Yes I adjusted my overall fuel trim after updating the dead times to bring idle afr back to what it was. It was previously set a +3% and bringing it to zero brought idle right back to where it was, then had to touch up part throttle and didn’t even touch the boost columns. So my overall fuel trim is only 3% less then it was and my base pressure is 20psi higher and wot afr is basically exactly the same. So that seems right to you guys? I seriously thought I’d be pulling a lot of fuel..

Okay I figured it all out lol. Long story short my b&m fuel pressure gauge went out, it said I had 65psi base pressure, but it was really only 50psi. So that makes more sense that it only needed a 3% reduction in fuel to bring afr back to target. I started the car up today and noticed my fuel pressure gauge was jumping all over the place wildly at idle, I was like wtf it wasn’t doing that before. I drove it around and the afrs were perfect, so I figured fuel pressure was fine and that the gauge was just bad. So I went and bought another b&m pressure gauge locally, when I installed it the needle was rock solid at idle. I turned the engine off and turned the fuel pump on in Neptune and the base pressure was only 50psi, so I cranked it up to 65psi. After retuning the fuel maps it ended up needing 7-8% fuel pulled out of the high load part of the maps. So this makes a lot more sense now lol. A total of about 10-11% fuel total needed to be pulled with a 20% increase in base fuel pressure.

After getting back from driving it I noticed my pressure gauge once again jumping around like crazy. Are b&m pressure gauges just garbage or can they not handle higher fuel pressure of something? Maybe I’ll move the gauge to the regulator instead of on the rail and see if that helps, but that would be stupid if it went out again in less then a day.

Now it’s time to get some e85 👍🏼

Thanks for the info. Wish I knew that before I bought 2 of them lol. Hopefully I can get my money back for the one I bought just yesterday since it broke literally an hour after being installed. At least I was able to get the right base pressure set this time.

Yeah I’m pretty sure the failure is related to the higher fuel pressure. My first b&m gauge worked fine for a couple years at stock fuel pressure and then failed within a day of higher pressure, new b&m gauge again failed first day at higher pressure.

Was able to return my faulty b&m gauge and ordered an aeromotive instead. Turns out the aeromotive gauge is made by autometer. I went ahead and mounted it directly to the fpr. Reads rock solid so far and I have no doubt that it will continue to do so. Reads about 56psi at idle with vacuum and 65psi without. E85 coming soon. Should have plenty of fuel for this little hunter turbo.

Cant wait to get some e85 in this thing. I’ll likely be getting some on Friday, but it supposed to be raining and thunderstorms the next 3 days unfortunately.
Ive never had an issue running without the top timing cover in over 10 years haha, but that doesn’t mean I won’t. You’re probably right, but I’m not too worried about it. Hopefully I don’t eat my words lol.

Yup wish I knew that before wasting time and money. Lesson learned.

Yeah I have, not a lot though. Seems like I get inconsistent results most of the time. I know having a super smooth flat road helps a lot. You have any luck with it?

Yeah I think it is fairly accurate because based on my trap speed and weight I’m right around 400whp and that’s about what this 4th gear run says. This wasn’t the smoothest road tho. And it’s funny when you get wheel spin haha! It’s obvious I lost broke traction at ~5600rpm on the 3rd gear run. Man if you’re getting that good of results with it then I’ll definitely mess with it more on a super smooth road. Feel free to post up some of your graphs, I’m curious what yours look like.

No e85 yet. I honestly wouldn’t give those random virtual dyno graphs much credit, I think the hp number is in the ball park based on my trap speed from the track, but the tq number is obviously inflated. Like is said it wasn’t the smoothest road either witch really makes a big difference when using vd. My rev limiter is at 8,500 rpm so those weren’t even full pulls. I just pulled those random logs up after Aradin mentioned it lol. I definitely want to mess with it more on a super smooth road and log back to back pulls to verify consistency. I’m just at the point now where 4th gear pulls are needed to avoid wheel spin, witch makes it harder to do, but I have quite a few nice spots around me that fit the bill well.

I also noticed that I’m eating up my r888s with all the spinning in 3rd gear lol. With the warmer weather 3rd spins at 16-17psi, but still pulls hard while spinning. I’m definitely getting some pretty wicked torque steer on anything other then a perfect road. I’m wondering if a set of traction bars would help this??