Anyone know the ideal shift point for the manual 05/06. I think I'll just need to dyno to find out. The last couple of races I've been in it seems a little past redline is the best. Not sure though. Peace.

 

How are you getting past redline? Do you have a tune that removed the rev limiter?

The gas cuts off and the engine slows way down at redline if you are stock.

 

I was wondering, i have a dyno sheet and want to optimize my shift points. how do you determine what rpm to shift at?

thanks

 

Find what rpm's your car makes it peak hp at and set your shift points 200-300 rpms above that. Usually that will yield the lowest et's at the track, at least for me it does.

 

To tell you the truth I don't know, I'm all stock. Some how I get past redline though, I'll call Ford.

 

The redline on the dash or the actual engine Redline, the actual is 6250 i beleive.

 

i have found that a 6250rpm shift is best for 1-->2, then 6400rpm for 2-->3 and 3-->4. this was powershifting though.

 

One forum member finds that shifting at 6500 rpm works best for him at the 1/4 mile drag strip. His naturally aspirated Mustang GT has a modified tune, CAI, and a few other bolt-ons, but uses stock tires and a stock gear, and it has a best time of approx. 12.6 sec. so far. He said that shifting at that rpm allows him to cross the finish line in 3rd gear, whereas using a lower rpm shift point would increase his e.t. by forcing him to shift into 4th before finishing.

 

I shift at 50-100 rpms below the fuel cutoff. So about 6200. But I think that the motor has a bit left in it so I want to tune it to raise the rev limiter to 6550 or so if it is safe.

For fun around town though, sometimes I love to plant my foot in first and shift hard right at the meaty part of the torque band for the 1-2. Damn thing will go sideways with the traction control off for about 40 feet and gain traction for a bit before grabbing third at 6200 and lighting them up again. And my engine is still stock. These cars are too much fun.

With all the wheelspin it probably isnt the fast as shifting it at 6200 though.

 

I think C&L intakes website has dyno sheets from evo or brenspeed that show stock and after mods plots.