The Range Racer

Author
Discussion

M4CK 1

469 posts

127 months

Wednesday 16th January 2019
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I guess it's down to the op and what he wants. Does he want a gt3, GT3rs or full blown race car Rangie.
A Lightweight HVAC / blower unit could be installed https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2... {/URL}.

seiben

2,346 posts

134 months

Wednesday 16th January 2019
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I'm pretty sure the OP has more than enough advice in order to make an informed decision on whether to keep the AC...

@OP - any plans for the gearbox, out of interest? Some sort of flappy paddle setup perhaps? biggrin

Tyre Smoke

23,018 posts

261 months

Wednesday 16th January 2019
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Brilliant thread!

For what it's worth, my S/c Sport also had the Supercharger pump wired backwards and kept going into limp mode. Now fixed and no problems since.
I have also fitted driled and vented discs and currently am running EBC pads all round, but have used Pagid in the past, much improved over standard. I've also decatted the exhaust, and sleeved the boxes, had a remap to remove the Lambda readings and up the power and torque. The Supercharger pulley upgrade helps massively as does fitting a K+N filter to aid breathing. In general, removing anything that hinders the breathing of this engine has improved things massively.

With regard to wheels, I think the smallest fitted were 18" which should be fairly easy to track/slick tyres for. And definitely remove the HVAC unit, especially if you are going the whole perspex windows thing. It's either a full on track car or it isn't. With mine, I still have to haul the family around and tow things, so it's very much still a Rangey, albeit one with a lot more horsepower than it left Solihull with.

gj88

4 posts

63 months

Wednesday 16th January 2019
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18's absolutely won't go on this car, as I said, 19's minimum

House86

601 posts

153 months

Wednesday 16th January 2019
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great thread and good for giving it a go thumbup

charlie-5mkmt

Original Poster:

74 posts

72 months

Wednesday 16th January 2019
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Wow, thanks for all the comments, this thread has exploded since we were on the homepage over the weekend.

We have ordered some bucket seats!! only some cheap ones from ebay, we shall put them in the front soon, they will at become our rear seats once we find something more premium for the front.


Here is some of our thoughts:

As for the big HVAC debate of 2019, we are yet to decide, lots of good points either side, I think for now we shall just put it to the bottom of our “to remove” list and decide later. There is somewhere between 10 and 35kgs to be had depending on how much of the system is removed.

gj88 said:

With the suspension, would a better and simpler solution not be an IID tool? You could just have a race setting and a standard setting, drive to the track, lower the normal ride height to the desired level, swap it back afterwards?
We might look into this in future but our main focus here was cost, by linking the air sus relay to a switch we have almost all of the benefits for £1.99! We haven’t spoke much on here regarding budget but our intent is to keep this as low as possible! We are at aprox £4.5k overall so far inc our new seats.
British Beef said:
I would have thought this project lends itself more to a rally special, seeing one of these kicking up dirt on a welsh rally stage spitting flames would be a wonderful spectacle !!!!!
Maybe one day, we only need some different wheels and tyres and a suspension lift and we shall be ready!
SHutchinson said:
Do you rate the Ryobi Impact wrench? Thinking of adding one to the tool collection.
Im very happy with it, by no means am I a mechanic but it seems to have loads of torque and it was nice and cheap!
lukeharding said:
also thinking of attending the JEC day at Brands in Feb - would be great to see the Range Racer there too.
Sadly I think its unlikely we will make brans in feb but we are still planning on a track day in march at some point and we will make sure we bring it along to some piston heads events in the near future!
Tyre Smoke said:
I have also fitted driled and vented discs and currently am running EBC pads all round, but have used Pagid in the past, much improved over standard. I've also decatted the exhaust, and sleeved the boxes, had a remap to remove the Lambda readings and up the power and torque. The Supercharger pulley upgrade helps massively as does fitting a K+N filter to aid breathing. In general, removing anything that hinders the breathing of this engine has improved things massively.
Thanks for the advice here! Great to know there is some power to be had once we have finished adding lightness!

Tyre Smoke

23,018 posts

261 months

Wednesday 16th January 2019
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Definitely a LOT of power to be had for not a lot of money. I reckon my Sport is at about 500hp give or take, perhaps a bit more. But unlike you, I still have ALL the gubbins in it. Removing the weight will make a massive difference.

To the poster above who said 19" wheels are the smallest that will fit, are the hubs not the same as the Sport then? Because the poverty spec Sport came with 18s as standard. I'm happy to be educated here!

Jem0911

4,415 posts

201 months

Wednesday 16th January 2019
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Glad I found this.
Good luck OP looking forward to the results

MrBig

2,685 posts

129 months

Wednesday 16th January 2019
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Tyre Smoke said:
To the poster above who said 19" wheels are the smallest that will fit, are the hubs not the same as the Sport then? Because the poverty spec Sport came with 18s as standard. I'm happy to be educated here!
But this puppy has the big brembos which were only fitted to the S/C sports IIRC.

