On every track I drive there is at least one turn, usually at the end of the longest straight, where I downshift directly from 5 to 3 skipping 4th gear. Will the auto blip on a GT-4 accommodate this or must you go 5-4-3?

 

Auto-blip should accommodate that, but why do you skip 4th? You're putting more wear on your 3rd gear synchros by skipping it, making it harder to get a smooth rev match (since two small blips is easier than one big one, though obviously not a concern with auto-blip) and if you clutch out to actually shift into 4th rather than just going through the gate to get the synchro and rev match benefits, you'd get some extra engine braking out of the deal as well. At CotA's back straight I go from 5th to 2nd and clutch out on all intermediate gears.

 

I would try it on the street first well below redline. I would think it would work fine, but I am not 100% sure.

 

It works but as others have said your better off going down through the gears.carl

 

Way more likely to make the money shift into 1st when you are skipping. I always go through 4th on my way to 3rd.

 

All High-Performance Driving Schools like Bondurant, Skip Barber, etc recommend not skipping gears, ever. Going thru gears helps avoids miss shifts, develops a rhythm and extend gear life...

 

It does work properly when skipping gears, though of course it's a good idea to delay the downshift when skipping gears, to reduce the chance of an overrev.

I assume the car has no protection against a money shift even when using the auto-blip. Does anyone know otherwise?

 

I did 4-3-2 at track yesterday not letting clutch out and it blipped each gear down.

 

autoblip rev matchies going into any gear either on a slow up shift (where revs dropped too much) or on a downshift (from any gear into any gear).

 

What tracks require 5th gear?

 

Autoclub speedway does

 

In the NE, WGI, Summit Point, Mid-Ohio, Thunderbolt, Lightning, and VIR all require 5th gear. Here's an example including the 5-3 downshift.

 

I usually do 5-3 there also, or sometimes 5-3-2.

 

Nordschleife (fast driver will need 6th when speed limit removed in the Spring).

 

Right - no protection. Only way to offer protection would be to lock out any gate that would cause an over-rev at the given road speed.