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Re: Porting a U20 is Such a Waste of Time

Posted: Sun Apr 30, 2023 8:03 am
by tjp
richard wrote: Sun Apr 30, 2023 2:05 am Yes great job thanks guys, interesting article.
Now on the last page last section Lou mentioned about real dyno figures in the next roadster magazine #104 2014.
Does somebody have that also in their archives?

Thanks again,
Richard
Hopefully this is legible.

Re: Porting a U20 is Such a Waste of Time

Posted: Sun Apr 30, 2023 10:07 am
by redroadster
What's port velocity got to do with ? One that's not econo small
especially in a very short straight intake. See my GM 3.1 tuna can cyl head post
A 4v Beats a 2 v except for the fact that F I they're running on a much leaner mixture I'd like to build a secondary carb set up for my 4v 4G63 , to see the perf up grade