Unported head quickness?
OK crew. Another idea I had. This is, kind .
Engine and parts;
Trans/converter
Rear gear and tire size
Suspension
Light weight parts
(or missing parts)
Cars weight
E.T. / MPH
My '72 Valiant 4-door has a BONE STOCK 360 Magnum (except for a mild, Hughes cam, heavy-duty pushrods and valve springs; Crane roller rockers,) low-mileage engine out of a 1998 Durango, to which I added an AirGap-style Chinese intake manifold and a set of TTI headers ands a Vortech centrifugal blower.
It runs mid-11s at about 118 mph with 3.55 gears and a stock, 318 converter; 1.81 60-foot, on a cold track (no bite). It weighes 3,300 pounds without my considerable arse in it, and runs on some worn-out, T-A Drag Radials (spinning all the way through low gear,) with spring clamps on the front portion of the rear leafs, and an air bag on the right rear...
That's almost 2 seconds quicker than it ran with NO blower, 340 exhaust manifolds, and an M-P hi-rise intake.
(13.35 best @ 102, un-blown.)
It feels like a whole different car, with 10 pounds of boost. Stock pistons and head gaskets don't seem to mind the boost, although I did buy an MSD boost-retard (Boostmaster) and a Snowperfornance "Boostcooler" methanol injector, set to start spraying at 3 pounds of boost. No detonation that I am aware of.
I know that rhis thread was not supposed to be about supercharging, but I thought that maybe some folks might be interested in another route to power, with un-ported heads.
Here's the chassis dyno sheet for this build, and a picture of the car it's in:
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