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Underdrive Pulleys


gt-p

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Send me a PM and I'll hook you up, don't forget to PM me your email address or I can't get you all the info you'll need.

As for the questions about how it works,

Its a bit like getting your Air/Fuel just right, from the Factory Ford tunes your car rich, this tune is safe but lacking in performance.

The stock harmonic balancer in the BA-BF is crap, its from the stone age. Replacing it gets your engine using only what it needs and no more.

I tested my car and found no voltage loss with the lights, fog lights and sub pumping.

Theres no loss to any ancilliares and no ones has reported to me claming there is.

Ive helped heaps of people get these Balancers and everyones happy with the results, you'll see the gains on a dyno and feel them in your seat, plus 2 guys at Ford Forums fitted them went racing and cut 0.2 off their 1/4 time.

These things work and are much stronger than the factory one, if you ask me anyone running the factory balancer is taking a risk with their engine.

Theres heaps of XR6, N/A and Turbos that sport K&N flat filters (which give you bugger all gains maybe 4 or 5 kw at the fly) try 9 rwkw from the Under Drive at about twice the price of a K&N and that result is on a N/A.

Theres a Turbo going to be tested very soon I hope to see even larger power gains. Its a massive ask but if it gets 15 rwkw then its better value than a edit with a custom tune.

Right now a tuner doing you a good deal will charge $1200 for an edit and tune, and all going well you may see as much as 35 to 40 rwkw gain.

The under drive fitted shouldn't cost you more than $400 for a N/A the gain is 9 rwkw.

I can't wait to see the XR6T test.

Drop me a PM if your up for it.

Greg.

Edited by NOS XR
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  • Sucker
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Theres a Turbo going to be tested very soon I hope to see even larger power gains. Its a massive ask but if it gets 15 rwkw then its better value than a edit with a custom tune.

May be better value in terms of kw/$.....but you can't really fit three of them if you're after 45kw :spoton:

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May be better value in terms of kw/$.....but you can't really fit three of them if you're after 45kw

Is a gain of 45 rwkw normal for a stock XR6T with a custom tuned edit, or is it more like 45 @ the fly? Cos 9 rwkw in a N/A is more like 12 kw @ the fly.

I always look at Power Gain Vs Dollars.

BTW 9rwkw for under $400 fitted with the under drive on a N/A Falcon "OR" 14rwkw from the Edit for $1200.

I know what I'd do, (and did) both, its not a question of which mod is better, Im just trying to say the Under Drive is very good value any way your look at it and it should be looked at against the best around to see just how good it is.

I don't think for a second that there'll ever be XR6T owners diving around with their only nod being a Under Drive balancer, but its like anything, all small gains add up. that's why most tuners sell packages. Under Drive Balancers arn't going to do much for a XR6T if its already sporting 400rwkw but if you don't have it and you come in 2nd at the next dyno comp by 1 kw, whos the fool?

Edited by NOS XR
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It knocked 4 tenths off my time Greg ! Should hook people up with a link to my underdrive thread ...... I would but I,m banned again !!! :spoton: It also weighs 50% less ....Cheers.. :spoton:

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Hey ppl,

Apologies if this topic is dead and buried, but was just after opinions...

Trawling through old posts I saw NOSXR among others buy up and fit them to N/A falcons, but didn't/haven't seen any newish posts (2007's) about this mod?

Was wondering what the final verdict was on these for T's? if there has been a final verdict...

cheers

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Hmm ok cheers SCRIBR. From the lack of replies I guess this is the case...

Get intouch with him about this one topic. I believe that he is doing some testing on a turbo car very soon and he should be able to tell you the resolts from this.

To answer the question before it is asked no it is not on my car...

GK

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  • 4 weeks later...
  • Formerly EGOBFXR6
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Wow,

Thanks guys - I had always wondered what they did!

Thanks for clearing that up.

Dan

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  • 3 weeks later...

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