"I'm sure the big turbo would soon suck it up on the motorway though!" That's absolutely correct. You wouldn't believe how quickly a Polo gti with BT goes from 120km/h to 240km/h on the highway...however around town in heavy traffic it pretty much is useless.

After 2.5yrs of ownership I'm still on the standard map, and still loving it.

Same here, my torque graph is pretty sweet with the standard map so if I did anything to mine it would just be to improve the handling. Despite everyone and their grandmother telling me I should have remapped it within days of buying it!

So the oil issue you had Lee was nothing to do with the turbo? did that occur before fitting the turbo then?

The only problem is as far as i can tell with the IHI setup is the turbo cannot be rebuilt, shame as i have one sat here needing a rebuild so its useless!!

Progressive mapping is the right way, who did your map? I take it you could drive the car 'sensibly' too without it being a pain to drive?

What kind of fuel consumption did you get of of yours when driving sensibly?

No, oil issue was the engine not the turbo. Map was done by Jabba, and very smooth, but its the result of the sum of the parts. Car was very easy to drive, it would accelerate better than a stock motor in 5th from 25 mph and no silly shove in the back when the turbo really got going. As for fuel consumption, 35 mpg +, or less than 10 on a track day!

cheers lee, thats what i was looking for, a sensible upgrade that can still give decent mpg 'if' driven sensibly!

Of course you are right the engine was a good base to start with, however i am still trying to think positive that a well looked after auq engine could handle 300horses, does anyone disagree?

octimark,how much were you thinking for your engine? has anyone heard of cr turbos near christchurch,i was thinking about them for a hybrid turbo,just wondering if you guys know anything about them.

p.s there will be a big turbo kit coming to the market very soon wich will be your 300+ bhp with k03s lag ( not alot) awaiting for kit to go onto a rhd engine to be tested big company aswell and will be half the price of any kit in the uk

Any news on this yet??

Get a GS Racing GSR HX30: http://www.g-s-racing.com/products.html for £450.

It's a hybrid Holset HX30.

If you're worried about it being too big you can get much smaller Holset turbos (HX25/27 for example). Im sure GSR will do hybrid versions of those too.

I am a bit biased though! If you want any info about the Holsets let me know.....

How comes they are so cheap?

bump

Ahh sorry didn't see that! Dunno mate, the price seems about right to me. You'd have to speak to GSR to find out any more info.

Perhaps the Holsets are cheaper to buy in the first place, as they are aimed at the commercial truck market, rather than the aftermarket tuning industry.

Holset are incredibly strict on counterfeiting for safety reasons, and I know for a fact that GSR use genuine turbos. So it's not that.

Just seems like sensible pricing to me.

Get one!

update post, tried contacting gsr several times, no response.....

Anyone else had any luck?

There are two version of the Garret GT2860RS

The orginal "Disco Potato", which was a bit laggy, which is why the 2nd Gen GT2860-5RS was made. It has been re-engineered to allow for better gas flow to removing the lag.

It has been specifically designed for smaller displacement engines, and Garret class it as medium turbo, not a big turbo.

Turbos like the Garret GT2871R are closer to the GT30xx units then they are the GT2860RS units, and really meant for larger displacement engines (2500 cc + (5+ cyclinders)).

I beleieve you can buy kits to convert the GT2871R internals to GT30xx spec. The turbo housing on the GT2860-5RS is much smaller.

By the end of the week, I hoping my GT2860-5RS/JBS 1.9 will be up and running

Check the other forums, where there are many more people who've got experrience of this topic.

Edited 18 September, 201015 yr by snow_muncher

not really anything to do with the holsett turbo though is it

not really anything to do with the holsett turbo though is it

Don't think the thread is restricted to holsett stuff, just trying to give out some info to aid vrsmark's research.

ps

particularly since there seems to more opinion than fact in this thread

Edited 18 September, 201015 yr by snow_muncher

nah, the gt2860rs is old hat, wouldnt touch it with a barge pole....

