Is a header a good upgrade?

[suprf1y]

None of the headers I've seen for these motors are great because they all fit the stock dimensions, but I don't think you would see a noticeable difference between any of them including the cheap ones on ebay

[thebarber]

Originally Posted by suprf1y

None of the headers I've seen for these motors are great because they all fit the stock dimensions, but I don't think you would see a noticeable difference between any of them including the cheap ones on ebay

Have you actually used one?

[tmontague]

Originally Posted by suprf1y

None of the headers I've seen for these motors are great because they all fit the stock dimensions, but I don't think you would see a noticeable difference between any of them including the cheap ones on ebay

True, the headers readily available are not going to produce large gains as you would see in shorty or long tube headers for a v8. The design is similar to oem and it jusrt improves on a few things and therefore changes the power band slightly.

Having run the DC header on my 1nz I can say that there was an improvement more so in the upper ranges of the powerband. It is worthwhile IMO due to the relatively low cost and ease of install, but it is not a large change. For that you would need to run a long tube header (such as that for the 2zr) which involves a much more complicated install ad the midpipe needs to be changed to accomodate this. Currently no company if fabricating a long tube header for the 1nz, although Yawsport out in Cali may potentially be willing to do it with a few changes from their 2zr header they are currently fabricating

[suprf1y]

Originally Posted by tmontague

True, the headers readily available are not going to produce large gains as you would see in shorty or long tube headers for a v8. The design is similar to oem and it jusrt improves on a few things and therefore changes the power band slightly.

Definitely.
For sure it's an upgrade, just not a big one due to the packaging constraints.

I'm going to see if I can modify one of the cheapies by cutting off the flange to extending the collector and taper it down from 2 1/4" to 2".