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How much HP does a turbo add?

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Old 02-15-2007, 07:30 PM
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I have an 88 turbo 2 and was wondering how much hp my garrett a/r .50 and greddy XL FMIC adds?
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Old 02-15-2007, 07:38 PM
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Originally Posted by Kaedachef' post='859251' date='Feb 15 2007, 08:30 PM

I have an 88 turbo 2 and was wondering how much hp my garrett a/r .50 and greddy XL FMIC adds?
also i have greddy type rs blow off valve
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Old 02-15-2007, 07:48 PM
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that question is way to vag to anwser need a lil more info
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Old 02-15-2007, 09:50 PM
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The greddy name BOV adds 50 hp by its self
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Old 02-15-2007, 09:57 PM
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millions....
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Old 02-16-2007, 12:00 AM
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Originally Posted by One320B' post='859273' date='Feb 15 2007, 10:57 PM

millions....


no seriously.



Its got unorthodox racing pulleys, hks intake, full 3" exhaust split to 2 - 5 inch mufflers, greddy intercooler piping, 9.5 mm wires, 50mm wastegate. I'm just trying to get an idea.
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Old 02-16-2007, 01:34 AM
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Well considering half of the parts you have listed do absolutly ZERO for HP. Go pay for a dyno they are not that expensive.
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Old 02-16-2007, 08:18 AM
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I noted you said full 3" exhaust w/ intake... this should have created a raised level of boost to around 8-10psi depending on your wastegate... do you already have a 50mm WG with the stock turbo?



I'm confused... what turbo is installed RIGHT NOW on the car? Is the factory located top mount intercooler still there?



A turbo upgrade by itself won't really yield anything at the same boost levels you have now, it'll just be more efficient.. the combination of upgraded turbo w/ more boost and better intercooler would yield you more power as well, but how much depends on your supporting modifications and your engine (which I'm assuming is stock ported)...



Mods are measured as a whole, not individually...i could have a huge t78 turbo on my stock EVERYTHING else and it wouldn't do me any good...probably harm...
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Old 02-16-2007, 09:40 AM
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accually, adding a bigger turbo increaces the volume. not really raising boost. but still adding power.



and racing beat claims that by adding there exhaust on a TII you gain 26 WHP, i think. thats wheel! so....



depending on your boost level. im gonna guess 8-10psi. and mods, fairly decent running engine. i would guess about 210 wheel.



since you have an S4.



anyone gonna blast me for my WHP guess?
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Old 02-16-2007, 01:30 PM
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Are you asking somebody to, lol?



the answer is not definite... You'll gain some HP from those upgrades, but how much depends on a lot of other things...
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