Focus RS at the track... LOTS OF UNDERSTEER, OIL TEMPERATURE TOO HIGH!!! - Page 2
Close
Login to Your Account
Ford Focus RS Forum

Focus RS at the track... LOTS OF UNDERSTEER, OIL TEMPERATURE TOO HIGH!!!

This is a discussion on Focus RS at the track... LOTS OF UNDERSTEER, OIL TEMPERATURE TOO HIGH!!! within the Focus RS Photos and Videos forums, part of the Focus RS Forums category; 30psi cold can easily get i to the 40s hot. Tracking a car with 46psi cold is ludicrous and even Michelin recommends 35psi for track ...

Page 2 of 7 FirstFirst 1 2 3 4 ... LastLast
Results 11 to 20 of 62
Like Tree48Likes

Thread: Focus RS at the track... LOTS OF UNDERSTEER, OIL TEMPERATURE TOO HIGH!!!

  1. #11
    RS Senior Member
    Join Date
    Nov 2015
    Location
    SoFlo
    Posts
    130
    Member #
    1939
    Liked
    65 times
    Mentioned
    3 Post(s)
    30psi cold can easily get i to the 40s hot. Tracking a car with 46psi cold is ludicrous and even Michelin recommends 35psi for track use.

    The video didnt look like a ton of understeer. Vorshlag is probably mostly interested in complaining about cars to sell products.

  2. #12
    RS Expert focus pilot's Avatar
    Join Date
    Feb 2015
    Location
    poconos
    Posts
    2,054
    Member #
    18
    Liked
    974 times
    Mentioned
    38 Post(s)
    the effects of chosen tire pressures on vehicle dynamics cannot be understated. remember, part of the reason for the 46 psi suggestion was for stability under breaking.
    Keeping it pinned down while all cylinders are -6 is not good practice

    Money comes and goes, RS don't.
    Dude your life is also ticking away.
    Buy th damn car and mod away.

    The ST is an ST that's all it will ever be.

  3. #13
    RS Senior Member
    Join Date
    Mar 2016
    Posts
    110
    Member #
    3049
    Liked
    110 times
    Mentioned
    13 Post(s)
    Quote Originally Posted by JahjaMan View Post
    All I saw was the info at the start with "30psi cold" and I knew these guys didn't know wtf they're talking about.
    Didn't bother watching the rest.

    If you don't take factory spec into consideration and complain of understeer, you're an idiot. Period.
    30psi cold is probably [email protected] on the track. The car does understeer as it could stand to loose 200lbs of front axle weight. It handles the weight well but I would not call it balanced. Front bias, yes balanced no.

    The EvoX feels less front heavy but more tail happy at traction limits. Haven't driven the both back to back at the track yet though.

    Sent from my SM-G920V using Tapatalk

  4. Remove Advertisements
    FocusRS.org
    Advertisements
     

  5. #14
    RS Guru Slider's Avatar
    Join Date
    Apr 2015
    Location
    Canada
    Posts
    3,046
    Member #
    878
    Liked
    1894 times
    Mentioned
    60 Post(s)
    It was already discussed in the other thread that he was driving and left foot braking, throwing the bespoke AWD into a frenzy making it compete against him.
    stuntman likes this.
    2016 Ford Focus RS
    TunePlus | PTE | ETS | Cobb | Eibach | Mountune | UPR | Enkei

  6. #15
    RS Expert focus pilot's Avatar
    Join Date
    Feb 2015
    Location
    poconos
    Posts
    2,054
    Member #
    18
    Liked
    974 times
    Mentioned
    38 Post(s)
    Quote Originally Posted by stuntman View Post
    30psi cold can easily get i to the 40s hot. Tracking a car with 46psi cold is ludicrous and even Michelin recommends 35psi for track use.

    The video didnt look like a ton of understeer. Vorshlag is probably mostly interested in complaining about cars to sell products.
    none of these recommended numbers make any sense to me. the rear is 700lbs lighter so track pressures should be around 10 psi less in the rear, so I guess it depends one what you choose to believe
    Keeping it pinned down while all cylinders are -6 is not good practice

    Money comes and goes, RS don't.
    Dude your life is also ticking away.
    Buy th damn car and mod away.

    The ST is an ST that's all it will ever be.

  7. #16
    RS Master Rallycross's Avatar
    Join Date
    Feb 2016
    Location
    Florida
    Posts
    423
    Member #
    2770
    Liked
    398 times
    Mentioned
    30 Post(s)
    Would not trust this guy to test a Yugo. 30lbs? Understeer? Squalling tires? Any tire pressure buildup was caused by severely underinflated, 300 treadwear tires on the heavy stock rims, rolling over on the sidewalls and flexing like crazy. He's lucky they didn't fail and blow out. The load, as when trail braking into in a corner by the RS on the front tires is enormous, it aint a miata. If you don't have a pyrometer, get some tire crayon and mark your sidewall to check for rollover. Start with high pressures and you can always reduce them till sidewall wear noted. They didn't recommend 46 lbs cold for a fully loaded car for no reason, and braking and turning at speed is harder on a tire than just rolling around with the family and groceries in the back. As far as autocross pressures, 40 second runs? Need sidewall bite, run lower pressures. Not any worries about tire heat buildup is there? Sidewall flex is a major tire killer. Track use, start with higher pressures.
    Last edited by Rallycross; 08-06-2016 at 09:14 AM.

