22 replies to this topic

[Bumblebee]

Looks like I'm going to need a new turbo soon (hopefully it holds out until next year) has anyone got any knowledge on the Aet turbo? Just weighing up my options ATM ,is there much benefit from the Aet compared to the vxr unit? pro and cons etc? Thanks in advance Aimy

[rob999]

How much power do you want ultimately? The VXR unit should be sufficient for most people....

[Bumblebee]

How much power do you want ultimately? The VXR unit should be sufficient for most people....

Yeah I'm sure the vxr unit is ok for my needs just looking at other options really and would like some more info on the Aet? I'm quite happy at stage 3 ATM but possibly stage 4 next year. Just wondered how they both compare?

[siztenboots]

just send your turbo to turbo dynamics and get it serviced , it will come back better than new

[Nev]

What AET turbo are you talking about, I know they have at least 2 different specs. You need to be specific. They offer a K04 with cut back blades and a mildly enlarged/die ground manifold or a K06 turbine option. The K06 option would yield a handfull more BHP probably, though I don't think they make it in carbon-fibre so you probably won't like it.

Edited by Nev, 12 July 2012 - 08:17 AM.

[spuk87]

Think DuncanVXR used to run an Aet hybrid turbo that was pretty tidy, ask him for his advice on it.

[coople]

Aimy can you please list your current engine tuning mods and what bhp/trq you are currently at please. I have bought a charge cooler and vxr turbo which has AET uprated bearings to go on top off my currently stage 2 with miltek car just need the injectors and fit it all now and should be upto stage 4 myself after some MMG map tweaking. I also have sachs clutch lightened fly wheel mmg underdrive kit and courtney intake pipes. I want to hit the 300bhp number.

[Dave E]

Long story short. I also sent my vxr unit to AET for uprated bearings and seals, cost around £450, lasted 180miles. After a lot of discussion and a little persuasion from the garage who fitted it they reluctantly agreed to fix it out of the goodness of their own heart because although they couldn't tell us definitively why it had failed they KNEW it wasn’t anything they had done. Got it back on, lasted 120 miles, exactly the same symptoms. At this point I went to Courtney’s to have one of their units with uprated seals and bearings, no problems yet. AET report came back again as inconclusive as to why it had failed but again it definitely wasn’t their fault, they refused to fix it without me coughing up more money so we asked for it back. That took more than six months. It's now an expensive pile of scrap. I agree that I may have just been unlucky but that doesn't excuse the way they dealt with the problem and what good is a warrantee if the company won't honour it? They are the facts, if you want to gamble your money with them, then I hope you have more luck that me.

[Bumblebee]

Aimy can you please list your current engine tuning mods and what bhp/trq you are currently at please. I have bought a charge cooler and vxr turbo which has AET uprated bearings to go on top off my currently stage 2 with miltek car just need the injectors and fit it all now and should be upto stage 4 myself after some MMG map tweaking. I also have sachs clutch lightened fly wheel mmg underdrive kit and courtney intake pipes. I want to hit the 300bhp number.

Not sure on power yet until I put it on a dyno but I'm running stage 3 with
Milltek exhaust+100 cell sports cat
Lightened and balanced flywheel
Pro alloy chargecooler
Enlarged pipe work tophat etc
6 puk paddle clutch
Under drive pully kit
Oil catch tank
Pro alloy triple pass rad
A few shiny things in the engine bay and probably a few bits that I've missed

Edited by Aimy, 12 July 2012 - 12:47 PM.

[jonnyboy]

They are based just near me in Normanton if you want a chat with them. They have a dyno cell now as well. I used to get a few bits off them but not had any work done there.

[Glambee]

At this point I went to Courtney’s to have one of their units with uprated seals and bearings, no problems yet.

While reading the specs on Courtenay's website, I had the impression it was exactly the same as the AET unit... Aren't Courtenay sourcing from AET the unit they sell?

[Dave E]

No they don't, Turbo Technics do their stuff. The spec may sound similar but that doesn't guarantee quality control on parts and workmanship and as I've said their warrantee doesn't seem to be worth much.

As previously stated, I may just have been unlucky and you may not have any trouble but I wouldn't recommend them to anyone.

[Bumblebee]

Does anyone no if there's any plus points over the vxr turbo?

[Dave E]

Generally speaking the main advantage to the reprofiled version is it'll hold boost at higher rpm, over 6k. Aimy what exactly are you trying to achieve with your mods. What your describing will make the car faster in a straight line but the payoff is it'll be far trickier to control due to the on/power delivery of a stage4. My stage 2ish at 270hp was way easier to drive than it is now and not much slower, in fact I've only really noticed the difference on track. If you really want the extra power and a nice power delivery your best bet is a small garrett. When I was at Courtenay's I saw the torque graph of a g23 I think and the delivery was very linear and similar to a supercharger. Think it was about 320bhp.

[coople]

If you get the AET turbo with cut back exhaust blades then it will flow more at the top end due to the decreased back pressure. However this will also mean the turbo will be slightly slower to spool up so maybe slightly more laggy but I doubt by much.

[VXT Tim]

Do garrett do a g23?

[Dave E]

Not 100% sure, it was a graph Mark showed me but I don't know how old it was, it might well have been an old model, I know it wasn't a g25, he said it was smaller.

Edited by Dave E, 13 July 2012 - 10:43 AM.

[VXT Tim]

There is the g22 but i'm sure that's out of puff sub 300bhp.

[Duncan VXR]

I have used 2 AET spec k06/04 turbos and fitted a few others over the years and built one myself back in the day when Grant still worked their. I had 1 issue with one unit but was due to cc split and too much tracking which caused a funcky issue. Lot of work goes into the cold side but tbh if I did one again I would cut the oe intake off and do it a different way Boosts like a VXR turbo but has a bit more midrange a nice 20bhp more top end Great hybrid option for 325bhp with the right mods to support Think I still have my billet cold side compressor wheel which I menaged to bend - even Andy was impressed how I broke it DG

[John Boy]

Aimy, I have had a similar experiance to Dave E with an uprated VXR unit. Seems like it wasnt an isolated case. PM me if you would like details