Can someone please tell me the difference? I've just bought a v-band adapter and need to source a turbo in the next few months, so any help would be appreciated.

gt28r is the smaller will give 220/230 with supporting mods the rs is the next sized turbo in the series and will get you to 240/260 the rsr is a hybrid which are made by taking a 28r and putting an rs wheel inducer and im not suer what else but you get spool of r and peak flo of rs near enough..i had an rsr done and it made 358bhp 316ftlbs

anyway there is not much difference between the rsr and the rs..if you use a .64 housing you will get it spooling up quicker and the power will be deliverd smoother and the powerband will be slightly wider...the .86 delivers it a bit more harshly a little bit later but will flo a bit more at top end..you can't buy an rsr as its not an official model you have to ask a turbo place to make it up for you so its the more expensive option..if you want the closest to original in terms of spool up and lag go for the r if you want bigger power the rs
hope that helps

you do realise you will need a lot of supporting mods i take it? it would probably be cheaper to buy a car already done than do one yourself..it just so happens i have one with an rs ,pro alloy fmic,custom exhaust and downpipe etc etc

Cheers for the info. I've got most of the supporting mods on the car already.

Evo6 fmic
Helix 6 paddle clutch
Uprated turbo actuator and Perrin EBV
Straight induction pipe
Supersprint exhaust

I'm going to keep my exhaust system, hence the v-band adapter. Could I fit a sports cat or do I need to decat it? Also, do I need an uprated fuel pump and fpr or will the standard ones do?

uprated fpr and fuel pump will be needed, you should get away with injecters...you will definately need a better exhaust and down pipe for a gt series the standard will make all you are doing a bit of a waste of time you might as well have bought a hybrid..i have a 3" stainless system and downpipe for just this type of application..for £350 which is less than a h and s downpipe ..you would be better selling yours and putting the rest in..it seems a little odd to buy all these mods then strangle them with a standard downpipe..you will not get the figures above with one ..anyway the rest looks good and i hope it goes well with the build..

You can keep the standard cat (restrictive), sports cat, or decat, it's up to you. A standard downpipe would be very restrictive on the larger turbos though.

You will need a 12V feed to the fuel pump, but whether you need to upgrade the fuel pump or change the FPR will depend on how it runs afterwards, and during the mapping session.

Sorry guys, this is confusing me. I thought the only reason you used a v-band adapter is if you didn't have a 3" down pipe. This means the sole purpose for the v-band is to fit the RS series turbo's to the standard down pipe. Is this correct or am I missing something?

Just to be clear, I'm not looking to break the power barrier here. I bought the car with these supporting mods on where the car is probably doing around 280-290bhp at the moment. Surely I could make around 330bhp with the standard down pipe and an rsr for the time being? Then getting another exhaust system in the future as all of these mods at once will bankrupt me!

its one of those things you have to walk into with your eyes open its an expensive thing to do you really needed to get all this information first then make your descisions you've gone about it the wrong way
anyway thats as maybe but to move forward the fuel pump is very likely needed everyone i know with gt series has this mod ..the fpr is a possible but wait in case you are lucky and dont need it
the vband is an adapter to use to connect the turbo to any down pipe from standard to blue flame to a custom one like mine, that fits to standard or hybrid turbo.
unless you have a 5 stud downpipe which bolts directly to the gt seriesturbo

i take it you are having the car mapped so its running safely?
if so you need to put the right exhaust on now or when you start changing things it will need redoing

as i said earlier the standard down pipe will work but totally defeats the object of fitting all those other mods as it is far too restrictive

it would have been fr better to have put a hybrid on if you were not prepared to change if not the exhaust definately the downpipe

you will need a vband adapter for the gt series turbos as they have a different turbine housing exit, a 5 bolt discharge, which doesnt mate up to the standard downpipe or aftermarket downpipes such as the blueflame

only if the aftermarket downpipe such as an h and s has a 5 stud adapter will it mate to the gt series turbine exit

also its not about figures it will not feel anywhere near as good coming on boost which to me is the point of putting the turbo on!
you have got a free flowing filter so you can get lots of air in a front mount to cool it properly then theres your straight induction etc
so your turbos getting as much cold air as it can use then on the other side when you need it to expel as much as possible as quickly as possible to make it all work properly... you cork it up..so what was the point?

i thought the point of putting it on was to feel the turbo do its thing ? it is for me anyway ..maybe i see things differently

am i working bloody hard here to sell this exhaust or what

Haha, mate, I am with you 100%, but as I said, I haven't got the cash for all the mods at the moment. Maybe I should just bite the bullit and get the proper exhaust system before I go ahead and buy the turbo. I'll have to think about it as I've just bought the v band adapter now!!

Choices choices...

you should definately make 330bhp with any of those turbos, especially an RS.
I made 381bhp with an RSR, but im forged and can run high boost, but it puts it into perspective.

I'm glad you said that mate. My mate(LobsterTC) ran a standard coupe with a GT28RSR and I couldn't believe how quick that was. My car has all the supporting mods appart from a 3" down pipe, so I am sure I'd be very happy with the power I get on my standard down pipe.

Like I said, I could always upgrade.

it'll work out cheaper in the long term to buy the right bits as and when you can afford them

If you buy bits and fit them, then get it mapped, then buy better bits you'll make a loss on the original bits and have to pay for mapping again.

Slow and steady might not be as glamorous, but.....

remember the story about the tortoise and the hare....


Paul

See that's the problem... I've just changed my mind about 17 times in the last hour. lol

mate trust me its costly, i had one guy the other day call me the forum hoover! because im hoovering up all the parts for sale lol

i would honestly say if your looking for 300+bhp then a gt28rs will see you there and more with a flea map at the end. if you do what some do and buy a hybrid superspool blah blah snap your neck turbo you would see 350bhp but not much more over this

you will need other bits like fpr, fuel mod, de-cat, a flea map,fmic, ect

you basicly need to speak to flea if you what a plan out you spec

oh so my turbo is a gt28rsr lol

So yours ISN'T a GT28RSR then?? That's what he told me mate.

as i said my rsr made 358 on standards..jamie made 340 from a r in the car i have on my drive
there is a 28r for sale for 500 or less on here now that will give you your 330 and will be the quickest spooler but none will work properly without a good down pipe you cant get past that..
you have to have one at some point before you map your car or you will be mapping it more than once which is wasting the money you could have spent on the pipe..it will do more than just restrict flow if you get the rs which is capable of 360+ it would i imagine create more back pressure than is healthy and more heat ..now i may be wrong on that but it would seem likely..
i just cant get my head around all the modding to cork it all up as i said before the feeling when these turbos come on boost is what its all about so why would you stifle it rather than maximise it ? it just really does not make sense to me

why not just buy the bits as and when they come up second hand like i have done

i am building a big power one and the turbo/exhaust/sip/filter/intercooler etc have all been sourced second hand

buy them as and when then do it when you have all the bits

back to this exhaust i am selling they do not come up that often full 3" with 3" downpipe stainless systems are rare even rarer at £350 if i was you i would get it while its going..genuinely

My RS makes 320bhp @ 1.35bar on standard downpipe. This is pretty strong and really adequate, but slowly I am being drawn towards a larger downpipe to relaease more power.

I have decided to wait and get the right down pipe after all. Like has been said, why waste all my good mods and restrict power when I can make some pretty good figures!!

its not just the figures its the kick from the turbo that gets toned down..
mark if you put my system on or any like it you will make 30bhp more, more ftlbs, and you will definately be pleased with the effect coming on boost pus itll be better at the top

I'm still waiting for the pics mate.