Lithium

Given its essentially a TD08 which is an old Mitsubishi truck turbo, it fits into the same umbrella in my opinion. Even a modern Borg Warner S372 (rough equivalent to T88-34D) will be laggier than a T04Z though. Its still plain bearing, and its still bigger.

They're both rather laggy, but the T88 is VERY laggy. You get that with a bigger turbo which is only plain bearing, and its also overkill for 440kw @ wheels.

Good luck with that Granthem Cheers, I'd really like to think it could be done though I have never seen anyone get anywhere near that quick on street tires. I've not let anyone else drive my car, I actually done fairly well in other peoples cars though. Other people have driven my car (not experienced drag cars) and succeeded in doing impressive burnouts hahaha. Runs are that few and far between that its hard to convince yourself to give the car to someone else to have a go, especially when most of the experienced/fast guys here are running AWDs or drag radials so the launch etc isn't really comparative. Again, I know of hardly any Skylines here which have gone faster than I have on full street tires - even with more power than me. The only ones that have are trapping >115mph. If you're ever in NZ, you're most welcome to give it a shot - I'm always keen to learn haha. Otherwise, any tips on launching an R33 with a solid single plate clutch and a .82a/r GT3076R on street tires and/or drag radials please let me know The car was piece of piss to launch with the stock turbo, I just never actually managed to get to a drag meet where the track was actually dry. I got the thing down the strip with catback exhaust and pod filter (stock intercooler and boost) in 14.1 on a greasy damp track.

Looks like a boost leak to me. Turbo is drawing air in through the AFM but the air isn't making it to the engine as it is escaping somewhere - so the ECU is pouring fuel in to suit the amount of power you SHOULD be making/the amount of air that should be making it to the motor but since the airs not there you are just running really rich. Times like this I wish I had an AFM, as I think I *might* have a boost leak though not too sure.

Maybe T517Zs or something of that sort.

Nice setup Sounds pretty much like you should be looking in the territory of things like a Garrett GT4294R... would be a crapload of fun with a setup like that! A guy over here in NZ with a 240Z running a built RB30/26 hybrid running a T51R-SPL making 661kw @ wheels at 7500rpm on pump gas - dyno plot here: Car has done a flat 9 @ 152mph so far on street legal tires.

Ahh true fair enough, we're used to saying "rwkw" even for hub dynos. Anyway on a more positive note I finally have an AVC-R in the car and will be tuning it to try and give me nice flat controlled boost and HOPEFULLY will be able to get onto a drag strip this weekend While we have such experienced racers here, and talking about getting ECR33s going quicker... I've had a little bit of axle tramp issue with my car running street tires (Dunlop Sport SPMaxx) - I intend on getting subframe bushes but this whole week I've been doing other maintenence/improvement stuff like oil change/replacing rocker cover gaskets/doing plugs/getting boost control sorted and just run out of time. I've been told drag tires CAN "soak" up this problem, and have some Hoosier DOT Drag tires on offer for this meet - I don't want to race if its just going to aggrevate the axle tramp issue for fear of breaking something. Any opinions on this?

Err I don't recall ever giving you flak on your 13.4, people like you/Robo's/2Rismo I have followed the builds and progress on quite closely. You however have seemed to be pretty quick to give me flak - I remember saying (just because I was amused by it) I did similar mods to what you had and ran a 13.4 on a gtech type device, though I did have a different dyno reading to you. In regards to practice and time, where I am we are lucky to have a drag meet every couple of months - and doubly lucky to get a prepped track (actually, airstrip complete with painted markings). I'm not really too keen on practicing on the road and it tends to offer a completely different surface anyway so hardly counts. More often than not the dragstrip is slipperier. When we DO have drag meets, 3/4 runs in a day is about the usual. I practice when I can, and have very rarely been beaten by a car with similar mods when I have raced. Actually the only times I have been beaten so far have been by cars running some kind of drag radial or semi slick tire, I've never raced on drag tires. So yes you guys COULD probably go a lot quicker than me with my car or very similar if you ran my car on your track. However, if you lived in my area you'd probably be struggling to beat me unless you reckon that off the bat you'd beat someone who has been racing at that strip for 7 years now. What you guys are evidently completely useless at understanding is that a lot of the rest of the world use Dynapack dynos - which DO read higher than Dyno Dynamics dynos. What this means that you'd look stupid if you came to an area which everyone runs their cars on hub dynos and ran one of their 190kw cars, went far slower than you promised and then proceeded to say that their dyno read wrong or that the car just didn't have that power. I reckon/would like to think my car has a very low 12 or maybe an 11 in it to if I could get my hands on some drag radials and get to a drag strip - I'm hoping to have a go at it to. My 13.3 was the first time I got to the strip and I'm definitely not professing that its the quickest the car will go with the current power, I *know* there is more in it with practice.

