x-s-i-v

hay guys im from new zealand
i just got my b16a tuned,
made 313kw or 420hp at the wheels

hear is a quick run down.

b16a ported head, valve springs, ti ratiners etc
98 spec type r cams and adjustable cam gears.
rsl intake mainfold and big tb
84mm sleeves je pistons eagle rods
gt35-40 ball bering turbo, crap mainfold (t3 flange)
38mm race pro vband waste gate (may need to change to 44mm)
3" stanless exhust
2.5" intercooler piping





there is more tuning to be done in the mid range, and the vtec point is set wrong




now mu manifold creeps boost, quite bad, i need to get a new one, but not to expensive,
if i set it to 10psi it will creep to 20psi easy, i can only run 20 psi with this manifold.
in nz were quite limited to what we have avaliable
if any one have anysugestions please let me know

i was looking at an obx top mount has any one every used them befor, ive heard they are crap, and crack,
http://global.ebay.com/gbh/viI...85463
would like a peak boost one but they are expensive as



Modified by x-s-i-v at 2:55 PM 10/15/2008

Schister66

I'm sure you know the creep is due to the manifold and the wastegate being less than ideal items on your build. If i were you, i'd search through the marketplace for a new manifold, dp, and dump combo. You can get good ones from companies like SLS, AFI, SPoolin, Peakboost, etc for a reasonable price. At this point (having a built/ sleeved engine) it isn't time to cheap out on an important item like a good manifold. Look around and investigate your options...there are plenty of them out there

b20vtech

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by x-s-i-v &raquo;</TD></TR><TR><TD CLASS="quote">

i was looking at an obx top mount has any one every used them befor, ive heard they are crap, and crack,
http://global.ebay.com/gbh/viI...85463
would like a peak boost one but they are expensive as

Modified by x-s-i-v at 2:55 PM 10/15/2008</TD></TR></TABLE>

those ebay crap are only good under 12psi

Schister66

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b20vtech &raquo;</TD></TR><TR><TD CLASS="quote">

those ebay crap are only good under 12psi</TD></TR></TABLE>

I dont think the pressure ratio really has a lot to do with its durability; nonetheless, i agree that it isn't a great manifold choice. After several heat cycles and vibrations from your car, it is going to start to show wear. Its made of sub-par materials which is why its so cheap. If i were you, i would invest in a good manifold that you know is going to last. The last thing you want is a piece of the manifold to break off and ruin that expensive, un-rebuildable turbo you have...