Roy

The G Family of calipers do come in a range of applications and I can promise you that Brembo sell a Range Rover kit. They are not factory but if you check the Brembo GT catalogue you will see that Brembo list a Range Rover kit and other giants like F150s and whatever those Cadillac SUVs that all the bling brigade drive (Escalades?) Who knows what year models it was for. I almost bought a Range Rover kit a while back but the piston info they provided me turned me off. But they were dirt cheap I am in country NSW with work so dont have access to my drive of catalogues and caliper part numbers. I could be wrong but if you look here ... http://www.racetechnologies.com/images/Retail_GT_Application_List_2011_(06.29.11).pdf There are a number of different G family kits. Apologies if I am wrong but the following G kits are different by part number and in turn piston sizes. Range Rover_____1G2.9006A LS430__________1G2.9019A AMG CL55______1G2.9023A ML550__________1G2.9029A Cayenne________1G2.9016A You may be right about the RS4/RS5/Gallardo having the same kit number. I have a quick look on the net to see catalogues but cant find the US site that has the comprehensive logs but I think you will find the 06A, 19A, 23A, 29A, 16A etc are all the exact same kit other than the piston sizes and leading/trailing applications. If you look at what part number is cast into your calipers you will be able to see what car Brembo offer that kit for and trace it through to piston sizes

Ben, you are not doing 70km/h more than them, the cars are less side by side and there is more space. I agree its a similar scenario but not the same situation. I personally would not have gone for the gap. Granted the Lotus onboard shows there is more space then the other video suggested but it is still damn tight given their closing speed. Anyway...enough to scare me off the track and think another 30 times about doing my OLT and working up to an Intl licence for some paid Enduro drives in FWD pussboxes

They are the same or look the same? For instance people generically call F50 calipers the ones with the 44/40mm pistons. But F50s have a range of part numbers and externally look identical to one another...but have many difference piston combinations. I have see F50s with 46/44mm pistons...and I think the 4 pot Brembo off FPV Fords are similar...at around 48/44mm so if you put them on a Nissan they would be horrible. So your family of 8 pots may be the same as the Lambo etc but they could be a different part number, and given what you are saying about the piston sizes it could be a horrible mismatch. Somebody, not sure if it was you posted a while ago they had 6 pot or 8 pots off a Range Rover or something which makes me think they are a risk to buy unless you know the piston sizes or are going for a full custom brake install with big gears, boosters and changed pedal ratios

If thats true Luke you are in for a world of hurt. Are they off a Range Rover, Hummer etc ? They often come with nice and tasty big brakes but cant really be retrofitted to cars

Sorted... and how about some pics of this abomination you now own Zebra. You have to be the most bipoloar person in the forum wth regards to plans, cars you buy etc

Does it still comply with Targa regs?

Agree that downforce needs speed to help. If you look at open wheelers and their brake pedal pressure trace on data you will see that when they first jump on the brakes they are trying to put their foot through the floor, as the speed washes off the tyre grip afforded to them drops off as the downforce drops off with speed so they drop the pedal pressure otherwise they will lock brakes. Saloon cars are the same but to a lesser extent as they only have downforce (normal load N) measured in the tens of kilograms rather than hundreds of kgs. (to go from weight to force you multiply by gravity - 9.81; so 10kgs is 98.1 Newtons) Re ABS, I am not convinced if its a good thing or a bad thing. Personally I cant stop cars for shit and am always locking brakes and ruining tyres. I suspect late model cars with faster processors etc in their ABS would stop quicker using it....not sure where a GTR sits in stopping distances. But yeh, the mechanics/dynamics of cars braking is pretty interesting. This is the theory behind what I am trying to say... And this is why braking will always be shorter if you dont lock brakes Essentially when a tyre is rolling there is no slip between the tyre surface and ground so is referred to as static friction. When a tyre locks then you have slip between the two surfaces so you have kinetic friction. As kinetic friction is lower then static friction then you will always have less grip with a tyre locked.

LOL...how old are you Neil? I am 35...so how long until I look at things with the same cheery/rosey perspective as you

