Hi
I have already pm'd Graham regarding this, but I haven't had a reply as of yet, and i'm an inpatient bugger!
On my 20vt I have a GT28R, and stainless exhaust. The mapping is standard at the moment. I'm quite concerned about fueling, and although i'm hoping to get to see flea in the next week or two, I was pondering something.
This is my second coupe. My first one was crashed by a mate and I still have it for bits. It was a R reg 20vt. When i bought the chip back in 2006, it was from a forum member on here, not from Graham direct. I can't remember the chips being called Gtech at that stage, just GrahamL chips or something simalar? (I could be completley wrong here) Anyway, I had this chip fitted to my old 20vt, which had an airfilter and a mbc controlling the boost at 1.15/1.2 bar.
My question is, can i fit this chip, to my new coupe and will it be safe? My new coupe is V reg, I don't know if the maps are year dependant, i honestly can't remember. If it will fit, will it be safe? The chip is fueled to run 1.2 bar. I will ONLY be running 1bar max with my GT28R. Does this mean that because there is going to be 0.2 bar of pressure missing, the fueling will be slightly rich? Also, because the GT28R is more efficiant, i presume it will be flowing more air, but at a lower pressure, there for making the mixture less rich and kind of leveling it out? I know this is not precise, and fueling is going to be checked regardless weather i fit this chip or not, but I'm assming (again) that the higher fueling chip will be better for my engine if I only use 1bar max of boost pressure via a MBC?
Or would the powerband have moved up so far that the mixture is going to be very rich pre boost, then leveling out on full chat?
Many thanks.
Rob.
