
GTSBoy
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Everything posted by GTSBoy
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I'm firmly on the "zero compliance is good compliance" for FUCAs. I'd be looking to solid metal joints even if the primary reason for having them is because they facilitate the twist in the arm. I have never been more happy with the way the front suspension behaves than I have since I got rid of the FUCA bushes. Even the thin little (short lived) poly bushes in the Whiteline adjustables have too much compliance for my liking. It probably won't be long before I have sphericals nearly everywhere, probably including both top and bottom arms in the rear, and I'll start complaining about the increased costs for dental work. But I will be enjoying the driving more, I'm sure.
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Brake pad Compound suggestion
GTSBoy replied to Vee37's topic in V Series (V35, V36, V37 & Infiniti)
Plus, you'll get great experience in bedding in pads! -
Brake pad Compound suggestion
GTSBoy replied to Vee37's topic in V Series (V35, V36, V37 & Infiniti)
Does not mean what you think it means. The continual rising coefficient is the coefficient of friction that continues to rise with increasing temperature. Not "rising during a single stop", except inasmuch as the brakes should get hotter during a single stop. The RR would not be the best choice for a streeter. Yeah....no it's not. JAX would rummage around in the "shit pads we use for all shitboxen that come in here" and install those. -
🚨 Need Advice! Overcharged for Engineering Report 🚨
GTSBoy replied to vas's topic in General Automotive Discussion
This is actually 2 whole different trains of thought that need to be addressed separately. No, as Matt says above, "Engineer" is not a directly protected title. A lot of guys who just do mechanical design via CAD, with or without even some sort of associate diploma in engineering, often have the job title of "Design Engineer". A train driver can probably still describe themselves as an engineer. But, to usefully get employment with anyone as a proper engineer, you're going to have to have at least the necessary and relevant degree qualification. You're not going to get a job as an electrical engineer if you have a chem eng degree, unless you can demonstrate x number of years of working in that capacity, sufficient knowledge, etc. Having the degree is at least in indication that you've seen the relevant text books, even if you haven't read them (like pretty much the last 10 years of graduates!). To be a self employed engineer.....you could get away with quite a lot pretending that you're suitably qualified, without actually being a proper engineer. But, you will find yourself unable to work for a large section of the client space because a lot demand CVs and capability statements when considering contracting for any engineering work these days. Insurances too. If you're not a proper engineer, it will be much harder to obtain proper PI insurance. Insurance companies have gotten hip to that. The "Professional Engineer" thing is a thing in Australia. If you have the right qualifications and experience you can apply to the relevant engineering top level body (mostly Engineers Australia, the less said about whom, the better), to be assessed and approved as a Chartered Professional Engineer, CPE. There are high bars to get over and a requirement for CPD to maintain it. The RPEQ thing is similar-ish, in that you have to demonstrate and maintain, but the bars are a little lower. It is required to be RPEQ in order to sign off as an engineer on any engineering design in Queensland. The other states haven't fully followed suit yet. There's "engineering" and there's "engineering". Being an engineer that signs off on timber (or even steel) frames for housing projects, council creek crossing bridges, etc, is a flavour of civil engineering that barely warrants the name, description and degree. That would be soul crushing work anyway. Being an automotive engineer working in the space where you have to sign off on modifications to cars and trucks would also be similarly soul crushing. At least partly because of the level of clientelle, their expecations, depths of bank balance, etc. And that brings us to your second question. No, we do not have professional engineers "do vehicle inspections". Well, not the regular roadworthies, etc etc. That's done by mechanics. There might be some vehicle standards engineers at the various state govco inspection stations where cars go to get defects cleared and so on, but that's because they (the cars) are there specifically for defect inspection and clearance and so the stakes are a little higher than on an annual lights and brakes working check. But, if you modify a vehicle in Australia, you have to get it engineered. A suitably qualified (and effectively licensed, which I will get back to) automotive engineer will have to go over the application, advise on what would be required to make the mods legal, supervise some parts of the work, inspect and test the results, and sign off. The "licensed" aspect comes from there being a list of approved engineers to do these things in each state. They have to jump through hoops set up by the govco vehicle standards divisions that mean only the suitably qualified can offer to and approve such mods. -
Meh, it's only got to last another 10 years or so until you'll be forbidden to drive it. Keep it dry and forget about it.
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The ECU doesn't care if the solenoid isn't there. There's no sensing/feedback from the solenoid. The ECU just gives it power, or not. Make sure that you Nistune tuner knows damn well how to tune a Neo. They suck. You have to take a lot of care to override bullshit to do with the boost sensor and a few other things to stop them being a dick.
