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Most of you will know of the problems I have been having with turbos this last few months since I got my engine swapped

 

Having decided to replace with new upgraded turbos, everything is now here and ready for fitting..... special thanks to 111mattin111 for the second hand 5-bolt downpipes at a nice price ;0

 

So here are my GTX2860R turbos straight from the US of A

 

I'm not an expert on these things, but Steve at Siverline who sourced them for me tells me that the impeller half of the housing is a special custom one quite like the 'stock' Garretts so they fit straight onto the car without any adaptation. This is an option that is available in the US (but not over here apparently) which also means the impeller housing is slightly smaller than normal for the GTX2860, so these turbos will spool faster than normal at the expense of a little top end horsepower - which is more suited to a fast road car and are also easier to fit.

 

I'm looking forward to getting them fitted and having the car mapped

 

Rich

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Edited by dicky96

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nice what was the cost inc shipping and tax

  • Author

or I may have it back to front - it could be the compressor housing which is a special custom one that fits direct to the car without modification!

 

I made a downpayment which covered the expected cost with shipping/tax - but forgot to ask Steve what the final price was. Will ask (doh!) and report back

 

It's approx £2000 - £2500

Edited by dicky96
added approx price

2k so are thay a well known make model do thay have a good review

2k so are thay a well known make model do thay have a good review

 

Yeah they are garret, it's a gtx28 ie a Roller bearing larger version of the t25 fitted to our cars. If I'm right it's a gtx28 housing and exhaust housing with a machined out gt25 front housing. There's a damn good set of tubs.

Edited by Stephen

what bhp can thay handle or rated at

  • Author
Yeah they are garret, it's a gtx28 ie a Roller bearing larger version of the t25 fitted to our cars. If I'm right it's a gtx28 housing and exhaust housing with a machined out gt25 front housing. There's a damn good set of tubs.

 

Yes that sounds just like what Steve was trying to explain to me. :wink:

 

Also I understand the GTX have turbine blades shaped like a 'jet engine' so they can feed a much higher volume of air than a GT of the same size. I'm led to believe these are pretty new on the market and there are not so many (if any?) Zeds with these fitted over here at the moment in this configuration with the machined out front housing which Steve was explaining will make the tubs spool very fast at the expense of a llittle raw horsepower. No doubt he could add some more info to this thread if he's around

Pretty sure they are gt525 with the correct sized exhaust housing. A gt525 is a t28 core with machined t25 compressor/exhaust housings. These are a rolling bearing version of the jwt sport 500. Full spec is on z1s website guys.

They look a lot different to my gt28rs. Look forward to hearing how they perform. Have you forged your engine or have any supporting mods for these?

Pretty sure they are gt525 with the correct sized exhaust housing. A gt525 is a t28 core with machined t25 compressor/exhaust housings. These are a rolling bearing version of the jwt sport 500. Full spec is on z1s website guys.

 

cheers matey

They look a lot different to my gt28rs. Look forward to hearing how they perform. Have you forged your engine or have any supporting mods for these?

 

You've got gt2860rs haven't you ie disco potato? The gtx range are a next step on from that design. Supposedly bloody good tubs.

If I remember the blurb they are smaller than true gt28s, larger air processing power smaller turbine. Something of that type.

  • Author

 

 

Yep they are those and should be good for 700bhp and very fast spoolers

 

Re supporting mods, as I mentioned on a previous thread Iam, if you like, gonna run a bit of an experiment here

 

Mainly due to finances, these are going on my totally stock engine/SMICs though I do have an aftermarket decat 2.5" SS exhaust and HKS EVC

 

Then I will get it mapped/dyno's

 

phase 2 - will upgrade the intake and exhaust system and remap

 

phase 3 - Steve already has my spare engine for rebuild and then I will upgrade the injectors at the same time and go for a final map

 

That should give some useful data for other owners...... though do expect it to take me a year or so to complete the project, it will not be overnight. Of course I will keep a build thread of the progress

 

Rich

Edited by dicky96
speeling

i think mark derby has the same ones, very good turbos. be interesting to the see the results through the different phases.

 

They are essentially the gt28rs but with a billet compresser wheel for less weights and a more modern design

were did you order the turbos from

  • Author

IIRC Markderby has the GTX2863's which are the next size up. I don't know if he has the machined out T25 front housings on his though

 

@Dan

Steve from Silverline racing got them for me from the USA

  • Author
Look great Rich, glad you are getting there with your engine (again)

 

Yeah I know Ian... call me a glutton for punishment LOL

 

Rich

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