GT4 Zed

I think oil consumption is particularly a problem with the Rev up engine There is no set patern to the consumption and on average i need to top up between .5-1L every three months. therefore I always check the level weekly or before any major hoon. From your comments above the DE appears to be fine but i will still do checks for peace of mind rather than get oil damage.

Black is beautiful

Congratulations to you and the missus Welcome little Finlay. My boy is 10 months old now and i can hardly believe it

Paul you are nuts GLWTS

Reduced to £350ono Bump

Bump

good tip

Hi there mate, (thanks again for the brake thread) Im interested in your statement about the utec unlocking the "true potential" of the car. I have a TT setup and was thinking whether i should take it out and go with uprev or retain it and find an authorised tuner to check it over for me etc. If you have the stock APS TT setup and its running fine why would you want to change it? I take it comes with the Unichip piggyback which is fine. It may not have the other capabilities of UTEC or other more sofisticated piggybacks but it works. However if you mean you actually have the UTEC with your APS TT and you want a fine tune because you have made some changes or plan some upgrades or to run more boost etc then any tuner can remap it. The software to do this is a free download from Turbo XS website. What i meant by unlocking the potential of the car is that putting mods without a remap (eg with Uprev or a piggyback eg UTEC or standalone ECu eg haltech for that matter) is that it does not realise the full gains possible because the factory ECU is self-learning and want to always revert to the OEM tune. With a reflash or an EMS you make the gains that these mods bring and safely. Both systems get you the same objectives in the hands of a good tuner. I mapped my UTEC at Thor racing and had no issues. Abbey is the guru with Uprev and tuning in general so i'm sure he can remap any ECU or piggyback if he has the software as the principles are the same. When you say 'unlock true potential' what do you mean exactly, can you quantify that, what exactly would the utec have over the uprev? As above there is no point comparing both systems as both can realise your tuning goals. the choice depends on you, cost, availability and good tuner. There are small differences how with how these system go about doing the job but it is really not that different in the grand scheme of things your gains will also depend on alot of factors and is too long to try and explain. the main thing is if tune correctly the car will be an improvement over standard and still be reliable. Please dont take offence as thats not my intention, just trying to learn no probs mate. i answered you last questions on the BBK btw is that ok?

Andy, I have have till next summer to keep the zed and replace it with a and IMO the best mods that made the most peformance improvements for track use was the full suspension upgrade and BBK so for my last trackday season next summer i want to get the full bracing kit and upgraded bushes(mine have gone), engine /tranny mounts and possibly an LSD to optimise the handling for this last hourah. I hope to save 15sec off my Ring time and nail an 8mins BTG flat Though the 30+ hp gain i had with the UTEC and mods was nice i am quite happy to sell this and the mods to offset the cost to get the above as it makes no sense to spend more on a car that is going in about 8 months. I have already sold my HFC, MREV 2 and other bits. I will be putting the full catback exhaust system, plenum spacer and some other bits for sale soon when i get them off. My suspension and BBk have already got a firm buyer for next year so there you go

don't take this too hard mate! there could be a ton of reasons why it underperformed and may not represent the cars true Hp figure. you would expect to see 240 - 250 whp on the rev up though. i would say get all your mods sorted and go for a remap with Uprev or you can get my UTEC EMS for about the same money and unlock the cars true potential. I got a GT4 too and had all the same mod you want to go for

Lee man, how the hell are you? you are the most elusive guy on this forum so its an honour to hear from you have you got you stripped zed racer going?

I think what ceaser is saying is true about the overall performance of synthetic oil and though they have a good performance envelope there is still a small amount of engine wear albeit far lower than with mineral oil, so letting the oil come up to optimum temp before letting hell break loose is sensible and important for engine longevity or performance. WRT oil temps at the track the same applies and as noted by Steady and djtimo you tend to see temps of circa 135c on the track and though the oil can deal with this range it is not optimal so a thermostated oil cooler that maintains the oil in the optimum range is advantageous especilally in endurance racing. i have also read that 90-105 deg c is optimal for most modern engines so why not keep it within that range. i also do agree with wasting oil by too frequent changes when it still has useful life and i am guilty of this too but again i see it as cheap insurance. It will be more effective just to change the filter and get rid of the particules and contamination but really how do you do that without changing the oil too? The same applies on many things we do on our cars to improve performance. this is possible becasue the manufacters leave a lot of leeway to ensure longevity, meet regulation or reliability but you can always improve on it if you go the right way about it

Sold

+3 on MPS2s But most important are, anticipation, a good feel for grip and a light right foot

Well done mate

100% sure for now Its too early and the weather usually unpredictable at this time of the year 1) Wasso 2) Andlid 3) Darren-b 4) P15ULT (Paul) 5) ThomasSoerensen 6) Rob-Hughes 7) GT4 Zed 8) 9) 10)

your tune is fine I was just refering to how some people can make baseless assumptions by making senselss direct comparisons rather than end results or actual improvements. I will bite your fingers off for the Haltech anytime or the SSV

