adding hp

[KSIbucky]

If you put a good cold air intake, headers and a new pulley. Also take out the rear seat get and get new tires/rims. How much horsepower would you have? What else can you do other than a NOS, turbo, supercharger, or engine swap to add horsepower? (also I said this to a friend and he said "What about a short shifter?" and I had to explain to him how that doesn't raise your horsepower)

[cm07yaris]

Hey we should meet up sometime! I'm in Appleton!

[staticorex]

hmm. Well removing weight won't add hp either. It adds figurative hp. (which is about 1whp per 6lbs) But the engine still produces the same. You can reduce engine weight, ie pulleys and such, to add hp. But a rear seat and new rims don't a more powerful engine make.

Most bolt ons don't do much for the Yaris. A cai, header and downpipe, custom exhaust and set of pulleys is your best setup for hp increase right now.

New rims would give you your best suspension upgrade. A strut-tower brace and sway bars are good too. Also new strut assemblies.

[Nexus1155]

individual throttle bodies FTW...

[staticorex]

?? I'm intrigued. What's that? :p

Individual like somehow separated from the im?

[umm_bacon]

I have been asking the same questions on here for a few weeks now, and after seeing the replies and reading threads, my impression is that you can't. You could easily drop $1,000 or more, but I really don't think that you would notice an appreciable difference in hp terms. The advice I seem to get from most is that improving handling would give you noticeable gains, but headers, CAI, exhaust, and the like would probably only make it sound faster. I think that there might be something to be said for the NST pulleys, and there is another kit coming out soon, but I am not completely convinced that it would not adversely affect other things like AC or something and there is the warranty to consider. It *might8 give you a slight gain in hp, but I still think that is a might, you won't drop seconds off a 1/4 mile or anything.

I can tell you that I bought some lighter and slightly wider rims, and I do feel that made a noticeable difference at high speeds and fast cornering. Won't make the car faster, but I think that the notion of making the car faster without replacing literally every part (I think you would want to do with a turbo or by swapping engines) and spending lots of money is pretty unrealistic.

Take it for what it is worth. I am by no means an expert, but I have read a lot on here and asked many questions. Seems to be the general consensus of the slightly more logical, practical (I am not trying to put anyone down here) owner that the only improvements will be noticed mainly through suspension stuff and that "performance" upgrades are probably just more for show/uniqueness. That is fine, but if you are looking for radical improvements in top speed or acceleration, well...just be happy with the car stock. Again who the hell am I to say, but if you are anything like me, then that might be the conclusion that you come to after looking/reading around. Good luck in your search and I'd be interested in what you ultimately decide to do.

EDIT: After seeing that you probably aren't looking to see what I just typed, I apologize...I re-read your initial post. I'll shut up.

[staticorex]

Ha. Yeah that's spot on. i/h/e may add one or two whp but other than the pulleys we aren't getting much improvement. Right now I'm just dropping weight and increasing handling. Later there will be more FI kits available.

[umm_bacon]

http://www.danstoy.net/products.html

That is pretty bad ass though...

[KSIbucky]

How many people make headers for the yaris

[umm_bacon]

I have seen two. Megan and DC. The DC are ceramic coated.

[umm_bacon]

Here are some links of places that have stuff for the Yaris:

http://www.iptuned.com/

http://www.optionimports.com

http://www.nonstoptuning.com

http://www.wesellcarparts.com

There are others in the Sponsors Classified section.

[yalease]

lotta cars with low stock hp, bolt on mods won't be that noticeable performance wise. But, you should've already known that when u bought yaris in the first place. But with all the bolt on mods, it'll make the car sound more pleaseable..

If you want some hardcore performance, get turbo, nos (if you must) and go from there.

[umm_bacon]

You could always try removing everything that is not essential to the car's functioning and buy lighter parts. I imagine that you could drop nearly 300 lbs, and that should improve things a bit. It would be a miserable ride, but it might accelerate better.

[jeremyshay]

bigger wheels = less torque... keep um under 16"

[Black Yaris]

turbo 2zz FTW
http://www.danstoy.net/images/Turbo-kits.gif

[kurokoma-kun]

gaaaaaahhhhh :drool:

But I would not be able to drive it! I sure would hate to get that sleek shiney thing all greasy and dirty. It's like stainless steel sculpture.

[eTiMaGo]

yeah one of those would certainly make for a rip-roaring Yaris... but at what cost? :biggrin:

I guess, if you really want more power at a more reasonable price, you can't beat NOS... It'll get expensive in the long run, but I guess the entry cost per HP is by far the lowest.

[thebarber]

intake, header, and a header-back exhaust you'd be lucky to pull stock crank #'s at the wheels....

but for added zoom, you can add lightened parts to allow the engine to rev more freely. no hp gains, but faster slips

[staticorex]

Actually lighter engine parts do add hp. They lessen the gap between bhp and whp since they are the reason for the gap in the first place.

