Performance Tuning

Forum to discuss all things related to adding performance tunes to the Ford Fiesta ST.
BoostBumps
  • Poll
  • Sticky
POLL: What Tune are you using on your Fiesta ST?
11 12 13 14 15
Replies
293
Views
135,253
R
rallytaff
R
  • Sticky
Virtual Dyno Results Thread
12 13 14 15 16
Replies
316
Views
149,442
J
Jason@dizzytuning
frankiefiesta
  • Sticky
The ULTIMATE Dyno / V-Dyno Thread
2 3 4
Replies
61
Views
56,815
TyphoonFiST
TyphoonFiST
BoostBumps
  • Sticky
COBB AccessPort FAQ and Info Thread
Replies
15
Views
19,780
wroughtirony
wroughtirony
koozy
  • Sticky
Running FiST with E85 Blends - Discussion Thread
12 13 14 15 16
Replies
308
Views
136,290
Frisk
Frisk
dyn085
Self-Tuning to ease the boredom.
2 3 4 5
Replies
88
Views
34,877
Grsemky
Grsemky
Ryry01
Data logs stage 2 fiesta st180
Replies
0
Views
361
Ryry01
Ryry01
G
Sacramento area ford tuner?
Replies
2
Views
1,550
S
smalltraveler
R
California Smog and Stratified Tune
Replies
0
Views
423
R
RBYM
Tim_021
Custom engine build tune suggestions.
Replies
4
Views
1,613
Tim_021
Tim_021
Karl038
Upgraded engine mounts yay or nay and also springs versus coilovers?
Replies
9
Views
1,737
Scootny
Scootny
F
Aftermarket radiator Temperatures
Replies
6
Views
1,072
Capri to ST
Capri to ST
D
PumaSpeed Stage 3 vs Airtec Stage 3 Induction Kits
Replies
4
Views
2,308
XR650R
XR650R
Ganjie
Just added a 2jr intake
Replies
0
Views
518
Ganjie
Ganjie
AmosJ
Spark Plugs - Which is best?
Replies
6
Views
3,420
TyphoonFiST
TyphoonFiST
M
Stage 2 questions, what do i need?
Replies
13
Views
8,484
TyphoonFiST
TyphoonFiST
S
Boost flactuates at high rpm
Replies
3
Views
1,161
TyphoonFiST
TyphoonFiST
Stkid93
Air density correction factor vs power.
Replies
9
Views
2,340
W
Williamad33
C
High misfire count with no symptoms
Replies
0
Views
463
C
cometboyz
Benji85
Engine mount confusion
Replies
1
Views
810
WolfDampf
WolfDampf
TyphoonFiST
False knock....where to look?
2 3
Replies
51
Views
15,887
J
J031k
Plisky
Trying to diagnose excessive negative corrections
Replies
15
Views
2,522
B
babydiego
Yelbom15
Data Logging in Heat
Replies
1
Views
921
Dialcaliper
Dialcaliper
M
Trs stage 1
Replies
1
Views
919
M-Sport fan
M-Sport fan
T
Engine cutting off when accelerating hard.
Replies
17
Views
11,813
C
Cyraith
TemecFist
Please delete
Replies
8
Views
2,405
Intuit
Intuit
rotation_nation
Mountune 93 Tune - Remarkably Impressive (Data Inside w/Comparisons to Other Tunes)
2
Replies
39
Views
6,241
Jaytsvet
Jaytsvet
Stkid93
Daily driving hybrid/s280 turbo fists
Replies
19
Views
4,502
Zeille
Zeille
H
Pro tune
Replies
0
Views
607
H
HatedST
Grey42
Am i screwed completely or is there hope with my AP
Replies
4
Views
1,387
XR650R
XR650R
ConnorFist18
Fiesta st boost
Replies
10
Views
2,563
STRemy
STRemy
C
Tune HP Differences
Replies
1
Views
1,083
dhminer
dhminer
Knightwind
Remap done by Autotune!
Replies
1
Views
1,196
WolfDampf
WolfDampf
Jadar
How Necessary is a Rear Motor Mount?
2 3 4
Replies
68
Views
30,199
D
dailowill
S
2017 FieSTa Stock accessport?
Replies
1
Views
774
D
dailowill
pixelzombie
How many of you switch to an 87 octane tune during the winter months?
Replies
9
Views
2,458
Intuit
Intuit
F
Can I run Cobb Stage 1 while completely stock?
Replies
6
Views
4,659
Cneu
Cneu
B
COBB Tuning Help
Replies
5
Views
6,732
dhminer
dhminer
T
TS IWG on S 280
Replies
6
Views
1,480
ron@whoosh
ron@whoosh
rotation_nation
2017 Fiesta ST OEM+ Build: Modification Log w/Data
Replies
14
Views
2,779
dhminer
dhminer
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