blmustang01

I have code GG on door jamb sticker. I have replaced shifter and bracket with Barton short throw. No more grinding at all yay but it's still sluggish and throttle response sucks. Cat delete? 1-piece drive shaft? What do I do to make this thing more responsive. It's also why the window sticker had a -995 deduction on the "axle promo package" to sell these cars as no one wanted it with these gear ratios.

Still rly nice mustang but it's so sluggish on the start I hate it. 1-12/20mph for 1st gear?

I gotta power shift this car at high rpm's through gears 1-3.

What gear ratio would allow 1-30/40mph in 1st gear @ 2k-2.5k rpm's and at 2k rpm @ 70mph?

Camster

You'd manage the 70mph rpms with 3.55s or 3.73s,but first speed would top out at a lower speed than you have now,not 30-40mph.
You can't have both.

blmustang01

Yeah, that's what I thought too! thanks.

bstang14

I did 3.90 gears and frpp tune. Night and day. It's a beast off the line now.

scottmach

It's not the gears, it's the stock tune. I'm assuming you haven't tuned it yet?

blmustang01

Cool, I'll take that into consideration.

Yep, it is all stock. It is not tuned since I mainly run 87 octane, does a tune require premium fuel or depending on the tune?

JimC

Depends on the tune. You can get a tune for 87 if you want and you don't have to get a tune for premium fuel.

Pr0cl1v1ty

The higher the gear, the smaller the range of each gear making your car faster, you will be shifting more frequently, also less MPG at highway speeds as you will be in the last gear at a highr RPM.

The tune can be customized to be 87, 91, 93 octanes. You will see the most performance gain in the 93 Octane tunes.

BrazenStang

Tune it first. Plus, the speedo needs to be adjusted via a tune after you install gears.

bstang14

The frpp tune certainly woke it up but the 3.90's made it real fun to drive. I may do 4.10s at some point although I do have a Whipple in the future somewhere. I think that may push back to my original 3.31 with the boost. We will see.....

Stock tune is a dog off the line.