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Hey all,

I have a 33 gtr and I'm looking to add some cams.

I'm going for tomei as no extra work is needed just drop in.

But I'm unsure to go type a or type b.

I'm not the most mechanically minded so reading specs isn't helping me.

What would I notice in the way of difference installing one over the other?

Which should I go for?

My set up is a forged rb26

-5s with the bolt ons making 340rwks at 18psi

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Does make more power with less boost.

Tough idle.

better midrange and topend.

Check out the RB26 dyno thread. You'll find my graph (tomei type b) and my mate's Sloane, similar cams, and other similar setups.

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Will it make it any more responsive? More torque? More kws? Etc?

On the street or a dyno?

I know two people who took them out (for stock), went faster around Sandown. You be the judge, it's not just about dyno plots when fully loaded.

I've said that enough over the years so I'll leave it at that.

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Or keep the stock cams, tune to 22-24psi and see how much it makes then.

If it's 360+ keep the stock cams.....

If you want to push over 390-400 the stockers may need replacing.

In the end it is up to you.

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Such contradicting info out there over cams! My tuner said i should get them but others say dont bother etc.

The car is a daily driver with drags on the weekend in mind.

Also while people are reading, my boost controller is a AVC-R, ive never had one before. does it allow for a high / low boost settings? ie 17 - 18 psi daily. 21 psi drag day?

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Such contradicting info out there over cams! My tuner said i should get them but others say dont bother etc.

The car is a daily driver with drags on the weekend in mind.

Also while people are reading, my boost controller is a AVC-R, ive never had one before. does it allow for a high / low boost settings? ie 17 - 18 psi daily. 21 psi drag day?

You can have either high, low or off setting, all this depends on your wastegate spring of course, its a good controller, in your lower gears like second you can increase the duty to fine tune, you can ramp it up early too just be careful if you dont know what your doing...

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You can have either high, low or off setting, all this depends on your wastegate spring of course, its a good controller, in your lower gears like second you can increase the duty to fine tune, you can ramp it up early too just be careful if you dont know what your doing...

Yup strongly agree with this I found out real quick what over boosting was when first attempting to use the avcr who ever ends up tuning get them to show you

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