bcozican

Because build thread 👀 #content First step in addressing some mechanical and aero understeer issues Some strakes for tunnels under car Moving to using a 24mm thiccc boi whiteline rear sway. There was way too much rear roll mid and exit cnr as it was way soft and we just didnt get a chance to tune suspension with new aero additions etc so had to put up with it. Increasing spring rate to compensate will critically effect drive so a no at this point. Staying with standard front sway

All I heard from both of you was put my old aero on the M3 and run clubsprint Has tune n pipes bout 500hp for my wife and only does 4km a day school trips basically haha i dont know how much they are anymore but I ran a ppg in 5 speed box in my skyline and held decent in sprints for 2 seasons at 600hp

would swap but already have skyline and in W.A 😅

Shows how much better that are when you let them breathe. Good results

it is bosch motorsport ABS yes so very tunable the front shows we have a little bit of margin in psi before it becomes 'over' psi but not alot the rears cant even get close - but they being used to their max with a twin piston smaller rotor setup doing rears and getting some more rear into it will be first step but yes the tyre is the limit and this is now saved, tuned to its max by abs in reality apart from all the technical stuff a real factor is I prob dont have big enough ballz or ability to push breaking much further 😅 trying to stop a 1200kg car from 265kmph + to 90kmph down a hill from the 75 mtr mark (in W.A - barbagallo ) on a semi starts to get out of my pay grade I think the biggest stop at SMSP is similar in T2 240kmph down to 75kmph from about the 75m mark the excuse book isnt out as the the brakes can do the job but its a - just - type situation

nice ive come this far now on a semi - i think a slick atm is too soon - can still maximise the 050 yet and obviously stay in open class but maybe a slick if I keep doing this for a while and see where I can get too especially in w.a dont need heeeeappps of brake but would like a bit more for 'safer' braking which i'll then push more anyway ha. The rear is just under for the load im giving it and the rear is a rotor and caliper size issue although these old nissans are 70 / 30 f to r anyway I feel the front is doing way too much - the abs is getting a workout . moving the front to a 380mm rotor on front vs 365mm might be margin especially given the potential additional weight etc - the caliper and pad on the front are good

^^ thanks and agree Im about as honest as it gets about all this here are some comments on a few things for what they are worth, some my see this as a big lump of text, some may take something out of it. Either way I'll write some thing just because: - Never in a million years did I think Id have a car to this level let alone spend that amount of time effort and $ for one event, but I have and did. Im just a normal guy - not even really a car kinda guy but obviously decided this will be my 'thing' for a while - The unfortunate thing is the $ I spend just to get to compete in WTAC is what some already there or closer can either not spend or get to spend the same amount but actually on racing like tyres and track time - as Ive been told - thats the way it is suck it up or dont turn up - and thats the right attitude coz its true - Competing at WTAC was for alot of reasons - to see where I sat actually doing it not thinking about it watching the live stream, challenging myself as a whole including getting there, organising the whole thing and everything else that goes into it as well as competing itself. I can say Ive done it, not as an ego or promo thing but to have an experience and be able to tell some good stories when Im old and cant do sh*t - One thing that I didnt realise that would come is the enjoyment of others being there and involved that wouldnt otherwise be there or a chance to be that involved at this level - for the first time in a long time Ive come away from an event and all it entailed pretty content overall, the effort, the result* (even though it wasnt as good as goodve been) and direction to go - this is big for me because I always have come away from others just wanting more. Whether this is because it was my first time or what I dont know - I think what the above is saying is, I still want more ie: go faster, but think I now know my limits on many things but also new challenges and also, if I want, have a new direction to go / race in That being said: I think the car as it stands is good enough to be generally competitive at a high level. With a few minor tweeks to setup, and some seat time it should be quicker I have been given a list of tweeks, changes, adjustments and some mods to do should I wish to advance the car a little further. I reality these are largely just adjustments, changes or additions to what I already have and it becomes my choice to do them or not Once we started to do some proper laps we experienced some good amount of understeer - this is both a suspension and aero thing. this will be addressed. We are maxing the injectors out. Even on the top boost run on dyno we are limiting the power. But that power is enough anyway. we havent run max power on track yet. But bigger injectors will be needed to run the car 'safer' Brakes - the brakes did their job and did stop - but they are running at 100% as well with no real room for extra push so prob need to look at at least upgrading the rears from the little R34 gtr setup and maybe some tweeks to the front. All pending. I dont run a pedal box rather a replacement servo situation with std peals stil, so a povo pedal box, it does the job but isnt optimal. the $ has always gone somewhere else. Dont know if this will be address or not yet We will run W.A Time attack here at the end of Nov. with very few tweeks compared to what it ran at WTAC. It is not about winning that anymore its about using it as a focus event to do the best PB time I can get Will have a bit of a rest - decide what of the list we will attack At this stage Id like to do WTAC again - if so it will be a case of trying to do things a little different and smarter 2nd time around - like not driving for 4 days straight and then expecting to do well at a top event on a track youve never driven before 🤪 Will try get the car and myself over earlier for some practice etc But then again - while allocating it differently - it still comes down to time, effort and $ Really general stuff: A pro driver - whether they are thrown into a car or the get to prac in the car previously seems to be about 1 to 3 secs better than a 'normal' person Slicks proved to be at least 2 secs faster in lap times over the 050's prob a bit more

