or are we just holding onto it because of habit.

I was considering a Apexi AVC-R and I've read about the problems that it has sometimes. So, I read and changed my mind to Profec B, but on reading about the Spec 2 I am not happy with what I hear about it either.

Now I know everyone swears by the spec 1, but since they are no longer available, we have to deal with the spec 2. I have read of people running into problems programming their spec 2 and also a few threads about having boost spikes.

I know that this is similar to a lot of threads, but I wanna see if everyone still agrees that the Profec B is still the best even with the problems that the spec 2 has brought into play.

Is the Spec 2 still more reliable & easier than something like the AVCR or has Greddy complicated it too much?

 

you can get a used spec 1 off of ebay or the " parts for sale" section.

I personally use the AVC-R with no problems. Its allitle much at first but after about an hour it's pretty easy to navigate.

it's not as hard as people discribe!

ian

 

thanks, did you have any problems with it controlling the boost (ie spikes when the 2ndary kicks in). I am leaning more and more towards the AVC-R. After posting this I have continued to read in the archives. It seems like it does a lot more and plus it has the cool blue display was it difficult to splice into the ECU/wiring?

 

LOL yea, the display does look cool!

uhhh as far as spikes.... yay I did at first. I rode with the setting off, and was only boosting about 7 psi for a while.

the thing is when you set it to either boost setting it needs a lot of tunning. the trick is to find a good long road/ freeway that you can get a good 3rd-4th gear pull. good luck with that.

oh and remember to takeit easy at first until you get the boost curve under control. I tried it the first time and I got over 1 full bar and it would have gone more if I didn't let off.

Make sure you have another boost gauge already set up to make sure all is working well.

good luck,

ian

 

oh sorry, i forgot to mention... as for installation, I have no idea. I had someone else do it for me. =) sry...

 

hmmmm a good 3rd & 4th run. I think i got a road in mind.

 

An important thing to remember with the SpecII is that it doesn't function properly if you have it read in psi. You have to set the display to bar, or the boost limiter will act too early, among other things.

 

yea those are the type of problems that are leading me away from the Spec 2. I don't mind a boost controller with a steeper learning curve as long as it works reliably afterwards. I know that the PSI/BAR thing is kind of small in perspective, but the question is why didn't Greddy catch that during testing?

 

whoa.this is the first ive heard of this problem.everyone on here swears by the profec b.What other issues are there.I have a profec b on backorder right now.So if its really a piece of crap ill cancel my order asap.

 

I have the Spec II. It does lower the boost setting when the ignition is cut. However, in order to restore your settings just switch the controller from lo-hi-lo. This works for me every time. I think it is a minor problem people have blown out of proportion.

I use mine to keep the 10-8-10 pattern till I get a PFC and it works great. If I don't switch the controller upon start up it hits boost limit at about 8.5 PSI. It keeps me from overboosting on cold starts, which I wouldn't do anyway, just an extra safety net. And could also be thought of as a valet feature.

 

the only question is has the new Spec II become just as finicky as the others, while still lacking the features? I guess that is what I was trying to get at when I opened the thread. From what I read the answer is yes, but I wanted some input from the forum.

The Spec I was obviously an awesome unit, but it is getting harder to find one used that is complete and I for one would rather not have to coble one together and wind up paying the same as a new BC.

 

I always heard that the profec b was very easy to use and trouble free.Obviously i heard wrong.I was going to go with a blitz sbc-id originally.Which woul dbe the easiest to install,use and with the least problems?

 

well i think a lot of the good stories you remember are about the Spec I; it seems as though it was bulletproof and easy to use. The Spec II however doesn't seem to be carrying on the legacy.

 

damn.now i dont know what to do.Someone step in and clear up this mess.Which boost controller is the best? and why

 

I dont think there is a "best" boost controller... thats a matter of opinion..

 

hmm.maybe the least problematic then?
easy to use?
I dont want something like the blitz unit where it seems like you have to be a friggin genius to even begin to understand how to use the damn thing.

 

i think then the Greddy is going to have the easiest learning curve still.

the reason i posed this question was because, personally, the only reason i would give up features would be for reliability.

maybe some1 who has gone through several different boost controllers can shed some light on the benefits/shortcomings of the Spec II versus other BCs. Or if there is a link that I missed in my searches that already answered this question, please, direct me to it.

 

I love the Blitz DSBC. Works great, has four boost settings, but most importantly it has overboost protection that works.