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Tracking / Autocross / HPDE / Drifting What these cars were built for! |
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05-24-2017, 07:25 AM | #1 |
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Post roll cage lap time differences
Has anyone noticed much of an increase in lap times after installing a cage?
Im almost committed on installing one. Kind of hoping it's not a big difference. Thanks, |
05-24-2017, 09:40 AM | #2 | |
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I think what you should be asking yourself is do you need a roll cage? Safety is not something to question because of performance. Sent from my HTC6535LVW using Tapatalk |
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The Following User Says Thank You to MurderousPandas For This Useful Post: | wparsons (05-24-2017) |
05-24-2017, 10:09 AM | #3 |
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Not my personal experience, but one of the people that regularly track his 86 along with me and others. He installed a roll bar (or half cage, only the rear portion) and bucket seat with harness. He dropped around 1sec in a 1min lap with that alone. In his words "I feel more connected to the car, I can feel much more with my bum, and I dont need to hold onto the wheel or support myself with the knees so its a lot easier to do it". I cant say anything myself, only what I have heard, he is the only one racing a before and after cage (others went cage right away, because of wheel to wheel regulations).
Edit: weight wise, the stripping of the interior plus the ligther seat still helped, but he still ended up a touch heavier than before. |
05-24-2017, 12:52 PM | #4 | |
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There are many things you need to consider with a cage. Its not advisable to drive it everyday, most folks only trailer their car since the cage is so close to the head. Secondly, when you cage, you strip the interior out so net net weight is more or less the same. While I have not experienced any performance gains (lap time wise with data) in my previous race cars before and after, I can attest that I am a LOT more comfortable, less tired and therefore perhaps faster being pinned in a race seat with harness and with some peace that my Hans device is also intact. Is the chassis stiffer, absolutely. But I did it for safety since I was in wheel to wheel (as its also a requirement). For my FRS, I am having it half caged (roll bar) with seats and harness vs a full cage since I will be driving it to and from the track vs having a truck/trailer/race car. Hope this helps. Lutfy
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The Following User Says Thank You to lutfy For This Useful Post: | Icecreamtruk (05-24-2017) |
05-24-2017, 01:23 PM | #5 |
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I've noticed i've gotten quicker post roll bar w/ harness and fixed back seat. You are much more relaxed and not bracing yourself so you can feel how the car is reacting faster giving you more control.
I've left the rear interior seats and panels in, but did offset with lightweight battery a bit so not sure my car gained that much weight. |
05-25-2017, 07:45 AM | #6 | ||
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I've used two of my nine lives at the track over the years and don't want to get hurt by another stupid mistake. I have started using a race seat just on track days and have noticed a huge difference in comfort and confidence with that alone. Thanks for all your input! |
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05-25-2017, 12:49 PM | #7 |
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Typical rollbar is probably in the 60 ish lbs range plus another 15-20 lbs per harness w/ mounting hardware. So just under 100lbs. Depending on what you take out will determine your net weight gain (or loss).
From there one could probably interpolate based on the time increase from having a passenger.
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05-25-2017, 01:06 PM | #8 |
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Depends on driving skill level. Anyone driving less than 10/10ths competively is not likely to notice a change in lap times (other than possibly going faster due to the seats and harness and added sense of security).
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