Sir Lord Van Von Vader'ham
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Posts posted by Sir Lord Van Von Vader'ham
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with the new bub (both really) taking up much time, heres a bit of a bulk update
bought this for no real reason. its flash
and this, the old mspec one got a leak some how
i have finished the duct, am am happy to say that it works! in my garage at least. while bleeding the radiator and using a big fan, you could see steam (water dropped on rad) being sucked up out of the duct.
took it for a tune up and wheel alignment last week.
not great news, motor is getting tired and is down a little on power. also seems to be boostin a bit later, maybe because of the new 3in cooler (after i/c) piping and T/B?
Good news is they found my boost issue (after I replaced all the joiners, damn it!) Turns out the boost controller solenoid had a bit of crap stuck on the pintle, keeping it open. thus the mad lag - not sure why it stopped it going past 13psi though.
fuel pump is on its way out too, so i'll be looking to upgrade to e85 after wtac
work it baby
cut more holes in the bonnet, sorry pete!
pretty much ready to go, another gearbox to be put in next wend
forgot to say, splitter v4 million now on. spent some time redoing how it attaches to the car, now slides on via two horizontal poles. the splitter and front bar are "one piece" all i have to do is slide it on, attach two front and two side cable support and bolt the top of the bar at the flares. takes about 1-2min as apposed to 20ish minutes before. and takes my hefty 100kg standing on it
thinking of using some yellow vinyl and "hiding" these front panels a bit.
got to see the spaced guards work too. smoke from welding the pole on (bit of grease) came up thru it and so i waved some air past and again you could see it drawing the smoke out.
bay looks a bit neater too. new intake pipe etc
i've spent a some time sealing up the front as best i can. all holes/inlets except the big one and oil cooler feed on the drivers side are blocked off and the bonnet is sealed now as well-
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I'm in for this
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Good luck guys!
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Thanks man. Yeah im looking to use some pinchweld kinda like whats used in doors.
From what I've read it will help reduce the pressure underneath the bonnet area which will help with more d/f. Also less going under and out the back to reduce drag. This is just how I understood it so fell free to correct me
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I'll cut a relief out or something.
So, in an effort to increase front down force (as I think the rear will be defiantly overpowering it now) ive started playing around with the cooling ducting again.
Previously I have just had some duct/guilds in front of the intercooler and oil cooler. Then I blocked off all the other holes (brake ducts are now coming from the splitter) and try to fill any gaps in the front. This gave about 5-10km more on the straight at wakie which I was quite surprised about.
Next thing on the list is to give the air coming in to the engine bay somewhere to go. again, just doing research/copying what others do. The air coming through the rad is going to be vented out the bonnet. Also going to redo the intercooler duct at the same time.
First I had to lean the rad forward for a bit more space. I have also order a new koyorad, as this one has started leaking
Templates made up
Unfortunately, I am going to have to cut a bigger hole in the bonnet. This is where ive marked it, but it may change.
I’ll also fit some louvers to pull air from the turbo side
All in all it should help cooling, reduce drag and increase front d/f
Any thought/critics?
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Could this be fitted in to a 25 box? What else is needed?
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Im not going to coota, that the same day as the due date for my wife
Not much done over the weekend, had to help a mate move house.
Diffuser is refitted, had to chop it down by 450mm. partly because of the new setup and also i wanted it sitting up a bit and tucked in behind the diff. thought being to help stop parachuting and to keep the diff cooler.
im also going to have to do something about the tow point. would a webbing tow strap attached to the existing point be acceptable?
either that or i'll just cut a hole in it or something. -
Just copied this from 31 culb as im lazy.Well, ive been slack again. Sorry for lack of updates, been really flat out at work and I hate trying to do it on the phone
I haven’t done anything on this car since the nulon nats. But with 2 month til wtac and 1 until my next baby is due to be born I though id should get hustle on…
Nulon Nationals as a well-run event, guys at Nulon put on a really good show. Definitely worth going to see round 3 at coota.
I was still struggling with a couple of issues on the day. Again boost. I now hate boost. Im buying a v8 and putting it in cause I hate boost… hmmm VK54….
Some reason its now underboosting to 13-14psi and very, very, laggy. I was putting the pedal flat well before the apex of T10 and it was only reaching 13psi halfway between there and the pit wall.
The other problem was understeer. But I have put that to a couple of things. Very worn tyres, not enough camber on the left front (going of the temp reading from the tyre) and/or my front LCA position. I haven’t changed the roll centre since its been lowered.
Still somehow managed to somehow nab Fastest RWD at Nulon Nats with a 1:05.3
Heres a chump photo
WING! Took a bit longer to fit up, but I think is going to work very well. Very solid now. I ended up cutting off 50mm an end.
New front rotors are on. dont normally like crossdrilled, but thats all i could find.
Safetywire is fun.
Ive also redrilled the holes for the front LCAs, now sitting 25mm higher than before, which hopefully will improve the roll centre a bit. I nab a pic tonight.
Next on the to do list
Trackday to test the above
I have been given a fresh gtr box, which I'll have the gearset transferred into my box.
