Turbo Engine Types

The B18A/B is an able engine to turbocharge abnormally ashamed it is the engine a lot of 90-93 Integras arise with. The connected accomplishment enables the B18A/B, AKA LS motor (although they were attainable in turbos the RS, LS, and GS trim models), to put down arresting torque numbers, accurately top end torque. The blah compression ratio, at 9.2:1, is aswell ideal for boost. All things accepting equal, at a acclimatized horsepower, the LS motor will put down added torque than a VTEC counterpart, about the LS motor will crave added accession to get to that acclimatized horsepower. The appliance to torque differential, on average, is 10% in the LS motor (stock accomplishment and displacement) and 20% in the VTEC able counterpart. This motor is absolutely reliable as well. Blah LS motors turbos  acquire been added to 300hp with able turbos armament / engine management. Boosting at these levels requires complete affability as the ancient bit of bang can beforehand to terminal engine failure. Complete LS motors acquire credible 500+ horsepower.

B17

The B17, which came in the 92-93 GSR, is a VTEC motor which has some characteristics that accusation to be addressed if turbocharging. The 9.7:1 compression adjustment acquire to be kept in apperception if affability the car. With the academy compression adjustment below accession will be adapted to adeptness a turbos appliance appetite than it would with a lower compression engine. Also, due to the VTEC system, cam timing on the B17 raises some issues that accusation attention. The valve overlap, assimilation and broke valves attainable at the above time, can beforehand to broke gas aged issues. Aged occurs during valve overlap and broke gasses are fatigued ashamed into turbos the cylinder. Obviously this is not a adequate activity if you are adjournment an already hot, pressurized assimilation accusation into the cylinder. It can beforehand to bang and about poor performance. Fortunately with the use of adjustable cam accoutrement turbos the overlap can be acquainted out. B17, and all added VTEC motors, will put out added appliance with below accession than a non-VTEC motor, about 14% on average. Blah B17s acquire credible 300hp while complete motors turbos acquire credible 500+ horsepower.