I just bought a 95 gsr, I don't know anything about iab's. From what I've read vtec suppose to kick in at 4400 and iab' at 5700? Well I can hear and feel the car get louder and pull at 6k. I don't know if that is vtec or the iab. So what is my gsr suppose to be doing? What is the stock ecu suppose to be stamped with?

Another question I have is if I get a skunk2 manifold there will be no iab's anymore right? So then I should only feel/hear vtec kicking in? Also is there an advantage to having iab?

I'm a noob to gsr's.

 

you might need some more of this.


jk man

you should feel and hear something before 6k, VTEC is supposed to come on before that. it sounds to me like what you're hearing/feeling is the secondaries (iab's), but I won't say too much more than that because I'm no vtec guru.

 

lmao you shouldnt have said j/k i wanted to see how many ppl would post up asking where you can buy some vtec fluid

 

I'm pretty sure some would ask that. But nope I don't hear anything til 6k. Unless my tach is off. So if I put a skunk2 manifold in will I lose power since the ecu will be looking for the iab's?


Modified by 90teg at 1:35 AM 1/5/2006

 

first of all, the secondary butterflies are not your idle air bypass.

now that's out of the way....vtec is fairly quiet on a stock gsr. because it is tuned correctly, its a smooth transition, not a jump that pushes you in your seat.

and yes, if you just get a skunk2 manifold, nothing else, and do not tune, you will lose some low end.

 

your ecu should be p72..if you run skunk2 manifold you will lose torque in low end but gain high end.......

 

if you change to a single runner manifold your going to have to change your vtec x-over to a higher setting besides other tuning bits

 

Why?

 

how the manifold is designed on a gsr is that it has the IAB valves closed before 5750 rpm's to allow a faster more tunned air flow- more torque

when the IAB valves open up (the kick you hear and feel) there is more passage for air allowing more high end hp

the skunk2 IM is just for high end 7-10k rpm's power gain, you will feel a big low end power loss, and make a few more hp from 7k to your redline..... not worth it unless you are upgrading everything else to rev up that high

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rkrone &raquo;</TD></TR><TR><TD CLASS="quote">

the skunk2 IM is just for high end 7-10k rpm's power gain, you will feel a big low end power loss, and make a few more hp from 7k to your redline..... not worth it unless you are upgrading everything else to rev up that high</TD></TR></TABLE>

this man speaks the truth...stock gsr = no no to skunk 2 (and YES your bolt on gsr is what i call stock)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rkrone &raquo;</TD></TR><TR><TD CLASS="quote">how the manifold is designed on a gsr is that it has the IAB valves closed before 5750 rpm's to allow a faster more tunned air flow- more torque

when the IAB valves open up (the kick you hear and feel) there is more passage for air allowing more high end hp

the skunk2 IM is just for high end 7-10k rpm's power gain, you will feel a big low end power loss, and make a few more hp from 7k to your redline..... not worth it unless you are upgrading everything else to rev up that high</TD></TR></TABLE>

So this apply's to only to a stock gsr then. So lets say if you have a valve train that can take 9k rpm's would it even be worth it to change the manifold? Lets say if I put in skunk2 pro 2's, I'll still lose the low end power correct?

 

when you start revving higher...yes the skunk2 would be suitable

 

I'm not planning on going beyond 8500. I'm planning on putting in buddy club 3 or 4's when spring comes in. So since skunk 2 is for 7-10, is there a noticable power difference? I don't see to many all motor gsr, I mostly see b16's and itr's. This is why I ask. Also would having a gsr manifold make it harder or easier to tune?

 

how you know where youll rev to??? is that where the bc's stop making power??? if they drop off at 8500 well i dont think the skunk2 would be a necessity

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSvtec03 &raquo;</TD></TR><TR><TD CLASS="quote">first of all, the secondary butterflies are not your idle air bypass.</TD></TR></TABLE>

Idle air bypass? Get it right: secondary butterflies = IAB = Intake Air Bypass

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lVlemphizStylez &raquo;</TD></TR><TR><TD CLASS="quote">how you know where youll rev to??? is that where the bc's stop making power??? if they drop off at 8500 well i dont think the skunk2 would be a necessity</TD></TR></TABLE>

I meant that is where I (personnaly) will shut it down. I'm not exactly sure where the bc's stop making power. When I dyno tune it of course I'll see where it stops making power. I'm just saying that even if it makes power after 8500 I will not be going above it. This is my DD and I rather keep it below that rpm range. Unless I'm at the track.

 

the single runner manifold will complement bigger cams nicely.