Lithium

Yeah that should be plenty - so long as it doesn't have real restrictive mufflers etc.

You haven't really given much of an impression of how free flowing your exhaust is etc, so I'm going to be different - go out on a limb here and say just over 270rwkw is possible if all goes well - and if boost control isn't lazy and depending on dyno run rate, 1bar in the low 3000rpm range. Again, all depends on quality of tune and parts, how well the dyno is set up, and how good my crystal ball is haha. Mick_O's prediction is probably a realistic expectation to set, however - I wouldn't aim higher, I'm just being devil's advocate as I think >270kw is in the realms of possibility.

Wonder if anyone can do anything cunning for these like the R35 lads have done for turning EFRs into boltons: Stock R35 IHI turbos: EFR CHRA versus R35: Comp wheels: Turbine wheels: then some mysterious Frankenstein haxing stuff... results in:

What boost will you be running it on, and what kind of dyno will it be tuned on?

To be fair, the aim wasn't that high power wise - so if it falls short it's no biggy, response is the main thing. This will be tuned on a Dynapack by the way, so we're not aiming for Mustang/Dyno Dynamics "whp" type numbers. From memory the FMW options weren't available when this turbo was chosen/bought, and the 62+mm turbos that were available looked like they would be too lazy. The conclusion comes from a dyno plot, it's not a wild bet when the HTA stands up earlier on the plot than the EFR as in the earlier parts of it the HTA line is higher In terms of inertia, if you look at my post I did indicate I had no doubt that the transient response of the EFR would be the winner - but in terms of boost threshold potential the HTA has the edge in the only testing I've seen of it. The EFR's flow was very impressive, however. You of all people should know that wheel aero differences mean you can't predict the performance of two turbos by only comparing the exducer measurement of the wheels only. By that logic a TD05-16G, 18G, 20G and a FP 68HTA would all spool the same and make the same power, 34GeeTeeTee on here went from a Garrett GT3076R to a FP GT3076R HTA with no other changed beyond the tuning to suit and every point on the powerband was up substantially, at times by a LOT, with transient response in a different league. That's the kind of response comparison you expect to hear between a GT3071R and a GT3076R, but without the big flow increase - and that's comparing two turbos with a 60mm turbine and a 76mm compressor Not surprised you approve of the GTX3071R, I think it's probably one of the most worthwhile Garrett GTX series - most of them haven't moved me too much to be honest, they seem very impressive. I think you put too much stock in just the influence of compressor exducer size for trying to anticipate spool etc, it's fine when you have a bunch of different compressors which are the same trim (Garrett GT-series is almost like a big 56-trim party) but the HTA3076 only has .7mm more inducer and I'm picking a lighter (11 vs 7 blade) comp wheel which isn't partly design to be quiet. So far testimonies from people who have run each turbo come out very similar in response terms, except the HTA makes more power. I think you mentioned a while back someone is doing an EFR9180 RB somewhere along the line - is that right? And any results yet? The EFR9180 is still something of a unicorn.... quite interested to see how it performs.

Yeah, don't get too ahead of yourself - though for what it's worth I think the expectations seem pretty realistic. I suspect it should have some hilariously usable power Look forward to hearing driving impressions of it when you get it back! Look forward to hear (hopefully) how it goes tomorrow

Indeed - me too, it's quite a different setup to really anything else done on here and it may provide an interesting result. I have reservations about the 0.82a/r housing but there are ways it will potentially help it, too.

If you are going internally gated the Kandos tend to need some porting on the wastegate as well. As much as I'm not a fan of Stao going into threads about other turbo types and pushing is product, I actually suspect one of the Hypergear turbos might be a better option for the power level and setup you are looking at - if 260kw (or more) is your target. If you are looking at mid/low 200kw and you aren't afraid to do some porting, or have someone who can port the wastegate whole to closer match the flapper then the 16G would be a total winner.

Nice - will be interesting, it should still have a pretty nice delivery. I forget, what fuel will you be running?

Depending on the rest of the setup I think a Kando 16G would be awesome on an RB20 - though I think on stock manifolds, cams and pump gas you'd be doing well to hit 260rwkw (depending on the dyno) regardless of which of those turbos you chose. I am not as familiar with RB20s and what they like to make with given mods so not 100% sure on what to expect there, but I tend to think of them as needing a bit of work to get up to around 260rwkw. I wouldn't count on that power from a 16G but I do think it would be an awesome drive, if what a 16G makes isn't enough then I'd step up to a 20G - personally... not sold on the 18Gs being a worth while in between. You are aiming at the internally gated one, I assume? We have been playing with the idea of going with a bigger map sensor and trying to see if we can max out a Kando 16G on ethanol at some point - will update the Kando thread if we do.

