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Scion tC 1G Forced Induction Turbo and supercharger applications...

custom built turbo

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Old 10-24-2006, 09:08 PM
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Default custom built turbo

wat type of turbo should i run t3/t4 or a 16g evo8 turbo which one would be better? i want a fast spooling turbo and run under 10 psi.
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Old 10-24-2006, 09:10 PM
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dang i want a turbo too, how much does it cost Ghosty44?

and whats the boost in hp? man if only i have the money
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Old 10-24-2006, 10:08 PM
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i got parts for a custom built turbo kit from raamaudio i m going to finish fabrication on the manifold..but i just curious wat turbo is better i planning get the evo8 turbo from evolutionm.net and everything else i will fab. up this is going to take a long and time consuming build..the cost is all up to you most like going to cost me around 2000 that with out tuning i guess...dont know yet power gain i trying hit the 250 whp range or higher...
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Old 10-24-2006, 10:11 PM
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I dont think there would be a true answer for this.
One is going to spool faster than the other. And the other will make more high end power. There are tradeoffs for every turbo and it all depends on what you are using it for.
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Old 10-31-2006, 04:38 AM
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yea!! thanks for the input i m going with the fast spooling 16g turbo...i want to do is daily driver with a little spunk that can take on those honda with swap motors ahahaha!!
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Old 10-31-2006, 07:59 AM
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Default Re: custom built turbo

Originally Posted by Ghosty44
wat type of turbo should i run t3/t4 or a 16g evo8 turbo which one would be better? i want a fast spooling turbo and run under 10 psi.
20G upgraded evo8. i believe its only $899. Just for the turbo.
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Old 10-31-2006, 02:42 PM
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DBB 50 trim this is the turbo you want.
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Old 11-01-2006, 11:59 PM
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ahaha!! i not planning pust to much on my motor yet so i m going small first running a 16g turbo that i will rebuild...and running raamaudio custom turbo manifold so i m going see hwo it works out first thanks for the input
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Old 11-02-2006, 12:00 AM
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oh yea guys curious it not safe to over rev a turbo motor right... one of my friend that is a mechanic told me if you want your motor to last longer and safer way to run boost used two bov... and he told me mount one near the intercooler and one before teh throttle body is this true but i dont know how diffcult it would be to do?
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Old 11-02-2006, 07:31 PM
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Originally Posted by Ghosty44
oh yea guys curious it not safe to over rev a turbo motor right... one of my friend that is a mechanic told me if you want your motor to last longer and safer way to run boost used two bov... and he told me mount one near the intercooler and one before teh throttle body is this true but i dont know how diffcult it would be to do?
dahahahahahhaha . That is the stupidest ____ I have ever heard. Tell your friend that he should go back to school. One bov is plenty. And since the TC is a maf car, you must recirc your bov.
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Old 11-02-2006, 08:40 PM
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oh lolz!! maybe i wasnt listening to him closely lolz!! i probly made him sound stupid now
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Old 11-02-2006, 08:42 PM
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oh yea is it good to put your bov far away from the throttle body in the center or really close to the throttle body?
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Old 11-02-2006, 08:51 PM
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it doesnt on your intake..
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Old 11-02-2006, 10:54 PM
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i used to have the evo3 16g that zpi runs and recently changed over to a Slow Boy Racing's Bastard 20G

its 20G wheels in a 16g housing, spools just about as fast, just more controllable (believe me, sometimes you dont want boost and the 16g is hard to keep from spooling). but anything above 3.5k-4k rpms pulls much better than the same 6psi on the 16g
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Old 11-03-2006, 01:34 AM
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thanks for the advice but i m low on cash so taking it alittle slow
at first and upgrade my turbo as i go along...when you play with boost your bond to break something sometimes so i'm being a little skitty...
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Old 11-04-2006, 05:21 AM
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hey for any of you guys running boost/w controllers... you may want to look into race fuel.. allows you to safely turn up your boost... example..


The highest octane unleaded street legal fuel in the U.S. Provides power and protection equal to some leaded racing fuels. Allows even more aggressive timing and higher compression -- up to 14:1 in cast-iron head engines and up to 15:1 with aluminum heads. Typically allows turbo engines to increase boost from the stock 8-10 lbs. to 20-25 lbs. Not universally street legal due to MTBE (see below).

Although StreetBlaze 101 and 103 are street legal in many states, local and state regulations should be consulted to ensure compliance in your particular area before using on the street. VP has not conducted a nationwide search to ensure compliance in all states and local areas. VP also encourages its customers to obey all traffic and safety laws, as well as confine racing activities to the track using appropriate safety gear.

• Color: Red
• Oxygenated: Yes
• Motor Octane: 99
• R+M/2: 103
• Specific Gravity: .743 at 60° F

website ----> Vp Racing Fuels
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