N-Mir Posted July 12, 2011 Share Posted July 12, 2011 Hello all I wanted to ask how to improve my cars performance in terms of safety and power/cooling. I visited a local garage (Revolution) where I have been a fair few times for other bits and bobs for the other cars but not the Supra. I am open to all opinions and options minus the internals which I would like to keep stock and I know this will limit the power to 450/500 Bhp. As most of you will know I have a UK Spec TT Auto. The guy said that Auto are harder to set up than manuals by tuners I was looking to upgrade the full brake system, the guy recommended (Tarox 6 pot callipers and 320mm Disc) for £1700 and said leave the rear stock or Leave the stock callipers and upgrade the disc, brake line and pads and he also said the stock disc are 325mm?. Obviously the second option is cheaper but what do you guys think? I already have, Intercooler, Air filter, Radiator is like new got it fitted 3 years ago hardly do any miles so not surprised, Full de cat, Stainless all the way through back box is Titanium, Boost controller Apexi AVCR but not set up, When I park the car over winter I disconnect the battery and I don't know how to set it up The guy recommended taking out the stock turbo and upgrading to hybrid or larger size? Will I need upgrade other parts like Fuel system? What about the other stuff like cams, Inlet and so on?? Hints Tips and makes of what to get would be awesome!!! Thank you all for your time and help and because you guys are so helpful I actually decided to become a member as well already made payment not sure how long it will take. Quote Link to comment Share on other sites More sharing options...
Supranature Posted July 12, 2011 Share Posted July 12, 2011 Tarox brakes? Uk spec brakes are VERY good, there are several high powered vehicles on here which have kept Uk brakes at 600hp. (Cant think of names at the mo) The Uk Supra actually held a braking record for several years for production vehicles until the GT2(3?) came out. For your intended power levels your brakes are perfect. Best stick to OEM discs is the advice most often given on here. You can still better your brakes performance however for a lot less than £1700. Change your flexi pipes to braided (£60), Chris Wilson fast road pads (£150ish) and then change your fluid to Motul RBF600 ( The above, maybe with tha addittion of a master cylinder stopper to remove flex, will make your current set up feel more precise and "bitey" Use Google to search for instructions on how to set up your particular AVCR. The stock Uk fuel pump is up to the job of BPU, but I would change due to age. There has been much debate with regards to hybridised turbos, basically concluding its not worth the money or hassle for the small gain over stock. Your turbos are capable of 1.4 bar boost. Hope that helps. Quote Link to comment Share on other sites More sharing options...
Homer Posted July 12, 2011 Share Posted July 12, 2011 Supranature has covered things very well. Have a look at BPU (click the blue text) for details how to improve power. You will be limited to around 430bhp at the very highest unless you start making VERY expensive modifications to the fuel system and ECU. At that point you will need to look towards single turbo options, but that is again a very expensive route and far from ideal when retaining the stock auto transmission. If you want to make the most of the TT setup fit a stock airbox, decat, free flowing exhaust and fit the other items in the BPU guide. The brakes you are being suggested is a joke, they have less braking power than the ones you have already. If you have issues with the brake power now they may either need a refurb or simply the pads replacing with a decent set. Chris Wilson on here can supply some extremely good fast road pads for not much cost. Do NOT bother with hybrid turbo's. An absolute waste of money. You will only gain marginally more HP (about 20bhp at the higest level), but at the cost of spool and therefore torque (the bit which makes the car fast ) Oh and you are a full member now, once you make the payment the update is automatic Quote Link to comment Share on other sites More sharing options...
sideexitsupra Posted July 12, 2011 Share Posted July 12, 2011 Seems a lot of money when you can 8 pot K Sports for less? Quote Link to comment Share on other sites More sharing options...
Homer Posted July 12, 2011 Share Posted July 12, 2011 Seems a lot of money when you can 8 pot K Sports for less? And STILL have less braking power than the UK's Quote Link to comment Share on other sites More sharing options...
