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#1
02-08-2018, 07:12 PM
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Nice!
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#2
02-08-2018, 07:33 PM
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Here is the graph comparing the performance with the log manifolds and old exhaust system, to the Tri-y headers and new exhaust system.
Beyond a doubt, the higher the rpm, the greater the loss of performance from log manifolds.
__________________
'73 T/A (sold). Low budget stock headed 8.3:1 455, 222/242 116lsa .443/.435 cam. FAST Sportsman EFI, 317rwhp/385rwtq on 87 octane. 13.12 @103.2, 1.91 60'. '67 Firebird [sold], ; 11.27 @ 119.61, 7.167 @ 96.07, with UD 280/280 (108LSA/ 109 ICL)solid cam. [1.537, 7.233 @93.61, 11.46 @ 115.4 w/ old UD 288/296 108 hydraulic cam] Feb '05 HPP, home-ported "16" D-ports, dished pistons (pump gas only), 3.42 gears, 275/60 DR's, 750DP, T2, full exhaust |
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#3
02-08-2018, 08:19 PM
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Wow, that's a big difference for that power level. Nothing like real world data.
__________________
1967 Firechicken, 499", Edl heads, 262/[email protected]" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. [email protected] mph with a 1.45 60'. Still WAY under the rollbar rule. |
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