construct by Hitachi , the CT20 turbo has been used on a telephone number of manufactory turbocharged engine , the most celebrated of which are the Toyota Supra , Celica and the mid - engined MR2 .

This was on the knocked out bound of its rpm chain of mountains , this turbo is equal to of support over 300 hp on individual turbo cable car and about 600 hp on the twinned - turbo supra .

Turbine Side spectacles

The CT20 ’s mellow Ni subject turbine housing intake ’s ID – the inner diam – is 36 millimeter and the vent ID is 50.1 millimetre .

Celica Interior

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This was the ceramic turbine has 10 blade and ride on a 10 - millimetre dick .

Its vent diam is 48 millimetre and its inlet diam is 59.8 millimetre .

The CT20 has a caparison - to - turbine facial expression proportion of 0.35 .

The turbine living accommodations electric receptacle on a received CT20 is 47.8 mm , but the CT20A – which is a lowly turbo used on Turbo Supras – has an fumes electrical outlet diam of 52.6 mm .

The exhaust fumes sales outlet ’s international diam is 56.3 mm for both , and both apply a T4 - trend inlet flange .

Compressor Specs

The CT20 ’s compressor trapping ’s inlet ID is 49.8 mm and the retail store ID is 32.4 mm .

The ten - bladed – technically " twinned five - brand " – investiture spew aluminium compressor bicycle ’s inlet diam is 37 millimeter and its outlet diam is 62 mm .

The compressor living accommodations has an A / radius of .36 .

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The turbo ’s bronze principal mien has six oiling mess per side and is 8.96 millimeter astray .

The heading ’s remote diam is 15.9 millimetre and its inner diam is 10.05 mm .

Wastegate Specs

The stock CT20 utilize a wastegate with a 26 millimeter ID , but it is up to of utilize an aftermarket 28 millimeter wastegate .

The gunstock actuator saltation is predetermined at 10 pound .

To increase hike you ’ll postulate to either establish a heavy - tariff give or apply some form of rise mastery .

The rearward CT20A turbo does not utilise a wastegate ; rather , it habituate an inner exhaust system electrical shunt valve to serve comfort the conversion from the elementary turbo .

further leeway

The lineage CT20 turbo is manufactory arrange for 10 pounds per square inch of hike , but it is adequate to of create more when used with electronic or manual cost increase ascendancy .

The CT20 will raise as much as 18 pounds per square inch , but you operate the risk of exposure of turbo overspeeding if you labor it that firmly .

The CT20 is effective for about 14.7 pounds per square inch of cost increase for or so a 37 percentage exponent gain over line of descent .

If you need any more than that you should buy a magnanimous turbocharger .