Loving this thread OP. Always a fan of doing something dumb, just because you can biggrin

Assuming one (or more) of you guys work in Vehicle Dynamics in Gaydon?

Tyre Smoke

23,018 posts

261 months

Wednesday 16th January 2019
quotequote all
MrBig said:
Tyre Smoke said:
To the poster above who said 19" wheels are the smallest that will fit, are the hubs not the same as the Sport then? Because the poverty spec Sport came with 18s as standard. I'm happy to be educated here!
But this puppy has the big brembos which were only fitted to the S/C sports IIRC.

Loving this thread OP. Always a fan of doing something dumb, just because you can biggrin

Assuming one (or more) of you guys work in Vehicle Dynamics in Gaydon?
Quite correct. My Sport came originally with 20" wheels, but had an 18" spare which fits over these calipers - only had to use it once for a couple of miles. But 18s do fit the caliper and hub. I know my Sport is a Disco in a pretty frock, but I thought the hubs were the same as the full fat big brother?

V8 FOU

2,973 posts

147 months

Wednesday 16th January 2019
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FWIW power isn't a priority. The Bentley is still stock.
Main thing is weight reduction and brakes, followed by suspension.

gj88

4 posts

63 months

Wednesday 16th January 2019
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The 18's were standard on the TD6 etc, but the SC version of the full size RR won't accommodate 18's. I have 20's on my L322, and 18s for winter, but they didn't go on my old SC, they don't go over the brakes

Tyre Smoke

23,018 posts

261 months

Wednesday 16th January 2019
quotequote all
gj88 said:
The 18's were standard on the TD6 etc, but the SC version of the full size RR won't accommodate 18's. I have 20's on my L322, and 18s for winter, but they didn't go on my old SC, they don't go over the brakes
I can assure you they do! I have used the 18" spare on my Sport in the past. It clears the caliper with space to spare (obviously). And yes, mine has the Brembo calipers. So, if 18s won't fit the FFRR, but will the Sport, what is the difference? Are the discs different diameters?

gj88

4 posts

63 months

Wednesday 16th January 2019
quotequote all
I'm not entirely sure! I know 100% that 18's won't go on the age of SC I had, but perhaps its a year thing. I'll have a poke around and see if I can find the answer. As you've said, I'm happy to be educated!

MrBig

2,685 posts

129 months

Wednesday 16th January 2019
quotequote all
gj88 said:
I'm not entirely sure! I know 100% that 18's won't go on the age of SC I had, but perhaps its a year thing. I'll have a poke around and see if I can find the answer. As you've said, I'm happy to be educated!
Discs are the same O/D at 380mm but are different between L322 and L320 so could be a wheel offset difference, maybe wider calipers?

Tyre Smoke

23,018 posts

261 months

Wednesday 16th January 2019
quotequote all
Could well be. But I can't imagine JLR using different calipers between L322 and L320.

Anyway, I should imagine losing front and rear bumpers, or making some sort of alternatives along with the bonnet would save loads of weight. Venting the bonnet might be a good move, but I've never found cooling a problem.

OP, with regards to the HVAC and weight saving, there are also three or four radiators right behind the grille. Removing the HVAC would do away with at least one of these (aircon) which will increase airflow to engine allowing cooler running. Routing the air intake to one of the redundant for light apertures will aid cold air intake too.

amstrange1

600 posts

176 months

Wednesday 16th January 2019
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I'm fairly sure the guys are right about the smaller wheels not fitting.

I can recall much debate in the JLR Revi test facility one CET season about whether to downgrade the brakes to fit the smaller wheels with winter rubber to do an airport run in a S/C L322, or whether to risk it on summer rubber. Not sure what they did in the end, but the car ended up wedged in-between some trees on the road between Arjeplog and Arvidsjaur...

Krikkit

26,520 posts

181 months

Wednesday 16th January 2019
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Maybe the 18" wheels that fit for the poster above (being a spare) were a particularly odd size/shape to allow them to squeeze over the calipers, but not suitable as a permanent full-size?

It'd be interesting if you could find some that fit mind, even if they were 3rd party rather than OEM. I suspect rather budget-busting for now of course, but I think a set of Speedline 2120's would look bloody awesome on a FFRR.

ChocolateFrog

25,216 posts

173 months

Wednesday 16th January 2019
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That looks like a lot of fun. There's so much weight to come out of this, genuinely interested to see what it's like when you're finished.

For me, assuming it is going to become a dedicated track car, the HVAC would have to go. Nothing wrong with getting a bit hot and sweaty on track, it's not like you're going to be doing 2 hr stints in it either. Removing the glass would recoup some cost, you can just cut your own perspex and bond it in.

jas xjr

11,309 posts

239 months

Wednesday 16th January 2019
quotequote all
Might be worth finding a weighbridge for a before and after.
Looking forward to this build