Stock fuel rail ?

[434nova]

When does the stock fuel rail become a limiting factor ? Around what hp should one consider to upgrade to a Champion rail or Cruz rail setup ? Thanks

 

[434nova]

Bump..

 

[earlbrown]

Since the ID of the fuel rail is a LOT bigger than the fuel feed line, I'll guess that it'll never be a flow restriction.

 

[434nova]

Thanks Earl. I was gonna get a Champion rail when I did my e85 conversion but I guess I can spend the money elsewhere.

 

[Nick Micale]

The stock fuel is not the restriction, the GM fittings are the restriction.

On a few low 9 sec. GN's, we have welded a -8 AN male bung on the supply side and have modified an alum regulator with a -6 AN male fitting for the return.