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2013 Brembo LCA?

5K views 56 replies 17 participants last post by  wheelman 
#1 ·
I have read that the Brembo package comes with GT500 LCAs. Can someone please confirm and demonstrate with evidence that it does? Either way, I get poor traction with the stock 3.31 and plan to go 4.10 in the spring. If at this time I have GT500... one, they don't perform well, two what upgrade would be best for the money as there are many options out there? Keep in mind I have a DD, don't plan on doing a supper charger or turbo, might track, will do a cold air intake and tune when gear is done, but want a solid 0-60 time.
 
#9 · (Edited)
Track pack has the GT500 LCAs, according to the Ford Racing pdf catalog. They are visually the same, i looked myself. The standard GT LCAs are black and the track pack ones are silver.

I'm not sure if Brembo package has the same upgrades.

Edit: From the Catalog

CONTROL ARM UPGRADE KIT
M-5538-A Fits 2005-2013 Mustang GT and V6
• Standard equipment on 2007-2013 Shelby GT500,
2013 Mustang with Track Pack, and 2011-2013
Mustang GT with manual transmission
• Increased bushing durometer and
stiffness for higher
horsepower applications
• For race applications see
tubular control arm kits
M-5649-S or M-5649-R1
 
#13 ·
How big of a tire would he need to stay in 4th?
Something around 29".:p:
The most common tire used is a 275/60-15 which is 28" tall. Not many choices in a 29".

For the track with the manual, the best gear would actually be a 3.90 with a 28" tire. Because the 3.90 gear is made by Motive and not Ford most don't want to use it.

For an auto a 3.31 gear with a 28" tire is the ticket.
 
#14 ·
Overall, going from a 3.31 to 4.10 is 200-550 rpm difference. If I'm going to put in a gear, I need to make it count and also set me apart from the 3.73 I missed out on with the tack pack. I will need larger tires! That's for another tread and has been talked to death. Thanks for the input.
 
#16 ·
I have 3.15, so 3.31 is the ideal gear? What about stock 315 tires which is what im putting on my rims, stay 3.15 or go 3.31
Autos ideal gear is a 3.31 with a torque convertor.

---------- Post added at 10:12 PM ---------- Previous post was at 10:11 PM ----------

Do what u want because it is your car but this weekend i went to the track and one of the guys ended up going back to 3.73 from 4.10, he has a track pack just like mine.
I could see if you only drove it on the streets how 4.10 would be nice but a good track course or drag strip and I'd rather have 3.73 myself.
 
#18 ·
However, BBP does have all the other track pack stuff bar the oil cooler, torsen, slightly bigger rad and grippier brake pads.
 
#24 ·
There is no way that I would do 3.31 on an auto for the cost of the upgrade it wouldn't affect it enough....in my 2011 5.0 auto 3.73s were perfect at the track and on the street...don't listen to them do the frpp 3.73s....then you can do a lower torque convertor and still be street able IMHO

---------- Post added at 06:29 PM ---------- Previous post was at 06:28 PM ----------

Oh and if anyone wants the gt500 Lcas I have a set for cheap and the solid panhard bar and the shocks struts and springs just FYI
 
#25 ·
There is no way that I would do 3.31 on an auto for the cost of the upgrade it wouldn't affect it enough....in my 2011 5.0 auto 3.73s were perfect at the track and on the street...don't listen to them do the frpp 3.73s....then you can do a lower torque convertor and still be street able IMHO

---------- Post added at 06:29 PM ---------- Previous post was at 06:28 PM ----------

Oh and if anyone wants the gt500 Lcas I have a set for cheap and the solid panhard bar and the shocks struts and springs just FYI
I have a manual with stock 3.31, and you just in a round about way supported my argument for going to a 4.10 in stead of 3.73, just for the cost of up grade, limits I have on budget, DD, and majorly only concerned with 0-60 on the street.

---------- Post added at 07:20 PM ---------- Previous post was at 07:16 PM ----------

He was bone stock just axel back and suspension from bmr.
Thanks for the information about the mods on the gear swap. However, I think a tune could help with curving the torque and HP as to better launch a 4.10, and use the higher RPMs. Did this happen in this case? What do you think in general about a tune and gear?
 
