is it me or is it natural for alot of gsr's not to really "hear vtec" kick in..

i'm just wondering if that is a problem or just natural with gsrs... i'm not ssure
so im asking what you guys if its normal or if i can fix this problem.

 

sometimes i hear mine and sometimes i dont. Especially now since im turbo

 

you should if u have an intake and remember its a "2 stage" vtec

 

Im sorry, a 2 stage vtec? Please explain...

It's been discussed several times before - what you're hearing on a GSR isnt so much vtec but the secondary butterflies opening up.

If your car is fairly stock, you vtec should be smooth and somewhat quiet. It isnt until you get into heavy modifications that the vtec engagement becomes louder and more noticable. Mainly because of the aggressive secondary camshaft lobes.

 

OMG terrible info except for Carma. As he said you shouldn't notice VTEC on stock or mild cams.

 

Seriously??? No...

The vtec on a GSR kicks in at 4400 rpm. The secondary intake runners open at around 6000 rpm. That is what you should hear, not so much your vtec if your motor is stock.

 

If your car is stock, you probably wont hear much of anything.
With intake/exhaust, you should here the vtec crossover through the exhaust @ 4400 rpms and the im butterflys opening through the intake @ 6500 rpms.

 

My GSR has bolt ons and I can really feel the VTEC pop when I hit 6k. Even my cousin who drives an AP1 said it hits harder in my car than his.

 

Stock B18C1 VTEC at 4400 RPM at WOT. IAB at ~5750 RPM.

 

If you disconnect the secondaries, Vtec will open louder... You will loose some low end torque but you will gain top end power.. But if you don't have at least an intake and exhaust your not going to hear it...

 

best to change im to single stage runner

 

LOL

 

no such thing 2 stage first at about 4.5k when smashing and 5k when not smashing, you have vtec. After 6k you have the butterfly's open in your intake mani.

 

yep yep Kinda sounds like you got a skunk2 mani sounds really good but no low end power

 

I deleted the incorrectly labeled picture of a GSR IM.

 

Yea pretty much, except you save $250-300 dollars lol....

 

And only lose power.

 

Just slap on an intake and you'll hear it.

 

Why dont you just buy a type r style IM.

 

yep another good point so skunk2 just has bigger ports...right?

 

because type-r dont fit a gsr it will fit b16 and I think b20

 

there is such thing as 3 stage tho haha on the 3-stage VTEC D15B engine is used on the current EK-series JDM Civic/Civic Ferio VTi/Vi

http://asia.vtec.net/spfeature/vtecimpl/vtec1.html

 

Sorry that was off topic. for most motors when the VTEC hits hard it either means that it has modifications done without proper tuning to smooth out the crossover or you are running very aggressive cams that makes the crossover between your lobes very drastic.

Damn my VTEC kicks hard dogg!!!

 

i have ctr cams in my gsr
have more power all round now
vtec is little alot more louder than gsr cams

 

Mine gained a lot