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Snowy's R35 Targa Testing And Development

Snowman

By Snowman,
in R35 GTR

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domino_z Mentor

domino_z

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those are great numbers at 19psi

would be really keen to run my car on same dyno to see what kinda gains i could expect with similar turbos - what was the cost of the spec v turbos?

ouch bad luck with the accident - though from the vid it didnt look eric bana bad. what's needed for the repair?

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Edited by domino_z
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Snowman Grand Master

Snowman

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those are great numbers at 19psi

would be really keen to run my car on same dyno to see what kinda gains i could expect with similar turbos - what was the cost of the spec v turbos?

ouch bad luck with the accident - though from the vid it didnt look eric bana bad. what's needed for the repair?

The Spec v turbo's were about $10K for the pair. They were $25K ea from Nissan! IHI couldn't sell the whole things directly but they did sell us the cores and the guys at Racepace built them from the stock housings. Given the wheel sizes etc it would be much easier / cheaper to get the same results using a Garret turbo (basically if you look at the numbers the standard turbo's are the same as a Garret 2860-7 and the Spec V turbo is the same as a 2860-5. It costs about $4K for a pair of -5's). You will still need to either change the manifold or adapt the cores into the standard housings however. Or else buy one of the pre-done units like the AMS Alpha 9 etc which is essentially all they are. But I actually think this slightly bigger turbo is ideally suited to these cars.

As for the car it's mostly superficial from our initial inspections. Nothing serious is broken - I drove it onto the trailer after it was pulled out of the ditch. And the good news for me is there is a top bloke by the name of Mark Hansen that happens to have a bunch of these parts I need laying around :)

domino_z Mentor

domino_z

Posted
Posted (edited)

The Spec v turbo's were about $10K for the pair. They were $25K ea from Nissan!

oooo that's a spicey meatball

im still on the fence whether to take the next step and swap out the turbos, but will keep an eye out for any used spec-v's that hit the net

re parts, also check out yahoo japan auctions for anything you're missing, there's so much cheap used oem parts on there

Edited by domino_z
Snowman Grand Master

Snowman

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Well if you think about the turbo sizes in relation to the old models - the current stock R35 turbo is the same size as found on a stock R34 N1 GT-R (which was a 2.6L engine) and the Spec V turbo's are the same as the Z Tune ones (which was a 2.8L engine). So really they are massively under turbo'd which is why the upgrade made no noticeable difference in drivability from a response POV - but made a significant difference in power.

N1GTR Grand Master

N1GTR

Posted
Posted

The Spec v turbo's were about $10K for the pair. They were $25K ea from Nissan! IHI couldn't sell the whole things directly but they did sell us the cores and the guys at Racepace built them from the stock housings. Given the wheel sizes etc it would be much easier / cheaper to get the same results using a Garret turbo (basically if you look at the numbers the standard turbo's are the same as a Garret 2860-7 and the Spec V turbo is the same as a 2860-5. It costs about $4K for a pair of -5's). You will still need to either change the manifold or adapt the cores into the standard housings however. Or else buy one of the pre-done units like the AMS Alpha 9 etc which is essentially all they are. But I actually think this slightly bigger turbo is ideally suited to these cars.

As for the car it's mostly superficial from our initial inspections. Nothing serious is broken - I drove it onto the trailer after it was pulled out of the ditch. And the good news for me is there is a top bloke by the name of Mark Hansen that happens to have a bunch of these parts I need laying around :)

There's a surprise. Is it actually the -5 core in the R35 housings or is it "almost" the same?

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