easy HP upgrades - Scion XB Forum
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post #1 of 32 (permalink) Old 05-07-2010, 06:54 PM Thread Starter
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Default easy HP upgrades

I have a stock 2008 xb and am looking to squeeze out as much Horse Power as I can for the least amount of money.

I was originally looking at turbo kits, but that's just not in my budget.  I'm hoping everyone can help me decide what is the best mods to make while not breaking my bank entirely.  The number one issue I want to avoid is making sure I keep this entirely street legal and can pass smog tests.

The first upgrade I was thinking of was either cold air intake, an intake manifold mabye...

I was looking at the Weapon R race intake manifold and thinking it sounded the best as far as my first step because for the money, you can't beat this HP upgrade. 
Has anyone installed one of these yet that can advise if this is a good idea?  Or just help me get started?...
http://www.fastscions.com/scion-tc-x...-manifold.aspx


Can anyone suggest any good starting points? Just looking for some good suggestions on what others have done to their XB's
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post #2 of 32 (permalink) Old 05-08-2010, 10:15 AM
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Default Re: easy HP upgrades

First off, welcome to the site.

The intake manifold won't do you any good unless you have a turbo. I'd start off simple with a cold air intake, then an exhaust.

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post #3 of 32 (permalink) Old 05-08-2010, 02:29 PM
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Default Re: easy HP upgrades

Start with a TRD CAI an then the NST Pulley.

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post #4 of 32 (permalink) Old 05-08-2010, 03:38 PM
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Default Re: easy HP upgrades

Cold air intake is probably the easiest but it gives you minimal hp from what I hear with our xb's defintly less than 10. ?fter that I'd say exhaust is up next after for easiest hp. But if your looking for the most horsepower for the money it has to be a turbo. So instead of spending atleast $500 on an exhaust and cold air intake you can use that money and save up towards a turbo.

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post #5 of 32 (permalink) Old 05-08-2010, 05:15 PM
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Default Re: easy HP upgrades

The cheapest way to make it faster would be to lighten it. Remove the spare, rear seat, sound deadening, trim, etc.
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post #6 of 32 (permalink) Old 05-10-2010, 01:14 PM Thread Starter
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Default Re: easy HP upgrades

Bummer, so Cold air intake is not all that great? I got this car with the factory TRD exhaust. Do you think it's worth it to go get new exhaust over the factory TRD? Will it be a noticable improvement?

gr8scape says to start with a TRD CAI an then the NST Pulley. Does anyone know how much HP we'd be talking about with these upgrades?

Also, I'm not sure if by doing any modifications, will this void my warranty on this car? I'm still not 100% possitive if I want to try to beef up this car a little bit, or if it's just not practical.

Is there no way to squeeze another 30-40hp out of this little 4-banger?
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post #7 of 32 (permalink) Old 05-10-2010, 01:25 PM Thread Starter
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Default Re: easy HP upgrades

I was also just talking to my freind who was doing a little research on the CAI's. he said he read the TRD added factory CAI was not as good as other brands.

Who is using what CAI's? I'm wondering if there is one brand that is specifically the best.

Does anyone know of a way to compare the different brands to figure out which one will give me the best improvements?
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post #8 of 32 (permalink) Old 05-10-2010, 08:01 PM
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Default Re: easy HP upgrades

Quote:
Originally Posted by grza
Is there no way to squeeze another 30-40hp out of this little 4-banger?
Dude, you should have bought another car if you are looking for HP numbers like that. You are going to spend a lot of money to get that kind of HP increase out of this car.

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post #9 of 32 (permalink) Old 05-10-2010, 09:31 PM
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Default Re: easy HP upgrades

drop in a new engine.

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post #10 of 32 (permalink) Old 05-10-2010, 11:27 PM
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Default Re: easy HP upgrades

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Originally Posted by Chrevis
drop in a new engine.
I dont think that is a very easy way to gain horsepower. Takes a lot of downtime and money for an engine swap. This is a guess but im pretty sure it would void your warranty as well.

Going with a turbo will not void warranty unless you blow your engine because your psi is set too high or installing the turbo kit incorrectly. They must prove that your aftermarket part was the cause of the damage to void the warranty.

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