Engine Heads up on the stainless headers on ebay

I didn't know that advice and help would come back and bite me in the ass. I'm not nit picking at anyone. I'm just stating the obvious and offering my experience.

thanks for the heads up. that sucks you got a defective header. damn those no name brands! i agree with rollatuner as far as the research goes, but i think what he meant was that sellers on ebay are saying that 9th gen headers will fit 8th gens because 8ths and 9ths both use the izzy motor. back in 2004 my brother bought a header off ebay for the 2001 corolla, and it didn't fit. the ebay ad said it's for all 98-02 corolla! i'm finding out now that that specific header will fit the 9th gens 2003 and up. what sucks is that my brother sold that header at a garage sale, and my mom drives a 9th gen which can use a header! sorry for digressing, but my assumption is that when rollatuner read that your header wouldn't fit, there's a possibility it fits the 9th gen corolla. i might be wrong, but if i'm right, his word syntax was laxly typed; it happens a lot here.

Heads up on the stainless headers on ebay

Hey just a heads up for people thinking of getting the stainless headers with the long primary design. Yeah haha they don't quite fit. they'll go in but it leaves you with 1/8" between the lower crossmember. also the flange is huge about 1/2" so you will need longer studs, and the "donut" connector to the exhaust is a little bigger then stock so the clamp won't fit all the way leaving a small exhaust leak. That and the seller probably doesn't know the corolla so well because he includes 3 bolts that don't go anywhere...

if you aren't sure what i'm talking about then this is the header.

<A HREF="http://cgi.ebay.com/ebaymotors/STAINLESS-HEADER-TOYOTA-COROLLA-1-8L-98-99-00-01-02-NEW_W0QQitemZ270169484854QQihZ017QQcategoryZ133195 QQssPageNameZWDVWQQrdZ1QQcmdZViewItem">Stainless Header on Ebay</A>

nice, dont trust that...wish they still had forza

You should have done some research and asked questions before you bought that. Many that will fit the 9th will not fit the 8th gens. Furthermore, the header has no brand. I emailed this seller a while back asking what brand it was or who made it. No answer. The only headers that will fit are the Forza/OBX and MimoUSA.

whoa... research was done buddy boy... isn't the 9th gen the 2002-2007 corollas who said anything about those corollas???... there aren't any forza headers out there anymore and the mimousa doesn't have a correct picture available and no one has that to tell me what it looks like. so i got these. seriously man calm down i'm just letting people actually know the problems and not just speculating in my computer chair.

He has done his research. So I think YOU are the one who needs to calm down. He knows what he's talking about.

seriously guys... this was only a heads up about what they are like... i never said he didn't do research did i? come on now, you guys are putting words in my mouth. i didn't say these were for the 9th gen because the 9th gen chassis doesn't even come close to a prizm's chassis only the 8th gen does. further more i did ask about these headers and a comparison between the forza and the mimousa, and never got a good answer. people say forza is the best but i'm not looking for high end power. i went with the long primaries because i wanted the torque curve to shift to the low end. i've called burns stainless and discussed the types of headers with the tech guy and he said that these stainless would give me what i want for my car. so this is again a heads up about what you'll get when you get these headers.

you're getting overly excited over a simple statement he made - therefore, calm down.

when one buys a header (and yes, your car only has one) on ebay for a Corolla or any other compact car, one is risking it not fitting...it's just one of those things you have to deal with (or save up and buy from a reputable company).

So did you get it to work ok ? What was the performance outcome if any ?

it'll fit just with clearance issues. the exhaust leak can be fixed buy just tightening and loosening the clamp until the gasket takes up the slack (i used a brand new one felpro 61116).

The stock exhaust manifold nuts had to be replaced with stainless m8x1.25 nuts and washers to beable to hold the header down with 36 ft-lbs of torque




In order for the header to fit all the heat shielding had to be removed and sadly the cv-axle shield couldn't go back on.



