94-97 header will fit 90-93?

[Accrdwgnguy]

Generic aftermarket header is still half the price of a generic aftermarket replacement downpipe, why does everyone hate on them? Only issue I have had with the one on my GF's car is the block bracket snapped off, I just welded it back on and good to go!

[visualpoet]

I KNOW ITS KINDA LATE FOR ME TO POST THIS BUT THIS IS WHY IT WOULD NOT WORK

all F series engines 94+ have the ports spaced different.94+ use's (close port) design and the 90-93 uses an (even port)design

here Is a even port header -93 used



here is a close port header 94+

It helps if you read through the thread before posting. :

Not gonna fit, Bro.

View of exhaust ports from the front of the head:

90-93 F22Ax 0-0-0-0
94-97 F22Bx 0-00-0

I'm pretty sure the flange on the downpipe is also different.

It's not an opinion. It is a fact.

It's a generic design, not specifically engineered for any particular platform. It's just bent pipes, going on the theory that larger tubular primaries and a slightly larger collector will give some gains. True? Sure.

But the design is no different from any other "knockoff" company. They may be one of the good ones, akin to OBX and Megan Racing (and old guys like me remember when we all laughed at those brands as well...) But it's still a generic knockoff design.

Trust me. It takes a lot of time, money, and knowledge to properly engineer a header. That's why the ones that are actually engineered for a specific application cost so much more (Bisimoto, SMSP, HyTech, Mugen, etc...)


Now, am I saying one of their headers isn't worth the $160 that they charge? Certainly not. Some gains will be had, and all reviews I find seem to praise the build quality... so yeah, I'd say it's better than a $100 no-name cheapie.
One guy even dynoed his tC at 160whp with the header being the only mod (which, if that's accurate, and not an optimistic dyno or a lying owner) means there was a significant gain. Assuming the 160hp tC loses about 15% to drivetrain losses, that's about a 24whp gain! Sounds absurd to me, but I don't know how poorly the stock manifold flows on that car, so it's entirely possible.

For us... expect 5-7whp at best on a healthy engine. This, of course, depends on your other mods as well

Which year tC? The 2nd gen comes 180 hp, so 160 at the wheels with just a header is possible, but on a first gen, he's lying about something. Hell the damn thing only made about 200 hp with the TRD SC. The stock exhaust would negate most of the header gain.

[deevergote]

I didn't think to look... It seemed a bit fishy, but he had dyno charts, at least! I'll try to find it again.



thepowderblue, you clearly know a thing or two about these cars (though it's often difficult to understand you.) However, I can't help but notice that you seem to be going out of your way to dig up threads that have a topic that you can comment on... usually like this one, throwing out information that has already been said. It seems to me that you're in quite a hurry to get 30 posts... and believe me, when it becomes obvious to me, it becomes a much slower process for you!