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Ultraman | Ultra's new exhaust system setup (Updated) | ||
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Here are some pics of the system as it is being built. Everything is in place and tack welded. The system will be made so that it can be removed without having to cut anything.
Here is how it looks coming out of the headers. These are the heat shields that we put on to protect the tranny. Hope that's enough. X pipe On back to the stock mufflers. What the engine bay looked like after working on it to make it look better. When it's all done I will see how it sounds. I have no idea at this point. I think they are doing a good job on it. More later...... |
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Posted on: 2011/4/13 23:19
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jonszr1 | Re: Ultra's new exhaust system setup | ||
Senior Guru
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wow it looks like they are doing a good job .please email me as soon as you try her out.my email is williemac57@hotmail.com .are you going to dyno her again to see what the improvement is ?
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Posted on: 2011/4/13 23:37
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i have a blast playing with my 4 babies 2 zr1s and 2 mustangs 68 coupe with a jon bennit 408 art car fully rollered c4 with a gearvendors over drive .88 mustang built by my kids with a ported lt5 and a bill boudreau blue printed zf 6 spd. with these 4 ... |
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pianoguy | Re: Ultra's new exhaust system setup | ||
Guru Emeritus
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Lookin' good, Marcus - hope you can get us a sound clip soon!
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Posted on: 2011/4/14 0:28
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Ultraman | Re: Ultra's new exhaust system setup | ||
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Yes I will be heading to the Dyno to see if we gained a bit as soon as the rush is over. I will keep you posted.
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Posted on: 2011/4/14 0:38
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bogus | Re: Ultra's new exhaust system setup | ||
Grand Imperial Pooh-Bah
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Yes, Marcus! Dyno. I would love to see what the numbers look like. Did you baseline before?
I wonder what a tune would do? Or should we wait until the next phase is complete? oh, so many questions... |
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Posted on: 2011/4/14 0:40
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Ultraman | Re: Ultra's new exhaust system setup | ||
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The baseline is in a thread called Ultra's Dyno.....something. The best run was right at 200 hp at the rear wheels. Hope to have Mick help with tune but may wait until phase 2 next winter.
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Posted on: 2011/4/14 0:50
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bogus | Re: Ultra's new exhaust system setup | ||
Grand Imperial Pooh-Bah
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Ah, excellent.
I am real curious how an otherwise stock L98 responds to an exhaust upgrade, or, how restrictive is the stock intake... |
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Posted on: 2011/4/14 0:54
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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Ultraman | Re: Ultra's new exhaust system setup | ||
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To do it right I should dyno after the intake upgrade and then again after the tune.
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Posted on: 2011/4/14 1:09
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bogus | Re: Ultra's new exhaust system setup | ||
Grand Imperial Pooh-Bah
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Agreed.
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Posted on: 2011/4/14 1:18
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rklessdriver | Re: Ultra's new exhaust system setup | ||
Senior Guru
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That is looking real nice.
Should be a big gain for an L98 if you orginally dyno'd with the single cat/Y-Pipe exhaust system. Will |
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Posted on: 2011/4/14 1:43
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Matatk | Re: Ultra's new exhaust system setup | ||
Webmaster
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Looks good so far! What are the final details as far as cat and x-pipe selection and pipe diameter?
Did the shop provide the band clamps? I think I'm gonna try those on my next set up and need a good source. Matthew |
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Posted on: 2011/4/14 1:50
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biggrizzly | Re: Ultra's new exhaust system setup | ||
2011 Memorial Day Car Show Winner!
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Looks great! Almost identical to my configuration.
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Posted on: 2011/4/14 2:45
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flyboy | Re: Ultra's new exhaust system setup | ||
Elite Guru
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Looking good!
Sano engine compartment too. |
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Posted on: 2011/4/14 2:55
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Ultraman | Re: Ultra's new exhaust system setup | ||
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Thanks guys. Matt I will check on the clamps for you. The shop did provide them. Out of the headers into 3" cats then down to 2.5" thru the X pipe on back to the stock diameter pipes to the mufflers.
