Drew442 67 Posted November 25, 2016 Is there a coilover available for the XE-AU coil rear end?I can't seem to find anything. I'm thinking i'll have to send some heights and measurements to some manufacturers but surely I'm not the first on chasing this? I'd like bump, rebound and height adjustment if it can be done. I don't know what spring rate is in the ballpark either. Can anyone fill me in? Share this post Link to post Share on other sites
BGDAV 1,873 Posted November 25, 2016 give these guys a call - they have the front for XE - i haven't called yet about the rears but im assuming they would have something http://www.mcdonaldbrosracing.com.au/ coil over viking shocks - the fronts cost me around 1k - worth every penny 1 slydog reacted to this Share this post Link to post Share on other sites
Crazy2287 1,886 Posted November 25, 2016 +1 on the vikings, Rob has them in the front of his ute. Baller setup.Let us know how you go WRT the rears, I'll be looking for something for the back of the XF sedan in.. well prolly a year its a long way down the list. Share this post Link to post Share on other sites
slydog 7,873 Posted November 25, 2016 Front and rear double adjustables Q...some crew chief you are. And again the Viking units are top notch but be looking @ $ 1600-$1800 front and rear.Viking is the same base company that started QA1 BTW. 1 Thom reacted to this Share this post Link to post Share on other sites
sleepisforthedead 29 Posted November 25, 2016 Did you get the Warrior valve upgrade with yours Rob? Share this post Link to post Share on other sites
slydog 7,873 Posted November 25, 2016 No I didn't bro...please explain Share this post Link to post Share on other sites
ando76 4,354 Posted November 25, 2016 You just need to change your top mount to eye (instead of pin). Not sure if Ryan posted in his thread, but it's a piece of piss to do. Once you have that done you just need compressed and fully extended length. Which you can do with your stock stuff. Carefull measurements at ride height with springs installed and distance to bump stops. Then full travel. Once you have that you can pick a shock/Spring package from macdonalds bros. if you have access to corner scales and can give them corner weights they can provide you with a really accurate spring recommendation that will be bloody close. I would suggest that somewhere near 300lb RR and 275LR would be well in the ballpark for an xe/xf sedan. Afco do some really nice shocks at a reasonable price. They have varied valving rates, or you can buy adjustables, like the Viking shocks. Double adjustable shocks are expensive but worth the money if you are starting with no real firm idea on valving. Ryan's car, which apparently handles really well, has 4 valving on the LR and 5 on th RR. that's a pretty common performance xf set up. 1 Thom reacted to this Share this post Link to post Share on other sites
slydog 7,873 Posted November 26, 2016 I have 175's rear and 350's front in mine and TBH prob needs 150's in the rear but on the hwy I just wind in compression and rebound and the car handles awesome. Well we sat it on the limiter in top gear and it never felt bad or unstable just squatted down and did it's thing. 2 Thom and Crazy2287 reacted to this Share this post Link to post Share on other sites
wagoon 2,429 Posted November 26, 2016 As Ando said I have Afco coilovers in the rear of my car and it does handle outstanding. The rear just grips and with 235/60/14 road tyres the car is very grippy and very smooth. The ride is firm but not harsh at all. Can get better shots if you require These are the top mounts I made, bolts straight into the factory location and was the only "mod" I had to do to the car to make the coilovers fit other than a little trimming to the diff which was pre-done for me 1 BGDAV reacted to this Share this post Link to post Share on other sites
sleepisforthedead 29 Posted November 29, 2016 I spoke to the guys from Viking while I was at SEMA and they recommended the Warrior valve upgrade, something about infinitely adjustable and easily rebuildable if I remember correctly Share this post Link to post Share on other sites
BGDAV 1,873 Posted November 29, 2016 think im gonna have to go rear coil overs .. sigh more money! mines way to lose in the back end with the king v8 rears and koni shocks on firm Share this post Link to post Share on other sites
BGDAV 1,873 Posted November 30, 2016 spoke to mcdonalds racing about the coil over in the rear issue - reckons he should have somthing that will work - would require converting to eye and running a bar with 2 bolts across the top thou - easy done really - going to go down in a few weeks to see what hes got that will work 2 Crazy2287 and SirkWhyXF reacted to this Share this post Link to post Share on other sites
Crazy2287 1,886 Posted November 30, 2016 Pics and info as it comes BGDAV! Sharing is caring. 1 SirkWhyXF reacted to this Share this post Link to post Share on other sites
BGDAV 1,873 Posted November 30, 2016 will do im prob gonna do it next few weeks - who needs food newayz Share this post Link to post Share on other sites
judgetread 758 Posted November 30, 2016 spoke to mcdonalds racing about the coil over in the rear issue - reckons he should have somthing that will work - would require converting to eye and running a bar with 2 bolts across the top thou - easy done really - going to go down in a few weeks to see what hes got that will work check out mine were done, loads easier and not mods to diff or top mounts needed The bottom eyelets bolt straight upto the original shocker mount location with spacers each side to centre em. The top have a bracket around the eylet and a bolt going upwards. 3 Crazy2287, X-Taxi and SirkWhyXF reacted to this Share this post Link to post Share on other sites
SirkWhyXF 1,533 Posted November 30, 2016 check out mine were done, loads easier and not mods to diff or top mounts needed The bottom eyelets bolt straight upto the original shocker mount location with spacers each side to centre em. The top have a bracket around the eylet and a bolt going upwards. Awsome! Where and how much? Gonna have to get me some! Share this post Link to post Share on other sites
judgetread 758 Posted December 1, 2016 they are just QA1's. They have the eyelets on each end. 1 SirkWhyXF reacted to this Share this post Link to post Share on other sites
wagoon 2,429 Posted December 1, 2016 check out mine were done, loads easier and not mods to diff or top mounts needed The bottom eyelets bolt straight upto the original shocker mount location with spacers each side to centre em. The top have a bracket around the eylet and a bolt going upwards. Thats a lot more load on the factory shock mounting position, do they supply new mounting brackets/pressings with the coilovers?Also do the lower mounts clear the spring perches no worries? Share this post Link to post Share on other sites
ando76 4,354 Posted December 1, 2016 Mounting them with the main body down low is probably fine for a street car. I inverted them so that the weight was carried by the body of the car and not swinging on the diff. Each to their own tho. You might be able to swap the ends around to do that on that Qa1 set up, provided there is adequate clearance up in the factory shock mount hole. Share this post Link to post Share on other sites
judgetread 758 Posted December 2, 2016 Thats a lot more load on the factory shock mounting position, do they supply new mounting brackets/pressings with the coilovers? Also do the lower mounts clear the spring perches no worries? They they clear the spring perch fine. The top shocker towers have had a 6 mm plate welded across the top to stiffen it up. These came off a burnout car (coilovers and towers) so they've had a hard life 1 ando76 reacted to this Share this post Link to post Share on other sites
wagoon 2,429 Posted December 2, 2016 Yeah I was thinking that the mounts would need to be strengthened in someway as the standard shock mounts are not made to take the entire load of the rear of the car like you would see with coil overs Share this post Link to post Share on other sites
ando76 4,354 Posted December 2, 2016 They they clear the spring perch fine. The top shocker towers have had a 6 mm plate welded across the top to stiffen it up. These came off a burnout car (coilovers and towers) so they've had a hard life That's a very good friend of mine's car. Jason Earl. Yes they have been stress tested. Jason ran a pretty respectable time in old 383AXE before he went skidding in it. Tuff that car. 1 judgetread reacted to this Share this post Link to post Share on other sites