Refit the diffuser
Fit this shiftlight thing, hopefully stop having to look at the tacho
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I made mine out of marine ply (15mm), like Russ's its flat and goes back to the steering rack.
My understanding (not a professional) is the splitter works best when there is the greatest pressure difference under the car. So you need to block off as much of the front of the car as you can so air doesn't go under the car from through the front bar.
I also added a NACA duct on either side under the splitter for oil and intake cooling.
It will only work if it's solidly mounted to the car, if you can't stand on it (80-100kg) it's not going to me doing much.
as above.
I have used both alupanel and normal ply. the alupanel is about $120-150 a sheet, ply $50 a sheet. Ply takes a lot more abuse where as the alupanel is kind of like a knife if you go off track (which i do a lot
) and can dig into the ground and rip off. interestingly thats when i learned how much it was helping, in all but 2 or 3 corners a wakie after it came off my car started understeering a heap more, like a normal 31...my splitter comes out about 80mm from the bar lip and goes back to the crossmember. it also helped a lot with cooling.
ive learnt alot from the aero section in here > http://www.timeattackforums.com/forums/
you still down the road andrew? your more than welcome to come have a popeep
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just off ebay buddy. the engine ones are r31 specific
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Sorry for lack of updates, been really flat out at work and I hate trying to do it on the phone J
Yeah, Andrew, went alright for a box managed to somehow nab Fastest RWD at R2 of Nulon Nats with a 1:05.3
Was a well-run event, guys at Nulon put on a really god show. Definitely worth going to see round 3 at coota, but bubs #2 due date is the same so I’ll be out…
I was still struggling with a couple of issues on the day. Again boost. I now hate boost. Im buying a v8 and putting it in cause I hate boost… hmmm VK54….
Some reason its now underboosting to 13-14psi and very, very, laggy. I was putting the pedal flat well before the apex of T10 an it was only reaching 13psi halfway between there and the pit wall.
The other problem was understeer. But I have put that to a couple of things. Very worn tyres, not enough camber on the left front (going of the temp reading from the tyre) and/or my front LCA position. I haven’t changed the roll centre since its been lowered and I thing the LCA is either horizontal or slightly raises up to the hubs. I think this is making the wheel gain positive camber on compression, I’ll try and find the pic that made me think this.. So that’s something I’ll be working on asap
Haven’t done a thing to the car since, but im starting to get stuck into it now. Theres a heap of things that need doing and I want to try and squeeze in a couple more track days before WTAC. So basically before the next bub is born.
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got good life out of them, i think. i've had them in since 2012 and done maybe 5 trackdays a year. is that deemed acceptable?
that said, i wouldnt mind trying something else. although they are the right pads for my callipers i have to shave them down 2mm each to fit. very annoying..
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Ferodo DS3000s, they chew the hell out of the rotors though.
Edit - i mean before they backing plates were on the rotor!
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Im waiting for my new front rotors, but have thrown in the new pads incase they dont arrive. cause to old ones look like this.
and this is what i pulled out of the gearbox
but otherwise im on track
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Cheers man
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Does anyone know if the 25 and 26 shifter bush is the same?
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Thank you for the kind comments guys
I completely agree mate, going to try a bit more next time on a cleaner lap. as you'll see from the in car it was quite sloppy
the top 10 shootout
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What a weekend!
Day one
Had a blast at NSW Time Attack, day 1 started off with a bit of a low point the boost issue I thought I solved was still there. It ended up being a simple fix in that I had to connect up the boost controller.
I have always ran off the spring pressure to control boost, but for some reason the levels seem to be overriding that now. Maybe due to everything working properly now for a change lol
Next issue was that it was only going to 14psi, for the next two sessions, but that was just a kinked hose to the gate. Turbo gods must hate me.
I then had a couple of good, trouble free sessions except that I was having trouble with front brake lock up again. Didnt think anything of it other than my being a bit rusty. Got to test the strength of the new splitter a couple of time in turn 10 gravel trap, it is super strong ….
….but that left me with a false sense of security. Managed to snap of the W/G line during the off due to a hose clamp the was off scue, and brought me back to the pits in the last session of the day
Day one ended with a best of 1:06.7
Day two
Session 1 was fine, nothing really remarkable happened except for another off at turn 10 due to lock up. That’s went I realised my stupid bias adjuster was wound the wrong way again (My fault, but to wind it out to close it and do it up to open!) basically locking off the rear brakes! Fixed that again.
Session 2 was better, the car was pulling up a lot better, funny that, didn’t have any offs, and got more laps in. after I came back to the pits and got a drink from the tuck shop when I saw I done a 1:05.5! was over the moon beating my PB and could go home a happy man.
Session 3 was good but couldn’t better my time with a 1:05.7. decided to call it a day as I need to save some tyre for the Nulon Nats in two weeks. And the gbox needs a rebuild, crunching bad into 4th and 5th.
John boston then come and asked if I’d like to be in the top ten shoot out as some ppl had left early and others had broken cars. I said yes and thanked the two greatest words in the English language .. DE-FAULT! ,DE-FAULT!
