Steve

Mark, do you have cooler and exhaust? Cos the power you are quoting is below what the stock turbo is capable, so I dont know where whoever sold you the turbo gets off calling it a high flow. - somethiing is just not right there, sorry to say.

where does the standard AFM start to pose a restriction? I dont know who told you this, only time it would make much of a difference is when you start pumping out beyond the flow rate of an 80mm pipe (which is the size of the afm). Not too many cars around that do this. If on the other hand you were to mention the tuning restrictions when your AFM reaches max voltage, that would be a different story. Darrinspencer, best bet would be to find out who has been tuning cars with Wolf, what sort of results they have had on R33. Unfortuneately, not every place in australia has the benefit of a tuner who knows how to get the best from a wolf system on R33, alot of places that I have spoken to here in SA dont want to touch it (seem to think its an ecu for rotaries) - whether that be from ignorance, past bad experiences or lack of product knowledge - I dont know, but I would not fit one unless a tuner that I respected told me he was comfortable getting good results with it. At that price tough, it would be worth buying, you could sell off the ecu and AVCR and make a few dollars. Either way, the AVCR is a good boost controller.

Zman, NVCS is the variable cam timing on the inlet side only on R33, but I think R34 has both inlet and exhaust. Phillip, also if you had an adjustable inlet cam gear fitted, you NVCS wont work.

If you unplug the NVCS, you should notice the difference when you are driving. It comes on around 1200rpm and cuts out at around 4200 from memory on an R33 - so you lower/midrange will feel alot more sluggish. The best way would be to put the car on a dyno and look at the power curves with it plugged in and without.

JimX, I interpreted the vain of this message (wrongly) to be implying that the dyno readings quoted from SST to be jacked up to accomodate 'stupid' people.

JimX, even Rev210, who generally doesnt like dyno power claims, agrees that rob77s car is making the power he claims, same dyno and tuner as did GTSt's car - so your WA dyno figures being jacked up theory is pretty much mute in this instance. Even tuner of the car has offered to let the dyno dynamics rep run the car on the rollers. On a different tack, did you Rob or Paul, get a run in at the 'plex last night?

Please do:), cant ask for better than that.

JimX, would you feel happy if you car had 230rwkw but only felt like it had 200? Or 300 but felt like it had 250 - there is a big difference either way

Crunching noises are never good - it means something is wearing or being damaged. I would get it looked at asap

You could disconnect it (unplug). If it isnt doing anything, you wont notice a difference when you drive:)

yes, inlet.

OK, I'll bite, what has running 28psi on a stock VL got to do with getting 60 extra rwkw by fitting an ecu?

I had my car tuned at morpowa, very happy - in fact I got 26rwkw more than a previous tune with no increase in knock:)

Sydneykid, I am somewhat mystified too, as my injectors were at 82% duty with 203rwkw and stock fuel pump. I think there must be something else going on here though, too many people I know have got more power than is theoretically possible with the stock injectors - here in adelaide both BOOSTD and Whatsisname have made over 250rwkw with stock injectors, BOOSTD uses a stock fuel pressure reg, and still has room on his injectors even now with 266rwkw - and is using less than 1 bar boost. I have driven side by side with BOOSTD, me with a HKS 3037 and 550cc injectors, him with his hybrid and stock injectors - very similar output, and there was nothing in it when we were both on full boost. Another thing is that whatsisname had his car tuned by the same guy I did, similar power figures, he had stock injectors, I have 550cc. Why is it that when I say I made xxx amount of power and I had 550cc injectors - everyone accepts it, or at least doesnt challenge it, different person, same dyno, same tuner, stock injectors same output - no one believes it??? go figure. You are right, it doesnt add up, I like it when things dont add up, as it means that my thinking is being challenged, and an opportunity to learn. I would dearly love to know why and how, but at this stage all I know is it does happen, not how or why. The dyno that Paul's car has been run on was tested correct, the same dyno that Rob's car was tuned on, both made what theoretically cannot be done, as people here have. And they arent the only ones who have done it. There MUST be something in this....... it seems that by adding a high capacity fuel pump (the fuel reg isnt a common factor here) that the stock injectors flow well beyond what they 'should' flow. This is somewhat in line with the fact that alot of people have experienced overly rich mixtures purely by adding a larger fuel pump - which shouldnt theoretically happen as the fuel pressure reg shoud regulate the fuel pressure at a constant. Ah well, perhaps no one will ever know.

If you just want to change the oil, perhaps you should do it yourself??? You could buy the oil from coles and it would be even cheaper. Think of all the money you can save:)

ROFL

PS: I dont think there are too many people that dont have alot of respect for Sydneykid, or dont value his input.

Because he can:)

Bloody cows need to get their shit together:D

Isnt the 56T a HKS only for the GT30?

Joel, atmospheric pressure is 1 bar, boost of 10lbs is 0.68bar, added together is your multiple factor for the capacity (or absolute pressure - which is quite often the way turbo compressor maps are represented), so 2L engine times 1.68 is 3.36L of air (per 2 revolutions). With a 92% efficiency, multiply by 0.92 = 3.01L (3.091) of air for every 2 revolutions of the crankshaft. divide 3500 (for 7000rpm) by 60 seconds = 58.3 (induction strokes per second) times 3.01 litres of air = 175.48 litres of air per second at 7000rpm. A/F ratio of 12.5/1, so 12.5litres of air for every cc of fuel, the engine would require 14cc of fuel (175.48/12.5) per second, or 50 litres of fuel in one hour (0.014L x 3600seconds). Also an RB25 at 7000rpm and 1 bar boost would consume 268.3 litres of air per second, so 21.5cc per second or 77.4litres per hour. I hope those figures arent too far out - perhaps Sydneykid would like to check them for me:D the only problem is that basic calculations like this dont take into account the density of the air due to temperature and the size/efficiency of the turbo. there must be a method of calculating the amount of fuel required per hp and engine produces, which would be more accurate. DISCLAIMER: I really am not sure if these figures are 100% kosher (ie method of calculation), so flame away all you mech eng types etc

Or perhaps it is easier, or the turbo shops dont have the expertise? Either way, it is excellent to hear, as I am sure it would save alot of money. My friend had exactly the same turbo (2530) and ended up buying the whole centre (and exhaust wheel) at a cost of around $1500. Even if you posted the turbo to Japan it would have been cheaper. So next question, does anybody know of shops that will rebuild bb turbos, or is it a DIY job? Cheers

they must of shipped it to adelaide???? the car was built in adelaide, and resides in adeliade as does the owner, Danny Vahoumis, who is also the proprietor of JMS. The car travelled to sydney once, but that is a completely different story. Also the car made 448rwkw, not 478rwkw. You really should get things straight before you sprout them as truth - otherwise, as stated before, all you do is add to confusion and the already huge amount of disinformation on the net which helps no one. Plus you have just shot your credibility to pieces on here.

Garage the thing for gods sake, or sell the other car. Once the new import rules reach full swing, and it is impossible to buy a modified skyline through a dealer, the price of the cars can only increase once people start to realise exactly how much it does cost. You know you will regret it later.

:whackit: to expand, there are only 4 ways that I know of to increase the power from an engine Forced induction Increase revolutions increase the number of cylinders increase capacity given everything else being the same, a larger capacity engine will always create more power. If the 3L engine was so prone to twisting (god know how) - I am sure that guys like sydneykid who use one for the track, would be only too aware of that and wouldnt build as many 3L engines as he does. Also John Munro and Kier Wilson, infact OS Giken are all morons cos they use 3L blocks. And I am 1000% certain that isnt the case.