2 piece is way to go - some mechanical sympathy and mine was lighter even with massive uni ball etc as materials used can be thinner

thats hard to answer - but a blanket answer is: on a base level the answer is no - no one just with a bunch of mates having a crack are doing that well without adding layers of support etc on top but.... also nearly every team even through to the top has an underlying bunch of mates helping run it no matter what the level was - and thats the bit I liked thats the thing - look at open class this year - the 18 or 20 cars in that are all off chops even the clubsprint cars these days are just wild

im not going to go into peoples budgets - not my place but put it this way my guys,/ crew have been around racing for a fair while and it blew some of their minds even at what I did then the next step up and that wasnt even the top teams what Rob said as a minimum I think and then upwards from there and if your not prepared to break stuff or spend extra while there then I think youre being unrealistic unless you are happy just to cut laps what I have gathered recently / rapidly (including myself up until about 18 mths ago) most people honestly just dont know what it takes to give it a go $ wise and application wise let alone do half OK and are very desensitised to the fact these are just not normal cars/ times/ budgets and its not just about buying this part and that and a shiney splitter and video's / incar footage makes it look way easier than it actually is 😅

even with the rb25 and 3" side pipe and gate into the ground this car had a good raspy note but going the billet engine and increasing to 3.5" and little bigger gate pipe its changed it again... maybe its the head and the extra revs sessions are 15 mins but they flag you for a cool down after 12 mins. spose if your car could take it you could get 5 hotlaps but if you going to WTAC to do 5 hot laps a session and looking for a good $ to lap ratio I think your prob in the wrong place the $$ spend and how each person / team does it is interesting to see

Thanks mate thats awesome appreciate it. Had a few people say car sounded good and bit different to most others.. i never get to hear it from the outside ha Thanks! 100% definitely agree... will do w.a time attack take a breathe decide if im going to go again and make a plan with exactly that. No point going otherwise, seat time on that track is much needed to be faster and more consistent 👌

😆 nope punked out and flew home last night , mate driving it back... but yes feel pretty junk right now still ha but yes I can do that.. 3.5 day drive over was long, not that hard as such just alot of hours but just wears you down - which started to have an effect on you later Event itself. Summarised Prac day: Session 1 - 3 yr med's no power - found out which way track went did 1.37 Notables - Im not used to using 2nd gear and very slow hairpins, track is very bumpy alot of the times mid corner Session 2 - same as session 1 - got more used to it 1.36 notables - was trying to use 3rd in hairpins which wasnt workng - overcooked 6 but slowly getting the track Session 3 - put old very worn softs on - still no power - 1.34's - sort felt good two laps a session - total 6 laps going in right direction Day 1 - Session 1 - morning session - told I wasnt ready as driver but new tyres bit of boost and might just lay down a time Felt good - little messy but not bad, got blocked on 9 was down 22kmph and cost about .6 sec then through 10 and 11 was getting traction control cuts. Mid 1.34 - shouldve been a low 1.33 at least Found out front wheel was lifting causing undriven wheel to slow so traction control would cut - fixed Session 2 - total junk thought someone had done something to my car - track was so off it was like driving a drift car and the car ate a water pump belt - fixed - horrible Session 3 - not too bad cleaner but not faster - started to forget to push the throttle down and reverted back to old habits not new way to drive the car I was just purely worn out at this point 😅 Day 2 Session 1 - was actually ready for semi full send with confidence - coming onto front straight for first flyer the ecu cut power - did 2 x laps with no power - good laps but not fast - hit an injector limit that didnt reset - hence no power - and got blocked - waisted results wise but I spose it was laps Session 2 - track hot but some cloud cover - little slippery but actually got the drive the nuts off the car with no probs and get a semi decent lap in then the car ate a water pump belt but better Session 3 - last go - drive it pretty well on medium power was clean enough - for some reason got a cut coming onto front straight cost 0.37 and a 1.32 but did a 1.332 backed that with a 133.4 messing up t2 and 2 x power cuts *** Chunky gains other than just track time Front straight top speed is there and more in it if wind up powas - time there T1 speed needs to be higher but is not horrible - time there T2 - T8 hairpins started to get better - time there T9 stay out wider T11 - kept messing up the line and understeering - time there *** I did a total of 18 hot laps - over the 3 days I just need to drive the track more 1) for me as a driver 2) to actually start tuning things like suspension, aero, power trims and similar which we barely got to touch other than the above few what I call little issues the car ran really solidly - we are in the ballpark even with the time we did car is very much quicker - the sectors and data shows are good even with what we covered over the 9 sessions which is not us at anything above 80% really combo capability is pretty spot on to where we thought it would be which is nice to actually see it not just guess few adjustments - poss some upgrades and some track time and if its not at least 2 ++ secs quicker there is something quite wrong Overall event was good as a driver and to be honest the other aspects of it were better than I expected also - so objectively while id like it to have all come together a bit better and produce a better time overall a win in reality for first hit out at WTAC and SMP Actually met Rob ... and a heap of others which was good anything else just ask

