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-   -   freshly boosted si with v-afc help! (https://www.homemadeturbo.com/engine-management-10/freshly-boosted-si-v-afc-help-4831/)

sizak 05-11-2003 12:53 AM

freshly boosted si with v-afc help!
 
Alright guys i've finally finished my turbo project and running a v-afc. Anyway heres what i need help with vafc settings that will get me running alright and suggestion.. like if i get hesitation what do i need to change on the vafc and things of that nature, thanks guys :)

oh yeah here are the specs
dsm 450cc injectors
precsion sc44 w/ 63 exhaust(t3/t4e)
v-afc
stock b16 internals running 6.45psi..

Dr.Boost 05-11-2003 12:57 AM

Re:freshly boosted si with v-afc help!
 
From what I understand running 6 psi with the hack is not recommended.

Are you looking for fuel percentage settings or what? What guages do you have? You will need an a/f guage and an EGT would also help.
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sizak 05-11-2003 01:00 AM

Re:freshly boosted si with v-afc help!
 
well i plan on running 10psi when its dyno tuned. right now i just have boost and a/f EGT is comming. I have a MBC thats sitting next to me not installed yet and also a walbro 255lph fuel pump i can install at any point. people are saying run -38 which i was toying around with on the street earlier trying -36 and -40 and it was hessitating al over and when i WOT it was bogging/hesitating but tomarrow i'll try -38 and any other suggestions people can give.

Dr.Boost 05-11-2003 01:24 AM

Re:freshly boosted si with v-afc help!
 
What do you have the low/high crossover points at?
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sizak 05-11-2003 07:37 AM

Re:freshly boosted si with v-afc help!
 
for vtech? i believe ones set at 4800 and the other is 5200 what should the throttle lo and high be set to? i set it to 98 and 99

88crxSi 05-11-2003 02:17 PM

Re:freshly boosted si with v-afc help!
 
pssst read the post at the top of this forum

Tom-Guy 05-11-2003 09:40 PM

Re:freshly boosted si with v-afc help!
 
1) Do blue wire mod so you can monitor O2 volts under boost. Aim for 0.900+. That is not in anyway accurate, but you should be safe. Check your plugs to verify that you are not getting detonation.

2) Retard your distributor about three degrees. That should minimize the advanced timing to something you can safely run with a good rich mixture.

3) Your choice of turbo rocks. Pricey when compared to the regular jy fare found on this board, but they lay incredible power down per psi.


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