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Discussion Starter #1
Everybody,

I have an 08 ZX10 that I am really considering turbocharging this winter. Without getting in to too many details of my plans (that would take a couple of paragraphs) I was curious around what horsepower these things fail, and what component gives out. Also, are these motors internally the same as the 04-07? I believe it was Wiseco, but I saw one company that sold pistons and listed them as being 04-08 ZX-10R.
 

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Speed Freak
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I think the pistons will work from wiseco and JE.... they make 10.5:pistons for them... I've seen a few guys running around 300hp on stock motor with turbo pistons but when you get to high hp turbo motors i think 450 was pushing it????
 

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Discussion Starter #3
So I would therefore assume that pistons are the weak link? I am pretty excited about a turbo setup but I don't want to short-change myself with my power goals. Right now I am planning for 200-210 wheel, but if more is reasonable then so be it. Also, how competent do you have to be to install pistons on sport bike motors? I've never really gotten into one so forgive me if it is a dumb question.
 

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Speed Freak
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you have to completely tear the motor down since we have top case blocks..... I think the bottom end is what fails.... honestly though if your only looking for 200-210 to the wheel you could probably boost about 4-6 psi on stock pistons and be fine.
 

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OK, I just don't want the motor flinging apart drastically faster than stock.
 

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Install forged pistons & valve springs over 250, and rods and stainless exh valves over 300 in my opinion - assuming that the tuneup is safe. I ran 300hp on stock rods with no problems. 4 qts of Rotella synthetic.
 

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Thanks^^ Out of curiousity what turbo sizing have you found to be effective?
 

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I used a PTE SCM5027, a 50 trim TO4E / T3 hybrid. On the big side, but very streetable with the .48 stg II turbine wheel. I'm switching to a PTE 6262SP, race only.

IMHO, choose according to how much power you want to make 2 years from now. Get a bit bigger compressor than you think you need. These motors don't come alive until 6500, don't limit yourself to turbos that spool at 4200.
 

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The biggest thing will be to keep a good tune in it. I had a oiling issue which caused mine to fail,however had that not happened everything else looked fine. I dont know of anyone else that has one turned up as high as mine was and it was just fine.

Everything that Dean said is right on. Figure out what you are going to want in the end. 2-3 years down the road, this way you not spending twice a much down the road to do it again.
 

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Discussion Starter #10
I plan on running a 3071 or 3076, still debating whether to run a v-band exhaust housing or twin scroll. I haven't gotten together with my main fabricating partner to see what kind of room we are dealing with but I hope to make that turbo work.
 

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inappropriate
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you have to completely tear the motor down since we have top case blocks..... I think the bottom end is what fails.... honestly though if your only looking for 200-210 to the wheel you could probably boost about 4-6 psi on stock pistons and be fine.
:iamwithsteasily. i wouldnt touch anything over 6 psi without an upgraded fuel pump and fmu. i learned the hardway after an internal wastegate went apeshit and my boost spiked past 8psi, blowing my first motor.

Install forged pistons & valve springs over 250, and rods and stainless exh valves over 300 in my opinion - assuming that the tuneup is safe. I ran 300hp on stock rods with no problems. 4 qts of Rotella synthetic.
Rotella T :thumbsup:
throwing in a BEGI FMU, and upgraded fuel pump im positive your internals can handle 7-8psi safely which should put you around 240-250hp given you have a good turbo (gt28), lube system and tial external wastegate.

Thanks^^ Out of curiousity what turbo sizing have you found to be effective?
the gt28r is what velocity uses and im using an upgraded gt28rs which just spools a bit faster
 
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