Subject	Whats important for an exhaust manifold is
Posted by	ztunerz on February 20, 2011 at 10:55 AM
	This message has been viewed 313 times.
In Reply To	Question about your comment : posted by The Devils Z on February 20, 2011 at 06:45 AM
Message	1. Get up to temp quickly (tubular will be quicker than cast) 2. Retain the temp in the manifold (ceramic coating will help with that) 3. Equalise flow between cylinders 4. Be slightly larger than the head ports so there is a lip to reduce reversion. The z manifold design has problems with the 5th and 6th runners being two short causing 3 and 4. If that runner can be lengthened like ashs design it helps the manifold as a whole. Flow is only part of the equation. Harry Formerly yellowzxtt
Follow Ups	AshsZ-II Ultimate Street Z - Manifold Flowtest >>>> - Ash's Z 12:49:59 02/19/11 Very interesting. (n/m) - Summeronthechain (MN) 13:45:12 02/19/11 Awesome (n/m) - toykoz32 13:58:38 02/19/11 Looks good but I'll stick with AMS. Flow data says it all. - PiotrC70 14:41:44 02/19/11 LMAO (n/m) - ZiNnYc 14:47:06 02/19/11 additional holes in the casting for extra air flow! (n/m) - Shiers69 15:05:58 02/19/11 LOL (n/m) - zfreak(Dallas) 15:54:29 02/19/11 You forgot to say they're much cheaper too LOL (n/m) - SWhiteTT(WA) 16:40:36 02/19/11 Thats awsome! (n/m) - MeatMan - 604Z.ca - 19:07:05 02/19/11 So its possible youd be breaking 700 with the MS... (n/m) - ZiNnYc 14:46:47 02/19/11 Based on the results, would you eventually swap yours for - PiotrC70 14:47:52 02/19/11 I think Ash would pull his motor for any reason...hehe (n/m) - dpjax 15:25:26 02/19/11 Most likely will be the final decision at some point to go - Ash's Z 16:22:50 02/19/11 Ash, I love when you make posts... - akdawgg99 21:51:56 02/19/11 get a room ;) (n/m) - ForceFedTT (SoCal) 04:59:53 02/21/11 Question about your comment : - The Devils Z 06:45:47 02/20/11 Whats important for an exhaust manifold is - ztunerz 10:55:37 02/20/11 2nd^^ - LitlElvis 12:26:41 02/20/11 Agreed (n/m) - ztunerz 12:32:52 02/20/11 so basically what you both are saying is that the gains - The Devils Z 14:35:49 02/20/11 no, I didn't say that a smaller opening would be better. - Ash's Z 08:53:34 02/21/11 thank you for the clarity (n/m) - The Devils Z 15:25:10 02/21/11 In what flow direction did you test the manifolds? - LitlElvis 12:05:25 02/20/11 2nd - entry radius is important if you're sucking air in (n/m) - Zarcasm(Hfd, CT) 15:48:05 02/20/11 693RWHP on racefuel at 30.5psi? Average joe does not boost - RevTech 15:47:56 02/20/11 Perhaps not, but the power at 18psi is what it is, and its - Ash's Z 08:55:05 02/21/11 Keep up the good work, Ash. (n/m) - Milo (SATX) 20:48:23 02/20/11
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