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Underbody braces, turbos and more!

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 Post subject: what turbo to go with?
PostPosted: Fri Mar 13, 2015 11:42 pm 
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Joined: Tue Jul 03, 2012 12:19 pm
Posts: 344
Location: vancouver island, canada
I will be doing a major t3 turbo build soon and want some input from the experts. Want to make about 150hp-175hp Will be running vitara pistons on a done up head with can (will be getting from 3tech) as well as running an ms 2 or maybe even an ms3. If you had a choice between a gt15 and a gt25 turbo what would you go with and why. I want good take off as well as good top end but don't want to over power the tires to much. So any input would be nice before I start collecting parts.I would like a build like t3 has but Ionly have a choice between stock, gt15 or gt25 turbo.

Edit note. Mk2 engine from 90 fly going into my 92

And if you have any extra parts you want to sell t3 let me know. I really like your coil on plug setup but don't even know where to start on that one.

_________________
92 geo metro 1.0L 5 spd. 2 dr Soon to be my turbo swap car. (Dragonfly) sold
91 pontiac firefly, 1.0L 2dr auto. stock. (The crap can) sold
91 chevy sprint. 1.0L 5 spd. My first turbo swap. (Red rocket) now the purple nurple
95 geo metro. 1.3L auto parts car. (Scrap)
91 chevy sprint turbo, blueboy keeping it "stock"


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PostPosted: Thu Mar 19, 2015 9:05 pm 
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Joined: Fri Sep 21, 2012 9:23 am
Posts: 178
Location: Mount Vernon, WA
Here you can find the two maps for both turbo chargers at this site.

http://www.rbracing-rsr.com/turbotech.html

Your limited to about 20 psi for both before they start dropping out of efficiency. They are similar, just match what pressure ratio for what you air flow rate you think you will be using. There's the thread How much does your car breath here that will help you with that.

Above is essentially asking you how you will be driving the car; daily, drag, etc.


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PostPosted: Sat Mar 21, 2015 12:10 pm 
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Joined: Tue Jul 03, 2012 12:19 pm
Posts: 344
Location: vancouver island, canada
https://www.rbracing-rsr.com/calcboost.html

Found a great online calculator for this. Just have to take boost psi to pressure ratio and your good to go.

_________________
92 geo metro 1.0L 5 spd. 2 dr Soon to be my turbo swap car. (Dragonfly) sold
91 pontiac firefly, 1.0L 2dr auto. stock. (The crap can) sold
91 chevy sprint. 1.0L 5 spd. My first turbo swap. (Red rocket) now the purple nurple
95 geo metro. 1.3L auto parts car. (Scrap)
91 chevy sprint turbo, blueboy keeping it "stock"


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