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Posted on: 2011/4/14 3:00
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JeffK | Re: Ultra's new exhaust system setup | ||
Elite Guru
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Looking good. Hope it sounds good too!
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Posted on: 2011/4/14 11:09
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chaos | Re: Ultra's new exhaust system setup | ||
Guru Newb
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Nice!
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Posted on: 2011/4/14 14:01
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JeffK | Re: Ultra's new exhaust system setup | ||
Elite Guru
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What are the advantages of the X pipe? just curious.
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Posted on: 2011/4/14 14:57
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Ultraman | Re: Ultra's new exhaust system setup | ||
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Jeff from what I read it is for sound and performance. Lot of C5 and C6 guys use the 3" and like the sound.
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Posted on: 2011/4/14 15:36
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bogus | Re: Ultra's new exhaust system setup | ||
Grand Imperial Pooh-Bah
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Quote:
the x-pipe is designed to balance pulses from left/right. As flow comes down the pipe, it crosses the other and speeds up the scavaging. This can also remove resonance. |
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Posted on: 2011/4/14 17:04
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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Ultraman | Re: Ultra's new exhaust system setup | ||
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I found this on the X pipe on the internet and it backs up what Andy is saying.
Since V8's fire unevenly, exaust exits in pulses rather than a steady flow. While one pipe is filed with pressure the other is relitivly pressurless but by conecting the two pipes in a siamese pattern it allows the exhaust to pass through the pipe quicker. This improved breathing will increase horsepower. @Matt: Those SS clamps that they are useing were bought at CarQuest parts store here in town. So I am thinking NAPA or any of them would have them. The box did not have a logo or manufacturer that I could see, so they probably came from China. |
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Posted on: 2011/4/14 20:02
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JeffK | Re: Ultra's new exhaust system setup | ||
Elite Guru
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Very interesting to know. Thanks guys.
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Posted on: 2011/4/14 22:18
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Ultraman | Re: Ultra's new exhaust system setup (update) | ||
2015 Memorial Day Car Show Winner!
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The car is finished and I went down to listen to it and I liked it. There is a burble as it idles but does not have the deep rumble some folks like. When you rev it up you get more of a a..........I am at a loss for words here. Maybe a raspy high performance sound. Any way it was and still is raining like a cow pissing on a flat rock so no test drive till tomorrow.
Here are a couple more pics and I will try to figure out how to get a sound bite when I get some time. Just standing there next to it, I really like the way it sounds. The real test will be on the road. |
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Posted on: 2011/4/14 23:15
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2010 Grand Sport Coupe Gone but not forgotten... Vote DeSantis in 2024.... Make the IRS go away... |
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pianoguy | Re: Ultra's new exhaust system setup | ||
Guru Emeritus
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Looks like a real nice, clean install!
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Posted on: 2011/4/15 0:53
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_________________
1996 LT4 �Before you criticize someone, you should walk a mile in their shoes. That way when you criticize them, you are a mile away from them and you have their shoes.�- Jack Handey |
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Matatk | Re: Ultra's new exhaust system setup (update) | ||
Webmaster
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Marcus - thanks for checking on the clamps. I did find them at a few parts stores online. They are usually called "band clamps" and sometimes "seal clamps" and run around $8 each.
As far as the sound, I think most guys want a cam overlap lump but can't get it from the stock cam, so they settle for loud and think it sounds good. I call bs. I'm sure your system is gonna sound good. I'd like to hear some clips. |
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Posted on: 2011/4/15 2:12
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_________________
2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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jonszr1 | Re: Ultra's new exhaust system setup (Updated) | ||
Senior Guru
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glad you like the sound , i think it will be just the right sound, quiet when cruizin and nice bark when your on it .
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Posted on: 2011/4/15 4:59
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_________________
i have a blast playing with my 4 babies 2 zr1s and 2 mustangs 68 coupe with a jon bennit 408 art car fully rollered c4 with a gearvendors over drive .88 mustang built by my kids with a ported lt5 and a bill boudreau blue printed zf 6 spd. with these 4 ... |
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