11:50 -------------------------------------------------------------------------------------
With a dry track, time to change to the sticky 595RSR. Left cold pressures same as last time. Feels so much better n stable
Before:
Setup:
Dampers: 15/30 F/R
Tyres: 595RSR 1.9/2.4bar F/R Cold
Weight: 25% fuel, me & dad
During:
Track Condition: dry & warm
Track feedback:
- Grooved disc whirr becoming noticable
- Slight high speed Port Froids understeer
- Good brake force
- Occasional slight rear lockup at 50/50 bias
- WOT low speed exit good grip
Track Times:
1.30
1.25
1.27 traffic
1.24
1.22
1.21
1.21
Laptimes: Outer Circuit
09:40, T1R 3/3bar, passenger, 100% fuel =
1.34
1.32
1.30
1.30
1.30
1.31
10:30, T1R 2.9/3.0bar, driver, 75% fuel =
1.25
1.24
10:45 T1R 2.9/3.0bar, driver, 50% fuel =
1.23
1.24
11:50, 595RSR 2.1/2.7bar, passenger, 25% fuel =
1:30
1.25
1.24
1.22
1.21
1.21
once again consistant improvements as the track dries and especially changing to a gripper 595rsr, I reached the same 1:21 best time as last time, even with a passenger onboard.
13:33 Eastern Circuit Sight Lap -------------------------------------------------------------
Refuelled during lunch, found she actually does 16mpg on track at full chat
We would now change over to the Eastern circuit layout so had to go for a sighting lap
Before:
Setup:
Dampers: 15/30 F/R
Tyres: 595RSR 2.0/2.7bar F/R
Weight: 100% fuel, driver only
During:
Track Condition: dry & warm
Track feedback:
- Notice louder brake disc whirring plus slight whirr during right turns
14:30 -------------------------------------------------------------------------------------
The louder whirring noise was concerning, checked the disc and ABS ring n wheel bearing but they’re all fine? Adjusted pressures to 2.0/2.7bar f/r and found the brake pedal locknut was loose causing the pedal to drop abit. Lifted the brakes back up and loosened the throttle cable to drop the pedal lower.
Before:
Setup:
Dampers: 15/30 F/R
Tyres: 595RSR 2.0/2.7bar F/R
Weight: 100% fuel, me & andy
Misc changes:
- Bias 50/50
- Readjusted loose brake pedal shaft
- Loosen & lowered throttle pedal
- Check if wheel bearing or ABS ring was whirring, all ok
During:
Track Condition: dry & warm
Track feedback:
- Brakes bite much higher, can apply more pressure without touching throttle
- Brake pedal briefly became very high, then return to normal height
- Brake probably faded later on?
Track Times:
1.33
1.28
1.42 traffic
1.32 traffic
1.30 traffic
1.28 traffic
1.31 traffic
1.27
1.28
1.29 traffic
1.26
I luv this eastern circuit layout, such a thrilling challenge.
15:30 -------------------------------------------------------------------------------------
Brakes were too high so lowered it abit and went out with colin.
Before:
Setup:
Dampers: 15/30 F/R
Tyres: 595RSR 2.0/2.6bar F/R
Weight: 75% fuel, me & colin
Misc changes:
- brake pedal slightly lower
During:
Track Condition: dry & warm
Track feedback:
- Brake pedal slightly too low
- Good brake force
- No rear lockup
- Good high speed direction change
- Last corner front tyres always squeals
- Bumpy curva grande always squealing on braking limit
- Once tyre loses traction, locks & squeals after hitting bump on curva grand, it understeers if still trail braking. Must reapply brake & steering to regain traction
Track Times:
1.47 traffic
1.28 traffic
1.25
1.28 traffic
1.26
1.29 traffic
1.29 traffic
1.26
After:
Tyres: 595RSR 2.3/2.8bar F/R Hot
Tyre pressures is a continuous chain reaction.
Correct the pressure, they work better & harder whilst within designed spec, gets hotter, pressure builds till handling degrades, recheck pressure, rinse & repeat.
15:50 -------------------------------------------------------------------------------------
Moved brakes abit higher to what I like. Went out with lower fuel and no passenger, it felt good n confident. The worn seat was abit painful but was exciting keeping up with this fire spitting black mx5 with a honda engine.
Before:
Setup:
Dampers: 15/30 F/R
Tyres: 595RSR 2.0/2.7bar F/R
Weight: 50% fuel, driver only
Misc changes:
- brake pedal slightly higher
During:
Track Condition: dry & warm
Track feedback:
- Grooved disc rumble noise from totally worn inner LH pad
- Good brake pedal firmness point
- Slightly squishy brake pedal
Track Times:
black flag cos of bonnet
1.22
1.26 following mx5 honda
1.24 following mx5 honda
1.24 following mx5 honda
0-60 approx 11s
Laptimes: Eastern Circuit
14:30, 595RSR 2.0/2.7bar, passenger, 100% fuel =
1:33
1.28
1.27
1.28
1.26
15:30, 595RSR 2.0/2.6bar, passenger, 75% fuel =
1:25
1.26
1.26
15:50, 595RSR 2.0/2.7bar, driver, 50% fuel =
1:22
1.26
1.24
1.24
Getting consistantly faster as I learnt the layout and fuel got lighter. Reached peak best at 1:22 with no passenger but got held up behind the black honda engined mx5.
It’s been a successful few test days at blyton.
Driving back home with cold brakes, the grooved discs were now really really whirring loudly and brakes don’t bite as hard.
Later found at home that the inner LH pad has actually worn down to bare metal to metal! Woops
These grooved discs are a cheese pad grater, need to change over back to smooth oem discs