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The stock boost solenoid is just a valve. Power it and it is open. Unpowered, it is closed. When it is closed, there is no boost bleed out through the solenoid back to the inlet. The wastegate sees all the boost pressure, thus you get the wastegate's spring pressure as your boost pressure. 5 psi. When it is open, it lets some boost escape. This causes the static (boost) pressure in the line to the wastegate to be lower than the pressure in the intercooler pipe. There is probably a small restrictor in the solenoid or one of its lines to limit the flow rate of the escaping air, which limits how far the static pressure can fall, which limits the extra boost. The boost has to climb above the original/wastegate setpoint until the wastegate sees 5 psi. You get 7 psi in the intercooler pipework. A manual boost controller is exactly the same setup, just without the ability to change it on-off. It's always set to whatever you set it to. There is a small leak from the boost controller. The more you screw the adjuster in, the more it leaks, the lower the pressure seen at the wastegate and the higher the boost will be. So, yes, your diagrams are correct.
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Brake pad Compound suggestion
GTSBoy replied to Vee37's topic in V Series (V35, V36, V37 & Infiniti)
Initial/early bite is a feature of.....generic pads. Things that work cold. Just put Bendix Ultimate in it. If you don't like them, it's only $3.50 wasted and an hour to change them. I've been using Intima SR, and they seem to be a good performance pad. Street friendly and able to take at least a little beating. -
I swear at my GKTech ones every time I have to take them apart and replace a spherical. But I wouldn't swap them for anything else. They absolutely slay every other option, at least in terms of how they actually work. You sure you don't want to live with bearings? I mean, they don't have "ball bearings". They are rod ends and sphericals throughout. Tough as nuts, even though I have found more than one way to wear them out.
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🚨 Need Advice! Overcharged for Engineering Report 🚨
GTSBoy replied to vas's topic in General Automotive Discussion
Yeah - but it's not actually that easy. There are limits for HC, CO, NOx and particulates. Particulates shouldn't be a concern in any petrol engine unless trying to comply to the very latest Euro standard. But getting a tune right so that all the others stay within limits AT THE SAME TIME is not a trivial exercise. You couldn't possibly get it right by just guessing at the tuner's dyno, unless he had a 4 gas analyser up the pipe, which is not often the case these days. It used to be. Every decent shop that did "tune ups" (as opposed to tuning) would have a 4 gas analsyer. Perhaps there's still quite a few of them around these days. But most "tuners" are only watching O2 and power readings. -
🚨 Need Advice! Overcharged for Engineering Report 🚨
GTSBoy replied to vas's topic in General Automotive Discussion
f**k. I charge that per hour. -
🚨 Need Advice! Overcharged for Engineering Report 🚨
GTSBoy replied to vas's topic in General Automotive Discussion
Can we see a scan of the original quote? The problem with engineers (and by this, I mean, all engineers across all engineering industries) is that there are "engineers" and there are "engineers" (you'll have to imagine the two different vocal emphases on those two versions of the same word. Engineering is a mindset - your farm kid who spent his life rebuilding the tractor will likely make a good engineer. The farm kid who spent his life taking photos of butterflies.. perhaps not. But on top of that mindset, the modern engineer has to learn how to write so that there is absolutely no way of being misunderstood. Proposals/budget estimates/quotations are one place where this is absolutely vital. You have to delineate your scope of supply with extremely hard boundaries, and anywhere where there is any possibility of not being able to have such a hard boundary, you need to write language that will cover you from scope creep, cost overruns, the inevitable interference of the client or their "engineer", etc etc. Now, if your clients are the BHPs and the Rio Tintos of the world, and similar, then you get good at this. If you are an automotive engineer, pitching work to the great unwashed masses, your skills in this area might not be well developed, because you're only dealing with knuckle draggers trying to get a big block legal in a Torana. And when I say "might not"....I'd suggest there's a better than even chance that any such skills might be completely absent. So, we might be able to look at your quote and see what the opportunities are for rebuttal. -
R33 gtst gearbox top barb
GTSBoy replied to zigrb30's topic in Suspension, braking, tyres and drivetrain
Oh, yes. If you connected it to the manifold your first drive would be very eventful. Very shit. Very interesting. Perhaps take a video if you feel the need to see. Terminating the breather at the top of the bellhousing is normal/stock. Some gearbox lubes (hello Redline Shockproof) like to foam up a bit and require the breather to be extended up higher, so you don't get spots of smurf jizz staining the floor under your car. Mine is thus right up behind the head. Make sure you fit a u-bend at the top so it points back downward so that dirt and schmutz has a harder time getting into it. -
R32gtr sputtering and stalling
GTSBoy replied to thejacksta88's topic in R Series (R30, R31, R32, R33, R34)
Only in a market where OBD was a thing. The rest of the world was quite happy to let the US EPA only affect US cars for quite a while. The* problem with datalogs is that unless you are very familiar with what every trace should look like, on their own and as an ensemble, you can and will see weird shit that can and will lead you astray, not realising that what you are seeing is the normal consequence of various transient inputs. *Really, "a" problem, as there are of course many other problems too. Look, these cars are so bloody simple that if it is missing or stumbling, the obvious thing is to break out the old mental diagnostic list and just go do all the things that you know you should. After proving that the plugs are clean and sound, ditto the coil stalks, coils, loom connectors, etc, and then making sure that there is fuel pressure at about the right numbers (while driving!, not while sitting in the garage free blipping it), then maybe you go looking at AFM voltages, manually testing the igniter, putting a scope on the CAS, etc. Then you're into pulling the injectors for a spray pattern look-see and perhaps a clean, squirting carby cleaner around the inlet manifold looking for leaks, and all the more annoying and esoteric, but still common as muck faults that these things have. I wouldn't ever bother looking at the trims, as they are usually bullshit on these old clunkers anyway. -
You wash your mouth out. He knows what he's got!
