Zeb8806
Well-Known Member
- Joined
- Oct 27, 2019
- Threads
- 4
- Messages
- 49
- Reaction score
- 39
- Location
- Rock Island, Il
- First Name
- Zeb
- Vehicle(s)
- 2015 Mustang Gt Premium PP
- Thread starter
- #1
Took my 15 GT PP to the track for the first time Friday night. Planned to take it pretty easy and was hoping to get into the 11s without breaking anything. Took a while to get the nerve up to get in the stage lanes lol, I was worried as the last car I took down the track had maybe 350whp and that was 5 years ago.
After a couple passes short shifting I stayed in it best I could on the 3rd pass. Hit the limiter in 4th before the traps. Pass was 11.872 at 126.9, 95.72 in the 1/8 and 2.017 60ft. Da was around 2400 at the start of the night but it had cooled down probably 10 degrees by my last and best pass.
Alright so here’s where the questions start. I’m running 305 45 18 NT05Rs, I had them at 22 psi and slipped the clutch at about 2k. Little bit of bark off the line but no wheel hop. I have the Steeda stop the hop kit and vertical links. I’m wondering if I should drop tire pressure more. I will start getting a little more aggressive on the launch but not a ton. I know a bias is ideal for a manual trans but it’s not in the cards this year. What do you radial guys run for pressure?
Here’s the big one, what gear ratio should I change to in the rear? It seems like most drop to 3.31 but I’m wondering if 3.55 will get me where I need be. Anyone regret going down to 3.31? Looks like 3.55 should get me to 137 in 4th, am I really going to run out that? Next year I’ll buy a shorter tire if I go 3.31 fyi.
Thanks!
After a couple passes short shifting I stayed in it best I could on the 3rd pass. Hit the limiter in 4th before the traps. Pass was 11.872 at 126.9, 95.72 in the 1/8 and 2.017 60ft. Da was around 2400 at the start of the night but it had cooled down probably 10 degrees by my last and best pass.
Alright so here’s where the questions start. I’m running 305 45 18 NT05Rs, I had them at 22 psi and slipped the clutch at about 2k. Little bit of bark off the line but no wheel hop. I have the Steeda stop the hop kit and vertical links. I’m wondering if I should drop tire pressure more. I will start getting a little more aggressive on the launch but not a ton. I know a bias is ideal for a manual trans but it’s not in the cards this year. What do you radial guys run for pressure?
Here’s the big one, what gear ratio should I change to in the rear? It seems like most drop to 3.31 but I’m wondering if 3.55 will get me where I need be. Anyone regret going down to 3.31? Looks like 3.55 should get me to 137 in 4th, am I really going to run out that? Next year I’ll buy a shorter tire if I go 3.31 fyi.
Thanks!
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