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PostPosted: Mon Dec 12, 2011 4:55 pm 
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1360cc
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I read through a few pages. Might be easier to ask! What turbo are you running on this currently/ongoing?

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PostPosted: Fri Dec 16, 2011 2:49 pm 
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Hi Mate,

Its a Garrett dual BB 2560 cartridge with a skyline GTR rear housing and different front housing.

If I was to do it all again? Smaller - it spools early enough and is great but spools long and flat not really aggressivly - when I had the high flowed Garrett T2 on it, it spooled SO much faster (smaller turbo) but choked at around 5500-6500 - now itll hit 7500 and still keep going

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PostPosted: Fri Dec 16, 2011 3:20 pm 
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What would you put on a 1275? Low end torque is more what I'd be looking for.

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PostPosted: Tue Dec 20, 2011 8:58 pm 
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poeee wrote:
What would you put on a 1275? Low end torque is more what I'd be looking for.


supercharger :D


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PostPosted: Tue Dec 20, 2011 10:24 pm 
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998cc
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Location: Quakers Hill - Only the Hills
Any updates Pete?

I am not happy with the GT2554R so I think I will start looking for a GT2560R.

If you need a hand with anything let me know as I got a few weeks off.

Grant

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PostPosted: Wed Dec 21, 2011 6:02 am 
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848cc
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2560 on an 1100, really??


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PostPosted: Wed Dec 21, 2011 9:16 am 
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mini13 wrote:
2560 on an 1100, really??


Grants is a 1360 or so - and had a lot of years of development...


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PostPosted: Wed Dec 21, 2011 3:47 pm 
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Boostedmini wrote:
Any updates Pete?

I am not happy with the GT2554R so I think I will start looking for a GT2560R.

If you need a hand with anything let me know as I got a few weeks off.

Grant


grant, im pretty sure you lag is down to the compression , and peters is slightly laggier than my 2554r . i have a megajolt datalog for mine somewhere ill try find for you . I was spiking to around 17psi by 5000rpm

and peter, same as grant im happy to help

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PostPosted: Wed Dec 21, 2011 4:06 pm 
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time rpm load (kPa)

00:41.4 2071 89
00:41.6 2131 88
00:41.8 2205 85
00:42.2 2339 84
00:42.4 2410 83
00:42.6 2508 81
00:42.9 2673 79
00:43.2 2745 78
00:43.4 2863 84
00:43.6 2986 91
00:43.9 3185 97
00:44.1 3346 99
00:44.4 3511 102
00:44.7 3733 107
00:44.9 3888 110
00:45.1 4040 115
00:45.3 4282 121
00:45.7 4547 135
00:45.9 4770 149
00:46.1 4961 166
00:46.4 5302 186 (13psi)
00:46.6 6119 209 (16psi)
00:46.9 6978 199
00:47.2 7220 64

thats the only one i can find but full boost by 5500 no worries

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PostPosted: Wed Dec 21, 2011 5:20 pm 
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Location: Lake Macquarie NSW
simon k wrote:
mini13 wrote:
2560 on an 1100, really??


Grants is a 1360 or so - and had a lot of years of development...


I think Grant went back to 1293 or so Simon?

Originally was a 1380 I think, but too many issues.

Grant, what's wrong with your current Turbo?

Cheers

Graham 8)

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PostPosted: Wed Dec 21, 2011 6:28 pm 
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simon k wrote:
poeee wrote:
What would you put on a 1275? Low end torque is more what I'd be looking for.


supercharger :D


Could I still run Rover aircon?

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PostPosted: Wed Dec 21, 2011 8:11 pm 
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998cc
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I should start a new thread on this but thanks Pete.....you got one going lol

I am happy with the driving and everything now, i sorted that out with a smaller A/R exh housing and its driving great but it is not making the power it used to, this is because the 54R produces the air pressure but not the volume to produce big HP. i was speaking to GCG turbo’s on this and their tech helpdesk guy said to get the equivalent power with the 54R I will need to run up to 25psi to get the same volume of air that around 15psi will give me from my old T25 and to the GT2560.

This is why looking at the 54R it has the large A/R in and exh housings.

I will be putting it back on a dyno in the new year to see exactly what it is producing and make my mind up from there.

As for engine size, i have used a few different over the years, from 1412 stoker to the current +20 thou

Grant

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PostPosted: Thu Dec 22, 2011 1:01 am 
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848cc
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I actually meant Pristic (pete?) I thought he was running a small bore?

My turbo of choice (compressor wise) would be a GT2559, the map looks much better suited to a mini lump, and will be much happier above 20psi.

I'm actually running a GT2559v (variable vane) woth the vanes closed the damn thing will make 15psi by 3k! and up the top end you still get a nice open turbine.

controlling the vanes is a bit tricky though...


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PostPosted: Tue Jan 03, 2012 9:49 am 
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Howdy, Happy New year and all that... and sorry - been away with family and not touched the PC really.

Now, the T2 choked at 6500rpm - mine will happily rev to 8k all day so wanted something to suit.

The T2 boost came on WAY too agressively - I had no first (still dont) and then would just light up the wheels in every gear... it was fun and scary but not quite what I wanted.

I went the modified 2560 - its a GT2560 core but skyline GTR rear housing and a .51 front housing.
Its nice and smooth and winds up great.

Grant and Ben, ill SMS you for the injection mod, havnt even started it - but started building a new driveway, garage, front balcony, ensuite, and a few more things around the house :-S

Dont forget mine is running around 9:1 or 9.5:1 compression, so it drives very 'normal' off boost and then goes a bit mental when on boost.

When I get the injection on, ill run a few data maps but I am VERY happy with the 2560 setup on mine, and on yours (Grant) it would be even better due to the big bore flow, etc.

Mini13 - I would love to go a vv turbo like that and get it to spool up earlier but still nice and linear - but now its out of the budget.

Scott - Yep, turbo or S/C you can still run your air-con bud - but I just think it adds weight and loses a bit of power :-) but I do like the comfort of air lol
For your question about what turbo to use... all depends mate, if you want low down or up top... the T2 was FANTASTIC - people knock the old turbo but really, it came on boost early, held boost, was a simple and small and neat and ran fine. The only issue, over 6k it choked - if you are ok with that - grab a cheap high flowed T2 and bolt that on. It will set you back like $200 max for a good one compared to $1k - $2k for the new stuff.

Honestly, Grant I would be looking at a smaller rear housing, externally gated - same as my setup but weld the gate and put external... if I muck about with the turbo thats what ill do next.

Pete

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PostPosted: Tue Jan 03, 2012 2:26 pm 
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mini13 wrote:
I'm actually running a GT2559v (variable vane) woth the vanes closed the damn thing will make 15psi by 3k! and up the top end you still get a nice open turbine.

controlling the vanes is a bit tricky though...


interesting :)

http://www.youtube.com/watch?v=4rj6pmnY0XI

what powers the actuator? is it on/off or can you vary the angle?


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