaks. I'm hoping to have it done by Wednesday so I can hit the local drag strip and see what I can get for times. Fingers crossed, more to follow...
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  #30  
Old 09-09-2014, 09:57 AM
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Re: SRT exhaust manifold install today!

So it looks like the dealership boned me on the bolts. The SRT manifolds actually need studs that bolt right into the manifold. At the shop now, torqued the passenger side flange a bit too tight and now it won't seal. FML this is getting old. Fingers crossed this is the final chapter in my manifold swap thread. Really want to run it at the drag strip tomorrow...
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  #31  
Old 09-10-2014, 03:39 PM
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Re: SRT exhaust manifold install today!

FINALLY, looks like I'm all squared away! Just reset my tune, have the MDS turned off, going to take out the spare tire and jack, have about 2/5ths a tank of gas... And we're heading to the track. Let's see what this thing can do! Wish me luck!!!
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  #32  
Old 09-10-2014, 10:13 PM
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Re: SRT exhaust manifold install today!

Best run of the night was a 14.14 @ 97MPH, strangely enough that was the first run and I had no clue. That was with ESP off and manual shifting. Kinda upset about the other runs, got 14.3 with it in drive and a 14.6 when I learned that if you leave it in first with ESP off the computer won't shift it for you. Whoops! Was really hoping to break into the 13s but a 14.14 is still respectable...
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  #33  
Old 09-12-2014, 01:16 PM
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Re: SRT exhaust manifold install today!

@#$%&+*!? So it only took two days for the fabricated flanges to leak again. This is killing me. Its not bad enough to throw a code (yet) but this is not going to be OK long term. After calling numerous shops around the country, I spoke with a guy named Bruce at High Horse Performance out in Delaware and he said he's supposed to do a SRT header install Wednesday and he would chop off the flanges from the stock SRT mids and ship them to me!!! Fingers crossed this guy doesn't back out of his install. I think this is the only way to get the manifold flanges to not leak long term. I haven't had the heart to call my local shop yet, figured I'd wait till I have the parts in hand. Say a prayer for me guys!
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  #34  
Old 09-17-2014, 03:40 PM
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Re: SRT exhaust manifold install today!

Hey, Luke, did you get the new flanges yet?
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  #35  
Old 09-17-2014, 03:56 PM
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Re: SRT exhaust manifold install today!

Made the call yesterday and they had FOUR SRT jeeps in their shop! Guy offered me the whole mid pipe set for $200; turned it down as I had read numerous threads on fitting issues with those mids on 4X4 WKs. So instead, the guy offers me the chopped flanges from the cat forward for only $20! I feel like I found a unicorn horn for pennies on the dollar. Hopefully they'll be in by weeks end
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