I could very well be wrong..but think about it...no way the Cyber Evo weighs 800kgs. NO WAY! But your point is correct..you can get away with cars that have good OE brakes for a lot longer when you are ripping weight out of them. I will just repeat, I will masturbate with a cheese grater in public on film if the Cyber Evo weights 800kgs If it weighs > +/-35kgs of 1000kgs they have done an amazing job Best not to listen to a word I say...BUT...there is plenty of reasons why without significant improvements in downforce you wont achieve shorther stopping distances on a std pressed steel mass manufactured car by going for bigger rotors (increase in braking force) and bigger calipers with more piston area (increase in braking force) and racey pads (increase in braking force) I suspect you could know more then me about this stuff and its a baited question...so will try to explain my view. In saloons like most of us punt, they weigh a lot, have good hp and have limited grip. Under brakes its all about tyres and how grippy they are and suspension: how good it is at controlling the pitch of the car under brakes and ride the bumps when the shocks are under compression. You get braking force/torque from pad compounds, rotor diameter and piston area. All this works to help slow a car to the point that the tyres dont lock up. Tyre grip is again just friction so given a certain tyre grip, the only thing that is ever going to increase friction (ie grip under braking) is an increase in the normal load. You increase the normal load on a car/tyre with downforce. So the only way to increase the normal load on a tyre is to increase downforce which gives the tyre more grip. If the tyre has more grip than you can use additional braking force. I agree that track cars need brake upgrades, but since Skylines have pretty good gear std, its mostly about thermal management and trying to avoid brake fade. NOT increasing braking capacity as it will just result in bitey brakes that lock up too easily. You often increase thermal efficiency with better pads, fluid..then rotor diameter and pad surface area. By going to better pads you normally increase braking force...which is the reason why many AP/Alcon calipers that use 365mm rotors etc have less piston area then std Nissan gear. Because the assumption is they will run good pads with higher friction coefficient + bigger rotors which also gives increase in braking force...when it comes to the piston area they are smaller then std calipers. This is an attempt to stop waaaaay toooo much front brake bias, because std its all pretty good. Its all about stopping fade so they increase rotor diam, increase pad area and reduce the piston area to maintain essentially the std braking bias whilst adding loads of thermal capacity LOL, probably makes no sense...I best read this again in the morning when I have not had two bottles of red, beers and watched The Thing (Both 1982 and 2011 )

Disagree....at that level of motorsport...you need to read the traffic, the cars, their pace and the drivers to the best of your ability...going through that gap at full tilt was in my opinion to high a risk (not that my opinion really matters) No doubt they are all more experienced than me...but I think that was a gap he should not have gone for at that speed >_< Out of interest were you entered on the day? Sure, its important to hold your line but the MX5 was kind of occupied reading the pace of the Boxter. LOL, its just another reason why I ever want to race. Look at the vid maxima posted...it can go pear shaped very quick with such a speed differential. I have been wathcing some German VLN races because in 2013 I genuinely hope to do a few 6hr events in Europe on the cheap and frankly I am scared out of my mind by the accidents you see due to different classes of cars

I already have the jacket because I love Lotus...even if to some its not the Lotus (road car or F1 team) of old....I just love Lotus vs all the homo Itlian and German junk on the road I imagine there is going to be a lot of disappointed Russians out there...but ... I liked Petrov, but he whilst he had good race craft and was a great defender and character....he lacked a bit of the outright pace needed to be in a top F1 seat.

FARK YEH!!!!!! Burn in hell RBR. I will continue to show a minor interest in your BS team because Old Son Mark is still a resident pilot in your squad. But for 2012 I will wear my Renault-Lotus Black and Gold with pride baby!!!!! :worship: + So happy for Grosjean...he will do well alongside Kimi, who wont be out to play mind games with his new upstart team mate....good combination in my books. And hats off to Lotus managment, in particular Boullier for grooming a guy...realing his talent and then giving him a seat. Not something that happened under Old Flavs watch FARK YEH!!! Now I am pumped for 2012

Serious? Paid mechanics installed calipers upside down ? Fark me there are some thieving muppets out there who have no clue about anyting other than taking peoples money off them

God....at least it was a race then. I saw the lack of a comprehensive cage in the MX5 and thought taking their practive sessions far too serious

Serisouly? So they had an MX5 out there with no cage (well it may have a main hoop but thats all...racing with GT3 cars? Man...recipe for a Greg Hansford isnt it?

Interested to see more info about the whole setup .... GTSt/GTR/ turbo and manifold setups

I know with injection etc that people take them out to just under 5L and they make 450hp with revs on board. The one in the TRX made about 300hp so made for a quick car back in 1990

Grosjean appears to be ready to fly the white flag and go hang out in DTM with BMW. The RBR programme seems rather cut throat and ruined some your careers but you have to wonder if a talent like Grosjean was in it would be be sitting in the wings or progressed through STR and into RBR by now

You will get better advice if you can tell people what tyres, what suspension (inc spring rates) do you have any swaybars etc.

Lets see who guesses what is coming? Looking at the stickers on the car it appears to be a PIARC day... glad I am not in this session

Cyber EVO now runs GT spec Brembos...so now got SERIOUS BRAKES under it

A friends Dad had one of those Rover V8s in a TRX Bluebird that had the Bathurst mock up guards etc. Was a pretty tough conversion!

Oh, only 1 sec improvement and work in progress Still...looks tough

Fark...so where to from here? Just re-trace your steps and give the same setup another go?