francia661

Im running a b16a with itr cams, cometic 0.40 head gasket with minor head work to drop compression and arp head studs.......and i was told to put the stock cams back on due to cam duration and cam staying open longer making me loose power with the turbo........so i want to varify if this is true and get some opinions........thanx

cjordan

iTrader: (1)

i have a b16 turbo and picked up alot better spool time on my 35R and more midrange power by swapping to ITR's

francia661

So should i put stock cams back on or keep itr?????

da_dude

Keep the ITR cams.

Top Ramen

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by francia661 &raquo;</TD></TR><TR><TD CLASS="quote">So should i put stock cams back on or keep itr?????</TD></TR></TABLE>

Depends on your boost level and manifold type. If you are running reasonably high boost and the exhaust manifold flows well, you will benefit from the bigger ITR cams.

Best of luck with your project.

blinx9900

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by francia661 &raquo;</TD></TR><TR><TD CLASS="quote">Im running a b16a with itr cams, cometic 0.40 head gasket with minor head work to drop compression and arp head studs.......and i was told to put the stock cams back on due to cam duration and cam staying open longer making me loose power with the turbo........so i want to varify if this is true and get some opinions........thanx </TD></TR></TABLE>

how did head work drop your compression? Keep the itr's, i have ctr's in mine making 333whp at 12psi

TheShodan

iTrader: (14)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">

how did head work drop your compression? Keep the itr's, i have ctr's in mine making 333whp at 12psi </TD></TR></TABLE>

His .040 headgasket.

francia661

On the valve ports they grinded the ports at a angle to drop compression......

boostedcivicsir

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by francia661 &raquo;</TD></TR><TR><TD CLASS="quote">On the valve ports they grinded the ports at a angle to drop compression......</TD></TR></TABLE>

huh?

sho_tyme_psi

Think he may be a little confused, sounds like maybe some chamber work?? making them bigger to lower the comp.

HiProfile

The only case where extra duration will hurt you with a b16 head is if you run a small turbine and high boost. You need to have lots of exhaust manifold pressure to start feeling the effects of reversion.

BTW I think he means they deshrouded the valve seats. That wouldn't do very much though, as thats not enough material to impact the CC size much.

marc_b16turbo

SO if running a b16a with itr cams no need for cam gears even if turbo