Anyone know of an easy way of squeezing 10+HP out of a stock manual xA? When I say stock I mean it hasn't been modified even by the performance parts Scion has. Also I'm not considering Turbo/SC's because I know what they can add.

Thx for any help possible

:no: Lots of speed decals. :P

Free flow Intake, header, exhaust should net at least 10 to the wheels.

Umm... maybe I'n not understanding your question, but hp doesn't change much from from the factory spec on a car that is "stock".

<sarcasm>
Perhaps you should be willing to add/modify SOMETHING if you would like 10 more hp.

Of course, if you do find a way to make 10 more horses come out, without putting anything in it at all, be sure to let Einstein's heirs know that you've broken the theory of relativity.
</sarcasm>

chrome dipstick...

Intake , Header , Cat back exhaust.

if you want more buy

iridiums , weapon r engine damper , lightweight pulley

I have the Denso Irridium plugs............no horspower gain... I also am skeptical about the engine damper......no one has shown any dyno tests proving their worth

1. Injen Cold Air intake
2. Strup or DC Sports header
3. Greddy, Borla, Strup, InVidia Axle-Back.

You add little more the turn the axle back into a cat back at your local muffler shop and BAM!!! 10 horsepower. And as mentioned above if you want litrle more like maybe 7-8 add:

1. Perrin or Unorthodox Pulley
2. Any Iridium Spark Plug with decent spark plug wires
3. Weapon-R Engine Damper (wont give power but will help balance the power you do have)

HotBox05 - Nail - Head

Though I would skip the iridiums.

Anyone know of an easy way of squeezing 10+HP out of a stock manual xA? When I say stock I mean it hasn't been modified even by the performance parts Scion has. Also I'm not considering Turbo/SC's because I know what they can add.

Thx for any help possible

Pour sugar in the gas!!! :D

worst case irids waste 36.00 shipped.

I have the Denso Irridium plugs............no horspower gain... I also am skeptical about the engine damper......no one has shown any dyno tests proving their worth

well i have the damper and i can guarrantee it helps out alot

I have the Denso Irridium plugs............no horspower gain... I also am skeptical about the engine damper......no one has shown any dyno tests proving their worth

well i have the damper and i can guarrantee it helps out alot
Sorry....but I am not buying until I see imperical evidence......kinda like buying a Tornado......until I see proven results I am gonna say it is heresay

worst case irids waste 36.00 shipped.
What brand?....Not Denso's for that money

By far, hands down, the best bang for the buck is a pulley kit from NST, www.NonStopTuning.com :)

worst case irids waste 36.00 shipped.
What brand?....Not Denso's for that money
ngk IX's.

ebay is the BOMB. lol

I have the Denso Irridium plugs............no horspower gain... I also am skeptical about the engine damper......no one has shown any dyno tests proving their worth

well i have the damper and i can guarrantee it helps out alot
Sorry....but I am not buying until I see imperical evidence......kinda like buying a Tornado......until I see proven results I am gonna say it is heresay
lets put it this way. I can no longer keep traction if i push it. whereas before i only lost traction here and there. now if i push it hard enough i can spin sooo much longer. is thata a benefit? no. buit i'm also pushing this motor to it's limits and with stock tires. put some nice sticky tires and a GOOD clutch unlike stock . and man oh man. hook up like a mofo.

hmmm.... would this damper help an auto??

hmmm.... would this damper help an auto??

Me to... I want to know if any of this stuff helps auto. Also, if the intake, pulley, exhaust headers, plugs, and all the other add ons can increase the power output why don't we ever see any proof of this with dyno comparison charts? I believe it's because the improvement gains are minimal. If we look historically at this displacement figure of 1.5 liters, and accomanying power output, it is obvious Toyota is getting good Horsepower out of this engine and minor mods just aren't going to make much of a difference. I'd love to see some links to contrary information and be proven wrong on this.

I have the Denso Irridium plugs............no horspower gain... I also am skeptical about the engine damper......no one has shown any dyno tests proving their worth

Which ones u have ???? I have IK20 ..... accelerations kind of improves......especially after the 3000rpm mark.

