HEADERS : 1 3/4 vs. 1 7/8
06-11-2013, 05:16 PM
#61
Intermediate
Member Since: May 2013
Location: manchester NH
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I'm not going to start a fight. But I have to say this, how much of a flow restriction do you honestly believe could have been caused by that change in piping? Something is wrong in that dyno you showed, I've built a ton of these cars, and most of the time just bought whatever headers I could find used.....meaning I've tried a bunch of different sizes and never noticed much of a difference HP wise.
At the end of the day, we could split hairs, but it is fairly common knowledge that in FI applications, that the addition of headers is often not a critical factor , let alone the size of them. has a fairly small affect on the power the car makes. Jump on the zr1 forum and see what kind of gains they are picking up with headers......
At the end of the day, we could split hairs, but it is fairly common knowledge that in FI applications, that the addition of headers is often not a critical factor , let alone the size of them. has a fairly small affect on the power the car makes. Jump on the zr1 forum and see what kind of gains they are picking up with headers......
06-11-2013, 05:48 PM
#62
The true answer is...what is best for one person, is not always best for another. For anyone who is considering doing a build and trying to decide what size headers to use, I feel the best thing to do is contact the companies you are considering working with and outlining your build to them. This way, we can determine what is best for you and your application.
06-11-2013, 05:51 PM
#63
After reading through all of the posts...I feel compelled to post this dyno. This was performed by one of the forum vendors.....not by us...and this is a vendor I know you guys all respect when it comes to making power:
This is for a stock application, and take it for what its worth
This is for a stock application, and take it for what its worth
06-11-2013, 11:03 PM
#64
Team Owner
I'm not going to start a fight. But I have to say this, how much of a flow restriction do you honestly believe could have been caused by that change in piping? Something is wrong in that dyno you showed, I've built a ton of these cars, and most of the time just bought whatever headers I could find used.....meaning I've tried a bunch of different sizes and never noticed much of a difference HP wise.
At the end of the day, we could split hairs, but it is fairly common knowledge that in FI applications, that the addition of headers is often not a critical factor , let alone the size of them. has a fairly small affect on the power the car makes. Jump on the zr1 forum and see what kind of gains they are picking up with headers......
At the end of the day, we could split hairs, but it is fairly common knowledge that in FI applications, that the addition of headers is often not a critical factor , let alone the size of them. has a fairly small affect on the power the car makes. Jump on the zr1 forum and see what kind of gains they are picking up with headers......
Bunch of different sizes??? What sizes are there except for 1 7/8 and 1 3/4. Plus if you think about it 2 1/2 is too small for the x-pipe
Headers is a nice addition to FI cars! Must be because no one adds FI without headers. 
