12.28 @ 117 mph 1/4 mile
#41
#42
It was my first go on the drag strip so I was struggling to get the car moving off the mark. Could the extra weight of petrol and my fat *** lead to the car being 0.2/3 seconds slower?
My technique was foot on brake with about 2000rpm.
Tyres are good, Potenzas with about 4mm left, temp was around 15c.
My technique was foot on brake with about 2000rpm.
Tyres are good, Potenzas with about 4mm left, temp was around 15c.
#44
Better reaction time has nothing to do with better ET. Main point is good 60ft time. If you drive with almost empty tank you may lose traction more than you get benefit from lower weight. If you move yourself ( 127kg ) to the trunk - that's the best way for good times
#45
Last edited by Cambo; 09-14-2013 at 09:44 PM. Reason: Quote removed
#46
Hell...i bought 255/35/18 wheels that weighed 21/22lbs vs the 29/30lbs it usually has with 255/40/18... what a difference on acceleration that was, felt like a go kart lol.
I'd REALLY like a carbon fiber or aluminum driveshaft with lighter wheels/tires to see what kind of difference that would make.
Last edited by princemarko; 07-17-2013 at 06:12 PM.
#49
Yeah, close enough: 11.924 @ 118.82 mph.
Car 42
Track: Empire Dragway/NYIRP
Elevation: 910'
Temperature: 64 F
Humidity: 40%
Baro: 30.11
Density altitude 1340
Changes from previous runs:
OS Giken lsd
265/40/18 Michelin PS2 on 18x9 BBS Milans (wider but heavier) vs old bald Pirelli PZeros 255/40/18 on 18x8 Pentas.
Maxbored throttle body.
Oh and nearly forgot, AMG blue top valve solenoids.
I'll try to get some videos up if they're any good on Monday.
Car 42
Track: Empire Dragway/NYIRP
Elevation: 910'
Temperature: 64 F
Humidity: 40%
Baro: 30.11
Density altitude 1340
Changes from previous runs:
OS Giken lsd
265/40/18 Michelin PS2 on 18x9 BBS Milans (wider but heavier) vs old bald Pirelli PZeros 255/40/18 on 18x8 Pentas.
Maxbored throttle body.
Oh and nearly forgot, AMG blue top valve solenoids.
I'll try to get some videos up if they're any good on Monday.
Last edited by SteveM; 09-16-2013 at 01:18 PM.
The following 3 users liked this post by SteveM:
#50
#51
Yup, top of our 1/4 mile list and fastest XJR that I've seen. Feels good to beat the new 5.0 XFR's and XKR's with a lowly 1999 4.0
According to Dragtimes, there are only two Jaguars with Jag engines that are faster and one of them is the XJ220 supercar.
You twin screwed XKR's need to step up to the plate
According to Dragtimes, there are only two Jaguars with Jag engines that are faster and one of them is the XJ220 supercar.
You twin screwed XKR's need to step up to the plate
#52
Not lowly as the X308s still look WAY better
I see Matt Moran ran a 1.775 60 foot time to your 1.89, so there is still room for improvement, maybe you can get to 11.8x
At any rate, you have a proven 11 second comfortable beautiful Jaguar.
Well done,...well done.
I see Matt Moran ran a 1.775 60 foot time to your 1.89, so there is still room for improvement, maybe you can get to 11.8x
At any rate, you have a proven 11 second comfortable beautiful Jaguar.
Well done,...well done.
Last edited by WaterDragon; 09-14-2013 at 09:03 PM.
#54
#55
Congrats! Great result.
Waterdragon: Moran used ProTorque high stall speed TC. This is a big advantage if good tires and fast track. He had this differential:
Jaguar XJS XJRS Kit Car 2.87 Power Lock Limited Slip Differential | eBay
Waterdragon: Moran used ProTorque high stall speed TC. This is a big advantage if good tires and fast track. He had this differential:
Jaguar XJS XJRS Kit Car 2.87 Power Lock Limited Slip Differential | eBay
#57
I thought Mat said he got only .1 second from the LSD, but it took care of his wheel spin issue.
For my purposes, I would not consider a stall converter, since I like how my XJR is so comfortable and docile like my XJ8 until I stick my foot in it.
For my purposes, I would not consider a stall converter, since I like how my XJR is so comfortable and docile like my XJ8 until I stick my foot in it.
Last edited by WaterDragon; 09-15-2013 at 09:52 AM.