What the difference (performance & sound) between the "streetable" & "road race" head
#1
What the difference (performance & sound) between the "streetable" & "road race" head
Hey Fellow 7-heads! I am considering a header for a street 13B 6 port, and been looking at the Racing Beat versions. Does anyone know what is the difference between the "streetable" & "road race" headers? I'm looking for difference in performance & the sound/volume of the exhaust.
Thanks!
Thanks!
#3
Too old to act my age
Join Date: Feb 2005
Location: Tulsa, Ok.
Posts: 3,164
Likes: 0
Received 0 Likes
on
0 Posts
The street setup collects at the end of the header, while the roadrace setup collects at the rear axle. Either will help with performance, but the RR setup will give a little more, especially in the upper RPM range. Neither of these systems are perfect, but they are a far cry better than stock.
The street setup requires reusing or acquiring a new mid pipe, while the RR system is complete, from engine to rear bumper.
Sound wise, I believe the RR system is louder than the street system. Both are louder than stock. They're both quieter than my current system, though. (RB street header and a single straight thru stainless muffler)
The street setup requires reusing or acquiring a new mid pipe, while the RR system is complete, from engine to rear bumper.
Sound wise, I believe the RR system is louder than the street system. Both are louder than stock. They're both quieter than my current system, though. (RB street header and a single straight thru stainless muffler)
#6
Too old to act my age
Join Date: Feb 2005
Location: Tulsa, Ok.
Posts: 3,164
Likes: 0
Received 0 Likes
on
0 Posts
I have an RB presilencer to fit, but I haven't installed it yet, due to the low ground clearence of my car. New suspension is sitting in my living room, will be installed soon, as will the presilencer.
Trending Topics
#8
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,989
Received 2,688 Likes
on
1,903 Posts
the street port system is deeper pitched, and more pulsey, at low rpms
#11
Rotoholic Moderookie
iTrader: (4)
I've got the RB "Street Port" system from engine to muffler tip. It's an awesome system. It's already been covered but the only difference between the two headers is that one collects and one does not. So your purchase choice should just be based on whether you're building a single or dual pipe system.
You're right that without the pre-silencer *and* the muffler, any exhaust system on a rotary will sound like crap. It's the combination of the presilencer and the Power Pulse muffler that both removes the tinny sound and creates a more bassy note in the exhaust.
I find the Street Port exhaust to be quite good on the volume level. Cruising around town it doesn't turn people's heads (translation: cops ignore me) but when I open it up and crank it into my Sterling's secondaries and drive it to redline, the exhaust lets out enough that it sounds powerfully awesome. I haven't noticed an appreciable difference in sound between the Single and the Street Port exhaust systems from RB, though there's definitely a performance difference, but it's probably only really measurable on the dyno. (Feels good to the butt-dyno though)
Jon
You're right that without the pre-silencer *and* the muffler, any exhaust system on a rotary will sound like crap. It's the combination of the presilencer and the Power Pulse muffler that both removes the tinny sound and creates a more bassy note in the exhaust.
I find the Street Port exhaust to be quite good on the volume level. Cruising around town it doesn't turn people's heads (translation: cops ignore me) but when I open it up and crank it into my Sterling's secondaries and drive it to redline, the exhaust lets out enough that it sounds powerfully awesome. I haven't noticed an appreciable difference in sound between the Single and the Street Port exhaust systems from RB, though there's definitely a performance difference, but it's probably only really measurable on the dyno. (Feels good to the butt-dyno though)
Jon
Thread
Thread Starter
Forum
Replies
Last Post
4sfeedit
3rd Generation Specific (1993-2002)
10
08-16-15 01:42 PM