should I swap my SMC+ for a S-afc?? whats the pros and cons of each?

im running a T25 on a B18B@8psi

I'm not planning to go any higher in boost, 8psi is just perfect for me and my wallet. I do have a acouple of problem with my setup, like in low throtle I have hesitation and my idle runs erraticly, sometimes it even stalls. Full throttle there is no problem of hesitation whatsoever. I never lean in boost. What is the cause, my fuel management or my ignition? I might plan to buy an MSD btm6, but if it's only the FMU, let me know. Thanks


Modified by birz at 5:41 PM 11/18/2003

 

I have had both. Lemme Tell ya.. AFC > SMC Id take my AFC over the SMC anyday. My turbo setup ran 10x better on the AFC. Its also Much easier to change/view settings, plus the AFC can log.. Only pro the SMC has is price, but you get what ya pay for..

 

any other comments???

and should I upgrade to the SMC 500?? its 30$

 

you should maybe tune it a bit more, and keep the smc+.

 

i'm not sure what the best version of the SMC is, but from what i've heard.. it's less of a hassle than the AFC.. and since you already have the SMC why get rid of it?

 

cause I have an erratic idle and hesitation on part throtle (the car bugs when I'm not WOT)
I dont know if I can tune it properly, anyway thie spring I'm going to put Arias pistons in, and an MSD BTM. I will have to tune from scratch again.

Is it possible to get rid of the hesitation problem with only the hack???

 

wait you are running the FMU too?

 

no,, no fmu

-b18b1 (stock internals for now) burn oil like hell, thats why I get it rebuild this spring with forged pistons
-450cc talon injector
-turbo T25 (8psi)
- GSR tranny
-SMC+

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by birz &raquo;</TD></TR><TR><TD CLASS="quote">no,, no fmu

-b18b1 (stock internals for now) burn oil like hell, thats why I get it rebuild this spring with forged pistons
-450cc talon injector
-turbo T25 (8psi)
- GSR tranny
-SMC+

</TD></TR></TABLE>

I would suspect your injectors for your idle problem. I originally used some C&B'd dsm 450's and had a very rough idle. Then i tried saturated 550's from viren (b18bturbo), run -45% at idle and have never had a problem. I think the key was switching to saturated over peak&hold. -Mike