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I've got one of these to go on my new turbo conversion. No cat + Unsilenced centre section = :)

Yes mate, the solenoid would open at 1.2 bar and obviously because the 1.2 bar exceeds 1bar it will open the actuator immediately. However the larger actuator you fit the less flexibility you have with your boost controller. Once you fit a 1 bar actuator the lowest boost setting will be 1 bar...

Wrong lines mate. There is a solenoid placed between a suitable pressure source (comp housing on mine and yours) and it simply remains closed untill the boost pressure taken at the reference point (inlet manifold) hits the preset level. Once it reaches this point the solenoid opens allowing...

Damn, it was supposed to read "this is most commonly percieved as boost creep, however boost creep is at the higher end of boost control, when the wastegate is not big enough to bypass enough exhaust gas away from the turbine. This causes the boost to go up even when the wategate is fully...

Here you go Darren a quick run down on how actuators work. As you know the actuator is connected to a vacuum line that runs from your inlet manifold, inside it has a diaphagm which compresses a pre tensioned spring. If the spring is 10psi (and pretensioned correctly) it will take 10psi of...

Sorry mate thought you worked at Ktec now. But Darren is going back for some more mapping on the 25th, so it will be interesting to see what conclusions are drawn from the day. In all fairness me and you've have had this conversion a few times now so think we'll just have to disagree on where...

It's not the timing mate, you'll see this when you get Darren back on the 25th

All the GT28R's I've seen in stock form have a .60 comp housing. For ref http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT25/GT2560R_466541_4.htm

Yeah, or PM me. Please don't say it's the ignition timing as that has nothing to do with boost drop that were all experiencing. As you've said it would put out approx 280hp at 1 bar but the problem is everyone seems to have 12 psi at WOT and high rpm

With a modified t3 housing that drops the AR from .60 to .42

Well why are none of the recent conversions getting anywhere near it then?

On what cars have you seen this turbo fitted?

Best give those supercharger conversions with there low torque a miss then ;)

Mine have'nt seen any kerbs but the ingrained brake dust is horrendous, no amount of cleaning has helped might get the refurbed this year

Scott will be well chuffed when he see's this as when he bought my kit I gave him a conservative estimate of 210, but looks like theres plenty of scope for more power. Just a quick one though, what bore exhaust are you running? and have you ditched the cat?

Got to be happy with that? what torque did you get? I can't believe how well the mapping has come along from when I first had mine done @205.9bhp

Wonder if it was the same horses mouth that told me I'd get 300bhp with similar torque figures? I've just been on ktecs web page and it now actually says with the stage 2 kit you'll be "running arounnd 300bhp" must have revised it, I wonder if they'd give you your money back if you couldn't get...

Carefull modifications, thats an interesting way to say a different turbo's needed

Yes mate it was aimed at you :) and seemed a justifiable comment if your gonna make sweeping GENERAL comments in a turbo thread, no hard feelings though. Regardless of what tuning kit people choose they really need to do a lot of digging around to find out what the kits are really like...

Yeah them turbos go from like 20bhp to 500bhp in like 300rpm, should be made illegal there that dangerous. LOL

Mine will look like this soon when I send my front dampers of for refurb.

As you can see from my graph below the turbo comes on boost with such ferocity that it literally rips the steering wheel from my hands and sends me into a wheel spinning frenzy across the road into the nearest ditch. Apologies for my wonky scanning :) For those who don't know what...

Right lets be honest here,The last 12 months has easily been the best for extreme tuned clios with more turbos/sc/itbs being carried out than ever. However just because a company sells a certain product/conversion doesn't necessary mean that it's the best way to do things. At the end of the...

To be honest everyone is supercharger mad at the moment, and not so long ago everyone was talking about 400bhp supercharger kits, however it's all gone a bit quiet on that front now and I'll be honest it'll never happen. The only person to exceed 300 bhp was RStuning and there was an...

Is this because you have extensive knowledge and experience with both turbos and superchargers?

I'll check my graphs but I'm pretty sure that they just give a boost measurement that doesn't include atmospherc pressure

Darren when you say that the top line is boost on the second graph are you sure? as that would indicate 1.7 bar about 22psi?

Whilst I'm aware that the cheap ebay speciall stuff is awfull, I've heard nothing but good reports about the DEI titanium turbo blanket and exhaust wrap. How much is it for ceramic coating? as I might be interested in that as the turbo blankets are quite bulky and space is tight enoungh already.

Deffo no large penny washer there.

Hmmm i'm actually seriously considering this as the under bonnet temps with the turbo are suprisingly high.