I de tuned my car

Discussion in 'V8 5.0L Engine / Mods: Bolt-ons, Exhaust, Tuning' started by 16mach1, Dec 15, 2018.

  1. 16mach1

    16mach1 Well-Known Member

    Vehicle(s):
    2016 gt premium, 99 Roush
    Joined:
    May 19, 2016
    Location:
    PA
    Posts:
    137
    Likes Received:
    55
    Garage Profiles:
    1
    0   0   0
    Yes I said I de tuned my car. In a world where everybody is in the pissing contest of wanting more and more power I went the other way. I have been modding mustangs since they started making hipo cars back in the early 80's. 200 then 300 then 4 and 500hp. Street raced in Mexico for years. Now I have a 16 premium and like most S550 owners I was after the coveted 10 sec run so I started modding. I got the car to around Demon territory and the 10 sec run. I found out very quickly though that you can have too much power for the street. I do run drag radials all the time and even with these hooking on the street is near impossible. So after getting hole shotted by a few turds with hundreds less in horsepower I pulled some power. Other than bragging rights power that can't be put to the street is useless. You will never be able to realize the potential of your car on the street. If you are at the track every weekend different story. There are vids of a tuned NA 18 walking a 19 ZR1 in the 1/8 mile time after time. That is just crazy. A person near me just traded his demon on a GT350R as it is much more streetable. If I want to run at the track again I can in about 1/2 hour get my horses back. Now before all start saying that I could mod the car to get better traction, I know that, been there done that I do not want to get back on that hamster wheel. Atco.jpg
     
  2. sdiver68

    sdiver68 Well-Known Member

    Vehicle(s):
    18 GT PP1 10R80 Vert
    Joined:
    Jun 28, 2018
    Location:
    St. Louis
    Posts:
    694
    Likes Received:
    369
    Garage Profiles:
    1
    Occupation:
    Business and Information Systems Management
    0   0   0
    Which begs the question, what is the right level of power for the street?

    By the way I've been running 10 sec vehicles on the street for over 15 years. Have 1 soon to be 2 in my garage right now. I have "deturned" from high 9s to high 10s for many of the same reasons.

    I can see both sides.
     
    Username Taken likes this.
  3. OP
    OP
    16mach1

    16mach1 Well-Known Member

    Vehicle(s):
    2016 gt premium, 99 Roush
    Joined:
    May 19, 2016
    Location:
    PA
    Posts:
    137
    Likes Received:
    55
    Garage Profiles:
    1
    0   0   0
    Don't get me wrong with additional mods and a lot of focus ( starting in 2nd, feathering the cluth ect...) you can run hi power on the street, but in the scenario of light to light be prepared to be embarrassed by the snot nose kid in a WRX with AWD. Now if you have a little space to let "your horses run wild" you'll have the last laugh. The 99 in my signature is also a 10 sec car but it is built top to bottom front to back and hooks pretty good but as I said I am not looking to get into that anymore. I just want to turn my cooled seat on put George Jones in ( showing my age ) drop it in D and kick the ass of all foreign crap I can as well as an occasional camaro or vette. Stomp, hook and go is how you win on the street. Again totally different on a prepared track. All about what you want your car to do.
     
    Volstang, CobraR980 and 2slow like this.
  4. SpeedLu

    SpeedLu Well-Known Member

    Vehicle(s):
    2016 Mustang GT
    Joined:
    Feb 13, 2016
    Location:
    who cares
    Posts:
    1,670
    Likes Received:
    661
    0   0   0
    Unless you are blown and have tires that can hook, stop light to stop light you will sometimes lose to cars with heavy bottom torque. These engines draw their power at the top end and need room to gallop. A short little jaunt from one light to the next is not enough time for the Mustang to enter its stride. Those same cars beating your NA Mustang GT in a five second race through town will lose on the highway/interstate as the Mustang progresses through its power band and blows past them. Same goes for the track.

    However, I hate to be that guy because I'm guilty of it myself, but you shouldn't be street racing.
     
  5. Dfeeds

    Dfeeds Well-Known Member

    First Name:
    Dan
    Vehicle(s):
    1997 Mustang (5.0 HO swap), 2019 Mustang GT PP1
    Joined:
    Sep 30, 2018
    Location:
    Illinois, US
    Posts:
    297
    Likes Received:
    105
    0   0   0
    Oh hush lol. I think there's a clear difference between being some irresponsible punk and just giving it a little extra gas at the stop light to display a bit of dominance (or lack there of if you don't hook and lose to a civic... sad days). The former doesn't know when they're beaten, goes 90+ in a 45 around traffic, weaves around without a turn single signal, and will inevitably cause an accident. The latter backs off after a few seconds if the conditions aren't safe. Reminds me of when I watched a mini van take a frighteningly sharp turn to switch lanes, going 80 on the express way. My heart skipped a beat. I think most people just fail to comprehend that a car going 30 will not handle the same as a car going 60+. Anyways, interesting read. I was actually just having this conversation with a couple of coworkers the other day. One brought up how he's seen the s550 make a lot of power with very little extra work. We then went into how much extra power is really necessary on the street when you can't get the grip to actually put the power to the pavement. I opted for the pp1 over the pp2 because, as much as I like the track, the closest one is over 2 hours away from me, and a drag strip is at least 45 min away. My car will be spending 90% of its life on the road.
     
