Anyone running GTB2260?

[cocadave]

Just wanted to compare figures if anyone has done it on here?

Had mine done a few weeks back and I love it but to be honest i was a little dissapointed with the rolling road figures, Don't get me wrong it goes like a rocket and has moved the car up into the next level thats for sure but i wanted to see what other people were managing from their setups.

A few youtube vids etc. are claiming 10-15 BHP more than mine managed however mine was tuned in 25 degree heat...

By the way my figure was 258

 

[cocadave]

Monthly Bump...

 

[Dan FR]

Build info / spec? standard cam? any head work? Which injectors? How much smoke do you have now? 258 isn't a bad figure at all if on the original cam and headwork.

RR figures can't be compared, the difference culd easily be in Dyno variances, Dynos can be manipulated but if operated correctly should correct for atmospheric conditions.

 

[cocadave]

Spec is:
S3 intercooler
Darkside intercooler pipe kit
Race injectors with firad 80% nozzles
Standard hardened cam but not original
And obviously the turbo with a darkside stainless mani

It chucks a fair bit of smoke out when it's spooling at lower revs and cleans up a little higher up the rev range but if you're booting it down the motorway at high speeds you can still see the smoke quite far away...

I'm impressed with the performance just a little let down by the power figure, if the turbo's capable of over 300 and so are the injectors why isn't it pushing more, I wasn't at the tuners whilst it was being mapped so I only have their word and the printout but I'm assuming that could have been manipulated...they said it was only running 200bhp when I gave them the car although it was previously mapped with hybrid 150 turbo running 220 and when I changed the turbo to the GTB it was even faster

I had a power run and a chat after with a guy in a Golf running a T4 turbo claiming 230bhp and it was neck and neck with maybe him pulling away from me slightly, just makes me wonder...

 

[1986brandon1]

Was the mapping done at darkside also?
I am seriously tempted to go down the GTB route, but the other day a mk2 Leon with a GTB1756 came up for sale, with a printout of only 223 hp after spending 4k at darkside. Went to have a look and test drive with all intentions of buying, but i really wasnt impressed by it. Smoked like mad, pulled ok but only until about 4k max. My MK1 mapped Leon running 192hp feels quicker.

 

[cocadave]

Yes it was mapped at Darkside, from what I've read people are saying that 260 is an "OK" figure but I expected more, especially considering how much money I paid out...
I am happy though as its put the car into the next level of power and surprises a lot of other drivers, it probably is a little bit too smokey but I have a straight through exhaust so everything gets dumped out the end, I have a mate who's wanting more from his Bora and is in touch with a guy called x-man turbo on Facebook and eBay, apparently really good reviews and almost half the price of Darkside, with Darkside you are simply paying for their name and previous design and fabrications which other companies have now copied and are charging a lot less for... My mate has ordered a hybrid turbo based on standard gt1749 that is allegedly good for 250 bhp at £600, considering mine cost over £2000 Id probably sacrifice £1400 for 10bhp less.

 

[Dan FR]

The car will only make what the hardware is capable of. The turbo could make more power on an engine that is capable of flowing more. With a standard cam and standard headwork you will not get much more without pushing the engine/turbo dangerously hard. The head is essentially choking the engine.

Power requires airflow as you have all the fuel you need with the firads, the limiting factor of the flow is through the head in your case. A cam would help this a little but ultimately you need headwork too if you really want to chase bigger numbers.

a GT1749 hybrid at 250 hp? Doesn't sound realistic to me but need more details than that. Also read that most of the turbos from X Man require you to set up the VNT and Stop Screw yourself which is further hassle.

Darkside are not cheap but offer an 'all in' service that anyone can go there with a wallet full of cash and come out with X bhp. It will always be cheaper but trickier to piece it all together yourself. Darkside probably won't map it if you do though, they don't like tuning car that have other people's turbo & manifolds on.

 

[cocadave]

The car will only make what the hardware is capable of. The turbo could make more power on an engine that is capable of flowing more. With a standard cam and standard headwork you will not get much more without pushing the engine/turbo dangerously hard. The head is essentially choking the engine.

Power requires airflow as you have all the fuel you need with the firads, the limiting factor of the flow is through the head in your case. A cam would help this a little but ultimately you need headwork too if you really want to chase bigger numbers.

a GT1749 hybrid at 250 hp? Doesn't sound realistic to me but need more details than that. Also read that most of the turbos from X Man require you to set up the VNT and Stop Screw yourself which is further hassle.

Darkside are not cheap but offer an 'all in' service that anyone can go there with a wallet full of cash and come out with X bhp. It will always be cheaper but trickier to piece it all together yourself. Darkside probably won't map it if you do though, they don't like tuning car that have other people's turbo & manifolds on.

Yes I know what you're saying about the head I was originally advised to get to 270 ish I needed what I bought, to get to 290 ish I would need a cam... It turns out that u won't get anywhere near them figures without major head work but that's something I'm looking into.
The xman turbo is this one https://m.facebook.com/story.php?story_fbid=433561450134590&id=264464090377661
Not 100% its based on gr1749 it was my mate who's ordered one who told me it was.

Any advice on companies to use for the head work?

 

[Dan FR]

You're only 10 hp away from the 270 which isn't much - every setup is different and some just make more than others. Ambient temp you originally mention shouldnt matter as most Dynos compensate with DIN correction.

Peak numbers aren't the whole story anyway. The spread of power/torque (area under the curve), the delivery (in terms of traction) matter far more.

Advising that you will get 270hp and then 290hp with a cam just isn't realistic at all

Not sure who's best for PD headwork - never took my old TDI that far. Have a read on other forums where they have big power TDI builds, not seen any on here

 

[1986brandon1]

The Xman turbos seem a really good way to go, as Dan mentioned they need stop screw and VNT adjustment but your saving mega money over Darkside prices.

He can supply a hybrid for 450 which recently pulled 232hp on a Ibiza pd160 so may go down that route just for ease of bolt on upgrade and for £450ish its a bargain.

One thing that puts me off Darkside is that every car seems to smoke far too much. Seen some Fabias pulling 250-260 hp on a GTB1756 and 2260 turbo and running as clean as a stock car would, but not Darkside tuned.

Anyway, rr figures are for bragging about its how it drives that means most. And if it feels much quicker thats the main thing.

 

[cocadave]

The Xman turbos seem a really good way to go, as Dan mentioned they need stop screw and VNT adjustment but your saving mega money over Darkside prices.

He can supply a hybrid for 450 which recently pulled 232hp on a Ibiza pd160 so may go down that route just for ease of bolt on upgrade and for £450ish its a bargain.

One thing that puts me off Darkside is that every car seems to smoke far too much. Seen some Fabias pulling 250-260 hp on a GTB1756 and 2260 turbo and running as clean as a stock car would, but not Darkside tuned.

Anyway, rr figures are for bragging about its how it drives that means most. And if it feels much quicker thats the main thing.

Yes and if it wasn't for the fact I paid so much for the tuning and I'd have to pay it again I would get a different map put on just to see...