XF-RS have you done a dyno run
Hey peeps
Have not been on here for a long time Been enjoying my purchase a little too much Has anybody put their XF-RS on a dyno and if so what readings did you get I've done mine recently and not sure but feel a little deflated by it. Not the figures that I was expecting. Would love to hear other stats X |
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Originally Posted by Superchared5.0
(Post 1987887)
Hey peeps
Have not been on here for a long time Been enjoying my purchase a little too much Has anybody put their XF-RS on a dyno and if so what readings did you get I've done mine recently and not sure but feel a little deflated by it. Not the figures that I was expecting. Would love to hear other stats X What gear did you run in? What type of dyno? Is the car 100% stock? My XFR-S made:
Eventually started running in 5th gear, and the results were:
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Ahmad, why did you change to 5th gear from 4th? Wouldn't that change all the dyno's calculations for hp/torque? Or at least invalidate any comparison from base to latest mods? Are you just under 1:1 in one gear and just over in the other? Or did you have wheel spin on the roller?
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https://cimg5.ibsrv.net/gimg/www.jag...a125bcf95.jpeg Results attached Run in 4th Standard car still under warranty. |
Originally Posted by 2010 Kyanite XFR
(Post 1988442)
Ahmad, why did you change to 5th gear from 4th? Wouldn't that change all the dyno's calculations for hp/torque? Or at least invalidate any comparison from base to latest mods? Are you just under 1:1 in one gear and just over in the other? Or did you have wheel spin on the roller?
Originally Posted by Superchared5.0
(Post 1988469)
https://cimg5.ibsrv.net/gimg/www.jag...a125bcf95.jpeg Results attached Run in 4th Standard car still under warranty. |
Are you sure about 4th or 5th gear?
I thought you want to dyno the car in a 1:1 ratio if possible? The 8 Speed ZF has 6th as the 1:1 gear ratio. Here are the two different sets of gears available for the ZF. https://cimg5.ibsrv.net/gimg/www.jag...1798b9ac2a.jpg I was hoping to dyno my car (2014 XJR) in the future and was going to paddle shift it into 6th for the dyno run? Is this correct? . . . |
Originally Posted by clubairth1
(Post 1988651)
Are you sure about 4th or 5th gear?
I thought you want to dyno the car in a 1:1 ratio if possible? The 8 Speed ZF has 6th as the 1:1 gear ratio. Here are the two different sets of gears available for the ZF. https://cimg5.ibsrv.net/gimg/www.jag...1798b9ac2a.jpg I was hoping to dyno my car (2014 XJR) in the future and was going to paddle shift it into 6th for the dyno run? Is this correct? . . . Its no surprise that I in Canada, that the dyno operator/ owner ran my car in 4th, and the fellow that started this thread who is from the UK had his car run in 4th. Most dyno operators will try to target a 1:1 ratio but they also dont want to do a pull that will last very long. In 5th gear from when he roles into throttle till he lets off before 6500rpm there is a good 12-13 seconds, I dont know if you would want to run in 6th gear as your run will be even longer, and much higher speed. I remember a tuner once telling me you dont want to be full throttle (on high HP cars) for more than 10 seconds on a dyno (especially if you are doing repeated runs), you'll never get the same air flow as you would on the open road. You can run it however you want... just my thoughts |
Are you happy with your eurotoys experience? I plan on doing the lower pulley kit and tune for my 2010 xfr with the mina intake already and a x pipe
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