Engine/performance differences from the 91 base model, and lx/dx models!

Why does the 91 base have like 70 stock, and the dx/lx has like 90.....

dont they both have DPFI?


What are the parts causing the power differences?


Thanks, Laterz, Andrew

:comprage1


:icon16:

The D15B6 (standard and HF models) has a SOHC, 8 valve head and the D15B2(DX and LX models) has a SOHC, 16 valve head. Thats one of the differences.

-Derek.

D15B1s had 70hp, they were the STD engine.

D15B2s had 92hp, they were the DX/LX engine.

Both had DPFI.

D15B6 had 60hp, was from the HF, and was MPFI.

Originally posted by 90civichatch
The D15B6 (standard and HF models) has a SOHC, 8 valve head and the D15B2(DX and LX models) has a SOHC, 16 valve head. Thats one of the differences.

-Derek.

Only the HF has the B6, STD/Standards had D15B1s.

Originally posted by RotaryzRacing


What are the parts causing the power differences?


Thanks, Laterz, Andrew

aka, cams? intake design? more restrictive exaust? different exhaust manifold design? different head design?!

oh damn i thought the std had a b2 also and just had a more restrictive exhaust manifold or some shit ... learn somethin new everyday though

I think the B1 also had a different cam then the B2, and yeah STD had the Cat on the header unlike the DX, actually I think 88 STD had it just like the DX but the rest had it on the header. Also all these engines had intake manifolds probably not big enough to drop a golf ball in (supposing there were no butterflies and all that of course).