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Underbody braces, turbos and more!

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 Post subject: G13 BB pistons
PostPosted: Wed Mar 14, 2012 10:50 am 
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Joined: Wed Dec 21, 2011 5:13 pm
Posts: 12
Location: England
Hi can any one tell m how much power or boost will G13 bb pistons take ? running them in a swift gti engine, im looking at trying to get about 250 whp if i can . This set up is in a suzuki cappuccino and running 200 bhp at the crank at the moment ,i have forged rods to go in just need to get the oil squirters for under the pistons That is if the pistons will take it !!. :mrgreen:


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 Post subject: Re: G13 BB pistons
PostPosted: Sat Dec 08, 2012 12:19 am 
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Joined: Tue Apr 17, 2012 12:15 pm
Posts: 1060
Location: Curacao, Netherlands Antilles
I'm interested about this... could you post some more details? Like if it's a direct fit, the new compression ratio, valve clearance, etc?
Thanks

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 Post subject: Re: G13 BB pistons
PostPosted: Tue Dec 11, 2012 3:04 pm 
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Joined: Sat Nov 19, 2005 4:12 pm
Posts: 161
Location: Ten Boer, Groningen, Netherlands
I'm about to use the same pistons combined on H beam rods, aiming also for 250hp... Prefered on all the 4 wheels though 8)

I have BMW squirters in the engine but it looks like pistons need modifications, like maybe a small corner cut out.

I'm starting on 1bar boost, about 15 psi for you guys. Wanna go up to 1.7-2 bar but i think they will then go boom.. Top material is pretty thin.. Doesnt really matter though, turbo is supplying enough air at 1 bar for 245hp so about 200 at the wheels.. I hope :lol: Good starting point for me too reach +/- 300hp :)


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 Post subject: Re: G13 BB pistons
PostPosted: Tue Dec 11, 2012 7:23 pm 
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Joined: Sun Feb 23, 2003 4:16 am
Posts: 7688
Location: Ontario, Canada
My nephew (pink floyd on here) was running 15 psi boost on his with those pistons and stock rods for a couple of years. I don't recall him having any problems.

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 Post subject: Re: G13 BB pistons
PostPosted: Thu Dec 20, 2012 10:03 am 
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Joined: Mon May 27, 2002 11:47 pm
Posts: 1972
Location: San Juan, Argentina
Are there any taiwanese/korean OEM G13BB pistons now??? When I built my turbo engine, there only source for these pistons was SGP. That's why I chose Vitara pistons.

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 Post subject: Re: G13 BB pistons
PostPosted: Thu Dec 20, 2012 1:19 pm 
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Joined: Sat Nov 19, 2005 4:12 pm
Posts: 161
Location: Ten Boer, Groningen, Netherlands
Yes, i have NPR's


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 Post subject: Re: G13 BB pistons
PostPosted: Thu Dec 20, 2012 7:06 pm 
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Joined: Mon May 27, 2002 11:47 pm
Posts: 1972
Location: San Juan, Argentina
NPR does not manufacture pistons, but put 3rd party pistons in the box instead. Mines were TOTO (korean/japanese).

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 Post subject: Re: G13 BB pistons
PostPosted: Thu Dec 20, 2012 7:33 pm 
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Joined: Sun Feb 23, 2003 4:16 am
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Location: Ontario, Canada
PF bought his on ebay for $100/set with rings, if I recall.

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 Post subject: Re: G13 BB pistons
PostPosted: Fri Dec 21, 2012 4:01 pm 
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http://www.ebay.ca/itm/Suzuki-GEO-1-3L- ... e3&vxp=mtr

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