  6. ugstang17

    ugstang17 Well-Known Member

    Vehicle(s):
    17 GT White Plat Tricoat
    Joined:
    Oct 26, 2018
    Location:
    midwest
    Posts:
    715
    Likes Received:
    340
    0   0   0
    #6 ugstang17, Dec 15, 2018
    Last edited: Dec 15, 2018
    540 @ the rear wheel yielded [email protected]31 best for my 14 on a 275 DR. The17 I currently am working on makes 625 on the same dyno the 14 made 540 on. Still working on some drive ability issues, but like you short of a few passes to see what it will do next year for a bragging rite I am considering detuning to 56lb injectors, a twin 60mm TB, and a closed air intake to get better drive ability on the streets. The 6R80 on a kick down at 60pmh is blood chilling. 540RWHP on warm pavement with 555 G2 305's the 14 would wiggle slightly and go. Add 85 HP and the kick down is ludicrous on the very same tire. I found anything wanting to play with me around town when I had the 14 was pretty much at a disadvantage. The best run I had was against a Honda Civic that was clearly setup to run when I saw the roll bar in the car as he went by and egged me on. He shocked me as much as I shocked him. We had a nice talk at the next exit. Impressive car he had. So to detune to 550 or so after seeing what it does all out next spring will be a likely occurrence.........if I don't find a nice stick shift 15-17 already supercharged to trade it for between now and then. After two auto's I am missing a gear shift knob in my hand.
     
  7. SpeedLu

    SpeedLu Well-Known Member

    Vehicle(s):
    2016 Mustang GT
    Joined:
    Feb 13, 2016
    Location:
    who cares
    Posts:
    1,670
    Likes Received:
    661
    0   0   0
    Street racing is irresponsible because it involves uncontrolled conditions, ie. traffic, pedestrians, animals, unseen road hazards, etc. and you put other people at risk. I get the temptation when you drive a car like a Mustang and everyone wants to race you at every stoplight, but take it to the track where you can control for those variables and race in a safe environment where for the most part you are putting no one at risk but yourself. I'm not trying to be a killjoy, but street racing is illegal and dangerous. We have racetracks to scratch our wild itch.
     
    IPOGT likes this.
  8. Anthony 05 GT

    Anthony 05 GT Well-Known Member

    Vehicle(s):
    2005 Mustang GT, 2015 Mustang GT Premium
    Joined:
    Jun 4, 2015
    Location:
    Northern Harford County Maryland
    Posts:
    1,440
    Likes Received:
    452
    Occupation:
    Mechanic
    0   0   0
    161 mph? I'd figure around 127 to 130 mph
     
  9. ugstang17

    ugstang17 Well-Known Member

    Vehicle(s):
    17 GT White Plat Tricoat
    Joined:
    Oct 26, 2018
    Location:
    midwest
    Posts:
    715
    Likes Received:
    340
    0   0   0
    Corrected it in the reply. Yes 10.82 @ 131MPH on a 1.6x 60ft
     
    Coyote Red likes this.
  10. TripleB

    TripleB Well-Known Member

    Vehicle(s):
    2015 GT Snack Pack- Whipple Stage 2
    Joined:
    Jan 1, 2018
    Location:
    Idaho
    Posts:
    394
    Likes Received:
    160
    0   0   0
    Was this shortly after your trip to get a vasectomy
     
    DeerLick, Burkey, Bubba Bear and 2 others like this.
  11. Zinc03svt

    Zinc03svt Well-Known Member

    Vehicle(s):
    2018 GT shadow black, 10r80, PP
    Joined:
    Jun 3, 2018
    Location:
    USA
    Posts:
    1,193
    Likes Received:
    562
    Garage Profiles:
    1
    0   0   0
    I get it. Have an 11 second tune only car and it is a blast on the street. Especially in this cooler air it can fry the tires through end of 3rd. More power? Could be pretty debatable. A D1-X Procharger could be nice upgrade that is streetable below 4k rpms. ;).
     
  12. sdiver68

    sdiver68 Well-Known Member

    Vehicle(s):
    18 GT PP1 10R80 Vert
    Joined:
    Jun 28, 2018
    Location:
    St. Louis
    Posts:
    694
    Likes Received:
    369
    Garage Profiles:
    1
    Occupation:
    Business and Information Systems Management
    0   0   0
    P1-X for streetable power over D1-X.
     