So here's the gap problems, if you look above the header there is little room between the rack and pinion and the header. so i had to put a some heat shielding there. and below the header i had to put a heat shield cushion to stop the rattling. it has more room toward the rear but toward the front of the collector there is barely any room between it and the cross member.



just a shot of the clamp. can't really show how big the header donut thing is without taking it off but that's too big of a pain to do again just for a picture.

Nice pics. Thanks very much I can deal with those issues. If there was any increase in anything. Did you notice any power or torque difference ?

Do you have an exhaust leak?

Welding the header to the catback would stop the leak but its not a good way to do it. I'd recommend trying a custom flange join from the header to the catback. Removable joins = more options, if work is needed later down the line, like putting in new tubing or a better cat.....

well i always wanted to go to the dyno, just didn't have enough mods to give it a try. that is until now. so sometime soon i'll be going to the dyno and doing a pull and see what results i get. since most of us have close to the same mods i figure you guys can determine if there's a difference. i'll post all my mods and specs along with my dyno results when i get it; hopefully within the next 2 weeks (money doesn't grow on trees ).

Looks good to me. If we can't find the forza one, then this one is our solution.
And it's really cheap too. I don't mind to have a custom flange to fix the leak problem.
I gonna get one too, I love long runner design.
Any check engine light so far?

Hey engineered_prizm, any news about the header?
Got any CEL? How about exhaust leak?

Just received mine today. Looks nice, really well built. Need a few more parts for exhaust and turbo mods, then all will be installed.

WOW. I knew someone would catch that. LOL... All is winter project, which is real shortly. Yes car is parked during winters. Here is your answer.

http://ststurbo.com/universal_system

Hmmm... I just read through the site and the testimonials. It looks promising. I might just follow in your footsteps, sir. hehe But before all that, the internals must be upgraded. I'm worried about the rods since they're so thin. I'm not sure what psi you can run safely on the stock corolla 1ZZFE. I know Vamp had a nasty incident a while back. And what about fuel management and injectors? I'm curious as to how your project is going to turn out. Keep us posted!

What I find interesting is the increase in mpg, the turbo acting as a muffler to quiet down the car even more, and the self efficient cooling.

It's been installed on a Matrix XRS. Pretty similar to a 1ZZFE.

Don't think you can increase your power out put and get better mileage... turbo means more air... more air means more fuel is needed for good combustion.

well here's how i see the heat being needed for a turbo.


PV=nRT right... all variables accept R( 0.08206 L*atm/(mol*K)). Ok so lets assume that since the amount of gas leaving the combustion chamber isn't going to change(i.e. the number of moles=n). Let's also assume that the exhaust piping doesn't change volume.

(P1*v)/(t1)=(p2*v)/(t2)

we can just divide out the v and we are left with

p1/t1=p2/t2

now since we want to compare pressure differences if t2<t1 (lets assume 30% cooler: T1=0.3T2)

P1/T1=P2/(0.3T2)

in order for this to be true. p2 also has to be 30% of p1.

Pressure is Force per Area.

either The force is greater for P1 or the area smaller for p1. but since the turbines would be the same the area is the same. so p1 is applying more force on the turbine.

Well turbo's have oil coolers to cool down the oil that is acting as a coolant for the bearing in the turbine. intercoolers cool the compacted air from the turbine to the compressor. since the volume decreases the pressure and temperature of the gas also increase. which has less oxygen density and thus less power to the wheels. there's no exhaust coolers because well you lose the force to power the turbine.

The sts site say, " On the reverse side, the remote mounted turbo with its cooler denser gasses, wouldn't spool up till say around 4000 rpms but once spooled up would make efficient power because it doesn't require hardly any backpressure to push the lower volume of gas through the larger 1" hole." Notice that it won't spool until 4000 rpm.... no power until 4000 rpm... not good for the street especially with auto.

another thing. dense air is harder to move because of the mass... f=ma... equal force applied on two different masses... one being higher then the other means the heavier one has less acceleration...

alright im done. if i'm wrong oh well i tried to follow the physics.