N-Mir Posted July 13, 2011 Author Share Posted July 13, 2011 Wow you guys just saved me from spending a lot of money for not much gains or maybe even less performance, I almost agreed to the stuff but the guy advised that I ask you peeps first and am glad he said that and I actually did. Am gonna do exactly what you recommended and what I read in the BPU section. I was shocked what you said about the UK spec brakes! Mine defo need servicing if they are suppose to be that good, they do feel spongy. Again totally surprised hybrids wont make much difference! I did find a thread some place on how to set up the boost controller but it just made me more confused Ill keep you guys updated but thanks again! Quote Link to comment Share on other sites More sharing options...
Dnk Posted July 13, 2011 Share Posted July 13, 2011 I have stock uk brakes but with Motul RBF600 fluid and braided lines and there the most impressive part of the car, no need for differant discs or pads imo unless your taking the car on track Quote Link to comment Share on other sites More sharing options...
Abz Posted July 13, 2011 Share Posted July 13, 2011 As mentioned an overhall of your braking system would be best bet for you! Are you happy with the current power of your car? Do you want a lot more power or just slightly more? Your budget will help decide, as going single turbo is a VERY expensive cost unless you have roughly £10k laying around spare Quote Link to comment Share on other sites More sharing options...
Tyson Posted July 13, 2011 Share Posted July 13, 2011 I have standard setup with standard fluid and the stopping power is epic no need for flashy looking 6 pots which will add to unsprung weight. Also get your car on the UK spec register the link is in my signature. Quote Link to comment Share on other sites More sharing options...
EMPEROR Posted July 13, 2011 Share Posted July 13, 2011 Seems a lot of money when you can 8 pot K Sports for less? It's not always the bigger the better, just as Homer said. Braking system is not consisted only of calipers, it's a whole system that needs to be set up right, to work right Quote Link to comment Share on other sites More sharing options...
N-Mir Posted July 13, 2011 Author Share Posted July 13, 2011 I was tempted to get some grooved/drilled disc just for a better look and what I thought would give it slightly better stopping power but if most people thought stock were better after trying aftermarket then stock it is! Ill get a full service and upgrade to braided lines also might get the belt changed, looks tired but if I get some aftermarket ones is it just for look or are they slightly better material? I was thinking pulleys and cams to make the engine look slightly better but is that all they do? The best thing I have seen is the throttle body, I hate my stock dull one and the aftermarket shiny shiny one looks nice but even if it doesn't make much difference I still want to get one! Quote Link to comment Share on other sites More sharing options...
N-Mir Posted July 13, 2011 Author Share Posted July 13, 2011 I have standard setup with standard fluid and the stopping power is epic no need for flashy looking 6 pots which will add to unsprung weight. Also get your car on the UK spec register the link is in my signature. Ill PM the details over in a bit Quote Link to comment Share on other sites More sharing options...