Its all about holsett now..hence my thread resurgence...you are just detracting with your uber laggy turbo

nah, the gt2860rs is old hat, wouldnt touch it with a barge pole....

Its all about holsett now..hence my thread resurgence...you are just detracting with your uber laggy turbo

So a Holsett will be on boost by sub-2,000rpm ?

Where the evidence ?

lol sounds good

so they have improved the old gt28 as it was really laggy on small engines but they knew it would be as it caterd for such a wide range of engine sizes proof was in the pudding with andyrews 1.9 gt28 car

you should be hitting some very nice figures with that snow muncher will be fun on the snow ring lol

those holsett turbo seem to be very well priced compared to the ever increasing prices of garret

Edited 18 September, 201015 yr by westallc

you know im joking, i like th

e gt2860rs really

would be nice to think so though, not loads of info though,

http://forums.vwvortex.com/showthread.php?3442713-Holset-HX30-Compressor-Map&highlight=hx30

anti lag

http://www.e30tech.com/forum/showthread.php?t=49999&highlight=hx30

i love the car this hx30 is on

http://www.e30tech.com/forum/showthread.php?t=41315&highlight=hx30

Edited 18 September, 201015 yr by Oet

Funnily enough, was talking about meth/pre-detonation(anti-lag)/nitrous with my tuner the other day ...

Owens Garret GT2860-5RS info

Edited 18 September, 201015 yr by snow_muncher

i think that is from a stock hx30 so to speak, and not they hybrid that gs racing sell, which is meant to match and exceed the gt2860rs and the vf34 from the little info i can find.

Havent seen a graph of the hx30 gs racing hybrid anywhere.

Recon that HX30 is perhaps more akin to a GT2871R with A/R.60 ? ...

What about one of the smaller Holsetts ? HX25, HX27 ...

Haven't read all this article "The World of Holset Turbo Charging" yet ...

There are lots of smaller Garrets too.

no, the hybrid hx30 is akin to the gt280rs from everything i have read.

Stock non hybrid hx30 (as in the graph above) is akin to 2871r perhaps or even a bigger garrett, i havent seen enough info to compare.

Considering the price of a stock hx30 vs a stock gt2871r, i know which i would try!

Prob is with garrett is the price, holsett should be filling a hole in the market...

Edited 18 September, 201015 yr by Oet

the pressure values are much higher in the holsett too.

no, the hybrid hx30 is akin to the gt280rs from everything i have read.

Stock non hybrid hx30 (as in the graph above) is akin to 2871r perhaps or even a bigger garrett, i havent seen enough info to compare.

Considering the price of a stock hx30 vs a stock gt2871r, i know which i would try!

Prob is with garrett is the price, holsett should be filling a hole in the market...

Presumably a hybrid HX30 is a HX30 housing with different internal.

Can't help thinking this would be like trying to make a hybrid GT2871R - and trying make it behave like a smaller GT2860-5RS, as oppose to a bigger GT30 turbo.

You've got that old GT2871R sitting there ... see if you can GT2860-5RS internals fitted

Holsett may be cheaper, but Garrets get bolted onto aero-engines, that implies serious quality and reliability - you're not just paying for the name ( well ok a little bit for the name maybe ).

yes thats exactly what i can do to the 2871r bits that i have, turn them into a 2860rs, spoke to garrett bout this already albeit at cost of buying new chra etc.

guess its no different with the hx30

The garrett route is now my backup plan.

I know what you mean about the reliability, but holsett come from industrial backgrounds and their reliabilty and performance in their sector is meant to be second to none. They are meant to be bombproof and built to last huge miles.

Ask Bodge, he knows a bit about these (come on bodge post please)

Just looking at figures the holsett route looks a lot cheaper especially taking into account the low cost of t3 manifolds even equal length ones as long as you go cast (which i prob will),