- Joined
- Feb 18, 2018
- Messages
- 670
Hey and not yet! Have not got around to that yet.
Yh heard really good things about the AO52, like you say a set of them is insane!
Copyninja Street FD - GT3 Build
- Thread starter Copyninja
- Start date
Yh heard really good things about the AO52, like you say a set of them is insane!
- Joined
- Feb 18, 2018
- Messages
- 670
Things are getting warmer and brighter so I went out hoping the Cup 2s would switch on and hook up before trying a different tyre.
As suspected, they are hooking up in the 19-25*C ambient temps and finally doing what they were made to do. Phew! I really didnt want to swap tyres unless these were useless warm conditions.
The below run was with the Turblown UIM (all else being the same) on a really safe and conservative tune up and I ran back to back PB's right off the bat. 5.54 and a 5.50. Previous PB being a 5.58. So we are headed in the right direction. I appreciate its not a massive jump in performance but a small increase nonetheless with a granny shift that would previously put in the 5.7s range, so there is some progress and I no longer need a perfect shift to maintain mid 5s. However, it would help if I pulled my finger out and managed a perfect shift to help get me into low 5s.
Enjoy the PB Run Below
Average boost around 28pi. Boost keeping tapering off top end to 26-27psi...Might have to increase WG duty cycle and see if boost goes back up. Currently around 75%.
13B Streetport G35 1050 28psi Stock Box with a granny shift.
G42 1200C 13B Bridgeport 32psi Dog Box, good clutchless shift.
Holset 19psi 70/80 13b Semi PP no shift 3rd gear held to 10krpm relentless acceleration
3 FDs with 3 completely different setups. All running pump fuel (99 Ron) as the base fuel with WMI.
I think this will come as no surprise the Streeport loses the battle of power and acceleration over the 100-200.
However, something very interesting caught my eye...the 100-150 battle is insanely close between the 3 cars, infact way closer than I thought possible. However, the streetport loses big after the Manual shift from 3rd to 4th.
The biggest eye-opener wasn't turbo size or peak horsepower (they matter ofcourse) it was gear changes. The Semi PP loses no time because it stays in one gear. The G42 dog-box shift costs roughly 0.2s, while my stock gearbox appears to cost around 0.4-0.6s. Looking purely at acceleration rate. While the car behaves much closer to a 5.0-5.1s car looking at the 100-150 times the reality remains the manual shift has to be completed which means the real world performance remains at the 5.50s level.
The current 5.50s PB was achieved with conservative timing, rich lambda at high rpm with boost tapering to 26psi, no flat-shift, no ethanol, and a fresh manifold setup that's still being dialled in. The Turblown UIM has already shown measurable gains, and the data suggests there is still more available from boost, timing, lambda optimisation, flat-shift and eventually E35 as the base fuel.
For a stock-box street-ported FD the latest results suggest there's still a little bit left in the setup. I'll keep testing as the data suggests there more work to be done before moving onto the G40 or another bigger turbo which will help the streetport take full advantage of the Turblown UIM.
As suspected, they are hooking up in the 19-25*C ambient temps and finally doing what they were made to do. Phew! I really didnt want to swap tyres unless these were useless warm conditions.
The below run was with the Turblown UIM (all else being the same) on a really safe and conservative tune up and I ran back to back PB's right off the bat. 5.54 and a 5.50. Previous PB being a 5.58. So we are headed in the right direction. I appreciate its not a massive jump in performance but a small increase nonetheless with a granny shift that would previously put in the 5.7s range, so there is some progress and I no longer need a perfect shift to maintain mid 5s. However, it would help if I pulled my finger out and managed a perfect shift to help get me into low 5s.
Enjoy the PB Run Below
Average boost around 28pi. Boost keeping tapering off top end to 26-27psi...Might have to increase WG duty cycle and see if boost goes back up. Currently around 75%.
13B Streetport G35 1050 28psi Stock Box with a granny shift.
G42 1200C 13B Bridgeport 32psi Dog Box, good clutchless shift.
Holset 19psi 70/80 13b Semi PP no shift 3rd gear held to 10krpm relentless acceleration
3 FDs with 3 completely different setups. All running pump fuel (99 Ron) as the base fuel with WMI.
I think this will come as no surprise the Streeport loses the battle of power and acceleration over the 100-200.
However, something very interesting caught my eye...the 100-150 battle is insanely close between the 3 cars, infact way closer than I thought possible. However, the streetport loses big after the Manual shift from 3rd to 4th.
The biggest eye-opener wasn't turbo size or peak horsepower (they matter ofcourse) it was gear changes. The Semi PP loses no time because it stays in one gear. The G42 dog-box shift costs roughly 0.2s, while my stock gearbox appears to cost around 0.4-0.6s. Looking purely at acceleration rate. While the car behaves much closer to a 5.0-5.1s car looking at the 100-150 times the reality remains the manual shift has to be completed which means the real world performance remains at the 5.50s level.
The current 5.50s PB was achieved with conservative timing, rich lambda at high rpm with boost tapering to 26psi, no flat-shift, no ethanol, and a fresh manifold setup that's still being dialled in. The Turblown UIM has already shown measurable gains, and the data suggests there is still more available from boost, timing, lambda optimisation, flat-shift and eventually E35 as the base fuel.
For a stock-box street-ported FD the latest results suggest there's still a little bit left in the setup. I'll keep testing as the data suggests there more work to be done before moving onto the G40 or another bigger turbo which will help the streetport take full advantage of the Turblown UIM.
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