Homer Posted July 13, 2011 Share Posted July 13, 2011 I was tempted to get some grooved/drilled disc just for a better look and what I thought would give it slightly better stopping power but if most people thought stock were better after trying aftermarket then stock it is! Ill get a full service and upgrade to braided lines also might get the belt changed, looks tired but if I get some aftermarket ones is it just for look or are they slightly better material? I was thinking pulleys and cams to make the engine look slightly better but is that all they do? The best thing I have seen is the throttle body, I hate my stock dull one and the aftermarket shiny shiny one looks nice but even if it doesn't make much difference I still want to get one! Unless you are having issues with fade (which should only happen on the UK ones if you like track days), then stick to stock discs. Slotted/drilled discs have less surface area so in normal road conditions will actually result in LESS braking peformance that solid ones. Also, some of the drilled/slotted ones can be very poor quality and are prone to cracking. When you say get the belt changed, do you mean the auxillary belt (the visible one) or the Cam belt? Aux belts are all prety much the same so you can use stock or an equivalent partco (or similar) one. There isn't an "uprated" option as such for this. The cam belt is a service item so if it's been 5+years or 60k miles since it was changed then again stock is fine. Some of the big power cars change these to uprated ones, but unless you are planning on making big HP it's really not worthwhile going aftermarket. Also, in case you didn't know the 2JZ is a non-interference engine meaning that even if the cam belt snaps the engine won't destroy itself. Same story with the pulleys, they'll not make any real world difference on a BPU car. The pulleys on the aux items can be swapped for polished items without issue, they won't have any benefit as such. The crank pulley is a dampened one so only change if you have an issue (or again are going for big HP). Aftermarket ones start around £250, so it's a waste of money on a BPU car. Cam pulleys are another waste, many of the very tecnical people on here have found that the stock cams positioning provides optimum peak power which makes adjustabe ones another waste of money. Some of the aftermarket ones (like HKS) are prone to wear too. You can;t see them anyway unless you change to a perspex plug cover. Not sure what you mean by throttle body change unless you refer to polished/chrome plated items. If you like bling these can be swapped and there are several traders on here who can provide them. No benefit again, apart from being shiney Quote Link to comment Share on other sites More sharing options...
N-Mir Posted July 13, 2011 Author Share Posted July 13, 2011 Sorry Homer I meant Intake manifold for some reason I call it a throttle body lol It just looks nice but I know it only makes little difference probably none on a stock car! Yup the visible Aux belt. "Also, in case you didn't know the 2JZ is a non-interference engine meaning that even if the cam belt snaps the engine won't destroy itself" I didn't know this, actually I don't know much looking back at this thread haha but am glad you guys are here to help and am surprised no ones kicked off because of all the questions I asked mostly resulted me in wasting money rather than mentioning something good that would benefit my car. Thanks again Quote Link to comment Share on other sites More sharing options...
Homer Posted July 13, 2011 Share Posted July 13, 2011 For some reason I thought you might mean the intake manifold On the single turbo's they do seem to give some decent gains as JamieP here demonstrated when he went from stock to a Greddy one. They are very expensive and I don't recall anyone making this modification on a TT engine. I Very much doubt you'd get any real benefit, maybe even some reduction in performance. It is quite an expensive route to take and I don't think the stock fuel rail will work with one (though it could of course be adapted). It's a lot of money for potentially no gain. There are better places to spend your cash. You're doing the right thing by asking the questions here before spending the money. So many have listened to their supposed local experts and wasted thousands on pointless modifications. For every right way to go about modifying there's a hundred bad ways to do it Quote Link to comment Share on other sites More sharing options...
N-Mir Posted July 13, 2011 Author Share Posted July 13, 2011 As mentioned an overhall of your braking system would be best bet for you! Are you happy with the current power of your car? Do you want a lot more power or just slightly more? Your budget will help decide, as going single turbo is a VERY expensive cost unless you have roughly £10k laying around spare To be honest I have owned the car for 3 years and driven it when it was my dads as well and I guess over time you kinda get used to it but at first I was like wow at the power but now it does impress me considering the age but am used to it so not the same feeling. I guess I was trying to improve it slightly just to get an extra kick but I don't want to go psycho and spend loads. so yeah I just want a bit more power but am sure a good service and learning how to set up the boost would do that. Quote Link to comment Share on other sites More sharing options...
Homer Posted July 13, 2011 Share Posted July 13, 2011 Going by your above post, how much boost is the car currently making? They are 0.76 bar at stock, going to 1.2 bar (BPU) is a MASSIVE jump in terms of how the engine makes the power, it completely transforms the feel, in a very good way. You'll gain about 100bhp over stock boost, but the peak power is not what's important, it's the way it makes it that makes BPU such a worthwhile mod. In all the years here I never known anyone on here that hasn't loved the car after going to full BPU Quote Link to comment Share on other sites More sharing options...
