My grips with the fitting. A minor one is that there was no option for having it coated and I had to use my Cerokote guy. 2nd, no installation instructions were included. OTTP says installation is easy to figure out and for me, it was, but seeing as it is a fuel system part and incorrect installation can cause a leak that could result in a major fire. Having a set of installation instructions to confirm everything is a nice piece of mind. My biggest grip is that it -6 ORB. Why not -8 ORB or -10 ORB? Because OTTP determined that no Ecotec needs an -8 or larger fuel system. Going to the largest ORB fitting you can fit allows the end user to use whatever size line without running the risk of chocking down their fuel system. Now I have to modify a perfectly good -6 ORB to -8AN fitting to ensure no fuel supply issues. Yes, technically using the pulse damper end is feeding fuel into the wrong end of the stock fuel rail, but in my defense the proper feed side is alot more restrictive for a -8 feed line.
Unfortunately OTTP was the only place that I could find that fitting. I removed the stock fuel pressure regulator and pulse damper from my LSJ fuel rail to run an aftermarket Radium Engineering FPR/PD combo with a -8 AN feed and -6 AN return. The LSJ fuel rail is the only "stock" part in my fuel system. My whole fuel system should be overkill which is what I want.
In my 15 years of messing with these Ecotec engines I have never heard of the fuel rail needing to be upgraded. With how beefy the stock L61 and LSJ rails are, I would not be surprised if that OTTP rail actually flowed less fuel.
Ah jeeze - Saw all this after I already pulled the trigger on these. I don't have a ton of parts from them, but definitely have some. Hopefully nothing I regret later down the road
Here is another kick in the nuts. That fitting is only for the LSJ fuel rail and will not work on that aftermarket fuel rail. Also you will need an external fuel pressure regulator/damper combo to run that fuel rail.
This is what I have and am very happy with it. Yes there are cheaper options, but Radium's products are extremely nice. Some of the best parts in the market.
That fitting deletes the pulse damper and will allow you to run a fuel return line to the tank. The pulse damper smooths out the spikes in fuel pressure which can occur from the injectors opening and closing. Your car will run without it. But you can run into fueling issues without it.