  8. #17
    RS Master Bossing's Avatar
    Join Date
    Oct 2015
    Location
    So. FL
    Posts
    409
    Member #
    1588
    Liked
    511 times
    Mentioned
    21 Post(s)
    ^Yup... start on the higher side than stone cold low.

    Personally, based on my track driving habits, I found my sweet spot at 39psi dead cold. I noticed my laps were at least a second faster. I got them to 45'ish psi hot. When I started lower (cold) I noticed a bit more understeer/plowing and lap times were obviously slower.
    __________
    '17 Shelby GT350R - Race Red; Electronics Pkg.
    '17 Ford F150 Raptor Supercrew - Avalanche Gray
    '17 Viper ACR Extreme - Ceramic Blue
    '16 Porsche GT4 - Sapphire Blue, CF Buckets, PCCB
    '07 Mazda MX5 Miata - PRHT

  9. #18
    RS Pro mofoRS's Avatar
    Join Date
    May 2015
    Location
    Portland, OR
    Posts
    1,652
    Member #
    940
    Liked
    793 times
    Mentioned
    13 Post(s)
    Hot tires only really go up in temp 2-3 psi and that's working them hard.
    08 STI Forged built HMS stage 3 short lock, HTA68 td06 SL2 8cm turbo, Cobb cai with air box, perrin Inlet hose, Radium fuelrails, tgv delet, Tomei equal length headers, Tomei uppipe, 3" Perrin downpipe with two cats, 3" vibrant exhaust, Cobb ID1000cc injectors, Cobb flex fuel kit, Cobb AP, Radium catch can, Radium FPR, AEM fuelpump, ACT clutch, misimoto alum radiator, Perrin pully, Perrin pars, Perrin rear 22mm swaybar, super pro diff bushings, whiteline steering rack bushings,

  10. #19
    Banned
    Join Date
    Feb 2016
    Location
    Los Angeles, CA
    Posts
    180
    Member #
    2612
    Liked
    174 times
    Mentioned
    13 Post(s)
    Quote Originally Posted by mofoRS View Post
    Hot tires only really go up in temp 2-3 psi and that's working them hard.
    I get 5-6 PSI hot variance on MPSS on a 3200 lbs car.
    mofoRS likes this.

  11. #20
    RS Pro mofoRS's Avatar
    Join Date
    May 2015
    Location
    Portland, OR
    Posts
    1,652
    Member #
    940
    Liked
    793 times
    Mentioned
    13 Post(s)
    Quote Originally Posted by rever5e View Post
    I get 5-6 PSI hot variance on MPSS on a 3200 lbs car.

    Nutts then! Maybe your in a hotter climate and or have a better tire pressure gauge. Most I saw was 3psi in my 510 Datsun (1,845lbs).
    08 STI Forged built HMS stage 3 short lock, HTA68 td06 SL2 8cm turbo, Cobb cai with air box, perrin Inlet hose, Radium fuelrails, tgv delet, Tomei equal length headers, Tomei uppipe, 3" Perrin downpipe with two cats, 3" vibrant exhaust, Cobb ID1000cc injectors, Cobb flex fuel kit, Cobb AP, Radium catch can, Radium FPR, AEM fuelpump, ACT clutch, misimoto alum radiator, Perrin pully, Perrin pars, Perrin rear 22mm swaybar, super pro diff bushings, whiteline steering rack bushings,

Page 2 of 7 FirstFirst 1 2 3 4 ... LastLast

Home | Forum | Active Topics | What's New

Sponsors

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. My car thinks the ambient temperature is 0F
    By turb0charged in forum Focus RS TroubleShooting
    Replies: 89
    Last Post: 03-10-2019, 04:31 PM
  2. First oil change before or after track day?
    By Kung Fu English in forum Focus RS Maintenance
    Replies: 20
    Last Post: 08-05-2018, 05:31 PM
  3. COBB Accessport Stage 1 tuned Focus RS at High altitude
    By alphadark in forum Focus RS Performance
    Replies: 18
    Last Post: 07-21-2016, 03:05 PM
  4. Replies: 15
    Last Post: 09-18-2015, 04:03 AM
  5. Replies: 0
    Last Post: 02-04-2015, 06:25 AM

Search tags for this page

focus rs oil temps

Click on a term to search our site for related topics.