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Constant Tension Hose Clamps
KORacing Products » Toyota MR2 MK2 » Induction / Intercooler / BOV

These constant tension clamps are one of the best options for securing your pressurized hose connections. The spring packs on the adjustment screws maintain even pressure around the clamps over widely varying temperature and pressure changes. These severe duty clamps can be torqued to over 12 ftlbs for a tight fit, while their worm-type adjustment gives each clamps a wide range of adjustment, and even pressure around the circumference of the pipe -- unlike T-bolts style clamps that tend to squeeze much tighter on one side than the other leading to crushed pipes. These clamps are full lined meaning you won't damage your hose like standard worm type clamps by chewing the clamp into the hose.

These clamps are constructed of 304 SS with the adjusment screws being zinc plated steel or stainless steel. The adjustment screw is a 3/8" hex size.

The smallest clamps are great for coolant connections, where the larger clamps are utilized on charge piping and hoses for intercooled turbo and supercharger applications. Be sure to measure the outside diameter of your hose to select the proper clamps, not the size of the pipe as hose is typically 1/4" (6mm) thicker per wall than the pipe (1/2" or 13mm total). Below is a general guideline for clamp selection, but may not necessarily be accurate for all applicatoins. If you are unsure, measure the outside of your hose when it is installed on the pipe with a pair of calipers. If you do not have calipers, measure around the outside of the hose on the pipe with string and a tape measure, then divide the result by pi (3.14):

  • For 1.0" to 1.25" pipe, use CT9420s
  • For 1.5" to 2.0" pipe, use CT250s
  • For 2.25-2.5" OD pipe, use CT300s (used on KO MR2 IC pipe kits)
  • For 2.75"-3.25" OD pipe, use CT350s
  • For 3.5" OD pipe, use CT400s
  • For 4" OD pipe, use CT450s

$9.00 each
Select Clamp Size:

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