Subject: Re: What intake for high end 383? by BillH on 2009/12/3 14:37:11
Quote:
sliding wrote:
With rpm ranges above, weakest point is 1-2 shift where rpms drop from 7200 to ~3800 (check graph), and 2-3 and 3-4 shifts should keep revs over 4000.
But anyway, all the tracks here are configured that way, that 2nd and 3rd gear are only thing that I can use.
Just my $0.02, but most of the V8 roadrace cars here aren't reving that high. Most club racers want the motor to last a full season. One half hour race will see 350+ redlines (shifts). Plus whatever you run during practice and qualifing. Most are probably shifting at 6,800 or lower. We have the vintage Nascar shift lites set low like this to keep th rebuilds down. And we generally set the shift point to peak torque, not peak HP. Torque is responsible for fast laptimes not horsepower.
Not using 1st is normal. Four speed manual cars may use 1st in one (maybe 2) corners on any given track but 6 speed cars never see 1st gear, depending on the track, you may not even get into 2ond.
