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post #1 of 39 (permalink) Old 06-02-2009, 06:23 PM Thread Starter
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New stainless exhaust on turbo SC

Got this new exhaust system (from the turbo downpipe to the rear bumper) made a couple weeks ago to replace the leaking mild steel exhaust that was done half azz by those jokers at Forced Fab who built the turbo system.

When removing the old exhaust the guy making the stainless stuff noticed that where the old exhaust went from single 3.5" diameter pipe to dual 3", they used a 3" X 3" X 3" Y instead of a 3.5" x dual 3" so it was choked down to 3" at the merge. The new system should be flowing a lot better and the car even feels a little stronger.














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1991 SC AOD 4.2..2.3 Whipple..........10.910 @ 125.61
2016 SRT Challenger Hellcat..................707HP/650TQ
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post #2 of 39 (permalink) Old 06-02-2009, 06:34 PM
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I've gotta say, that is a beautiful exhaust. All of those welds look very well done - the guy knows his stuff!
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post #3 of 39 (permalink) Old 06-02-2009, 11:50 PM
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Beautiful! So....how much did it cost ya? Gotta go now and wipe the drool off my aged chin.

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post #4 of 39 (permalink) Old 06-03-2009, 04:08 AM
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Top quality work, this is gonna make a big difference if your old system sucked.

Spinning pies like wheels.

DD driving my 20 year old project

Now with new ball joints...again
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post #5 of 39 (permalink) Old 06-03-2009, 06:33 AM
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Very nice David! I like the way you cut the rear bumper to recess the mufflers and tips to keep everything tucked up under the car nice and clean.

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post #6 of 39 (permalink) Old 06-03-2009, 06:49 AM
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awesome welds, nice set up, wish mine look like that
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post #7 of 39 (permalink) Old 06-03-2009, 10:49 AM Thread Starter
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Originally Posted by Trunk Monkey View Post
Very nice David! I like the way you cut the rear bumper to recess the mufflers and tips to keep everything tucked up under the car nice and clean.
Thanks...rear bumper cover wasn't cut, that's how it looks stock on the 89-93 SC.

David

1991 SC AOD 4.2..2.3 Whipple..........10.910 @ 125.61
2016 SRT Challenger Hellcat..................707HP/650TQ
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post #8 of 39 (permalink) Old 06-03-2009, 10:55 AM Thread Starter
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Beautiful! So....how much did it cost ya? Gotta go now and wipe the drool off my aged chin.
About $1750. Stainless materials are pricey, but the labor ($65 per hour) for doing all the cutting, tacking, removing, final welding, reinstalling, repeat...over and over is what cost the most. The 3" non chambered stainless mufflers are not included in that price and were reused from the original exhaust.

David

1991 SC AOD 4.2..2.3 Whipple..........10.910 @ 125.61
2016 SRT Challenger Hellcat..................707HP/650TQ
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post #9 of 39 (permalink) Old 06-03-2009, 12:48 PM
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You know, not to change the subject here, as the new exhaust system is almost too pretty to use....but the first thing I noticed is that you don't have all of the IRS 'fixes' plastered all over the IRS subframe. Is this in the drag car in your sig?

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post #10 of 39 (permalink) Old 06-03-2009, 01:55 PM Thread Starter
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Originally Posted by EvilMooseofDoom View Post
You know, not to change the subject here, as the new exhaust system is almost too pretty to use....but the first thing I noticed is that you don't have all of the IRS 'fixes' plastered all over the IRS subframe. Is this in the drag car in your sig?
Yes, it's the same car. It's not really a drag car, because I only take it to the track about once a year just to see what it will do. I don't have a cage or most of the other stuff required for the ET and MPH the car is capable of running. You are also correct about there not being many mods to the suspension or the IRS.

I'm running with stock shocks, springs, halfshafts ect. The Ford trac-loc diff was replaced with an Aburn Pro limited slip diff and stock 3.27 gears were replaced with factory 3.73 gears. All the bearings and seals were replaced and I did install a new set of factory style rubber mounting bushings when the pumpkin was installed.

