most hp from bolt ons

[rice]

what is the most hp can you get from just bolt-ons? and what are all the bolt-ons out there available for corollas?

[KnightX_AE86]

the most hp from a bolt-on??? TURBO!!!!and for wut u can do wit bolt ons is how much money u got... everything is bolted on to your motor... even inside has bolts holdin things u can change =\

[Flashmn]

I was just wondering if a turbo was considered a bolt on

[rice]

hey guys, i meant all performance bolt-ons horsepower wise, and not turbo or s/c anybody have any ideas?? how much hp these corollas can gain from bolt-ons? and what the bolt-ons would be??

[Flashmn]

Do those other bolt ons even give power?

[sleepie]

As far as I know.. intake and exhaust does nothing for hp. Just better sound? Unless you're running with turbo n such..3inch exhaust helps the air flow better.. correct me if im wrong im trying to learn =]

[Liter]

Yup you are wrong. New intake lets more air flow in, if is a cold air intake then the air its self is colder. Cold are=more denser then hot air=more oxygen to burn in the engine. Exhaust can increase tehn amount and speed of which the fumes leave the engine. Might not be much hp but it does help.

[Flashmn]

Guess what, the air isnt cold enough to cause a significant horsepower increase, secondly, the intake and exhaust arent the bottlenecks, it usually is the head. So exhaust and intake installations doesnt do much than add sound and cause a dent in your wallet, because the engine wont flow any more than it does stock.

[sleepie]

So I was somewhat right! haha.. much to learn much to learn.

[Flashmn]

actually the stock intake and exhaust arent that restrictive especially on newer models, you might be surprised if you had them tested.

[toyotaspeed90]

Originally Posted by Flashmn

Guess what, the air isnt cold enough to cause a significant horsepower increase, secondly, the intake and exhaust arent the bottlenecks, it usually is the head. So exhaust and intake installations doesnt do much than add sound and cause a dent in your wallet, because the engine wont flow any more than it does stock.

if you have an F/FE head this could potentially be true.... 4ag heads are yamaha designed (although there's a ton of machining slag in the oil passages that could be cleaned up)... the intake/air are incredibly open stock... and are limited by the intake manifold, intake tubing, and the factory exhaust.

although i took them off for driveability issues (and lack of an engine management system on the ae92 for now)... when i had the 20V itb's on the smallport 4age there was a large increase in low end torque (i know, quite opposite of what you would expect) and had MUCH better revving.....

"bolt ons".... all depends on who you talk to..... i consider anything that leaves the motor stock internally to be a bolt on...... ie, turbo/sc.... but the amount of power you can gain with those IS limited to what the motor itself can handle.

[Flashmn]

if you have an F/FE head this could potentially be true.... 4ag heads are yamaha designed (although there's a ton of machining slag in the oil passages that could be cleaned up)... the intake/air are incredibly open stock... and are limited by the intake manifold, intake tubing, and the factory exhaust.

Yeah, but it depends on what you compare it with, a 4A-GE vs B16 from a honda will show that the honda flows alot better, even other engines. 4A-GE isnt that special, even if it was designed by yamaha, which most of toyotas "perfomance" engines are.

[toyotaspeed90]

lets see here.... b16a1 came out in japan in what, 1990 or so? the b16a2 wasn't available in the US until like 1994 or something like that in the del sol vtec....

the 4age was designed in early 1983.......

and i would be curious to see flowbench tests regardless

[saigons son]

an exhaust and intake pretty much add a percentage of hp. thats y u see big gains like 30 hp when flowmasters are put on mustangs. bigger engine= more to be unleashed from w. pipes

[Flashmn]

wrong, its just that american cars have shitty pipes