HP at which a 4k is too low gearing?

[jdbubb@ix.netcom.com (Dan Bubb)]

I'd think 150 WHP would max out your revs with a 4K unless you're planning
on a really high redline. A 4K gives just under 20 MPH/ 1000 RPM. So, if
redline is 7000 then a 4K will give you 140 MPH and I think 150 WHP would
get you to that speed. OTOH if you're planning on spinning 7500 or 8000 then
the 4K might be just right.
So, what EFI are you getting?? I'm curious, because now that I have the
Haltech, I have some definite opinions about this.
Dan
----- Original Message -----
From: <jester@westfailure.net>
To: <scirocco-l@scirocco.org>
Sent: Sunday, February 17, 2002 9:51 AM
Subject: HP at which a 4k is too low gearing?


> hi all,
>
> I am thinking of swapping out my AGB for a 4k.
>
> At what horsepower rating does the 4k become too low of gearing?
>
> 150 WHP? 175 WHP? 200 WHP?
>
> I am staying NA but have big plans & hope to have 150-170 WHP by the end
> of this year. can you say "built 9a with Jenvey?" I thought that you
> could. I have the 9a, programmable EFI (in the mail next week) cams, head
> studs, to buy: valve springs, arp rod bolts, balancing & a whole mess of
> other stuff.
>
> thanks,
>
> Steve
>
>
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