Ohhh.... that explains it.
yellowgtbeast- the T4MO has a rev limit of 7000rpms. It has been confirmed by many on here. I saw it was set like that in my EEc Tuner's stock setting and couldn't believe my eyes, so I showed Dave at Kauffman's what I was looking at to see for sure that I was interpreting it correctly... sure enough, 7000rpms is where its at from the factory. I have made dyno puls over 6300rpms, and I have BURIED (not on purpose) my stock tach a number of times doing burnouts and such.
MTO- I bet it'd be close. I know and AODE could cross in 2nd with 2.73s with a trap speed of 90mph because my old AODE vert didn't shift until ~92mph into 3rd. I guess a 3.27 might be the ideal gear ratio for a stock car wanting to cross in 3rd since a shift into 4th with 3.55's and 3.73's has a stock car crossing at under the peak HP rpm.
Low- I know you won't want to cross in 3rd with 3.73's, but 3.55's would be close. Actually, by using the analyzer on http://www.mustangworks.com and putting in 3.55 gears and a 25.7" tall tire (which is near stock), it shows a RPM reading of 5700 in 3rd running 92mph. Since 1/4 trap speed is actually an average speed of the last 66' of the track, you will probably cross at like 95-96mph which yields a rpm reading 5900rpms. So, since the stock setup is done by 5200-5500, a shift to 4th might be the better choise here. If it was my car I'd get some 27" tires and have at it since you would NOT have to shift into 4th and you'd cross at just a hair over the peak which is ideal. Sorry for going a little off topic 94tang, but it might help you and others to know and think about this.
MTO- I bet it'd be close. I know and AODE could cross in 2nd with 2.73s with a trap speed of 90mph because my old AODE vert didn't shift until ~92mph into 3rd. I guess a 3.27 might be the ideal gear ratio for a stock car wanting to cross in 3rd since a shift into 4th with 3.55's and 3.73's has a stock car crossing at under the peak HP rpm.
Low- I know you won't want to cross in 3rd with 3.73's, but 3.55's would be close. Actually, by using the analyzer on http://www.mustangworks.com and putting in 3.55 gears and a 25.7" tall tire (which is near stock), it shows a RPM reading of 5700 in 3rd running 92mph. Since 1/4 trap speed is actually an average speed of the last 66' of the track, you will probably cross at like 95-96mph which yields a rpm reading 5900rpms. So, since the stock setup is done by 5200-5500, a shift to 4th might be the better choise here. If it was my car I'd get some 27" tires and have at it since you would NOT have to shift into 4th and you'd cross at just a hair over the peak which is ideal. Sorry for going a little off topic 94tang, but it might help you and others to know and think about this.
Jeez, I didnt realise how short your gears became with 3.73's. It seems that youre 5th gear has to be way over driven to keep the RPMs down at 60 cause Im at like 2800 at 60 in the talon. But on my old setup I trapped 101 in 3rd gear, and I wish I could take it higher in each gear cause 1st is almost a waste.
-Dallas J
-Dallas J