Lithium

Slightly different, E85 costs less than PULP per litre and officially could be available from the pump... so quite different from race gas. But yeah I get what you are saying. I find it interesting that no one over there has managed to get more than 320-330kw @ wheels out of one on pump gas, though I am not sure exactly how harsh your dynos are. In the states there are people who have done around 350kw or so on PULP on Dynojet rolling roads and Dynapacks. Either way, I'd call a GT3582R more suitable for 350kw @ wheels on a drift car - you're going to be in high revs most of the time anyway, surely?

Fair enough, I wasn't sure if E85 was quickly becoming the new premium or not - I'd imagine if it came out here we'd all be getting tuned on it. I know everyone who has access to E10 here are doing so

I never saw PULP mentioned before you, Nismoid - I thought E85 is pump gas in Oz these days, too? It is showing up a lot around the world....

Kindof on this topic, a mate of mine has an R32 GTSt with a stock RB20DET which he has been building to go as fast as possible on a budget. At the moment it is running a stock RB20DET, a cheap T3/T4 on the stock exhaust manifold, stock intake manifold, a GTSLink ECU, Mitsubishi VR4 fuel injectors and a Walbro fuel pump.... essentially quite a basic setup. Unfortunately still running the stock diff/axles/gearbox too.... It was initially road tuned to 20psi on BP98 and with that it went well as it was, busting out a best of 12.4 @ 115mph. We ummed and ahhed about the best way to get good gains safely for minimal cost (as many do) and settled on going to an E33 blend which we had hoped would allow us to squeeze a bit more out of it without having to upgrade the fuel system. We ran it up on the dyno initially at 20psi on BP98 to determine the starting point, and it kicked out a fairly respectable 247kw @ hubs with quite rich afrs. All looked well, so we drained the BP98 and mixed up our E33 batch for it and poured it in and got to tuning. We were pretty pleased to find that we didn't have to pass our 85% "cut off" for injector duty cycle, and particularly happy with the 294kw @ hubs result we ended up with - also 200-300rpm better spool and way more torque across the board to boot. So far its only had one meet where there wasn't that much traction and the owner was taking his time a bit in light of the weak R32 drivetrain just to see how it went - he ended up with a 12.1 @ 118mph off a 1.8x 60ft which isn't too bad going for a 4door R32 with simple enough mods. For the last run of the meet he decided to give it the full beans, but it snapped an axle so we didn't get to see the 11 we were hoping for Anyway I thought it might be a bit of an interesting story - especially as there are a few people out there looking for more power cheap, or squeezing horsies out of the old RB20. Dyno plot for perusing:

Awesome! Very much look forward to seeing how it goes

This will be interesting - do you have a dyno plot in storage somewhere which could be overlayed with the T04Z one to see how much more lag etc you get on the same engine spec? Any reason for going the T04Z over something like a GT4088R? Shame the GTX-series turbos aren't out for a bit, I have a feeling if Garrett do a GTX3582R T04Zs will lose a bit of their edge

Looks good so far: I compared the GTX4294R with a GT4202R compressor map - the 94R has more everywhere, awesome!! Here's hoping they spool like the GT4294Rs.... that could change things quite a bit.

I wouldn't really go leaner than 12:1 personally, the high 12/low 13 AFRs are ratios suited to NA cars... turbo cars like a fatter mixture but yes, the air fuel ratios you have are terrible. I'd consider checking to make sure you don't have an air leak somewhere.

^ Agreed, I know a couple of people who have used .63 GT35Rs on their 1.8litre FWD track cars with traction being a much bigger problem than lag haha. One of them have changed from a 1.06a/r housing because THAT had issues with lag between gears. Despite that, it would run around 140mph within the 1/4 mile though haha

Stock ECU? Sounds like its running with a waste-open type situation, but if you haven't upgraded your ecu/fuel system then there is no point for a t3/t4 there anyway so just go a stock turbo.

On RBs front 3 and rear 3 cylinders fire alternately so unless he has done some weird arse collector design they shouldn't be too hard to separate.

Do what you said above, split pulse the manifold and go a split pulse GT35 - probably will be never quite as good as the GT30R but closest thing to having your cake and eating it too

I forget, do you drag race? I'd love to see what yours would do down the strip, I'd have thought that it'd be in the vicinity of 10s on decent tyres? Surely there must be some temptation to bust out a real fast time like that using far less turbo than most do

I would be going for the TS Gt35R, definitely. I am not convinced on the BWs yet - they COULD be really good but there are contrasting results for them, while the GT35Rs are a very known quantity.

I have a Trust PE2 on mine, its perfect for my needs - has a nice smooth growl to it on low accel, which is enough to hear but isn't loud. On cruise its pretty much silent but at full noise it lets out a hell of a roar!

I believe RIPS drag R did it with back seat etc etc, though agreed - its all a bit excessive at times where you need a cage and a chute and they are clearly not really streety street cars anymore.

Yeah I know what you mean, GT3071R sounds like the best for what you are after- but if a BW S256 was an option I'd put it 3rd to the GT3076R. Managed to dig out a GT3076R and S256 back to back on the same setup, details of each turbo etc is clearly available so you can verify there is nothing unfair to hold the S256 back like what some of the BW sellers have been known to do when comparing theirs to GT-BB turbos. Solid line = GT3076R, dotted line = S256. Thread here for all details: http://www.honda-tech.com/showthread.php?t=2220363

Borg Warner S256 dyno plots I've seen haven't impressed me that much to be honest, the problem is you don't always know how well things are working on any setup. I'd definitely sooner go a GT3076R than one!

Wow, 308kw is really good power from that turbo - imagine that with a TS setup the spool should be not far off the GT2871R too!

If it was a VTEC engine running that turbo, it could have been more at the start and even more at the end The peaky thing is for when they don't have a turbo doubling (or more) its effective displacement +1 for twin scroll GT3076R!

Yeah, its terrible news - RIP and condolences to all affected by this. Definitely highlights the very real danger of having and using high power cars like this.

Yeah I can understand estimated power, but the spool is a bit different. Oh yeah, wouldn't be surprised if a GT3788R matched a T04Z in power and exceeded its spool (a GT4088R probably would outspool a T04Z too) but I wouldn't be too surprised if a T04Z made more power when pushed hard so not really apples with apples.

How are you going to tell when a turbo would come on from maps, and without info on the rest of the setup?

Hmm I think a pair of GT-RS would outflow a GT4088R, and on the same note also be laggier. We'll see how RIPS' GT4094R RB30 goes with the GT4094R as there are RB30DETTs running GT-RS to compare it with, in theory they should be the most comparable combinations mentioned so far. Do you know anyone who has used a GT3788R? I'd be interested to hear how they react on a petrol mootr , I have never heard of one being used on one. I kept a bit of an eye on for them but not sure what to expect. GT4088Rs are a much more known quantity... and I'd happily use one if I were aiming for the mentioned power range!

I know you know the Garrett catalogs better than anyone, but that above was an awesome contradiction - you don't know for sure which manufacturer Greddy turbos are based on but the wheels are still better designed? I really respect your turbo knowledge but seriously... I don't know the answer of the T618Z vs GT-RS comparison, but don't underestimate the offerings from Mitsi. I also would have thought that a T518Zs would have been a closer equivalent to a GT-RS? I know in the real world I would sooner go with a Mitsi TD05-16G than a Garrett GT2871R - in single form. They are honestly the closest thing to "Too good to be true" I have come across in a small frame turbo suitable for up to 400hp.