Custom exhausts
March-15th-2002, 10:42 AM
#1
Patriotic Protege5
Thread Starter
Join Date: Dec 2001
Location: Hampton, VA
Posts: 908
Custom exhausts
Per PseudoRealityX recommendation I am looking into having a 2" custom exhaust. I also have read in SCC that 2" would be the best for mild NA 2.0L. I can't find anybody local that will do mandrel bends for the piping and I don't want crush or hydraulic bends as they reduce the flow (which is the whole point of replacing piping in the first place). I was told by a few local shops that a "good" bending machine would not crush the pipe at all. If this was true the machine would be a mandrel bender. Most of them have never heard of mandrel bending. At least thats what they tell me. I was looking into getting pre mandrel bent sections of piping from magnaflow but their website only advertises 2.5" and 3". http://www.magnaflow.com/03hardware.htm
I called them and they do sell 2.25" bends as well in stainless steel. What would you guys recommend? Should I go with 2.25" or should I look out of my area for this? If anyone in the VA, and DC area knows of a shop that does mandrel bending please let me know. Or if you know of another company that sells these pre bent sections let me know. I am not interested in the Bosal because I am not a fan of the muffler that comes with it. Just my opinion though. Sorry this is so long...its a lot of information to convey.....
I called them and they do sell 2.25" bends as well in stainless steel. What would you guys recommend? Should I go with 2.25" or should I look out of my area for this? If anyone in the VA, and DC area knows of a shop that does mandrel bending please let me know. Or if you know of another company that sells these pre bent sections let me know. I am not interested in the Bosal because I am not a fan of the muffler that comes with it. Just my opinion though. Sorry this is so long...its a lot of information to convey.....
Last edited by azrakain; March-15th-2002 at 10:52 AM.
1st gen pipe size
March-15th-2002, 05:47 PM
#4
The Horns of Jericho
Join Date: Feb 2002
Location: Southern Californ-I-A (909)
Posts: 320
Originally posted by PseudoRealityX
A lot. without putting it on a dyno i cant say EXACTLY, but DEFINATELY noticeable. 2.5" is WAY TOO big for these engines...that would be a bad diameter for someone with a low boost turbo or supercharger, or running a healthy shot of Nitrous.
A lot. without putting it on a dyno i cant say EXACTLY, but DEFINATELY noticeable. 2.5" is WAY TOO big for these engines...that would be a bad diameter for someone with a low boost turbo or supercharger, or running a healthy shot of Nitrous.
I had the impression that 2.25 would be ideal. Hmm. Say you had non-stock cams on the dohc head, would 2" still be ideal, or 2.25?
Thanks.
March-15th-2002, 07:46 PM
#5
Registered User
Join Date: Sep 2001
Location: Huntington Beach, CA Uhhh Surfs up Dude
Posts: 2,367
Originally posted by PseudoRealityX
Given the flow requirements for a P5, with the stock redline, and figuring you'll eventually do the normal bolt-on mods, id get 2" hydralic bent piping. 2" is actually still a HAIR on the side of big, so the hydralic bends wont hurt it too much.
The reason why the vast majority of exhaust shops dont have a mandrel bender is because the machine costs 30,000 bucks. There are apparently only 2 of these machines in Florida, and I didnt happen to goto a shop with one of them.
Given the flow requirements for a P5, with the stock redline, and figuring you'll eventually do the normal bolt-on mods, id get 2" hydralic bent piping. 2" is actually still a HAIR on the side of big, so the hydralic bends wont hurt it too much.
The reason why the vast majority of exhaust shops dont have a mandrel bender is because the machine costs 30,000 bucks. There are apparently only 2 of these machines in Florida, and I didnt happen to goto a shop with one of them.
