Switchback racing Single kit.

xnick101

Switchback kits are great. Good quality, clean welds. They can easily make 700-800 whp. But I would still put BP first, Soho second, and switchback third.

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|Boosted Performance Turbo G37 Coupe|

Randomizer23

Why do you say BP first?

JLarson

Speaking as someone with a BP Kit -

Pros:
1) Twin Scroll Turbo. This has a big impact on when your turbo spools. Pay attention to the area under the curve, not just peak numbers. What's your goal? Boost at 4k+ rpms, or boost at 3k+? This is what ruled out the Soho kit for me. They showed great peak power, but I can't drive at peak most days.
2) Ease of install. Don't need to drop the engine, can do this in your garage. This means you can also service it yourself.
3) Good support. If you have an issue, Sasha will respond and take care of you.
4) Can grow with you. The 6467 turbo is enough to support serious whp (high 700s/low 800s).

Cons:
1) Cleaning the filter is a pain in the ***. Consider the filter relocation kit.
2) You may need that good support from Sasha. My intercooler (provided by a 3rd party) shipped to me with brackets welded on backwards. My fuel injectors had the wrong adapters. My charge piping didn't ship until Sasha followed up with the manufacturer.
3) It's not Fast Intentions. Not everything fits perfectly, although everything will fit. Manage your expectations and it will be ok.

My 2 cents. Boosted for 9k miles so far, no issues.

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2014 370z Touring Sport Magma Red MT // BP Single Turbo 6467 // 63mm TB's // Z1 Ported Upper Mani // RJM Pedal // Zspeed Stage 3 Clutch // 526 WHP, 451 WTQ
2006 350z (Sold) // 1990 300zx (Sold) // 1985 300zx 2+2 (Sold)

Randomizer23

Thank you. I was considering the 6767 turbo for 800whp guess I am okay to go with the 6467. Which turbo do you have? When do you make full boost?

JLarson

From my reading, the 6767 would certainly make it more easily (975 hp vs 900 hp). The 6467 would be maxed. I have a 6467. Keeping in mind I'm running on 93 octane with only the 750 cc bosch injectors which come with the kit, on the lightest spring pressure (7.5 psi), dyno sheet attached.

Attached Images

Dyno Light Spring.jpg (186.9 KB, 27 views)

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2014 370z Touring Sport Magma Red MT // BP Single Turbo 6467 // 63mm TB's // Z1 Ported Upper Mani // RJM Pedal // Zspeed Stage 3 Clutch // 526 WHP, 451 WTQ
2006 350z (Sold) // 1990 300zx (Sold) // 1985 300zx 2+2 (Sold)

Randomizer23

My plan is to get all of my supporting mods to be able to support 800whp except for a built motor and run on stock block for a bit 500whp. Then slap in a built motor and turn up the boost.

Whjaxn17

So you got second hand information and fully intended to take that @ face value on a $10k decision? Glad you're ballin out like that.

George, as in George Sohoritis told me the stage 2 kit will make over 700whp on E85. Maybe you should actually call them and get details directly from the manufacturer.

What's the rest of that list look like?

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377whp/299wtq NA
704whp/519wtq, SOHO stage 2.5
IG: pearlywhite.z