sizing a twin screw

doc stang

New Member
Mar 9, 2007
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???at what point does a blower become too big for the engine.

i have a built, forged 4.6 in a 2007 gt, stroked to 5.0 liters
so displacement is halfway between stock gt, and gt 500.

Kb sells a 2.6 for the gt, and a 2.8 got the gt 500.
now whipple has a 3.4 and i think a 2.9.

???which to pick?

i was initially planning on twin turbo's but as the time draws nearer, i am becoming more worried about a protracted down-time for installation.

??? is my perception correct that - a twin screw would be a quicker, easier install?

the block is a teksid, the k-member is a bmr tubular, the exhaust is now a 3" granatelli manifold-back catless system. (stock manifolds, still)

suffice it to say that even if the stock twin turbo kit (still as yet to be decided on) went on a stock gt 4.6 perfectly . . .
my set up may be different enough based on the above, to really complicate /prolong things.

any other thoughts or suggestions would be appreciated

doc