Headers, 4-2-1 or 4-1 Options

[Killswitch]

What do you guys think is better for maximum flow. 4-2-1 Headers or 4-1 headers?

[Bitter]

depends on the runner lengths and and other factors, you cant just unilaterally say one is better than the other.

[Bigmeanbulldog55]

depends on the runner lengths and and other factors, you cant just unilaterally say one is better than the other.

True, but 4-2-1 is almost always better. That counts especially for our cars. But a longer length 4-1 would give better performance than a 4-2-1. Or if the quality of the 4-1 was higher than the 4-2-1. But if equal quality, the 4-2-1 is almost always better.

[creamed_corn]

depends on the runner lengths and and other factors, you cant just unilaterally say one is better than the other.

True, but 4-2-1 is almost always better. That counts especially for our cars. But a longer length 4-1 would give better performance than a 4-2-1. Or if the quality of the 4-1 was higher than the 4-2-1. But if equal quality, the 4-2-1 is almost always better.

Depends on where you want your power. 4-1's are usually better for High RPM gains... which would be pointless on an engine like a 5S-FE that has a head design that has no breath up top.

Plus there are so many other things that factor into it... but personally I'd go with a 4-2-1 setup on any american model celica.

Heck, dropping that extra 40 or so pounds off the nose of the car from that cast iron log manifold is worth it. Couple that with a battery relocation and the front of your celica will go from German Broad sword to Italian Sabre.

[FreddyTheOthaMea...]

Does anyone have any experience with 7afe headers?

[Bitter]

what do you want to know?

[FreddyTheOthaMea...]

Are the effects positive or negative? How much? What brand is good? Are there heat shield options for headers or is powder coating the best method? Would someone wanna buy it off me once im ready for my turbo/head swap setup? lol jk bout the last one

[Bitter]

better pull at the top of the power band
$100 shipped to my door
ebay
i wrapped mine with DEI heatwrap
im sure someone would buy them used, especially if they came wrapped.

[bindertch]

Are the effects positive or negative? How much? What brand is good? Are there heat shield options for headers or is powder coating the best method? Would someone wanna buy it off me once im ready for my turbo/head swap setup? lol jk bout the last one

You will definately get good gains if added to a cold air intake. I also have a wrapped header on mine with CAI. I have felt every step that I have taken from the CAI to header to wrapped header. It does the 7AFE good plus gets some attention. Also if you are up for it you could go muffler-less like Bitter or like me just put in a hi-flow cat and straight through muffler. As for brand of header there are some on eBay but they are all copies of a Corolla header and they have to be either bent on the bottom end or addapted to fit a Celica. I will warn you though do not get a crome one off of eBay because they are cheaply done and will rust quick. Get a stainless steel or a raw one and have it coated.

This post has been edited by bindertch: Sep 18, 2006 - 1:59 PM

[Bitter]

btw, the ebayheader is a clone of a bunch of others (which cost between $150 and $300) which looks alot like a 4age 20 valve stock header that ive seen once.

[FreddyTheOthaMea...]

Well right now where im sitting I have a SRI (that has a large duct leading from the outside to the filter element) and a 2.25 custom catback with a straight thru muffler so im pretty interested in a header now. looks like ebays gonna be one of my best bets... do you guys have a specific ebay seller to recommend? And how much was the wrap?

[Bitter]

i bought mine from always-bargains http://search.ebay.com/_W0QQfgtpZ1QQfrppZ2...waysQ2dbargains

theres cheaper sellers, and its probably the same part.