General Discussions Discuss anything in general about your 5.0 Mustang that doesn't belong within the other categories here. |
Sponsored Ads |
|
Welcome to DFW50s.com
|
Register to remove these ads.
08-22-2013, 12:49 AM
|
#121
|
Senior Member
Join Date: Jun 2012
Location: Keller
Age: 61
Posts: 1,006
|
Stock tire size on my '12 was nearly 28" tall. I run 295/55's which are about the same height as stock. Car came equipped with 3.55's from the factory. I cross the traps at 7200 in 4th (MT82). 28" works quite well with 3.55's.
__________________
|
|
|
08-22-2013, 10:10 AM
|
#122
|
Senior Member
Join Date: Jun 2012
Posts: 496
|
Mine was shifting into 4th right before the finish line with my 3.15's. It short shifted at 7000. I think I can avoid this shift all together if I just raise the 3-4 shift point. This SHOULD cut some ET as well since I'm removing a shift. Right? Not sure how much though.
__________________
2012 GT/CS KB2.8LC 596/487
|
|
|
08-22-2013, 10:19 AM
|
#123
|
Old School
Join Date: Oct 2012
Age: 46
Posts: 1,358
|
Originally Posted by downtime!
Stock tire size on my '12 was nearly 28" tall. I run 295/55's which are about the same height as stock. Car came equipped with 3.55's from the factory. I cross the traps at 7200 in 4th (MT82). 28" works quite well with 3.55's.
|
Solid point, but you are also going 130+, he does like 114... He would be MUCH lower in the powerband thus killing his time. I think he should get some 26 inch tires personally so it's as close to redline in fourth as possible.
__________________
86 GT 374 Billet "W" w/ 72MMs
90 GT 351 Dart short stroke w/ YSi
|
|
|
08-22-2013, 10:43 AM
|
#124
|
Senior Member
Join Date: Mar 2013
Posts: 381
|
28" tire and just make more power.
__________________
My daily is faster then your race car
|
|
|
08-22-2013, 10:49 AM
|
#125
|
Senior Member
Join Date: Jun 2012
Posts: 5,594
|
Originally Posted by STROKD
Solid point, but you are also going 130+, he does like 114... He would be MUCH lower in the powerband thus killing his time. I think he should get some 26 inch tires personally so it's as close to redline in fourth as possible.
|
Assuming my redline is set to 7200 RPM, in 4th gear (1.32:1) with 3.55s and a 27" tire, I'll be turning around 123-124 MPH.
A 26" tire would basically give me 118-119 MPH at 7200 RPM redline
I think a 26" tire height is my best bet for the power level I will have my car at for a long while before boost. I should never trap more than 118-119 if I'm around 420-430 rwhp (after E85 conversion and maybe a TB). Right?
|
|
|
08-22-2013, 11:11 AM
|
#126
|
Senior Member
Join Date: Jun 2012
Posts: 697
|
I'm right at the stock rev limiter in fourth gear when crossing the quarter mile.
3.73s
28.5" tall tire (305/35-20)
114.5mph
Originally Posted by DirtyD
I should never trap more than 118-119 if I'm around 420-430 rwhp (after E85 conversion and maybe a TB). Right?
|
I dunno about you, but I would expect at least that kinda trap for a modded coyote...
__________________
"If this was like, a thousand years ago, I'd be a Picasso. I'd be one of those dudes that cut his damned ear off."
|
|
|
08-22-2013, 11:16 AM
|
#127
|
Senior Member
Join Date: Aug 2013
Posts: 186
|
Originally Posted by DirtyD
Assuming my redline is set to 7200 RPM, in 4th gear (1.32:1) with 3.55s and a 27" tire, I'll be turning around 123-124 MPH.
A 26" tire would basically give me 118-119 MPH at 7200 RPM redline
I think a 26" tire height is my best bet for the power level I will have my car at for a long while before boost. I should never trap more than 118-119 if I'm around 420-430 rwhp (after E85 conversion and maybe a TB). Right?
|
You will want to give yourself a little cushion. Peak power with the stock intake is going to be around 6,500. 118 with a 27" tire and 3.55 is ~6,900.
|
|
|
08-22-2013, 11:37 AM
|
#128
|
Senior Member
Join Date: Jun 2012
Posts: 5,594
|
Originally Posted by 46Tbird
I'm right at the stock rev limiter in fourth gear when crossing the quarter mile.