No not just in Cali
March-15th-2002, 07:47 PM
#6
Registered User
Join Date: Sep 2001
Location: Huntington Beach, CA Uhhh Surfs up Dude
Posts: 2,367
Re: Custom exhausts
Originally posted by azrakain
Per PseudoRealityX recommendation I am looking into having a 2" custom exhaust. I also have read in SCC that 2" would be the best for mild NA 2.0L. I can't find anybody local that will do mandrel bends for the piping and I don't want crush or hydraulic bends as they reduce the flow (which is the whole point of replacing piping in the first place). I was told by a few local shops that a "good" bending machine would not crush the pipe at all. If this was true the machine would be a mandrel bender. Most of them have never heard of mandrel bending. At least thats what they tell me. I was looking into getting pre mandrel bent sections of piping from magnaflow but their website only advertises 2.5" and 3". http://www.magnaflow.com/03hardware.htm
I called them and they do sell 2.25" bends as well in stainless steel. What would you guys recommend? Should I go with 2.25" or should I look out of my area for this? If anyone in the VA, and DC area knows of a shop that does mandrel bending please let me know. Or if you know of another company that sells these pre bent sections let me know. I am not interested in the Bosal because I am not a fan of the muffler that comes with it. Just my opinion though. Sorry this is so long...its a lot of information to convey.....
Per PseudoRealityX recommendation I am looking into having a 2" custom exhaust. I also have read in SCC that 2" would be the best for mild NA 2.0L. I can't find anybody local that will do mandrel bends for the piping and I don't want crush or hydraulic bends as they reduce the flow (which is the whole point of replacing piping in the first place). I was told by a few local shops that a "good" bending machine would not crush the pipe at all. If this was true the machine would be a mandrel bender. Most of them have never heard of mandrel bending. At least thats what they tell me. I was looking into getting pre mandrel bent sections of piping from magnaflow but their website only advertises 2.5" and 3". http://www.magnaflow.com/03hardware.htm
I called them and they do sell 2.25" bends as well in stainless steel. What would you guys recommend? Should I go with 2.25" or should I look out of my area for this? If anyone in the VA, and DC area knows of a shop that does mandrel bending please let me know. Or if you know of another company that sells these pre bent sections let me know. I am not interested in the Bosal because I am not a fan of the muffler that comes with it. Just my opinion though. Sorry this is so long...its a lot of information to convey.....
http://www.JCwhitney.com
March-15th-2002, 10:51 PM
#8
Patriotic Protege5
Thread Starter
Join Date: Dec 2001
Location: Hampton, VA
Posts: 908
you may not get anywhere near that if the flow on your new system sucks. I am going to piece an exhaust together. I will post the parts sheet when I am done and the price. It should not cost more than $350-400 including muffler. The shop here would make a 2" hydraulic bent exhaust with magnaflow muffler of my choice for $225-250. That is my hookup supposedly since I know the guy. What did everyone else pay to get thier springs installed? I paid $100 w/o allignment. They were charging $200 for guys with civics and such that they can do in an hour. I think I got an awesome deal from my friend. The exhaust must be a great deal as well for $250...
March-15th-2002, 10:55 PM
#9
Just Say n2o
Join Date: Nov 2001
Location: Bay Area, California...dude wheres my car?
Posts: 286
Just in case you didnt know already, your stock piping a very nicely done 2 inch...so replacing it with another 2inch system would be superflewus unless you were removing all the restrictions -secondary cat+connecting pipe, resonator and stock muffler of course.
March-15th-2002, 11:03 PM
#10
Patriotic Protege5
Thread Starter
Join Date: Dec 2001
Location: Hampton, VA
Posts: 908
should i get a pre-silencer? I am going to get a high flow cat as the header will eliminate it. the piping is 2" however its crush or hydraulic bent. So the flow is not great. The pre cat is here to stay until HP releases their header or till i can get in contact with anthony at AWR about his header. Could I get rid of it with some of that flex exhaust pipe to replace the pri cat? That would be kindof ghetto but would help I'm sure till the header is available....
March-16th-2002, 11:07 AM
#11
Protege God
Join Date: Sep 2001
Location: Evanston, IL
Posts: 1,525
Is the exhaust for the 2.0L 2" in diameter? Has someone actually verified this with a caliper? I know the exhaust for the 1.8L is slightly smaller than 2", about 1 & 7/8". I would think they would be the same.
Originally posted by Greddy917
Just in case you didnt know already, your stock piping a very nicely done 2 inch...so replacing it with another 2inch system would be superflewus unless you were removing all the restrictions -secondary cat+connecting pipe, resonator and stock muffler of course.
Just in case you didnt know already, your stock piping a very nicely done 2 inch...so replacing it with another 2inch system would be superflewus unless you were removing all the restrictions -secondary cat+connecting pipe, resonator and stock muffler of course.