Have any of you installed a cat-back exhaust and couldn't hear VTEC crossover at 4400 RPM anymore? Mainly refering to GSR's with basic bolt-on's such a I/E.

I used to have a GReddy EVO1 cat-back and I couldn't hear VTEC at all, I could only hear the secondaries open up at 5800 RPM. I currently have a Tanabe SRM cat-back and VTEC crossover is very noticeable.

Does anyone have a GReddy EVO2 cat-back and are able to hear VTEC crossover? or have an RS*R exmag?

I don't really get to drive my GSR much, so every once in a while I will rev towards redline just to bring a smile to my face. Normally I don't rev past 4k in my GSR to save on gas.

 

I have a catback exhaust and cold air intake. I can hear the VTEC crossover at 4400, but its more noticeable and pronounced when the secondaries open up. When hitting the upper end of the RPM range, you can really hear VTEC opening up and engaging. However, I can still hear VTEC crank up at the 4400 rpm range.

Hope this helps...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MugenGSR2001 &raquo;</TD></TR><TR><TD CLASS="quote">I have a catback exhaust and cold air intake. I can hear the VTEC crossover at 4400, but its more noticeable and pronounced when the secondaries open up. When hitting the upper end of the RPM range, you can really hear VTEC opening up and engaging. However, I can still hear VTEC crank up at the 4400 rpm range.

Hope this helps...</TD></TR></TABLE>
Do you have the Tanabe Racing Medallion? Hyper Medallion? or Super Racing Medallion?

 

i had a greddy evo on mine with a test pipe it's very loud, even without a test pipe you should be able to hear it at 4400 I had tanabe racing medallion on my car at one time its not to bad with a cat but with a test pipe or high flow its to annoying when your on the highway it too loud.

 

I have a greddy evo2. (when i still had gsr intake manifold). I could slightly hear vtec cross over but it definitly was not as pronounced as the secondaries opening.

 

Well I have the same excaxt setup and I don't hear it till 5500 RPM.

 

I cant hear anything at 4400 RPM. All I hear are the secondaries. This is with I/H/C/E

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MugenGSR2001 &raquo;</TD></TR><TR><TD CLASS="quote">I have a catback exhaust and cold air intake. I can hear the VTEC crossover at 4400, but its more noticeable and pronounced when the secondaries open up. When hitting the upper end of the RPM range, you can really hear VTEC opening up and engaging. However, I can still hear VTEC crank up at the 4400 rpm range.

Hope this helps...</TD></TR></TABLE>

VTEC doesnt gradually open up and engage "more" in the higher RPM range, its open at 4400, and stays open.

If you want to hear your vtec more, to show off to your buds, go get some cams and listen to the music. Youll hear it then.

 

are the secondaries opened up from the beginning of vtec engaging? Or is it just in higher rpm's

 

I have a Tanabe Racing Medallion and You wouldn't notice the VTEC crossover if you weren't listening for it. It sounds like a small pop and then you notice the exhaust note change, only a little.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlackSage &raquo;</TD></TR><TR><TD CLASS="quote">I cant hear anything at 4400 RPM. All I hear are the secondaries. This is with I/H/C/E</TD></TR></TABLE>
What kind (name brand) of intake, header, exhaust?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slamdLScivic &raquo;</TD></TR><TR><TD CLASS="quote">are the secondaries opened up from the beginning of vtec engaging? Or is it just in higher rpm's</TD></TR></TABLE>
Secondaries open up at 5750 (basically 5800 RPM) and stays open throughout the high RPM band. VTEC engages at 4400 RPM on all stock GSR's and also continues throughout the high RPM band.

 

Vtec wasnt too noticeable with my exmag... but since the r cams went in i can hear it a little. The intake drowns it out though&lt;-LOUD

 

&lt;= Iceman Intake (i swap between SR and CA since it's 2 piece) and ITR b-pipe with Apexi N1 axle back. I can hear the noticeable change at 4400 but of course at 5800 it kicks ***

 

Most of the straight-through mufflers will make the VTEC crossover very pronounced. Beyond 5700 or so, the engine intake overpowers the exhaust (since the IAB opens the secondary intake runners).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SMZ GSR &raquo;</TD></TR><TR><TD CLASS="quote">&lt;= Iceman Intake (i swap between SR and CA since it's 2 piece) and ITR b-pipe with Apexi N1 axle back. I can hear the noticeable change at 4400 but of course at 5800 it kicks *** </TD></TR></TABLE>
I also have an Iceman intake, but right now it's converted to a short ram because of winter & snow.

 

i have the exmag + bolt ons & can't really hear vtec (4400) much at all.. secondaries (5750) are loud though!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HerDb8SiRGvtec &raquo;</TD></TR><TR><TD CLASS="quote">i have the same exhaust set-up, but once i hit between 55-5800 rpm you can really here my VTEC kick</TD></TR></TABLE>
Your hearing the secondary butterflys opening, not so much VTEC.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Calsonic &raquo;</TD></TR><TR><TD CLASS="quote">
Your hearing the secondary butterflys opening, not so much VTEC.</TD></TR></TABLE>

lol - not vtec at all. entirely different.

 

The secondary intake runners work with VTEC to give the car 3 distinct personalities.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlackSage &raquo;</TD></TR><TR><TD CLASS="quote">I cant hear anything at 4400 RPM. All I hear are the secondaries. This is with I/H/C/E</TD></TR></TABLE>

I have a comptech icebox, JDM ITR header, 2.5 inch cat and a greddy exhaust.

To the person that said 3 distinct personalities you must be VERY observant. As far as acceleration and sounds goes I cant tell the difference. My gsr has TWO sounds There is a full throttle sound before 5500 and a sound after 5500 RPM. Cant hear anything when the cam switches.

 

I need to post a GSR dyno vid for people to hear how loud VTEC crossover sounds at 4400 RPM. I'd post my dyno but you can see my license plate so I need to edit it out first.

 

With my setup it is very hard to hear VTEC open up at 4400, but I can notice it very slightly. My car sounds nice when the secondaries open up, VTEC is much more pronounced then.

 

I have the SRM tanabe...all hear this....3k....4400k.(pop)...5k...VTEC!!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Calsonic &raquo;</TD></TR><TR><TD CLASS="quote">I'd post my dyno but you can see my license plate so I need to edit it out first.</TD></TR></TABLE>

haha.. don't you have that insane security system (ie. razors, alarm, fuel kill, etc..)? i don't see why people block their license plates anyway..