I have the Denso Irridium plugs............no horspower gain... I also am skeptical about the engine damper......no one has shown any dyno tests proving their worth

Which ones u have ???? I have IK20 ..... accelerations kind of improves......especially after the 3000rpm mark.
Thats them..no difference.....Intake made the most diference..exhaust very little... I really need to get a header...

worst case irids waste 36.00 shipped.
What brand?....Not Denso's for that money
ngk IX's.

ebay is the BOMB. lol
that's a deal I wonder how they are compared to the Denso's

I have the Denso Irridium plugs............no horspower gain... I also am skeptical about the engine damper......no one has shown any dyno tests proving their worth

well i have the damper and i can guarrantee it helps out alot
Sorry....but I am not buying until I see imperical evidence......kinda like buying a Tornado......until I see proven results I am gonna say it is heresay
lets put it this way. I can no longer keep traction if i push it. whereas before i only lost traction here and there. now if i push it hard enough i can spin sooo much longer. is thata a benefit? no. buit i'm also pushing this motor to it's limits and with stock tires. put some nice sticky tires and a GOOD clutch unlike stock . and man oh man. hook up like a mofo.
Interesting commentary....... I would still like to see evidence on a dyno....usually I could say your usually accurate when you state something

By far, hands down, the best bang for the buck is a pulley kit from NST, www.NonStopTuning.com :)

Seriously... is that all you ever come in these forums for? To pimp NST? I swear it is your posts that will keep me from ever owning something from NST.

Think I'll start shopping for a Perrin or Agency Power pulley for the wife's box.

hmmm.... would this damper help an auto??

Me to... I want to know if any of this stuff helps auto. Also, if the intake, pulley, exhaust headers, plugs, and all the other add ons can increase the power output why don't we ever see any proof of this with dyno comparison charts? I believe it's because the improvement gains are minimal. If we look historically at this displacement figure of 1.5 liters, and accomanying power output, it is obvious Toyota is getting good Horsepower out of this engine and minor mods just aren't going to make much of a difference. I'd love to see some links to contrary information and be proven wrong on this.

An engine damper will have the same effect regardless of transmission. This isn't exactly rocket science or some questionable new technology. Just look at how much your engine torques against its mounts when you rev it. That is energy wasted. Toyota has to find a balance that they find acceptable between how much of that torque is lost vs. how much engine vibration gets transmitted to the rest of the car. The damper is just keeping the engine from torqueing as much against the mounts which makes that saved energy travel down the powertrain like it should. One of the downsides of a damper is more vibration from the engine. It's a trade-off of performance vs. comfort.

I agree that Toyota has done a great job of engineering this vehicle. When I see a simple aftermarket part that adds a huge gain on other makes, it usually tells me that the OEM part was just really badly designed. But that doesn't mean they pushed everything to its performance limits, there's still that balance of factors regarding your target market. Although it is a huge thing here on SL, i'd wager that the majority of all Scion owners wouldn't want better performance if it meant a hit on economy or comfort.

Also, the fact that this engine is small means that it doesn't take much improvement to feel the difference. There isn't a magic mod, but each little improvement when added together does add up to something kinda magical, IMO (Dang, watch one episode of Run's House and I start spouting silly phrases...)

Because there can be variations in dyno runs on a car that hasn't had changes between runs, it can be hard to show actual gains especially in something with a small change. You could spend many hours and lots of $$$ to try to verify and then someone else that doesn't follow the same procedures may get a different outcome... And sometimes you can make your car run/work better without an HP change. A dmaper may help out more at low RPMs when the tires aren't moving and maybe they don't have to work as hard when they are but that wouldn't show up on the dyno. Well, it would, but nobody ever cares about anything but the peak HP but then don't even discuss the @ which is as important when talking about HP as it is in an email addy...

worst case irids waste 36.00 shipped.
What brand?....Not Denso's for that money
ngk IX's.

