Go Fast Bits Power-Up Pulley Kit - Nissan Pulsar SR20DE FWD

Average Power Gains that can be expected are up to 7kw for normally aspirated engines and up to 9kw for forced air systems. Coupled with the excellent anodised finish and fit, youll have a pulley kit that will give you the extra edge you need!

How do they do this? GFBs pulleys are manufactured on the latest Multi-Axis CNC machines from the highest grade 6061-T6 aluminium billet, making them immensely lighter than their factory steel counterparts. This lower weight yields a large reduction in the rotating inertia of the belt train, allowing the engine to accelerate faster. The effect is similar to fitting a lightened flywheel and is particularly noticeable in the lower RPM range before the turbo spools up. This is because the power required to accelerate a heavy pulley accounts for a much greater proportion of the available power at low RPM. Additional power increases also come from a slight change in the ratios to reduce the driven load of the power-robbing peripheral components (particularly at high RPM), without affecting their performance.

Comes with crank pulley only. Not suitable for SR20DET (turbo) engine.

We currently have no DIY Tips available for this product.

If you have installation experience with this product and want to share your tips please get in contact with us.

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See what ben Styles had to say about this product

I was a bit alarmed by the review posted previously on this web-site so I actually went to the source and asked GFB for some advice on their product as I was very keen on the pulley. They were very helpful and responded professionally. This is the response that I got:

We have indeed rectified the problem; interestingly not a single SSS owner who has our pulley has ever brought the problem to our attention.

Of course, all the testing we did didn’t show a problem as it
takes a while for the wear to occur, and even then the wear occurs at different rates depending on the condition of the oil seal.

One thing though is that vibration cannot be caused by the pulley – they are balanced and wear due to the oil seal is nothing more than a small circumferential groove – balance is certainly not an issue. When rotating mass is reduced, the natural engine vibration will be more noticeable, because there is less resistance to the individual pulses on the crankshaft with each power stroke – you will certainly notice this effect when installing a lightened flywheel. This is not a problem, it is simply like firming up the suspension bushes in your car – more of the vibration that is already there will be felt through the cabin.

Our latest batch of pulleys now features a steel sleeve on the surface where the oil seal runs to protect the aluminium, so no wear problems will occur.

When installing the pulley it is good practice to replace the oil seal at the same time.

Average Member Rating:

[3 of 5 Stars!]

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