B16a+turbo+VAFC=WTF???
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Joined: Jul 2006
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From: Camanche, iowa, USA
B16a+turbo+VAFC=WTF???
posted this on the CRX board not sure why but ill try here sorry
hello new to this board so hello all.
my firend just got his turbonetic turbo kit installed and we have had nothing but problems with it. the shop that installed the kit gave up on the jerry rigged AUX injector set up that came with the kit, and opted for bigger injectors (440cc) and a VAFC2 but it still dosnt run right? the car constantly has the A/F gauge pegged on rich unless off throttle?
the prob to start with was with the AUX injector set up the car ran way rich at idle and off boost and way way lean on boost. def not good. so we go the bigger injectors removed the injector controll computer and AUX injectors and installed the vafc to have the shop tune it but now the car is way rich?
heres the web site with his kit http://www.turbokits.com/crx_turbo_kits.html its the second one down and like stated before we have VAFC2 and 440cc ijectors and he got the walboro fule pump i think 255lph not sure though.
at the moment the car pulls hard to about 6k then drops on its face with the A/F pegged on the gauge to rich the hole time anyone got a idea whats going on? the dyno shop said the they leaned it out as far as the VAFC would let them??
misc info
stock JDM B16A 8# of boost peak
stock fule system + fule pump
plugs new OEM replacement
stock ignition+MSD boost retard
hello new to this board so hello all.
my firend just got his turbonetic turbo kit installed and we have had nothing but problems with it. the shop that installed the kit gave up on the jerry rigged AUX injector set up that came with the kit, and opted for bigger injectors (440cc) and a VAFC2 but it still dosnt run right? the car constantly has the A/F gauge pegged on rich unless off throttle?
the prob to start with was with the AUX injector set up the car ran way rich at idle and off boost and way way lean on boost. def not good. so we go the bigger injectors removed the injector controll computer and AUX injectors and installed the vafc to have the shop tune it but now the car is way rich?
heres the web site with his kit http://www.turbokits.com/crx_turbo_kits.html its the second one down and like stated before we have VAFC2 and 440cc ijectors and he got the walboro fule pump i think 255lph not sure though.
at the moment the car pulls hard to about 6k then drops on its face with the A/F pegged on the gauge to rich the hole time anyone got a idea whats going on? the dyno shop said the they leaned it out as far as the VAFC would let them??
misc info
stock JDM B16A 8# of boost peak
stock fule system + fule pump
plugs new OEM replacement
stock ignition+MSD boost retard
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Joined: Aug 2004
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From: Mechanicsville VA
Re: B16a+turbo+VAFC=WTF??? (zodman)
What is it with people not getting their car tuned corrctly lately? 
here is something to read, I think you will be better of not driving the car until you get it somewhat tuned.
Never drive a brand new motor around UN-TUNED. Ever. When you spend several thousand dollars on that brand new motor, you want it to last right? To make it last one thing that is key is that you get the proper air/fuel ratio right away when you start up the motor so that it can drive. If you fully built a motor and didn’t have a wideband on it when you started it up you risk the following problems:
a. Too rich will put too much fuel down past the rings, and fuel is a cleaner…it will clean the bores and that’s not good, because you want the cylinders to have oil in them. Without oil, the pistons will scuff the cylinder walls and you’re going to be burning oil sooner than later. It could happen in the first MILE you drive the car. You want to drive it around in a parameter of say 13:1 to 15:1, but ideally 14.7:1 if you can. 13:1 won’t hurt it, you’ll just get slightly worse gas mileage.
b. The second condition is the worst, and that’s running too lean when you first start it up and drive it. Lean is hands down the worst, because even at narrow, light throttle you’re going to get excessive heat and cause piston expansion. If the piston expands even one thousands of an inch too much, your block is done, and your cylinder walls are scuffed, pistons are scuffed, and you’re burning lots of oil again. This can happen in one SINGLE dyno pass. Or just driving 2 miles to the dyno.
You might have heard of shops, that have charged about $16,000 for a fully built motor, and then they go out and drive the car around for 750 miles to break it in on a fully un-tuned motor. That is beyond stupid people. You see a shop doing that, you silently walk the other way, and don’t go back until they change their ways. You buy a brand new car and you drive it off the lot. That motor has about 5 miles on it or so. Most people get on it right away, such as me. Does that motor ever have any problems? Not that I have ever seen, or heard! You want to know why? Because its already fully tuned when you pick it up.
here is something to read, I think you will be better of not driving the car until you get it somewhat tuned. Never drive a brand new motor around UN-TUNED. Ever. When you spend several thousand dollars on that brand new motor, you want it to last right? To make it last one thing that is key is that you get the proper air/fuel ratio right away when you start up the motor so that it can drive. If you fully built a motor and didn’t have a wideband on it when you started it up you risk the following problems:
a. Too rich will put too much fuel down past the rings, and fuel is a cleaner…it will clean the bores and that’s not good, because you want the cylinders to have oil in them. Without oil, the pistons will scuff the cylinder walls and you’re going to be burning oil sooner than later. It could happen in the first MILE you drive the car. You want to drive it around in a parameter of say 13:1 to 15:1, but ideally 14.7:1 if you can. 13:1 won’t hurt it, you’ll just get slightly worse gas mileage.
b. The second condition is the worst, and that’s running too lean when you first start it up and drive it. Lean is hands down the worst, because even at narrow, light throttle you’re going to get excessive heat and cause piston expansion. If the piston expands even one thousands of an inch too much, your block is done, and your cylinder walls are scuffed, pistons are scuffed, and you’re burning lots of oil again. This can happen in one SINGLE dyno pass. Or just driving 2 miles to the dyno.
You might have heard of shops, that have charged about $16,000 for a fully built motor, and then they go out and drive the car around for 750 miles to break it in on a fully un-tuned motor. That is beyond stupid people. You see a shop doing that, you silently walk the other way, and don’t go back until they change their ways. You buy a brand new car and you drive it off the lot. That motor has about 5 miles on it or so. Most people get on it right away, such as me. Does that motor ever have any problems? Not that I have ever seen, or heard! You want to know why? Because its already fully tuned when you pick it up.
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Joined: Jul 2004
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From: Spork
Re: B16a+turbo+VAFC=WTF??? (BoostedEG6)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedEG6 »</TD></TR><TR><TD CLASS="quote">You buy a brand new car and you drive it off the lot. That motor has about 5 miles on it or so. Most people get on it right away, such as me. Does that motor ever have any problems? Not that I have ever seen, or heard! You want to know why? Because its already fully tuned when you pick it up. </TD></TR></TABLE>
thats only half true, I work at a mercedes dealership and your not supposed to take our AMG cars past 3,500-4,000 rpm's for the first 3,000 miles.......maybe thats just a precaution, but thats what the sticker says in the window.
Modified by itslogics at 2:51 PM 7/28/2006
thats only half true, I work at a mercedes dealership and your not supposed to take our AMG cars past 3,500-4,000 rpm's for the first 3,000 miles.......maybe thats just a precaution, but thats what the sticker says in the window.
Modified by itslogics at 2:51 PM 7/28/2006
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Joined: Dec 2005
Posts: 363
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From: rockford, IL, USA
crome, uberdata... both free.. all you need is a good tuner and youre good to go... hell their are even people out there that do really good street tunes if youre low on cash to take it to a place with a dyno... just my 2 cents..
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