Turbo still not finalised ?

[prj]

Sorry, I messed up the turbo numbers. Too many numbers in same post.

What I mean is:
K26/K27 makes about same power as 3071/0.82 with same spool.

Leave the 3076 out of the picture, that is a bigger turbo and of course easily makes 500hp.
Sorry for the misunderstanding Vas. I was writing and reading 3076 for some reason when thinking 3071 the entire time. If you re-read my posts with 3071 in mind, I hope they will make sense.

Note to self:
Drink some coffee before posting in the morning

P.S.
As for GTX, I really don't see any advantage in running a GTX/0.63 compared to GT3076/0.63. The only thing could be slightly lower IAT's, but the boost will be limited by knock and then by exhaust backpressure the entire time on both turbos, not by compressor size. This is assuming stock engine.

[A80Avant]

haha!

ill agree to that 100% then (coffee wise id recommend an espresso!)

yes, 3071 0.63ar will probably be inferior to the K26/27

has Lloyd and Ross's cars have the K26/27? i think it would still make an interesting comparison to add to the forum's data though

[prj]

Lloyd might get a K26/K27.
Ross does have a K26/K27 though, but he had a lot of work done on the engine. I am having trouble getting him to dyno his though. I am sure the time will come

[A80Avant]

Ill probably get him first with the perfomance box!

[prj]

Please do, his car felt very strong.
Obviously not 500hp territory, but I would be disappointed if it makes less than 440.

[Rocco]

Please do, his car felt very strong.
Obviously not 500hp territory, but I would be disappointed if it makes less than 440.

i would be very happy to see 440Hp in Ross car ,that will means that i am close

[A80Avant]

Well ill be at Tonk's next Saturday, I don't know if that is closer to Ross, but there are some nice straight roads there for a 3d and a 4th gear

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[Ross]

Where is Tonks?? I'm a bit far down in Swindon that's the problem... lots going on at the moment so taking time out to go anywhere is a problem!

I do intend on booking a dyno run up at MRC soon though, trust me I am just as intrigued as anyone to know what power the car is making! I've over analysed Dmitri's log many times, calculated FATS and 60-90 times from it (4.0s fats, 3.9s 60-90) and fed my plots into 'Virtual Dyno' and other online gimmicks...

Assuming the 4 of us in the car during mapping weigh a total of 300kg, 60kg fuel and 25kg for tools, jacks, axle stands etc in the boot, and 1560kg is the only figure i can find for an RS2 wet weight minus fuel... total 1945kg. I tend to get 360-380WHP estimates from all these calculators. 18% loss ~ 435-460hp at the crank.

[A80Avant]

Brian is in Mansfield near Nottingham.
Regardless of any measurements I think a proper day needs to be organised, free of charge that we can all of us do a couple of runs and get similar measurements. I'm sorry but I dont trust any dyno no matter what reputation it has. I trust GPS readings and weight. Even the dyno I am scheduled to go, I won't even bother with any final figure.

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[Avantus]

I got pretty scared when installing my K26/27 to my Wagner EVO manifold... only like 1mm between the intakehousing and the manifold

Massive difference to a stock RS2 intake side... cool stuff

[Rocco]

I got pretty scared when installing my K26/27 to my Wagner EVO manifold... only like 1mm between the intakehousing and the manifold

Massive difference to a stock RS2 intake side... cool stuff

the same as mine then

i have the same EVO manifold ...and i had to rotate the coldside,because if not there are not enough space. now it is around 1mm between them , or maybe LESS¡¡


but the most important now its the new compressor wheel....

[adam g]

Being in the market for a new blower myself I have been following this and related threads.

Hope you dont mind me throwing a question in. I read along the way of someone having reliabilty issues with a turbo from 034 motorsport after only 600 miles, something to do with heat sheilding for internal rather than external wastegates. Just wondered if anyone else has had issues with the GT range (Ive almost settled on a Gt2871).

Are there any UK suppliers of the same hybrids?

Not that I want to put them down, I've only had good experience with them in the past.

[Jamo]

Its a standard turbo with the associated hotside not a hybrid but it from aet turbo dynamics Owen development etc

[adam g]

Sorry my mistake, I meant im considering the k26/gt2871 hybrid from 034

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[prj]

Go 3071, you won't regret it...
It's very responsive down low, and you will be able to use all the potential of the stock rods.
2871 is a bit meh in my opinion.