Subject	From my SZ tune in FloMo...
Posted by	ThisIsSparTTa on July 30, 2014 at 11:59 AM
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In Reply To	Is an X-pipe or H-pipe really necessary on twin turbo Z's? posted by TTZ2NV(EPTmotorsports) on July 30, 2014 at 11:38 AM
Message	I have the full Megan Racing exhaust system (BOO, HISSSS) downpipes to catback, which has separated mid-pipes, no x/h connection. Sitting on the dyno, after a couple of pulls Greg/Seb said something wasn't quite right with the exhaust. Greg hopped under the car and noted that the I had the separated pipes, and recommend taking them to a muffler shop to get a pipe welded in between them. I'm sure he can better explain it now, but IIRC basically he said you need the connection across to help balance out the 2 sides. Basically its a give/take to balance out the pressure and let the exhaust run optimally. My setup and dyno results are in my profile. We didn't dyno on the 2 configs like you asked for, but maybe it will give you some idea.
Follow Ups	Is an X-pipe or H-pipe really necessary on twin turbo Z's? - TTZ2NV(EPTmotorsports) 11:38:18 07/30/14 From my SZ tune in FloMo... - ThisIsSparTTa 11:59:52 07/30/14 If you're back in the area with your Z, let me know. - dogpile 14:43:55 07/30/14 Yep. Greg told me the same thing about 10 yrs ago - ForceFedTT (SoCal) 15:23:06 07/30/14 Im sure there are numbers - -Grimm- 13:42:40 07/30/14 Interesting. I dont know of any V-8's that use balance tubes - ZXoltan 16:12:18 07/30/14 how many are true dual exhaust ? (n/m) - The Devils Z 17:00:09 07/30/14 or turbocharged (n/m) - LJZTT 23:30:44 07/30/14 Re: Interesting. I dont know of any V-8's that use balance tubes - Obsolete84 18:13:12 07/30/14 Almost all V8 street/strip cars Ive seen have X pipes - -Grimm- 18:44:14 07/30/14 As a matter of fact, here are some publications I hosted... - -Grimm- 18:48:14 07/30/14 thank you for this ..extremely good reading (n/m) - The Devils Z 19:46:55 07/30/14 I'm willing to bet the difference between X/H on Z32 - LJZTT 23:41:34 07/30/14 I'd get an X if you could fit the same size resonator - BoneZ (MD) 20:32:54 07/31/14 kinda defeats the purpose? (n/m) - LJZTT 23:18:47 07/31/14 Not for me - X for whatever perf. gains are to be had - BoneZ (MD) 20:13:49 08/02/14 They have a decent effect from what I've heard - BlackholeZ 22:20:46 07/31/14 tbh I can barely tell any difference in that vid (n/m) - LJZTT 23:22:17 07/31/14 Thanks for the education ;-) - ZXoltan 05:58:40 07/31/14 Appreciate ya fellas. Appreciate the knowledge. (n/m) - TTZ2NV(EPTmotorsports) 10:42:30 07/31/14 It allows the individual shock waves to travel out both pipe - BlackholeZ 16:44:02 07/31/14 My setup went from two straight pipes (no H-pipe, no X-pipe) - sparkie 13:07:17 08/01/14
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