3.73s
28.5" tall tire (305/35-20)
114.5mph
I dunno about you, but I would expect at least that kinda trap for a modded coyote...
|
Originally Posted by wbt
You will want to give yourself a little cushion. Peak power with the stock intake is going to be around 6,500. 118 with a 27" tire and 3.55 is ~6,900.
|
Brent is/was trapping around 118 with his setup consisting of Boss IM, and all those other goodies. I would think I would be slightly below that, but I don't mind going with a 27" tire at all. Actually, that would be nice to drive to the track on a tire setup that wasn't 1" shorter OD in the rear. LOL
But yes, in perfect math/conditions, a 27" tire would but me basically at 120 at 7000 RPM. 120 MPH should be a low-mid 11 sec pass, correct?
|
|
|
08-22-2013, 12:06 PM
|
#129
|
Senior Member
Join Date: Jun 2012
Location: Keller
Age: 61
Posts: 1,006
|
Mine has crossed the line at 7200 since day one, naturally aspirated at 115 mph and blown at 130 mph. Gearing is gearing.
__________________
|
|
|
08-22-2013, 12:07 PM
|
#130
|
Senior Member
Join Date: Aug 2013
Posts: 186
|
Originally Posted by DirtyD
Brent is/was trapping around 118 with his setup consisting of Boss IM, and all those other goodies. I would think I would be slightly below that, but I don't mind going with a 27" tire at all. Actually, that would be nice to drive to the track on a tire setup that wasn't 1" shorter OD in the rear. LOL
But yes, in perfect math/conditions, a 27" tire would but me basically at 120 at 7000 RPM. 120 MPH should be a low-mid 11 sec pass, correct?
|
Yes all things considered.
|
|
|
08-22-2013, 12:07 PM
|
#131
|
Senior Member
Join Date: Jun 2012
Location: Keller
Age: 61
Posts: 1,006
|
Originally Posted by DirtyD
Brent is/was trapping around 118 with his setup consisting of Boss IM, and all those other goodies. I would think I would be slightly below that, but I don't mind going with a 27" tire at all. Actually, that would be nice to drive to the track on a tire setup that wasn't 1" shorter OD in the rear. LOL
But yes, in perfect math/conditions, a 27" tire would but me basically at 120 at 7000 RPM. 120 MPH should be a low-mid 11 sec pass, correct?
|
My best n/a pass was 11.67 @ 119, so yep, pretty close.
__________________
|
|
|
08-22-2013, 12:19 PM
|
#132
|
Senior Member
Join Date: Jun 2012
Posts: 697
|
If you're buying a dedicated drag wheel/tire setup, get the 28s. They will work fine with your n/a combo and give you room to grow.
__________________
"If this was like, a thousand years ago, I'd be a Picasso. I'd be one of those dudes that cut his damned ear off."
|
|
|
08-22-2013, 12:47 PM
|
#133
|
Senior Member
Join Date: Jun 2012
Posts: 5,594
|
Originally Posted by 46Tbird
If you're buying a dedicated drag wheel/tire setup, get the 28s. They will work fine with your n/a combo and give you room to grow.
|
You're right. It doesn't hurt to give room for growth. Plus when I go boost in years down the road and swap to 3.31s, that will help prevent me from going into 5th hopefully...
|
|
|
08-22-2013, 09:01 PM
|
#134
|
Senior Member
Join Date: May 2013
Location: Dallas/Plano
Age: 34
Posts: 561
|
It doesn't really matter. We're all slow.
__________________
2014 Oxford White 5.0 MT-82
|
|
|
08-23-2013, 12:58 AM
|
#135
|
Old School
Join Date: Oct 2012
Age: 46
Posts: 1,358
|
Originally Posted by DirtyD
Assuming my redline is set to 7200 RPM, in 4th gear (1.32:1) with 3.55s and a 27" tire, I'll be turning around 123-124 MPH.
A 26" tire would basically give me 118-119 MPH at 7200 RPM redline
I think a 26" tire height is my best bet for the power level I will have my car at for a long while before boost. I should never trap more than 118-119 if I'm around 420-430 rwhp (after E85 conversion and maybe a TB). Right?
|
soundsa bout right... also, the Quick Times are bias ply, they grow about an inch when they are wound up, so you can prob go closer to 122... ![Favorites13](images/smilies/favorites13.gif) Absolute WORST case after you have the tires, bump the revlimiter 100-200 rpm if you are tagging it. Those motors will spin to the moon and not g.a.f.
__________________
86 GT 374 Billet "W" w/ 72MMs
90 GT 351 Dart short stroke w/ YSi
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
|