If using an automatic transmission, the stock stuff holds up to a lot more power than most people think. The non locking converter provides a little more cushion against the type of shock loading that causes the IRS damage. It's only a concern if launching the car off the trans brake with a set of slicks on a sticky track. So far nothing has broken, but the most I've launched with is 6 pounds of boost. No wheel hop, and it tracks very straight when the tires spin....even when smoking the tires from a 70 mph roll

With all the changes I've made to the car in the past 9 months, it's much quicker than the numbers in my signature indicate. I'm 98% certian that it will run high 10s as driven on the street with 14.5 pounds of boost, and if nothing breaks ...high 9s with 23 pounds and race gas.

David

1991 SC AOD 4.2..2.3 Whipple..........10.910 @ 125.61
2016 SRT Challenger Hellcat..................707HP/650TQ
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post #11 of 39 (permalink) Old 06-03-2009, 05:03 PM
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holy balls thats freakin awesome!

If your exhaust tip is larger than your cylinder bore, then you are a Ricer.
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post #12 of 39 (permalink) Old 06-03-2009, 05:48 PM
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Quote:
Originally Posted by David Neibert View Post
Yes, it's the same car. It's not really a drag car, because I only take it to the track about once a year just to see what it will do. I don't have a cage or most of the other stuff required for the ET and MPH the car is capable of running. You are also correct about there not being many mods to the suspension or the IRS.

I'm running with stock shocks, springs, halfshafts ect. The Ford trac-loc diff was replaced with an Aburn Pro limited slip diff and stock 3.27 gears were replaced with factory 3.73 gears. All the bearings and seals were replaced and I did install a new set of factory style rubber mounting bushings when the pumpkin was installed.

If using an automatic transmission, the stock stuff holds up to a lot more power than most people think. The non locking converter provides a little more cushion against the type of shock loading that causes the IRS damage. It's only a concern if launching the car off the trans brake with a set of slicks on a sticky track. So far nothing has broken, but the most I've launched with is 6 pounds of boost. No wheel hop, and it tracks very straight when the tires spin....even when smoking the tires from a 70 mph roll

With all the changes I've made to the car in the past 9 months, it's much quicker than the numbers in my signature indicate. I'm 98% certian that it will run high 10s as driven on the street with 14.5 pounds of boost, and if nothing breaks ...high 9s with 23 pounds and race gas.

David
Roger that. I don't have plans to install a 5-speed in my car, but I was curious as to how much 'abuse' the IRS can handle. I also am going to run a non-locking AOD convertor, but I don't plan on having anything that radical under the hood. Thanks for the information, sir.

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post #13 of 39 (permalink) Old 06-03-2009, 06:46 PM
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Very nice! I bet it really makes you grin if it runs as good as it looks!

Mods? Do the ones in the garage waiting to go on the car count?

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post #14 of 39 (permalink) Old 06-03-2009, 08:34 PM
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Are you bringing this one or the other one to Joliet?

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post #15 of 39 (permalink) Old 06-04-2009, 02:46 AM
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This is the fastest semi stock appearing SC around.

Spinning pies like wheels.

DD driving my 20 year old project

Now with new ball joints...again
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post #16 of 39 (permalink) Old 06-04-2009, 12:56 PM Thread Starter
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Are you bringing this one or the other one to Joliet?
Keith,

If I can't get the engine cooling issues resolved on the new 4.3 motor that was recently installed in my 91 SC, then yes I'll be bringing this car to race in the same class.

Since it's not track legal for anything quicker than 11.5, I'll just use a set of the MT drag radials I've got mounted on Cobra Rs instead of lugging the Bogarts and real race tires.

David

1991 SC AOD 4.2..2.3 Whipple..........10.910 @ 125.61
2016 SRT Challenger Hellcat..................707HP/650TQ
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post #17 of 39 (permalink) Old 06-04-2009, 01:03 PM
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very nice work David.

Have you got a sound clip yet?

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post #18 of 39 (permalink) Old 06-04-2009, 01:05 PM Thread Starter
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Very nice! I bet it really makes you grin if it runs as good as it looks!
It actually runs a lot better than it looks, and yes very big grin everytime I drive it. BTW, I drove it to work this morning.

Quote:
This is the fastest semi stock appearing SC around.
Here's a picture of the exterior....it looks like your average 14 second SC.





David

1991 SC AOD 4.2..2.3 Whipple..........10.910 @ 125.61
2016 SRT Challenger Hellcat..................707HP/650TQ

Last edited by David Neibert; 06-04-2009 at 04:17 PM.
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post #19 of 39 (permalink) Old 06-04-2009, 01:08 PM Thread Starter
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very nice work David.

