B18C motors whats so different about the LS-vtec, GSR and Type R motors... is it like bigger cylinders or something? they are the same motor but what makes the type R have 20hp more than the GSR?

 

LS/Vtec: b18a or b18B block (140 hp stock) w/either the GSR/B16 or ITR head on it. Very common 'Frankenstein" build. Makes very good pwoer.

GSR(b18c1): 170 hp Vtec engine

ITR (b18c5): 195 hp Vtec engine

Taken from consumer guide:

In 1997, Acura introduced a highly modified version of the 1.8-liter from the GS-R for its high-performance "Type-R" model. All-new connecting rods are hand-torqued, ports are hand-polished, while a new forged-steel crankshaft comes with counterweights made with special metallurgy techniques to reduce vibration and bending fatigue. The revised engine includes oval intake springs, dual-exhaust valve springs, thin-stemmed valves and lighter die-cast aluminum pistons with molybdenum-coated skirts. Additional oiling passages and new crowns help boost the compression ratio from 10.0:1 to 10.6:1. In addition, a special camshaft gives higher lift and longer overlap to match a bigger-bore exhaust and freer-breathing exhaust manifold, which features a single wide runner per cylinder rather than smaller twin passages. Finally, the crackle-red finish on the engine's cam cover help set it apart visually from the GS-R's engine.

 

^^ Very good info.

One of the few people here to help, and not bitch.

 

thats really good info.....

 

good info