Well Racepace have managed to effectively bait our breath, whats the story?? Is this a setup we'll be able to be told about or pay money for to get it for ourselves? Would be VERY interesting to see that car run on a hub dyno showing boost and rpm

You obviously missed the 9000rpm rev limit bit. Anything you can do with 2.6litres, you can do better with 2.9

Hmm sounds interesting. I have just bought an AVC-R and haven't yet installed it so would be interested in hearing how this works out - I've just been reading the docs to get my head around what to expect etc. Does it hold .1kg/cm2 flat more no matter what, or does it spike? So basically it just looks like its set up to run .6kg/cm or is it that it looks like its struggling to hold .5 but failing? I can't remember, if you have RPM specific duty cycles set does that override the "blanket" duty cycle setting? I guess they are probably mutually exclusive. Also, is there any adjustment on the duty cycle for each gear or anything like that? I'm pretty sure mine is going to need a reasonable amount of tinkering beyond the basic "Set boost to xxxkg/cm and use xxx duty cycle to do so" to hold boost steadily.

Man, insane results - well done There was a guy in NZ running I think low 11s (at least) with his R32 with what was rumoured to be an RB25 (or 26?) running an RD28 crank and rods and some aftermarket pistons resulting in a 2.9l. Not sure how much there is to that rumour, I've hunted around trying to find information on the parts to see if it can be or has been done and documented but to no avail.

Yes it does. Depending on the track and dyno, I've got an pretty damn good "hit rate" on predicting ETs and trap speeds here. You guys just have weird reading dynos

Are you going to use the NOS shot with the new setup?? Again, I suspect this is going to be a damn fast car soon.

I have no idea how you guys get those kinds of times, but they sound extremely unrealistic most places. I reckon a high 13 at ~103mph with 190-195rwkw and maybe a low 13 with MickyT drag radials would be a decent target with a decent driver etc in any tracks/dynos I have come to know. 1.81 60ft on shitty road tires just messes with my head - I have no idea what you did there. Are you running 90:10s etc?

However as mentioned earlier, I personally have an internal wastegate - the reason I had not bothered with any other kind of boost control is that I thought the gate should close enough to do its job. Apparently I was well wrong, Cubes runs a similar internal gate setup and gets similar - before it reaches its sprung pressure it creeps open and slows the rate it builds the last few psi quite severly.

I had a Turbosmart bleed valve in there for that run and for my 13.3 @ 112, but am installing an Apexi AVC-R soon. I can set the target manifold pressure for several different RPM zones as well as the "gain". Also can configure adjustment for dealing with spiking or boost dropping, and have gear specific adjustments to "gain" etc to have different effects or correction in different gears. Powerful wee unit, if you are inclined to learn how to use it properly - unlike the majority who just set a target boost level and hope it works it out.

Not sure if you are referring to my example or not - but what I meant by mine is that the wastegate actually cracks open before I reach 1bar. It doesn't fully open, but opens enough to greatly reduce the rate that it builds the last 3 psi or so and makes 4000-6000rpm feel quite hollow after you have felt how the car goes from 6000-7000rpm. I have an internal wastegate however. See boost curve (and this is done on the dyno in 4th gear, where it will build much more optimally than on the strip): I'd love to know, if its not too much of a hijack - if the experienced racers here think I could gain a bit on the strip when I have the AVC-R in there and set up to hold ~1bar flat?

For what its worth my car traps at ~112mph on street tires on ~14-15psi with a GT30R making 270rwkw on a hub dyno, BUT its not running a very nice power curve - internal wastegate slows the spool from 11psi to 14psi quite bad so reaches 11psi by 3400rpm, but then only 14psi by 6000rpm. Have an AVCR to go in, so will have to try again with same peak boost/power but fuller boost/power curve.

Nice read - very cool Probably the best driving impression I've read so far, including car mags.

I *know* you guys aren't morons and have heaps of experience racing, but saying "220rwkw is NOT 106mph" is ridiculous. Saying its wrong IS an assumption, and given he has a dyno plot for it - is a completely irrefutably incorrect assumption. The fact that it doesn't equate with the dyno you use doesn't change the fact it read 220rwkw on the dyno he ran it on which obviously reads different (not wrong) to what yours does. DON'T pay too much attention to the dyno results, you're right in focussing on the trap speed as indication of the cars true power. A dyno result however isn't a completely level measuring stick for a cars true power - so you can't realistically (unless you are well used to the particular dyno) make any kind of educated guess on what trap speed it should or shouldn't do for a given power level .

Not sure why you posted this in NA performance area, its clearly to be compared to RB25DETs... if anyone got as much or more they have done a crapload. I've never heard of an NA RB making that kind of power, VQ and VK series Nissan motors are where its at for that level. I've actually seen a VH41 make >300kw @ wheels naturally aspirated as well, that was pretty cool. Basically sounded like a motorbike....

All looks on track for this Saturday. Apparently they have done initial tuning/testing and going by the numbers etc which have been going around, its probably going to go "rather fast"

Gah apparently they are having teething problems with it so it won't be racing quite so soon

I believe this will happen sooner rather than later