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Spec c RA-R .........VF42

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Old 15 January 2010, 08:30 PM
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juggers
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Default Spec c RA-R .........VF42

If i go for bigger injectors 3" exhaust and a remap what's the max power and torque i can get?

Am in two minds as to go for one of litcho's new turbo's but if i can get 400 then there not much point for an extra 20bhp.

Immy

Last edited by juggers; 15 January 2010 at 08:35 PM.
Old 15 January 2010, 09:00 PM
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360 bhp / 400ft/lbs torque maximum IMO, with uprated actuator. Figures based on e.g. Dyno Dynamics Rollers

Bearing in mind 400ft/b torque will require uprated clutch too as I soon discovered

Last edited by rickya; 15 January 2010 at 09:07 PM.
Old 15 January 2010, 09:07 PM
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stevebt
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Surely a vf42 will get more than 360bhp? that just seems normal twin scroll territory ?
Old 15 January 2010, 09:09 PM
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Not enough data on the VF42 to give a definite answer. You'll have to suck it and see.
Old 15 January 2010, 09:10 PM
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You might be right Steve as its bigger than a VF36/37 which maxes out at approx 350bhp.
Old 15 January 2010, 09:11 PM
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Ima,
My old twinscroll hybrid was better than a VF42 and that achieved just over 375bhp. However, that was running a thick wedge of boost for what it was, 1.7bar iirc. If I were you, I would go for the Litcho turbo and be done with it..... the 440bhp one.
Old 15 January 2010, 09:13 PM
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I had some comparison data years ago and my hybrid murdered the VF42 on lowdown grunt.
Old 15 January 2010, 09:14 PM
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Found this

North London Scoobys - Mapping & Performance
Old 15 January 2010, 09:23 PM
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See attachment. My hybrid is the higher line and both turbos at the same boost. Top end was roughly the same on both (my hybrid was slightly more).
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Old 15 January 2010, 09:27 PM
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How did you get a hold of a VF42, nice one! I have a hybrid turbo waiting to go on mine this year, i'd be happy with that graph.
Old 15 January 2010, 09:29 PM
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Don't do it, RA-R's must remain standard

TX.
Old 15 January 2010, 09:39 PM
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Maz
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Originally Posted by Terminator X
Don't do it, RA-R's must remain standard

TX.
Next you'll be telling him not to exceed 3000 RPM.
Old 15 January 2010, 09:59 PM
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Nice one for the info Shaun was the vf42 run on your car or was it on a S204/RA-R when you did the comparsion?

I can understand the higher torque on your hybrid as the vf42 does tend to kick in later but pulls all the way to red line as opposrd to the vf37.

By the looks of the graph does the bybrid tale of before the vf42?
Immy

Last edited by juggers; 15 January 2010 at 10:03 PM.
Old 15 January 2010, 10:03 PM
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Immy,
S204 iirc.
Old 15 January 2010, 10:05 PM
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Originally Posted by rickya
Umm interesting.
Old 15 January 2010, 10:06 PM
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I think you've mistaken me for SSU

TX.

Edit - don't really mind what he does good for me in the end as the RA-R will be mine one day OH YES!

Originally Posted by Einstein RA
Next you'll be telling him not to exceed 3000 RPM.

Last edited by Terminator X; 15 January 2010 at 10:14 PM.
Old 15 January 2010, 10:14 PM
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Alan MaC
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I've got a VF41.

2 Litre Scoob.

305 BHP, 290 Ilb a foot, @ 1.25 Bar.


I;m not sure about the VF42, I would have thought it was better than the 41?


Regards

Alan MaC
Old 15 January 2010, 10:23 PM
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VF41 is from a legacy isn't it? Different turbo completely.
Old 16 January 2010, 07:45 PM
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Alan MaC
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Originally Posted by bluenose172
VF41 is from a legacy isn't it? Different turbo completely.
Nah, it's from a Forester.

I thought VF41____VF42 next number up, must be better.


Regards



AM
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