5 Simple Techniques For 4age 20v itbs

5 Simple Techniques For 4age 20v itbs

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A bit of hose on your ear, holding it at the very same place for each one's 'hiss' for comparison - Seems equal, They can be equivalent.

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The sole cams available which are verified to get a drop in substitution making use of both of those of the initial pulleys is the “Poncam” from Tomei. This merchandise is known to operate perfectly with gains across the rev vary and functions on totally unique engines.

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For an ECU that can only swap the output the moment at a specific set revs then two outputs are necessary. Every single on the outputs would turn on a relay each, where the first relay would activate the VVT solenoid and the 2nd Minimize the power to the first.

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This is among very few Toyota ignitions which can be marginal. Colder plugs needs to be utilized with any update. For carburetor Outfitted 4AGs the distributor has got to supplemented having a timing controller, MSD 6A, as well as a coil.

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This is a 20V engine Using the cam-belt cover removed. Obvious is definitely the still left hand side pulley that is the VVT equipment.

For an ECU that may only switch the output as soon as at a particular established revs then two outputs are desired. Every from the outputs would turn on a relay Each individual, where by the main relay would activate the VVT solenoid and the 2nd Minimize the ability to the very first. This really is discussed during the dealing with VVT guidebook.

It's got also been found which the OEM tune for both 20V ECU’s is most effective called remaining very conservative. They are noted for acquiring incredibly retarded (no pun meant!) timing and managing really wealthy over a specific revs or load.

There is A lot speculation on what does and doesn't do the job with aftermarket cams and VVT control. Some report outside of a specific duration the pulleys retard the timing an excessive amount, citing items which include valves touching pistons from the extra ignition progress.

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