#26 ·
If you want you dont have to get a tune just take it to ford and they will plug it in the computer and change the car to 3.73 or 4.10 to correct the speedometer, i did that with my tires when i got wider rims.
I am not a fan of loosing my warranty over and intake and a tune, i would focus on looks and suspension and if you can afford it do a force induction kit that u like. That is all my opinion some make look at it different.
 
#28 ·
just know that the ford dealership cannot adjust the automatics for new gears...some will say they can then you get the gears and go up there and they oh sorry we thought we could (personal experience)....well they can't trust me!!!only gears that where an option from the factory...so manuals you can get 3.31, 3.55, 3.73 autos 3.15
 
#40 ·
I didn't have a torque convertor... I had cai, tune, 3.73 gears, and drag radials

I ran only 1/8th mile stuff so I am not positive on the 1/4 mile
I was running low 1.8 60fts, 7.7 et, and 93ish mph

---------- Post added at 06:56 PM ---------- Previous post was at 06:55 PM ----------

Automatic of course
Well 1/8th mile would be different cuz you wouldn't have to try to stay in 3rd or 4th like in the 1/4
 
#41 · (Edited)
maybe but IMHO going from 3.15 to 3.31 is an absolute waist of money in fact I know a friend of mine was roushcharged with an auto 3.73 gears doing high 9s consistently so it all depends I guess on your overall goal if you are building a 1000 hp 5.0 then yeah maybe 3.73 gears would be too much but if you going to do minor mods I say the 3.73 is perfect... It's your car and your money so ultimately it up to you...If you go with 3.31 gears you pretty much won't feel them on the street nor will they net you much on the track
 
#42 ·
maybe but IMHO going from 3.15 to 3.73 is an absolute waist of money in fact I know a friend of mine was roushcharged with an auto 3.73 gears doing high 9s consistently so it all depends I guess on your overall goal if you are building a 1000 hp 5.0 then yeah maybe 3.73 gears would be too much but if you going to do minor mods I say the 3.73 is perfect... It's your car and your money so ultimately it up to you...If you go with 3.31 gears you pretty much won't feel them on the street nor will they net you much on the track
Did you mean going from 3.15 to 3.31? Cuz you said going to 3.73 is a waste but then said they're perfect for minor mods. Just tryna clear it up.
 
#47 ·
Well first of all most people who truly want to go fast don't stay N/A so I am not going to search for hours to find a list of people who use 3.31 vs 3.73 it just doesn't matter to me...secondly I seriously doubt that the people who are asking 3.31 or 3.73 are going to have the money or effort to make a sub 11 sec n/a mustang. So with that said I know of at least five sub 10 second mustang gt autos that are running 3.73s and I could also probably find a lot more if I wanted to. Also did you see the huge list of things that must be done to an n/a car to get it down to the 10s the 3.31 vs 3.55 vs 3.73 gearing probably had little to do with him hitting the 10.9 mark the is just not enough of a sample group to prove your point....lastly as I stated before I care not what you run in you car or don't run in you car I was simply stating that in order to get the most out of you minor bolt on automatic 2011 mustang gt 3.73 is the choice, and the 3.31s will not give you a large result....you can have the last word if you would like....
 
#52 ·
I have a friend from Long Island that has a fully loaded auto with a converter, exhaust, tire, tune, and 3.31's. I can post a video if need be. His best time to date is 11.4. Please show me some real world data to prove 3.73's are good gear for the auto. Fact: anything over a 3.31 will have an auto shifting into 4th before the stripe. Shifting into 4th will slow you down. Hence the reason there are no "fast" N/A autos running a 3.73.
 
#48 ·
If you read through this thread it will tell you a little about what we mean for gear size in the 1/4. Like the other guy said do whatever you want for your car but you should get all the info about what will happen before you do a mod. I read a better one somewhere but can't find it.

http://www.modularfords.com/f259/new-times-cai-testing-184794/

---------- Post added at 04:37 AM ---------- Previous post was at 04:35 AM ----------

There's also this if it works. The attachment won't work on my phone.

http://www.modularfords.com/f259/tire-gear-spreadsheet-183536/
 
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