[KSIbucky]

I really want to put in a dry nos kit how much would that cost (like a 10 ounce tank) acctually just forget the tank all together and just the system cost?

[staticorex]

I believe we cannot use dry kits in our cars. Can't remember why so someone either validate that or tell me I'm full of shit. :)

I would go wet anyway. And look at $500-$1000 for a nice setup.
http://www.compperformancegroupstores.com/store/merchant.mvc?Screen=PROD&Store_Code=ZX&Product_Code=82021&Category_Code=NITROUSSYSTEMS

[thebarber]

I believe we cannot use dry kits in our cars. Can't remember why so someone either validate that or tell me I'm full of shit. :)

I would go wet anyway. And look at $500-$1000 for a nice setup.
http://www.compperformancegroupstores.com/store/merchant.mvc?Screen=PROD&Store_Code=ZX&Product_Code=82021&Category_Code=NITROUSSYSTEMS
cant go dry because the nitrous out of the jets will freeze the plastic intake manifold, and it will crack and/or explode. i saw pics of a guy with a 1zz matrix/corolla/celica with a busted IM

Actually lighter engine parts do add hp. They lessen the gap between bhp and whp since they are the reason for the gap in the first place.
fyi, lighter rotating parts do NOT add hp to the wheels, they allow the engine to turn faster.

i had a fidanza flywheel in my matrix xrs....7.5lbs vs 13lbs stock....felt like the car dropped 500lbs when i first drove it out of the shop. first gear lift was over in a blink! but i dyno'd the same as all the other matrix guys running with the same mods. as a matter of fact i have a dyno showing my xrs vs another xrs who had more hp....we were both in the same gear for the runs and we graphed the hp/tq vs time instead of rpms.....despite having 5 or 6 less hp, i hit redline about a half second before him....

[staticorex]

Huh. News to me, but I'll take your word for it. :)

And plastic IM. WTF? :p I had never seen that till Toyota.

[eTiMaGo]

reduces cost and reduces the heating effect of the engine onto the incoming air, pretty clever really

[staticorex]

Yeah. Till you want to add nitrous. :P

[eTiMaGo]

somehow I don't think that was a primary objective of the Toyota engineers :biggrin:

[staticorex]

Well it damn well should have been! Especially in the Yaris! I mean, come on!! :p This thing just begs to be an 8 sec car. :)

[Lafiro]

From a 17 ?

[redyaris]

This topic cracks me up and somehow intrigues me at the same time.

[eTiMaGo]

This topic cracks me up and somehow intrigues me at the same time.

dude, your car cracks up yet intrigues most of us at the same time :biggrin:

[loafer650]

chip / bore / forged pistons and rods / crank / camshaft / full synthetic oil / upgrade valves and springs / 1000cc injectors / upgraded fuel lines /light flywheel / port / standalone engine management / full exhaust system / cai / and a stg 4 clutch to handle the power!

[jdium]

chip / bore / forged pistons and rods / crank / camshaft / full synthetic oil / upgrade valves and springs / 1000cc injectors / upgraded fuel lines /light flywheel / port / standalone engine management / full exhaust system / cai / and a stg 4 clutch to handle the power!

Now you're up to 15's with a good driver :smoking:

[Black Yaris]

Huh. News to me, but I'll take your word for it. :)

And plastic IM. WTF? :p I had never seen that till Toyota.

you must have never owned a domestic car before.... they have been using them ever since they have been using MFI

[staticorex]

Come now. Do you take me for an idiot? Why would I EVER own a domestic? :p

[Black Yaris]

Come now. Do you take me for an idiot? Why would I EVER own a domestic? :p

you try living in a town supported by the "big 3" and own an import, not going to happen untill you are ready to get ran off the road and hazed constantly... we have in our city muliple jeep plants, a GM powertain, and a ford stamping plant... that is just what is in toledo city limits.... hell if you go with in 20 mile radius you will probibly find atleast a dozen that I know of... Domestics own this town.... so there are LOTS of mechanics and parts stores with job security

[loafer650]

Now you're up to 15's with a good driver :smoking:
:drinking: crap i forgot to mention a F1 wing to keep the rear wheels on the ground!

[staticorex]

Black Yaris, We don't have the factories here but this is hickland. We catch crap for imports too. But it's okay cause if they chase me either their car falls apart or they have to stop for gas. :p

and to loafer650, :laugh:

[TurboNut33]

What does "FTW" mean please?

And you shouldn't knock domestics....some of them are very good cars!

[staticorex]

For the win.

And yes, many domestics are good cars. But I still like bashing on them. :p

[TurboNut33]

Thank you--I've always wondered that.