  13. Allentown

    Allentown Well-Known Member

    First Name:
    Allen
    Vehicle(s):
    2018 GT
    Joined:
    Sep 17, 2018
    Location:
    Southeast
    Posts:
    501
    Likes Received:
    157
    Rating:
    100%
    1   0   0
    And that is why i run 3.15 gears with 305 tires and steeda stop the hop parts etc..... Power on the street is not the same as track performance. It is also why i run street suspension instead of track.
     
  14. BmacIL

    BmacIL Enginerd

    Vehicle(s):
    2015 Guard GT Base, M/T
    Joined:
    Sep 21, 2014
    Location:
    Naperville, IL
    Posts:
    13,143
    Likes Received:
    7,290
    Garage Profiles:
    1
    Rating:
    100%
    3   0   0
    I honestly feel the level of power that I'm at is enough to have a very fast street car, but one that you can use without having to be on questionable tires. I'm at 423 whp. I still have to modulate and respect the hell out of it, but I can actually get into it often.
     
    Volstang, Ronnoc, Notagain and 2 others like this.
  15. Interceptor

    Interceptor Daily Driver

    Vehicle(s):
    2017 Eco boost manual 202A
    Joined:
    Apr 3, 2018
    Location:
    Low country South Carolina
    Posts:
    436
    Likes Received:
    191
    0   0   0
    Have a 2.3 so I don't have such problems, would not NOS solve the problem of both hole shots and added HP? Never see anyone talk about it so I guess not doable on newer cars
     
    TURTL3 likes this.
  16. Ed M

    Ed M Well-Known Member

    First Name:
    Ed
    Vehicle(s):
    2018 GT convertible
    Joined:
    Jun 30, 2018
    Location:
    Las Vegas
    Posts:
    173
    Likes Received:
    102
    0   0   0
    Nitrous is doable but β€œfor off-road use only.”
     
  17. 66Bronc1

    66Bronc1 Well-Known Member

    First Name:
    JT
    Vehicle(s):
    2018 Mustang GT
    Joined:
    Jul 30, 2018
    Location:
    South West Florida
    Posts:
    229
    Likes Received:
    103
    0   0   0
    Nothing wrong with de-turning. If you are going to taker your car to the track or race it, by all means mod it, make it a drag car and go for mega HP. For regular driving on the street the GT provides way more than enough HP- stock and base in my opinion. I have a base GT and drive it "normally" on the street. It has way more HP than I will ever use- it accelerates effortlessly, is fun to drive and handles awesome. There's always someone that's going to be more aggressive with their foot, regardless the car- they can go by me, beat me off the line, pass me at 100 on the highway, I could care less- let them get in an accident or a ticket. I'll put put along and keep my insurance rates rock bottom low and enjoy multiple cars and trucks!
     
    GT 550, DavisCustoms, bjstang and 2 others like this.
  18. Zelek

    Zelek Well-Known Member

    First Name:
    Matt
    Vehicle(s):
    2017 Mustang GT Premium PP, 2018 Honda Accord Touring 2.0T
    Joined:
    Feb 11, 2016
    Location:
    Austin, TX
    Posts:
    2,234
    Likes Received:
    1,009
    Rating:
    100%
    2   0   0
    This sounds like the debate I'm having with myself on a Whipple or a centrifugal charger. Trying to get traction on street tires with a Whipple and 3.73's is going to be laughable. I'd have to change the gears to even have a chance, but I know I would need better rubber. This is another reason why I'm leaning on the centrifugal style ones for usable power in the 600-650ish range.
     
    Zinc03svt likes this.
  19. OP
    OP
    16mach1

    16mach1 Well-Known Member

    Vehicle(s):
    2016 gt premium, 99 Roush
    Joined:
    May 19, 2016
    Location:
    PA
    Posts:
    137
    Likes Received:
    55
    Garage Profiles:
    1
    0   0   0
    Even at 600-650 you will spin. I was at around 650 at the wheel and I have a 6R80 and it was just silly. At my age too much work and even worse with a stick. The other problem is that the more power you make the more things are going to break. clutches, spindles, oil pump gears, drive shaft ect... Been there done that. It takes deep pockets to get, keep and use high power and if you get it and don't use it what's the point. At 650 at the wheels you will get killed on the street by every M3, WRX and audi around and even the Focus RS will clean your clock unless you have a good distance to go and want to go over 125mph on the street. If I need to go faster I can drop the other tune in and go to the track. As always to each his own.
     
    Strokerswild and 808muscle like this.
  20. Angry50

    Angry50 Well-Known Member

    First Name:
    Fred
    Vehicle(s):
    2018 Mustang GT premium Performance Pack
    Joined:
    Nov 15, 2016
    Location:
    Jacksonville, FL
    Posts:
    1,262
    Likes Received:
    263
    0   0   0
    these are lies, i have a centri and its still not usable on the street.. you have to daily drag radials if you want to put your foot down
     
Loading...

Share This Page