***update*** a stupid question about vtec and turbo's
09-11-2004, 01:35 PM
#1
1.5 BAR
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Join Date: May 2003
Posts: 808
***update*** a stupid question about vtec and turbo's
i searched around and could find anything on this:
i have a 91 hatch with a b16 and a turbo kit. 2.5" dp-2.25" exhaust system going threw an OBX fart can :P. when i was running a open dp the car sounded really good and was loud (duh). ok i hooked up the exhaust (was very surprized at how quiet this thing is now) and now i cant hear vtec engaging
. i was just woundering if u guys can still hear urs with the turbo on and full exhaust. i dont care if i can hear it just woundering if it is still engaging.
i have a 91 hatch with a b16 and a turbo kit. 2.5" dp-2.25" exhaust system going threw an OBX fart can :P. when i was running a open dp the car sounded really good and was loud (duh). ok i hooked up the exhaust (was very surprized at how quiet this thing is now) and now i cant hear vtec engaging
. i was just woundering if u guys can still hear urs with the turbo on and full exhaust. i dont care if i can hear it just woundering if it is still engaging.
09-11-2004, 01:44 PM
#2
0.0 BAR
Join Date: Nov 2003
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Re: a stupid question about vtec and turbo's
The turbo is acually quites down the exhast acts likes like a resonator. Now is it acually quite or are you just used to really loud? 2.25 is kinda small for a turbo b16 I wont run anything under 2.5 for a d and 3 inch for a b16 especally if its crush bend 
09-11-2004, 01:57 PM
#3
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Re: a stupid question about vtec and turbo's
yeah its crush bent,it was just what was on the car and i dont have money to redo it right now 
. i kinda like it now the way it is (the quietness) all u can hear is the turbo spooling up and then the wg opening. it just didnt pull very good in 4th now, and thats why i thought maybe i had no vtec,could be the exhaust tho, im only at 5.5 psi tho 
. i kinda like it now the way it is (the quietness) all u can hear is the turbo spooling up and then the wg opening. it just didnt pull very good in 4th now, and thats why i thought maybe i had no vtec,could be the exhaust tho, im only at 5.5 psi tho
09-11-2004, 02:06 PM
#4
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Re: a stupid question about vtec and turbo's
or maybe i have a crappy turbo that drops off up high, maybe the turbo just isnt efficient(sp) at higher rpms 
its a t3 48/60 dont know what trim the wheel is but its from down2turbo on ebay,and he was selling this turbo as a super 60 and people have measured the wheel and said that it isnt. so i dont know
its a t3 48/60 dont know what trim the wheel is but its from down2turbo on ebay,and he was selling this turbo as a super 60 and people have measured the wheel and said that it isnt. so i dont know
09-11-2004, 10:10 PM
#7
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Join Date: Apr 2003
Posts: 2,612
Re: a stupid question about vtec and turbo's
i bought a 2 1/2" mandrel exhaust, no catalytic, straight thru muffler at a muffler shop bout 2 months ago thinking it was the best thing in the world. it's way louder than the stock one. car is a 99'si b16 turbo. is 2 1/2" good? i read at turbod16.com that 3" would be for over 300hp.
i'm just running 11psi
09-13-2004, 12:30 AM
#10
1.5 BAR
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Join Date: May 2003
Posts: 808
Re: **update** a stupid question about vtec and turbo's
ok i have been having a problem for sometime now with the temp guage,and i think that might be causing my prob... i watched it tonight and when u are climing in the rpms the guage will start to drop.and right when vtec is supposed to come on the guage just shoots down showing the car not to be warmed up. now ur car has to be at like somewhere arouind 80 deg. for vtec to operate(so i have heard). so if the guage is reading the car to be not warmed up = no vtec? or does the ecu read the sensor out on the motor(under the dist.) either way i think that sensor might be screwed up and causing my problem. any thoughts?