Have you got a sound clip yet?
Nope....One of these days I'll learn how to upload a video to youtube.

David

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2016 SRT Challenger Hellcat..................707HP/650TQ
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post #20 of 39 (permalink) Old 06-04-2009, 01:12 PM
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Nope....One of these days I'll learn how to upload a video to youtube.

David
Take a vid, e-mail it to me, I'll host it for you.
[email protected]

if that doesn't work, we can try something else.....if you're interested.


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rest in peace JL
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post #21 of 39 (permalink) Old 06-04-2009, 03:40 PM
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Wow. Very nice fitment and welding there.
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post #22 of 39 (permalink) Old 06-04-2009, 05:31 PM
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Great.....another thing to try to keep clean and shiny.

Badass all the way!

Delete my account.
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post #23 of 39 (permalink) Old 08-25-2009, 01:07 PM Thread Starter
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Originally Posted by David Neibert View Post

With all the changes I've made to the car in the past 9 months, it's much quicker than the numbers in my signature indicate. I'm 98% certian that it will run high 10s as driven on the street with 14.5 pounds of boost, and if nothing breaks ...high 9s with 23 pounds and race gas.

David
Just to follow up on this prediction. I brought the car to Joilet last month and raced in the NMRA true street class. Since I was only legal to run 11.50 I didn't try making a full pass until the 3rd run after the street cruise. In full street trim weight (aprox 4250 lbs) with a hot motor on 275-40-17 MT ET steet radials it ran 10.82 @ 130 mph. Would have went a little faster, but ran out of rpms and was on the rev limiter about 150 ft before the finish line.

Here are a few pictures Keith (aka Vic Rattlehead) took.

http://www.sccoa.com/forums/attachme...8&d=1248800221

http://www.sccoa.com/forums/attachme...5&d=1248800553

http://www.sccoa.com/forums/attachme...1&d=1248800221

http://www.sccoa.com/forums/attachme...0&d=1248800221

This was with about 15.5-16.0 pounds of boost. Looking forward to seeing what it will do with the Bogart wheels, larger diameter slicks and skinnys with about 24 pounds of boost.

David

1991 SC AOD 4.2..2.3 Whipple..........10.910 @ 125.61
2016 SRT Challenger Hellcat..................707HP/650TQ
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post #24 of 39 (permalink) Old 08-25-2009, 01:58 PM
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car looks good.

and I would really like to know what it runs, once the wick is turned up!

Nick......................I'm back!!!
May you fly low and fast
rest in peace JL
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post #25 of 39 (permalink) Old 08-25-2009, 02:00 PM
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Wow!!
Lools Like Mine w/ the 3inch..
But I Ran It Single Out The Back

MISSILE DRIFTER
..
WeldedDiff-JetPerformanceChip-K&N/Intake-IntraxDropSprings-KYBGR2RearShocks-Single Exhaust-WireSet/Plugs-Gutted-n' Driftable..
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post #26 of 39 (permalink) Old 08-25-2009, 02:05 PM
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How in the heck are you keeping head gaskets in it?

BYE2YOU
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post #27 of 39 (permalink) Old 08-25-2009, 02:05 PM
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he welded the heads to the block..


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rest in peace JL
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post #28 of 39 (permalink) Old 08-25-2009, 02:08 PM
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There Arnt Any Left..
Hahahahaha!!

MISSILE DRIFTER
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WeldedDiff-JetPerformanceChip-K&N/Intake-IntraxDropSprings-KYBGR2RearShocks-Single Exhaust-WireSet/Plugs-Gutted-n' Driftable..
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post #29 of 39 (permalink) Old 08-25-2009, 02:08 PM
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David..
You Should Come Drift At MM Sometime..

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post #30 of 39 (permalink) Old 08-25-2009, 04:46 PM Thread Starter
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How in the heck are you keeping head gaskets in it?
I've got a Dart block, modified AFR205 heads with 1/2" APR studs, Cometic MLS gaskets, and couple coats of copper spray on the block side torqued to 110 ft lb. But what really keeps the heads on, is the Fast XFI standalone engine managment and a very conservative tune.

David

1991 SC AOD 4.2..2.3 Whipple..........10.910 @ 125.61
2016 SRT Challenger Hellcat..................707HP/650TQ
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