yeah I'll be there 😄 think im more worried about the drive over than the event atm ha

Really good. The fella goes ok Got a great w.a crew too though Dont worry Ive never Had that much success that quick ... ever... i quickly packed up and snuck away from the track before something happened 😄 🤣 Hmm drag car, no thanks sounds a tough one

He literally only did setup laps in the morning on damp track and low power - but still went closeish 😅 hmmm put it this way i went well over 1 but under 2 secs quicker on no more power than previously run, plenty more on tap and old tyres Only did 11 laps - got told to pack it up we're good

Usual photo dump from me: Full hotside and rewire done - I dont get excited about much but the wiring is top notch The office is functional and comfy - getting to be alot to remember and think about though sometimes 😆 Fuel system wasnt going to do what we wanted to updated with new surge intank with some walbros and super mega flow fuel filter + wiring and sensors Finally got it home after few months gave it a wash even in the rain ha Fitted up the new Syd Comp aero few other bits got some wrap fixed up and nearly ready Dyno time was on with the team all went relatively well made good powas - was injector restricted even pushing them to max but did the numbers needed was back to my house for full suspension check, look over, change and other things. Finally got a test day in Didnt take us long to get it working very well - pretty good result in such a short period of time, surprised me, but if you look at the million hours of work that went into the lead up it should be expected but not always the case. Car is just good. Full stop We came a way with a list of things to change, fix and ammend but nothing major its just work to be done in the next 3 weeks then we are off

awesome effort and results well done goes alright the old girl !

Youre a special individual sir 😆

negative

I know alot of people like that 😄 Im the other way - car is good Im junk so I have to work harder Which Pro am car is it ? The reality of the combo reaching its potential first time out is extremely unlikely but hopefully have a decent experience and hit out and you never know Yeop he will be over here in just over two weeks for a few days to get us in the working window very quickly then will be heading things up with the rest of my guys as obviously he has a few other cars too

It massive to get over there, compete at a decent level and back cant be a big fish in a little pond in w.a forever im ok with it being the other way its a challenge nice 28's is extremely fast. we think we got a decent idea what my car can do... the problem being the driver and the lack of SMSP track time. But thats part of the game!

Thanks mate! yes its only 7 odd weeks away and my cars not even ready yet 🙄 😅 typical.. See you there!

Surprisingly not - or not that I have experienced to the extent its been detrimental - overall the car is the most compliant its ever been to be honest In saying that I dont go near high ripples and only take on very low one, bumps on slower corners circa < 100 kmph seems to go fine - relative to a more circuit only orientated suspension setup with no aero I cant say because its been a while now so my perspection might be skewed We have a track down south at Collie that that is more technical and slower speed corners it handles it relatively well but has a very bumpy back straight I struggle there at speed it skips sideways half a lane at times but not unbarable but I dont think my car is optimal for that particular track Also I might add tyres and tyre pressures play a big part in all this - part of doing all this was moving from a 295/30 to a 295/35 profile tyre its a big difference in height of sidewall - the difference in compliance and extra 'squish' of the tyre aids in both mechanical grip and compliance/ handling with the stiffer/ limited travel suspension and management of total actual car travel under compression over and above what the suspension does... but then you also have to take that into account to keep it off the ground also

interesting to see how it goes.. I may have documented it early in my build thread with only a rear Origin wing (which lets face it does nothing but add drag) I initially upped the fronts first like you to 13kg left the rear the same - too much understeer still upped the spring rate from either 6 or 7 to 8kg from one event to another was only 2 weeks apart - changed literally nothing else in the car picked up 0.75 sec a lap consistently on a 60 sec lap as the balance of car just got better Re: engine bay 😆 In WTAC open class terms at least I still have a relative OEM front end most are tube framed - im getting to see why over and above just weight recently ha