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Slight Improvement in Drag Times
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04-06-2016, 05:32 PM | #1 |
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Slight Improvement in Drag Times
Although the temperature was not ideal for running turbo vehicles, I went to the Willowbank Test N Tune last night and gave my car a couple of runs. The temperature was 23 degrees C. The second run was the best with 11.693s @ 125.10mph. The 0-60' time was shocking but I should be able to reduce this by at least 0.2s. The speed indicates a low 11s run is possible. I will wait until the temperature drops 8 or 10 degrees and give it another run. The poor 0-60' time resulted from a combination of the brakes not holding on the start line while the revs were being increased and over revving in low gear. The time sheet is attached below.
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04-06-2016, 05:57 PM | #2 |
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Great time coupes, solid effort.
Agree your trap speed is good but you 60ft could prob improve by a 10th or so to 1.7-1.8 and you'll get your car under 11.5 sec. I guess with any rear drive car you will eventually need semi slicks or better drag radials on some 17s to improve your 60ft (Are you running street tyres?) Your trap speed indicates car is prob running 360-370rwkw. Good luck when weather cools down a bit |
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04-06-2016, 09:53 PM | #7 |
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04-06-2016, 10:59 PM | #8 | |
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04-06-2016, 11:07 PM | #9 |
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Yes Shane, I installed it by myself on jack stands. Replacing the turbos was an easy job compared to this but I got it done successfully. From the data logs, it appears the I was reaching around 2,700rpm on launch. The problem was I wasn't allowing the boost to get high enough. I need to install a boost gauge or use the Cobb to watch my boost on the line. I will get this all sorted before I run again. There was no problems with the transmission during the runs.
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04-06-2016, 11:22 PM | #10 |
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Since the last time I run the car last Sept, I have installed the RVO transmission, Fuel-it TBI, E60 PTF tune, 50mm VTT inlets and replaced secondary catalytic converters with 200cpsi units. These changes to date have given me a 0.05s and 4mph improvement. However, I have had a 0-60' time of 1.825s which through straight mathematics would have reduced the 11.693s time by 0.13s to 11.563s. I am sure a sub 11.5s run is possible.
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04-06-2016, 11:23 PM | #11 |
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04-07-2016, 05:31 AM | #13 |
11 second stock turbo club. 11.6@120mph
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Great work Coupes you'll get there. A 1.9 60ft isnt to bad considering larger than stock turbo's. Mph is looking great. Ill be running my car in a couple of weeks once my tune is soughted out, hopefully it starts cooling down a bit by then too.
P.s: what were you racing against on that run? Did he back off a little before the line?
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JB4 ISO - 3" Catless Downpipes - RB Inlets to be fitted - BMS DCI - VRSF 7" intercooler - Charge pipe & Raceport BOV - BMW PE exhaust - Stage 2 fuel pump - BMS E85 Flash/ E50 mix, running map7 - NGK Plugs - BMS Catchcan - RB pcv valve - Quaife LSD - 19'' Beyern wheels - Msport suspension - M3 rep sideskirts - Aero front lip - Lux V5's - Mid kick rear spoiler - Dark tint - Msport steering wheel with M3 paddles & trim
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04-07-2016, 05:53 PM | #14 |
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Due to the high line pressure it bangs hard when I put it into drive. There is no problem going up through the gears but thumps hard going from 5th to 4th on the down shift. All other gears on the down shifts are good. I can live with it at the moment but may have to improve these two issues in the future.
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04-07-2016, 06:03 PM | #15 | |
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04-09-2016, 08:19 PM | #16 |
11 second stock turbo club. 11.6@120mph
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Yes this weather is just bizzar, were almost mid April and it still feels like the middle of summer. Yes ive got my Hexon RR600's on, im in the middle of getting the tunes soughted out, ive been a bit slack and havnt had time to go out and do some logging, maybe tonight lol. Im also getting a 2nd Kill map done, high octane, will see how that goes!
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JB4 ISO - 3" Catless Downpipes - RB Inlets to be fitted - BMS DCI - VRSF 7" intercooler - Charge pipe & Raceport BOV - BMW PE exhaust - Stage 2 fuel pump - BMS E85 Flash/ E50 mix, running map7 - NGK Plugs - BMS Catchcan - RB pcv valve - Quaife LSD - 19'' Beyern wheels - Msport suspension - M3 rep sideskirts - Aero front lip - Lux V5's - Mid kick rear spoiler - Dark tint - Msport steering wheel with M3 paddles & trim
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04-09-2016, 10:38 PM | #17 | |
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04-10-2016, 06:34 AM | #18 |
11 second stock turbo club. 11.6@120mph
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A 10.99 is the goal lol..Trebila is doing the tunes.
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JB4 ISO - 3" Catless Downpipes - RB Inlets to be fitted - BMS DCI - VRSF 7" intercooler - Charge pipe & Raceport BOV - BMW PE exhaust - Stage 2 fuel pump - BMS E85 Flash/ E50 mix, running map7 - NGK Plugs - BMS Catchcan - RB pcv valve - Quaife LSD - 19'' Beyern wheels - Msport suspension - M3 rep sideskirts - Aero front lip - Lux V5's - Mid kick rear spoiler - Dark tint - Msport steering wheel with M3 paddles & trim
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04-10-2016, 10:26 PM | #20 |
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It would be great to see a 10s pass from your car. Torque is the main ingredient for getting good times and getting it at the correct revs for launching with the tune is imperative. I cannot wait to get my car on the dyno to see where the torque curve sits with the PTF tune.
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04-11-2016, 01:48 AM | #21 | |
11 second stock turbo club. 11.6@120mph
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When will you be dynoing your ride mate??
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JB4 ISO - 3" Catless Downpipes - RB Inlets to be fitted - BMS DCI - VRSF 7" intercooler - Charge pipe & Raceport BOV - BMW PE exhaust - Stage 2 fuel pump - BMS E85 Flash/ E50 mix, running map7 - NGK Plugs - BMS Catchcan - RB pcv valve - Quaife LSD - 19'' Beyern wheels - Msport suspension - M3 rep sideskirts - Aero front lip - Lux V5's - Mid kick rear spoiler - Dark tint - Msport steering wheel with M3 paddles & trim
Last edited by bmwheath; 04-11-2016 at 01:54 AM.. |
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04-11-2016, 03:42 AM | #22 |
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