We just installed their 103 TB on a 2650-car and so far so good! I was capturing what I thought was a bit much vacuum in the snout (as much as 8 kPa on HPTuners), so it seemed interesting to try a 103-snout and TB. We try to go with our Sponsors and because Soler was one, and had a guarantee, we went that route.
I understand that we're running a newer version of this TB. The car had the stock-2650 snout and a ported-95mm LT5. I ported the piss out of it; enough such that the first one I did was pretty much un-tunable because of how much I shaved the shaft down - I didn't really get into the lower-air flow-areas, but I had to start over with a new one). I was logging as much as 8-kPa lately, so we wondered if it was worth it, even though it seems the consensus is it would not be. I like ice skating up-hill, so we tried.
I'll admit I knew full well about how it was strongly recommended to do the official idle relearn procedure first. I figured I'd have to retune anyways, so, in spite of that, I started adjusting the tune for idle TMA anyways. That was not helpful, as many seemed to have found. After several attempts, I got nowhere.
So - I started the procedure, and my TMA was allowing near-commanded spark (well above 10*) before I even started driving. The more we drove, the better the timing recovered after coming from a stop, and transitioned right into a smooth idle with plenty of advance. By the time we got home, timing was as good as I'd seen in the past. It's very encouraging.
As far as vacuum, it was impossible to go WOT. I tried to roll into it, but it was not really possible, and I couldn't really get out away from people, so I really couldn't stay in it too long. Even with the few short bursts, I saw a 3-kPA reduction in vacuum at redline. I was seeing about 94 kPa (102 baro minus 8) before and I was seeing less today. I have to try to stay in WOT more for a better evaluation and comparison, but so far, this little experiment might be worth it.
Was it worth it at this point? Considering there was a REALLY good deal on the snout, that made the mod' worth it, despite the modest original mods', I'd say that the combination is as optimized as can be for all things considered. There are cheaper ways to go faster, but not around these parts. This thing is real jewelry under the hood though. Good stuff - Good product from Soler. No - no one asked me to, nor did I offer to leave this review. I just appreciate the engineering and dedication to the product and customer. I value those.
Cheers!
