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Old 03-08-2010, 12:47 AM
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doc stang
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Default b head advice

hello, i need some advice regarding a 98 cobra


i am building it up for american iron, road racing action, and it needs to remain Naturally Aspirated.
i need about 350 rwhp, and 360 tq, which will give me just a little wiggle room, depending on her final weight after the cage, and all.

i think i want to do some b heads with port/polish/valve job, and cams.
looking for advice.

the car will NEVER see forced induction
it may, down the road get a built short block with higher CR, and stroker crank (+/- on this),
maybe never, if the heads/cam/intake get me where i need.

what do i need to get and do. to reach my goal
i am looking to maximize are under the curves, not for peak numbers.
i want a long flat torque curve, and to be able to use as much rpm band as possible.
this will be a strictly road-course racing car.


does it matter what 4v head i start with???
cobra vs Lincoln Mark VII, vs (do navigators come with some DOHC / cobra-compatible heads?)
how much of a P/P? i don't want to go too wild, and take a step backwards, considering i wont be adding FI

should i even port em at all, and just do cams?



oh yeah, where are we right are now:

stock power plant with :
LTHs, off road h pipe, and flomasters with dumps/turn downs
smog pump/egr delete,
a K&N filter,
and steeda 10% UDPs, and an aluminum DS,

yielded a disappointing 287/283.
not sure how much he left on the table, if any



thanks,
doc

i DID just read the sticky, about heads
wow,
a lot of info, and things to consider.

in the 1st part of my post, i indicate i had been planning on staying with B heads, since that is what the car has,
and by doing so i dont have to switch from a return to a returnless system (or di i have that backwards?)

now, having read the sticky,
i am even more confused as to what will be the easiest/cheapest to reach my hp/tq goals, naturally aspirated,

doc

Last edited by doc stang; 03-08-2010 at 12:50 AM.
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Old 03-08-2010, 07:40 AM
  #2  
BraMas
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Are you a member of the Corral or SVTP? If so find a member that goes by "na svt"
He will have good info for you and it will be correct. He knows his stuff
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Old 03-08-2010, 07:42 AM
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Well I guess that answers that question I just went over to the Corral and see you posted the exact thread there. I'm sure he will jump in on your thread
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Old 03-08-2010, 08:58 AM
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mfj
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Honestly, it's going to be difficult to reach those numbers AND have a flat curve. Those numbers are attainable with head work and some large cams, but low end torque will suffer...

Just throw an ls1 with bolt-ons, and you'll be right where you want to be, with no headwork! lol
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Old 03-08-2010, 12:12 PM
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He said he was building and AI car so he can't do a LSx swap
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Old 03-08-2010, 05:18 PM
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Originally Posted by BraMas
He said he was building and AI car so he can't do a LSx swap
I was being facetious...
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Old 03-09-2010, 04:33 PM
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and i was f'n with you
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