should i use obx manifold for a red?
the full race manifold is definitely a quality manifold but imo the cost outweight the gains like I said unless you're making big power like 500+, then it's most definitley worth investing in.
http://www.full-race.com/catalog_ima...vo_PS_Dyno.jpg
+29whp on a stock turbo with 272 cams. Thats impressive no matter how you look at it. The original 345whp is nothing significant, definitely doesnt take much. If the OP is running a Red he will see even better power increases with a good tubular.
For what most will pay for good porting/coating, the tubular manifolds are not a bad buy.
+29whp on a stock turbo with 272 cams. Thats impressive no matter how you look at it. The original 345whp is nothing significant, definitely doesnt take much. If the OP is running a Red he will see even better power increases with a good tubular.
For what most will pay for good porting/coating, the tubular manifolds are not a bad buy.
not from a stock engine with cams on it already
I do agree that for lower HP builds, sticking with the stock (ported or not) isnt a bad idea.
BS. The Megan manifold, or the OBX will NOT make as much power as a ported stocker. If that were the case, all of the record lists would be using them, and NO ONE is.
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Anyone who's ever pushed their turbos to the limit for 3-5 minutes straight will understand the value a quality thick walled manifold.
When looking at a cheap manifold beware of slag inside. Cheap manifolds have a tendency to have a bit of drop through do the lack of QC. The slag will also break off and take out the turbo 
Michael

Michael
I cant believe this conversation is actually taking place.. Seriously, a cheap mani is exactly that cheap. Your gains will not mean diack when it only lasts for a couple months (being optomistic), or worse a new turbo. If you are looking at the <400 range then go with a stocker ported. If you want to get every bit out of that stock appearing turbo, then get a QUALITY tubular. I hear ETS makes some pretty nice stock turbo tubular mani's... I like em a little bit too..
OBX and Megan wouldnt be on my list of good tubular manifolds. My comments were simply comparing good tubulars and a ported stock manifold.
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My car came with a cheap Megan manifold. That **** cracked at a weld that looked like it had been welded a few times over. Went with a regular stocker. Had no issues. Have a Mona Lisa now so once I sort out my motor options that will be used.






it's not rocket science