No probs Mark In the heat of argument you write down things differently from your thoughts, i did not mean to say that but rather that piggyback can do a reliable job and have been doing so for ages. Reflash is getting more and more popular and are an alternative. IMO i think that is the future of tuning. However I don't understand what you mean exactly as you should be aware that the UTEC does not intefere with cold start ie open loop control and other functions eg TC, cruise control and lets the OEM ECU do its job but take over by it lets you control fuel and ignition timing, also because it has its own injector and coil drivers you have direct control as oposed to signal trickery employed by simpler piggy back systems like unichip. In moddest NA tune the fuel control is by MAF Pull Up/Down. MAF signal are intercepted and added or subtracted up to 50% to the signal and ignition timing is referenced by RPM vs MAF and resolvable in 250rpm increments with 10+ load sites on the whole rev range from 500rpm making for very accurate control combined with injector scaling. There is also knock control features and retard capability safety. So because the OEM ECU controls open loop fueling on start up there is no issues and on closed loop the UTEC goes about its business as above via maf and references from the OEM sensors. There better close loop control as in FI applications there is the option to use speed density fuelling via MAP for high loads while lower loads are still covered by MAF. other features include - spare drivers to run water injection, meth, N20 etc. - datalogging - remote map switch - adjust rev limit - and upgrade the software when new upgrade are available so i have no doubts that the UTEC is capable and i have not had any issues with it and my dynos support this. Just like UPrev reflash is a very good option in your hands which was want i wanted to stress. I would look out for your track upgrades and maybe paying a visit next year to get full bushes and bracing kit fitted and possibly a quaife LSD and 3.9 FD but will not order anything yet as i suspect you maybe offering a full one stop service on these . thanks for you clarifications.

Mark, i hope you have not taken this out of context mate. I have never said anything bad about the Uprev and in fact have lauded its capabilities. i even said i may have got it if i was arouns when i needed tuning which is why i went for UTEC. But the argument is why should the impression in the forum be that there is no other way to tune cars apart from Uprev? I know you are a business man but for our benefit to enable choice we also need objective assssments from people like yourself. You have said this before that you don't think piggyback works on the zed so how do you explain all the cars running on them and making reliable gains. i think you need to clarify this in the interest of objectivity. There are many things you have said in the past eg about tests you have made about bolt-on mods gains which i have agreed upon and found similar results will testing with the UTEC and shared in the forum you can't say i am biased. i will keep the same high esteem for you or abbey and will never hesitate to use your service or recommend it. cheers

Hey Anders i was not refering to you directly in my previous post. But in anycase there will never be a correct answer for your question as there a so many variables eg mods, condition of the car's engine, skill of the tuner and preference of buyer. That said most of the proven system in the market deliver results if well tuned so it comes down to budget. For example, i know that the Haltech standalone is an awesome system and is not comparable to a reflash or piggyback as it offers more tuning possibility, but based on a subjective argument, am i right to say that its inferior because in the horsepower leaderboard thread your car made less power with similar mods (and more eg SSV) than other cars with Uprev relash or even mine with the UTEC? That would be nonsense don't you think? Thats why i said we should make objective points rather than supposition or hearsay which is sometimes to easy in the forum and helps nobody

Before this degenerates into a d--k swinging contest i was just proposing another alternative to the OP spending his £500. I expect to sell my kit around the £300-350 eventually so it is should be attractive IMO to the OP, leaving him with money for fine tuning his mods as there are already a few maps on the UTEC to play with or to go FI in future. Uprev is very good and will cost similar money but to say it is better or more sofisticated than the UTEC or Greddy e-manage is just pointless. Moreso the UTEC is a very atypical piggyback the way it controls the car unlike other piggybacks which trick the cam/crank sensors to alter timing! All i can say is just look at the popularity of the UTEC/ e-manage/unichip etc in the states and how often they are used to make big FI power as opposed to reflash eg Uprev and Technosquare which are more popular in optimising bolt-on NA tunes. This is because i suspect they run out of resolution as they are limited by the OEM ECU drivers. The OEM ecu is very good but was not designed for high Hp applications. Bottom line it comes down to the tuner and your budget There are limitations to both if compared to a standalone and even the standalone is not without cons as OEM non essential functions maybe be disrupted. So please be factual or offer objective advice

Herewith my review after over a year of onwership and a real trash about. I think Wasso's comment says it all I would the following about Ksports BBK: Pros - very good engineering and precision of components. - Complete kit with easy plug and play swap - good quality at the business end of things eg bracket, disc, calliper quality - rivalling performance to established "big brands" eg AP racing - Unbeatable price - Interchangeable parts with AP racing BBK range and can use all also the top spec pads from mintex pagid etc. - If you love your trackdays which i know you do and have the suspension setup to take it then this is for you. when combined with PF 01 pads there is very little you cannot outbrake on the track - Car specific design which make fitting easy and maintains factory brake bias and OEM modulation and brake feel. Even with PF01 race compound cold bite is surprisingling good but when up to temp this thing is just awesome.... staright line braking, no vibrations, no lock ups just repeatable performance with no fade. I have done 5 hot Ring laps and only stopped to cool oil and tyres - Good pad and disc longevity. i am yet to change the disc or pads which have about 75% life left despite all the abuse thrown at it and a skim due to excessive pad deposit ffrom the Ksport OEM sports pads. - Very good support from Apex performance who rep Ksport in Uk Cons - A lot of dust with PF 01 race pads but less with ferodo DS2500 and even less with Ksport street pad. - Squeals when cold. - the OEM ksport streets or sports pads are very good too but for extended trackday they suffer heatsoak and tranfer material to the disc which can lead to DTV requiring skimming. I would recommend then for fast road use and ocassional short stint trackdays but for long stints or the Ring get the PF 01 or pagid yellows because even the DS2500 is not a full race pad. - The calliper paint and non structural bolts heads and nipple heads are in SS so prone to superficial rusting but this can be repowder coated and bolts swapped for rust proof items if the esthetics is so important to you. In summary it is a must have for any serious trackday player. But i would seriously advise fully suspension upgrade and decent tyres as the zed was built soft for comfort and not aggressive track characteristics. I have to change all my bushes now which have been mashed up http://www.ksport.co.uk/products.asp?f=brakes No i am not on a comission or whatsoever

Thanks Ian, Paul's asking price is very good but that ECU just like yours has not been proven to work or has maps ready to plug and play as my offer hence the asking price .