Checked the fuel, down to the last 3-4 litres. Decided to swap the front and rear wheels, rears are wearing better the the fronts now, checked the pads and saw I actually ran out (maybe another reason for the later lock ups). The backing plates were on the disk and bananared from the heat – oops.
When out anyway intending to just have a fun lap with a bit of sideways but they pulled up well enough on the warm up lap, so I said f**k it and went for it. Missed 5th on the straight twice, bit of sideways and came back to the pits where I find out I beat my PB again!
1:05.2!!!
Couldn't believe I did it on such a sloppy lap, and now have a bit of renewed desire to beat the time down some more. Hopefully in to the 64s next time
skip to 3:18 if you want to watch it, incar will be up soon
TL:DR
New PB, good time had
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new pb for me
SAU Nickname: Sir L0rd Van Von Vader'hamCar Make and Model: R31 skylineCircuit Name: Wakefield ParkLap time: 1:05.2370Timing method: NatsoftModificationsEngine: RB30DETPower: 330kwSuspension: S13 coilovers, F&R Whiteline anti-roll BarsTyres: Advan A050 255 wideBrakes: wilwood superlite front, r32 gtst rearBody weight: 1200 kg -
Sacrificial splitter v4.0 coming along. just need to make the air dam tonight
I have tweaked the mounting design a little to make fitting and removal, quicker and easier. Will also have two heights, either 65mm off the ground or 80mm.
I used a thicker panel this time too, 17mm, hopefully will survive more than one off track exclusion. Its also very ridged, I did a stand test on a narrow offcut spaced the same width as the mounts and It barely bowed. which will improve downforce as the alupanel was flexing heaps between the mounts before.
My boost gauge stopped working and I ordered the wrong size to replace it. This is the stop gap if the next one doesn’t come it time
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bah, just let the pads self clear! lol
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Do you mean so the flat of the splitter kicks up at the wheel arch?
Ive been meaning to make a 'fence' at the back of the splitter/bumper, just haven't gotten around to it yet. I see if i can add something like yours while im at it.
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Also forgot to mention.
I have been doing a bit on sealing up the front end. as i read from Dogzillas facebook page even with his splitter he was getting 40kg of lift due to air leaking though the front (advice from Andrew Brilliant) and he has been making a new one-piece front. so i of course stole this idea/advice and and set about trying to improve what I have.
I have used some dense foam strip and packed it under the bonnet sealing to the headlights and grill. Blocked of all bumper grill except the right top which I finally ducted to the oil cooler and added more shroud to the grill inlet and blocked off the outside holes so that all air hitting the front now can only pass through rad, intercooler and oil cooler.
I also taped up the air inlet at the base of the windscreen, I could actually see this working with the rain mist completely missing the bottom of the windscreen.
The front grip felt really good until I lost the splitter. But the amazing thing was how well the cooling worked, water temp would not move over 80 and oil sat at 65-70deg. Normally would be at 100 and 90 respectively even on a cold day.
Will be a winner for October
you can kind of see it here, "holes" are black now
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Had a mixed bag kinda day at WP on the weekend.
Fatz had problems again with his(miss fire), as did easto (Gearbox).Only Neil got off scott free
I had a couple of problems. boost issues (again) and the front brakes binding so only did 3 and a bit sessions
I put the binding issue down to the new hubs being slightly different and just needing to self-clear/wear the pad down. Unfortunately this lead to hot brakes and on a cold, wet day meant they would lock up very easily.
This lead to when catching up to a slower car at turn 1 (a genuine WRX 22B, one of my all-time favourites) I tried putting on a little more brakes, locked up and had spear off on to the grass to avoid running up the back of the 22B (would rather cube my car), ripping off the splitter and destroying the lip/airdam/mounts etc. luckily I didn’t puncture a tyre running over it.
I couldn’t find the boost issue over the rest of the day. It would spool to 5-10psi to 4000rpm, 15 by 5000 and hit 20psi by 6000. I pressurised the system when I got home and found several leaks in the lines and the mani gasket on port 6. This actually was a good thing as I had to pull the hot side off I found the new oil return line from the turbo I recently put in looking very clean. this is a little worrying and could have blown the turbo…
Hopefully this will all be fixed and I should be boosting merrily away at NSW Time Attack weekend after next.
Good side of things.
The new rear is amazing! So much grip, even in crappy weather. Even from the side lines my mate was telling me how stable it looks everywhere now. I did a 1:08 in the 2nd session (normally around 1:11s early in the day). Not bad considering the above issues and I haven’t driven this car since October. J
Silver lining for the splitter is that I got to feel the difference from one session to the next. I didn’t realise exactly how much it is helping and on how many corners. I thought it was maybe two or three but its working on just about all of them, mega amounts of understeer without it.
New splitter to be done this weekend, but inm going back to wood for this one. I want to make it a lot thicker, around 25mm (alupanel is under 5mm) and make the leading edge round in an effort to stop it digging in and ripping off next off track excursion I have. After next race, I’ll be using it as a template and making one out of foam core and fibre glassing it.
Im going to try and upload a vid in the next day or so
Richos R33 Gtst
in Motorsport Builds
Posted
Enough meat in rotors to drill and retap?