ebay is the BOMB. lol
that's a deal I wonder how they are compared to the Denso's

well denso. is probably a more reputable company it is used as oem. but then again so is ngk. i've used ngk wires before. and a few other odds and ends nice product. and unlike bosch platinums i've never had a problem with these.

on my supra i didn't see any ngk plugs so I had ngk wires and denso irids. i think even then for 6 plus I only payed like 70 shipped from ebay. actually i think it may have been right around 60 shipped. i dunno. retail is what 12.99 or 13.99 a plug?

yes $13.99 a plug..Japanese cars love NGK's I used to run them often including in a 300ZX that ran 21lbs. of boost

ok people, the spark plugs arent going to show an impressive gain, but they are going to help in the combustion phase. I have platinum ones on my car, and on my old car, what it did more than anything was help throttle response.
As for the engine dampner, i doubt it will show any improvements in torque or horsepower. What it will do is allow more of the power to reach the wheels. which in turn helps the car launch better. kinda like stickier tires. this yeild no improvement in power, but the tracition helps the car acceleratre faster.
as for the 10 horses, just start botling on parts, and see what you get

more power to the wheels means on a dyno you will have a horsepower and torque increase at the wheels ......

Three simple letters will answer the posters question:

I/H/E

Intake, Header, Exhaust.

Those are the first three mods you should do to squeeze a little more power out of the engine. Irridium spark plugs do nothing. Pulleys are questionable and can cause other problems. Engine dampener is not a bad idea, but it doesn't actually increase output per se.

Start with a CAI or good short ram intake, a header and a full exhaust system. That should get you close to 15 more horsepower. After that there isn't much more you can do with this motor short of forced induction.

Pulleys are questionable and can cause other problems.

Correction:

UNDERDRIVEN Pulleys can cause other problems. A stock diameter lightened pulley is not saddled with the same drawbacks as a smaller diameter pulley. The lightened pulleys simply reduce the drag on the motor by having a smaller rotating mass. There are no real negatives to lightened stock diameter pulleys.

hmmm.... would this damper help an auto??

Me to... I want to know if any of this stuff helps auto. Also, if the intake, pulley, exhaust headers, plugs, and all the other add ons can increase the power output why don't we ever see any proof of this with dyno comparison charts? I believe it's because the improvement gains are minimal. If we look historically at this displacement figure of 1.5 liters, and accomanying power output, it is obvious Toyota is getting good Horsepower out of this engine and minor mods just aren't going to make much of a difference. I'd love to see some links to contrary information and be proven wrong on this.

Look at the intake dyno's, there on a sticky, Thats proof enough that you will get your 10 HP for maybe about $500- $600 depending and the quality of the parts you buy.

Pulleys are questionable and can cause other problems.

Correction:

UNDERDRIVEN Pulleys can cause other problems. A stock diameter lightened pulley is not saddled with the same drawbacks as a smaller diameter pulley. The lightened pulleys simply reduce the drag on the motor by having a smaller rotating mass. There are no real negatives to lightened stock diameter pulleys.

I agree.

Sorry....but I am not buying until I see imperical evidence......kinda like buying a Tornado......until I see proven results I am gonna say it is heresay

You won't see any imperical evidence on the Dyno since the damper prevents wheel hop and improves lateral road grip. It's not something you can measure on a dyno, kind of like canards or ride adjustments. It does help.

Sorry....but I am not buying until I see imperical evidence......kinda like buying a Tornado......until I see proven results I am gonna say it is heresay

You won't see any imperical evidence on the Dyno since the damper prevents wheel hop and improves lateral road grip. It's not something you can measure on a dyno, kind of like canards or ride adjustments. It does help. it could change like 1 or 2 hp on dyno. bnut every dyno run will be different no matter what. hard to tell with such small increses. but yes it does work.

Sorry....but I am not buying until I see imperical evidence......kinda like buying a Tornado......until I see proven results I am gonna say it is heresay

You won't see any imperical evidence on the Dyno since the damper prevents wheel hop and improves lateral road grip. It's not something you can measure on a dyno, kind of like canards or ride adjustments. It does help.
exactly!...the thread was how to get an extra 10hp..it does enable you to gain any hp