Contour Enthusiasts Group Archives Forums Modifications General Mods UIM and LIM

Originally posted by DemonSVT:

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The returnless LIM he picked up specs at:

LIM (Returnless)
>Inlet
Primary: 33.5mm
Secondary: 34.7mm
>Outlet
Primary: 32.5mm
Secondary: 34mm

The main problem he will run into is that the non-SVT's DO NOT have Extrude Honed heads! That makes their head inlets ports a good 2mm smaller repectively then the 99/00 SVT which spec'd at 33mm/34mm.
(98/98.5 - only had secondary ports EH'd once)

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Demon

I have the LIM just a bit lost on the "The returnless LIM he picked up specs at:" I measured the LIM and it is probably those exact measurments I got it to 35 and 33 and on the bottom 32 and 34, Is the LIM bigger to create a chamber of enough air but also a bit of spare air????