Gears and Gasoline Swap Camry Hybrid Engine Into MR-S Race Automobile

When most individuals are eyeing potential engines for a efficiency motor swap of their automobile, the 2AR four-cylinder engine from a Toyota Camry Hybrid isn’t going to be on the prime of their listing. Why wouldn’t it be? Certain, it’s received displacement, at 2.5-liters, but it surely doesn’t make a lot energy, and it’s not like anybody goes to make efficiency elements for it, proper?

Effectively, that isn’t totally correct, as you’ll see on this video sequence from YouTube’s Gears and Gasoline, through which one of many Bens replaces the blown 1ZZ engine in his MR-S with a extremely modified 2AR with some assist from Frankenstein Motorworks. However how precisely do they flip this 150-ish hp turd into an precise efficiency engine?

The reply to that includes a stunning quantity of inventory Toyota elements. For instance, as a result of the 2AR runs on a simulated Atkinson cycle for effectivity (like principally all Toyota hybrids), the consumption camshaft has big lobes, however the valve timing is retarded to make use of that elevate and length for effectivity. By taking the cam and pushing the timing ahead by a tooth, they take an environment friendly design and switch it into sizzling, nasty, badass pace.

The cam shenanigans (shenanicams?) don’t cease there. Our intrepid swappers ditch the 2AR’s wimpy exhaust cam totally for — shock! — one other consumption cam. Yeah, bizarre, proper? However by working a inventory 2AR consumption cam within the exhaust place at inventory timing, they get all the advantages of a excessive elevate cam with out spending a bunch of money.

The swap requires another extra mundane mods, like, for instance, an alternator and starter being added as a result of, as a hybrid, the Camry didn’t want these. In addition they required a six-speed guide transmission, which they received from a Scion TC, however then that wanted a shift part modified in order that the gearbox had all the mandatory detents to keep away from cash shifts. The swap axles are cobbled collectively from three early RAV4 half shafts.

Throw in a boatload of wiring, a Haltech Elite 1500 ECU and some customized elements from Frankenstein Motorworks’ catalog, and the result’s 228 horsepower on the wheels. Certain a Honda K20 would probably have made extra energy, however conserving issues within the Toyota household is fairly cool; plus shopping for a substitute engine if issues go south needs to be so much cheaper.