Hey there, I have a 1993 B18a1 motor in a 1990 civic.. the motor has like 120k miles and I am about to boost it around 8psi... THe motor without turbo is still pretty strong, runs 15 flat 1/4 mile stock in my 90 civic... anyways, I'll be using an IhI RHB6 turbo, and 450cc injectors... and tuning with an s-afc... do i have a good chance of my motor handling the boost??

Thanks!

Mark

 

First of all why are you running the hack? it gets the job done (hell ive run it before) but i HATED it. Second of all....do a compression test thats the only way you will be able to tell. Hell a motor with 15k miles could have low compression and wont handle boost. Only a compression test/time will tell ....good luck.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicflnum1 &raquo;</TD></TR><TR><TD CLASS="quote">First of all why are you running the hack? it gets the job done (hell ive run it before) but i HATED it. </TD></TR></TABLE>

Why is the hack so bad, especially on a low boosting car? I run it on my b18 @ 12psi and it runs so damn nice. AFR's stay at 14:1 on close loop and 11.5-12 in open loop. Granted I've only been boosting for a couple weeks, but still it runs like a champ with no hickups, lean spots, or anything. Pulls just like any stock turbo car I've driven, nice and crisp

 

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

Why is the hack so bad, especially on a low boosting car? I run it on my b18 @ 12psi and it runs so damn nice. AFR's stay at 14:1 on close loop and 11.5-12 in open loop. Granted I've only been boosting for a couple weeks, but still it runs like a champ with no hickups, lean spots, or anything. Pulls just like any stock turbo car I've driven, nice and crisp</TD></TR></TABLE>

The reason i hate the hack so much is because you cant control timing like other EMS's and its not as safe. BTW if the AFC is tuned to tune you nicly in boost then its not gonna run aswell in vacuum. The hack works and gets the job done but its not something i would go back too.

 

Hey there, thanks for all your info... If I decide to run more boost, what EMS should I use... I was lookin into überdata, but when I socketed my ecu and tried to run a pre programmed chip, my engine could not rev past 2k, and had a solid cel, so I just cut off J1 connector.. I'm usin an OBD-1 PR4 ecu from a 93 integra LS, could I have not soldered the socket/ic stuff on correctly??

Thanks,

Mark

OH ya, how reliable is the AFC w/ 450cc injectors?? with 8 to 10 pounds of boost?? THANKS~!

 

It is incredibly reliable if you don't beat the **** out of it, because of the timing issues, you need to pull some timing out of the motor when you boost it. I have had mine running for a little over 2 months, comuting back and forth to college, no probelms yet. I am running the hack and the safc, with FMU and check valves.

 

i boosted my b18b @ a little over 100k on afc hack and 370 injectors. the first thing that went were the ringlands.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lsVtec... &raquo;</TD></TR><TR><TD CLASS="quote">i boosted my b18b @ a little over 100k on afc hack and 370 injectors. the first thing that went were the ringlands.</TD></TR></TABLE>

There's the problem, afc hack is meant for at least 440s and up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.DC2TurBo &raquo;</TD></TR><TR><TD CLASS="quote">

There's the problem, afc hack is meant for at least 440s and up.</TD></TR></TABLE>

Why? if the 370s give him enough fuel why would he need atleast 440's?

 

check the sig- boosted on 186,000 mile motor (stock)- sizable turbo, 9.5 lbs, hack, 440 rc's= gets the job done

 

i have a PR4 ECU in my 90 prelude turbo..im using hondata but this should be the same...on the PR4 ecu u need to solder in an additional resistor right below the jumper u soldered in.....i dont have a pic to referance to but thats what i had to do..also im not sure if the socketing requirements are the same for hondata as they are for uberdata..but mine did that same thing until i soldered in that resistor..