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R33 gtst gearbox top barb
GTSBoy replied to zigrb30's topic in Suspension, braking, tyres and drivetrain
Absolutely this. Yes, except not vacuum hose. Something oil/fuel safe is a better idea. -
NPboosted manifold fitting purpose
GTSBoy replied to eli995's topic in R Series (R30, R31, R32, R33, R34)
No. The ECU's hose is for a connetcion between the plenum (assuming single throttle body, not ITBs) and the ECU's internal MAP sensor. This is the primary load measurement of the ECU - so you need to get this one right. This has NOTHING to do with the boost contol. The wastegate also needs to see a boost signal - but it is actually far better for it NOT TO COME FROM THE PLENUM (again, assuming single TB, and not ITBs). This should come from the turbo's compressor housing (assuming there is a nipple on there, which there might well not be), or on the boost pipe somewhere between the turbo and the TB. On the pipe from the turbo to the intercooler is usually most convenient. The boost controller is then located between that boost source and the wastegate, ACCORDING TO THE CORRECT PLUMBING DRAWING FOR THAT BOOST CONTROLLER. There is no general diagram or instruction that will be correct for every case. Then the other ports on the plenum are for purposes such as Duncan described. If the boost controller has an internal MAP sensor, for a boost display, etc, then it will want to be hooked up there, alongside the ECU and the FPR. -
One of those Proton utes then. with an Evo motor in it. Gowahn!
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The usual gamble is the usual gamble. Hawkins bought one last year. Very nice, found in Japan via the usual mates. Blew it up just driving it around. It's just roulette.
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I think my main complaint with your idea is that there is a veneer of idealism spread across it. You want the simple numbers to make it easier, but all they will do is make it easier for someone to come to the wrong conclusion because the fine details will kick them in the nuts. As it is right now, the tiny bit of arithmetic is NOT the obstacle to understanding what will fit and what will not fit. The reality of trying it is what determines whether it will fit. If you had a "standard rule" that R34 GTT guards have that magic 100mm space from the hub face to whichever side you were worried about, and someone said "excellent, this wheel is only 98mm in that direction, I'll just go spend $4k on them and jam them on my sick ride".....they would just as likely find out that the "standard rule" is not true because the rear subframe is offset to one side by a fairly typical (but variable) 8mm on their car and they only have 92mm on one side and 108 on the other.
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But offsets are simple numbers. 8" wheel? Call it 200mm, near enough. +35 offset? OK, so that means the hub face is that far out from the wheel centreline. Which is 2s of mental arithmetic to get to 65mm to outer edge and 135mm to inner. It's hardly any more effort for any other wheel width or offset. As I said, I just close my eyes and can see a picture of the wheel when given the width and offset. That wouldn't help me trust that a marginal fitment would actually go in and clear everything, any more than the supposedly simple numbers you're talking about. I dunno. Maybe I just automatically do numbers.
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And....if that could be true for all R34 GTTs, then it might be good. But in reality it is not really any better than my standard instruction to "go out and have a look at it yourself, and wave a tape measure around" etc etc, because as soon as you have any adjustable arms, or coilovers with smaller diameter springs, or tyres that have any bulge that goes out further than the rim, etc etc, then the simple version of the information is still potentially misleading. Plus, nothing in this is static. Everything is moving. At the rear the wheels swing inward at the top as they go up, so the clearances on the inside change as the suspension is compressed. At the front it's even worse. And then you have the difference in absolute wheel position in the arch can move around more, or less, depending on how compliant the bushes are. If, like me, you have sphericals on the front caster rods (and on the FUCAs also, but these are probably less dominant when it comes to wheel position), then your wheel will swing forward/backward less under loads than some others, but as well as up/down, as well as steering angle. You end up having the simple numbers with 17 caveats/footnotes for each.
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Isn't this what everyone immediately sees in their mind's eye when someone gives them a total width number and an offset?
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R32gtr sputtering and stalling
GTSBoy replied to thejacksta88's topic in R Series (R30, R31, R32, R33, R34)
It won't be this - not while it's driving, anyway.