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Which turbo kit should I get for z20leh

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  • Which turbo kit should I get for z20leh

    Looking at getting a new turbo kit for my mk4 astra with a forged z20leh, I have a gt28761r .86 at the moment but the manifold is cracked

    I want to move up in power and am looking at getting either 3071 or 3076 but not sure which kit to go for, once I have chosen the turbo I then need to decide on manifold kit, its out of a full nortech manfiold kit or the courtney cast kit Courtenay Sport Garrett Upgrades 2.0 Turbo

    my car is an astra van and I use it daily and am looking at around 450bhp + really not sure what to go for can you guys help

    in the next few weeks once I have the kit am going to omex if that makes a difference

    also which spec 3071 or 3076 should I go for as I want it to spool as quick as possible but still produce as much power as possible, engine has klassen cams and klassen inlet

  • #2
    give courtney or another tuner a phone call and see what they could offer and suggest
    Remus turbo back , TX enlarged tophat, CDTI pipework, Pipecross XL Foam/Cone Filter, FMIC, Forge recirc valve, Forge actuator, Regal 3 bar map sensor, HRC fuel pump, Courts coolstat , GM Breather box, custom oil catch can, FK coil overs, Whteline RARB Gloss Black Corsa VXR Alloys, De badged and de-wiper at rear. HID headlights/LED sides. Custom carbon wrapping.

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    • #3
      I phoned courtney and I got no where to be honest the guy I spoke to didnt really sound like he new what he was on about and wasnt really very helpfull to be honest, its alot of money to spend so I want to do it right

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      • #4
        I'd speak to Nortech and RS tuning.

        Both these companies are involved in alot of big turbo conversions with the VXR scene at the minute

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        • #5
          why not send the turbo to owen developments or the like to have a billet compressor wheel fitted to your current turbo effectively giving you a GTX2867r which will have plenty of responce but should produce the figures of a 3071

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          • #6
            Nortech gtx30 kit if I had an Astra!
            sigpic

            Astra Vxr GENUINE AFLs for sale...
            http://www.vxronline.co.uk/forum/sho...ooler-for-sale

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            • #7
              [QUOTE=duffvxr;2482994]why not send the turbo to owen developments or the like to have a billet compressor wheel fitted to your current turbo effectively giving you a GTX2867r which will have plenty of responce but should produce the figures of a 3071[/QUOTe

              its a good ideal mate but my manifold is cracked and the downpipe is not the best to be honest so may as well go new and sell what I have

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              • #8
                Originally posted by Cleon View Post
                I phoned courtney and I got no where to be honest the guy I spoke to didnt really sound like he new what he was on about and wasnt really very helpfull to be honest, its alot of money to spend so I want to do it right
                i think you must of misunderstood what he was telling you then because there isnt many places as good as courts for messing with vauxhalls

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                • #9
                  GTX3071r .63 housing. Nortech tubular manifold. 870cc injectors, that'll make 450bhp with your cams ect.. And will be on full boost at about 3800-4000rpm

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                  • #10
                    Originally posted by britishbeef View Post
                    i think you must of misunderstood what he was telling you then because there isnt many places as good as courts for messing with vauxhalls
                    I phoned Courtenay a while ago. They couldn't help me either. They'd only sell me the cast manifold, which looks horrible. And didn't sell any GTX turbo's.

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                    • #11
                      Borg Warner

                      ASTRA MK4
                      build thread - http://www.vxronline.co.uk/forum/sho...46#post2094646

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                      • #12
                        well who ever I spoke to didnt help me at all just said they are good, I asked about the difference between the tubular setup and cast Ie pros and cons and I got, what do you mean there is no difference in performance between the two? cast is better end of

                        am not putting courts down pal, I have been told its John I need to speak to, but everytime I phone he is either busy or not in hence why I am asking on here for advice.

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                        • #13
                          Originally posted by VXR.Dan View Post
                          GTX3071r .63 housing. Nortech tubular manifold. 870cc injectors, that'll make 450bhp with your cams ect.. And will be on full boost at about 3800-4000rpm
                          Would you go with a v band setup or standard 4 bolt flange on both inlet and outlet

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                          • #14
                            Originally posted by Cleon View Post
                            Would you go with a v band setup or standard 4 bolt flange on both inlet and outlet
                            V band. It's the way forward

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                            • #15


                              My nortech mani. So much nicer than the courts cast crap. Courtenay have made the cast mani saying it will never crack like a tubular. Find me a nortech mani that's cracked on a vxr?

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