[200q20v] S4 Injectors

C1J1Miller at aol.com C1J1Miller at aol.com
Sat Dec 9 15:50:13 EST 2000

In a message dated 12/9/00 3:36:47 PM Eastern Standard Time, 
paulcsu at hotmail.com writes:

> Has anyone used S4 injectors on their chipped 200 with good results? I have 
>  heard that they flow more fuel. Also, has anyone used a RS2 exhaust cam 
>  a performance increase?
>  Thanks,
>  Paul Friedenberg
>  '91 200

I haven't seen the spec on the S4 injectors versus the 200q20v.  I believe 
the S4 runs a 0.5 bar higher fuel pressure, which would account for flowing 
more fuel; probably controlled by the fuel pressure valve on the end of the 
fuel rail.

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