Supranature Posted July 13, 2011 Share Posted July 13, 2011 To be honest I have owned the car for 3 years and driven it when it was my dads as well and I guess over time you kinda get used to it but at first I was like wow at the power but now it does impress me considering the age but am used to it so not the same feeling. I guess I was trying to improve it slightly just to get an extra kick but I don't want to go psycho and spend loads. so yeah I just want a bit more power but am sure a good service and learning how to set up the boost would do that. When you go bpu, the difference in power over stock will certainly make you go "wow" again, especially at 1.4 bar! Damn-Homer beat me to it Quote Link to comment Share on other sites More sharing options...
imi Posted July 13, 2011 Share Posted July 13, 2011 I visited a local garage (Revolution) If they are the ones offering you advice on modifying your Supra then you have indeed found yourselves a bunch of monkeys, they should be called devolution. Quote Link to comment Share on other sites More sharing options...
N-Mir Posted July 13, 2011 Author Share Posted July 13, 2011 "There are better places to spend your cash :)" Krispy Kreme? Milky buttons I really would like to buy my uncles Supra but I know he's gonna keep that for a while! Quote Link to comment Share on other sites More sharing options...
N-Mir Posted July 13, 2011 Author Share Posted July 13, 2011 My dad would park the car up and start it every so often but the last 3 years I just disconnect the battery and if the Boost controller looses any settings once the battery gets disconnected the boost hasn't been set up for 3 years I wasn't bothered at first and decided not to play with it just in case I wreck the car! but after getting the info from you guys I really want to set it up but properly! Quote Link to comment Share on other sites More sharing options...
Homer Posted July 13, 2011 Share Posted July 13, 2011 Provide a full spec of the car before you go messing with the boost control. I.e. - 1st cat in place? - 2nd cat in place? - Which cat back system? - Is an FCD fitted? - Do you have a boost gauge? - Do you have an AFR gauge? - Which spec plugs are fitted? If you don't check the above it could end in tears Quote Link to comment Share on other sites More sharing options...
scotty71 Posted July 13, 2011 Share Posted July 13, 2011 in case you didn't know the 2JZ is a non-interference engine meaning that even if the cam belt snaps the engine won't destroy itself. I said this to a mate in the trade, he pulled autodata up and it stated on there that it was not non-interferance?? Quote Link to comment Share on other sites More sharing options...
N-Mir Posted July 13, 2011 Author Share Posted July 13, 2011 (edited) Provide a full spec of the car before you go messing with the boost control. I.e. - 1st cat in place? = Removed - 2nd cat in place? = Removed - Greddy Intercooler - Apexi Boost controller avcr - Turbo timer - Which cat back system? (Copy and pasted) Supplied by Invoauto to Jabbar in Birmingham. This client waited one year for our Generation 3 Ti tanium Limited Edition back box. This is especially designed for high boost 600-1000 BHP vehicles. The pipe work was custom made to fit the G3 universal box. Has a 4 inch straight through, with 6 inch tail pipe.This is the second vehicle in UK to have this special back box and was out on display at the JAE show on 26-27 July 03. - An Invo302 full stainless steel filter was fitted onto his custom made induction kit- - Is an FCD fitted? Nope, where would it be located? but am sure I don't. - Do you have a boost gauge? Greedy Mechanical Turbo Gauge 60mm - Do you have an AFR gauge? Air fuel ratio, if so no I don't. - Which spec plugs are fitted? My uncle fitted them cant remember the make but good ones gonna get new ones what you guys recommended. If you don't check the above it could end in tears Edited July 13, 2011 by N-Mir (see edit history) Quote Link to comment Share on other sites More sharing options...
Homer Posted July 14, 2011 Share Posted July 14, 2011 I said this to a mate in the trade, he pulled autodata up and it stated on there that it was not non-interferance?? He's wrong Quote Link to comment Share on other sites More sharing options...
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