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36 result(s) to your search. (Tuning)

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Anthony
Wed April 4, 2007 7:55pm
Rating: 10

Chassis Dyno - Last Run 427 High Riser

Self built 427 SO, stock stroke, 429 ci., Dove aluminum High Riser heads, mildly ported, 10.5 : 1 CR, original holley 780 cfm LeMans carb, vacuum secondary, on an original single four BBL , dual plane, Hi-Riser intake. Chassis Dyno is at Performance Engineering, Hamilton, OH.

Carb jets changed, and timing adjusted by Performance Engineering. Picked up 80 ft-lbs torque and 60 hp by chassis dyno tuning.

With a 20% loss, estimated max flywheel torque is about 600, with about 570 flywheel HP at 5900 rpm's and still climbing.

The torque curve is pretty flat.

Anthony
Wed April 4, 2007 7:57pm

Chassis Dyno - Last Run 427 Hi-Riser Air-Fuel Ratio

Self built 427 SO, stock stroke, 429 ci., Dove aluminum High Riser heads, mildly ported, 10.5 : 1 CR, original holley 780 cfm LeMans carb, vacuum secondary, on an original single four BBL , dual plane, Hi-Riser intake. Chassis Dyno is at Performance Engineering, Hamilton, OH.

Carb jets changed, and timing adjusted by Performance Engineering. Picked up 80 ft-lbs torque and 60 hp by chassis dyno tuning.

With a 20% loss, estimated max flywheel torque is about 600, with about 570 flywheel HP at 5900 rpm's and still climbing.

fkemmerer
Sat January 19, 2008 7:57am
Rating: 10

Alum. FE with TWM EFI

I've added some of the accessories to my engine and changed the distributor to a FAST dual-sync to allow for individual cyclinder tuning. The engine was built by Keith Craft.

fkemmerer
Sat January 19, 2008 7:57am
Rating: 10

Michael J
Fri January 2, 2009 5:00pm
Rating: 10

CSX 3274 Engine Bay

CSX 3274 in the pit area at the Steamboat Springs, CO. vintage races, 1998. There is no choke on this carb and repeated backfires while tuning kept the mechanics from leaning in too far.

Contact me at lightcatcher@bresnan.net for more details.