| Re: Looking for tbi spacer??
Which choice is better? modify stock TBI and Manifold or go for aftermarket ones?
Option A: upgrade TBI and manifold, porting to 1.8125" (1 13/16") diameter (max TBI unit bore size without going thru the casting) increasing flow to 590 cfm.
Option B: Buy a new larger TBI unit with 2" throttle bore, and port manifold to reach larger 2" intake ports.
Option C: Put 1 acetal resin TBI spacer between manifold and TBI unit, and 1 acetal resin injector spacer installed between the injector pod and the throttle body base.
According to Department of Materials Science and Engineering, University of Tennessee, Knoxville-USA, acetal resin is formed from the polymerization of formaldehyde. The tightly interlocked helical molecules and high crystallinity result in excellent mechanical properties. Its superiority in tensile strength, stiffness, creep resistance, and fatigue classify it as an "engineering resin", a term used for plastics which is commonly used in place of metal in applications where metal should not be used (magnetic, corrosion, or conducting / insulating reasons). Acetal resin is much stiffer than polyurethane mounts, and it will not give or wear out. This material will give the same effect as solid aluminium, without the intense vibration which metal transmits.
Which is your choice?
Last edited by ravagebang; 12-23-2009 at 02:32 PM.
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