Have played with a couple of RB20s with TD05H-16Gs - actual Mitsi ones, on RB20DETs and give the stock RB25 a SERIOUS run for it's money in terms of response but definitely suited to more power, and generally better suited to the RB20 really. They definitely work very well on them, depends on how much power you are after etc.

FP have released their own 6466TZ which presumably would be the equivalent, and has been discussed hypothetically recently in this thread. Hard to try and crystal ball how they would compare tbh, there are no results out for them yet - I don't even know if anyone has got one yet so it'd probably folly to say anything other than they should be similar, give or take some flow and spool. Sent from my GT-I9505 using Tapatalk

EFR7163 is a 60lb/min turbo with a 57mm inducer... I'd hope it will make more than 500crank ponies, especially as previously said - it's boost threshold seems worse than an HTA3076. I'll hold judgement until more info comes through, but at this stage - depending on targets, I'd say EFR6758 (shame about the housing options) to EFR7064 range would be what I'd be fitting to an RB20DET from the EFR range. 6865 - can you explain your turbo spec more, is it a TD06-20G or something? If so, I'd be guessing an EFR7064 would offer similar boost threshold with much better response and flow... be a good move up from a 20G

I definitely have ear to ground on results, and also all ready to give people bad ideas if the opportunity arises haha I would have succeeded in one case, but the person needs a T4 housing... argh

So which turbo is that?

Have seen some EFR7163 results now, they are more like what I would have expected in terms of boost threshold - unfortunately there seems to be no magic, they DO produce very very impressive power for a 71mm OD compressor but in dyno overlays with an HTA3076 the HTA actually edges it out... and interestingly, the EFR7163 edges the HTA for peak power. The transient response (like all EFRs) however is apparently awesome, but that will apply more to the full throttle/race type people and it won't help the low-down pull some might be after for RB20 road-ish cars. I guess there is no getting around the fact that it's a large trim compressor with a 57mm inducer

Do you have any of these results you can share? There are others who I respect the opinion of who have stated they have found no advantage going between twin wastegates and a single large one - I get people asking me for input but this is an area that while I have some theory on, I've not seen two separate otherwise equivalent setups using twin and single. A mate has an RB30 (aiming for nudging 600whp on E85) which we discussed turbos, manifolds, wastegates etc to great length without spending silly money and the combo settled on is a Airwerks S300SX 8375, .91a/r TS with a small tube twin scroll manifold and single large external wastegate. The manifold will have divided feeds - the separate banks will only mix flow in any way when the gate opens, will be interesting to see how it all ends up performing... I wouldn't have expected it to be too bad, even if not ideal?

Bugger - that sucks I hope luck improves from here on in!

Nice result :-) I am glad someone has posted one like this for a GT3582R on a RB25 on here, I have mentioned them being able to perform like this and been poo pood for it as though I haven't seen or experienced the same setups myself... Though one of the people who did was trying to advertise their own product I guess. Good to see they can actually work in Australia, too :-D Sent from my GT-I9505 using Tapatalk

Ah ok, as you say... Sounds like a boost control issue, not actually the turbo being unable to spool that well - sounds like it would be a complete animal with everything dialled in right to get the best from it :-) Sent from my GT-I9505 using Tapatalk

How long does it take to reach 14psi? That seems astoundingly laggy considering their reputation, bit very solid power! What is it like to drive response wise? Sent from my GT-I9505 using Tapatalk

Awesome! How is the new turbo? Sent from my GT-I9505 using Tapatalk

Bugger. I don't think being 0.82 will be a failure at all, especially given it will be run on pump gas - though not necessarily my first recommendation for someone aiming for the old GTRS type response territory. As mentioned by Scotty it will have its advantages in terms of not choking the motor, it may prove surprising in terms of power and really I still expect response to be pretty impressive... Just not quite as aggressive as it could have been. Let us know how you get on Sent from my GT-I9505 using Tapatalk

Cool, man - it's the internally gated Garrett housing? What boost control etc are you running? May need a good electronic setup to make it come on hard etc. Good luck

Hi sir, any progress? Keep us up to date, there are probably a few people quietly intrigued to see how this comes out