JMSMotorsport

So set Fuel Cut limit auF0133 to 6100 and Move the RPM Limit auF0144 to 6250? I will also try using that process as that makes sense, I guess they make the RPM so much quicker needs extra time to get that shift done.

Am I right in thinking if it's hitting engine limiting before the change happens, I just need to bring the shift on earlier even thou its already commanding the shift at 5040rpm it hits the limter at 6060rpm. ? Mainly the 1-2 if i use it in Manual it shifts fine under WOT. The Log Has Multiple Pulls - From Dead Stop to Rolling and a Manual Pull 28-11-2022 10-00-36 AM Log.teclog

can someone post the actual xcel file, HP tuners forum has locked me out and the reset password feature doesn't work.

Check the voltage at the pump also. Turning up the commanded alternator voltage gave me much better voltage with the pump running.

Sure is. This is when I had it set at 3bar so switched back to 4bar and stayed happy. Before this it was still dropping around 6psi on 3 bar base IMG_0428.MOV

Sure have has to adjust high slope to pull some fuel back out.

Well it turned out that the pump didn’t fit into the module properly and needed to trim it up for the taper at base of pump. Was jammed hard against the bottom of the Bucket.

Done some more testing this morning, Run even bigger cable to relay - found some voltage drop even between relay and pump due to cable size. Bumped my alternator voltage up so I’m now getting a solid 13.7v at the pump. Made little difference - lowered base pressure to 3bar - the high and low slope numbers were out by around 5-10% even after lowering via the same percentage and amount use be the ID calculator - still getting pressure drop. I’m leaning towards an actual pickup issue at the pump.

Yeah the only issue I thought that doing the speed density on flex when it goes back to 98 will be pig rich. I've used the ID spread sheet to find the difference between on 43.5psi and 58psi on there slopes and taken this amount from my current slopes. Hopefully this gives me a good starting point on the slopes. Might work out the percentage change also and try these numbers.

Iva had a thought. Injectors should be good for it but in the software can I reduce the expected base fuel pressure to be at 3 bar then would the slopes just be a matter of reducing them by the pressure percentage difference or would it not be that simple?

What fuel filter do you use? Just the basic Ryco

Thanks for all your insight. Customer will have to make do with what we can get from this setup and move onto a bugger fuel system and well the auto will need upgrading anyways.

I have another bit of hose coming anyway so will try it.

Nope pipe checked And triple checked, tank is brimming. KPM say there good for 700hp I’m guessing this is Engine and well I’m nearing that.

This will be my go to next time.

Yep just seems odd. I just had pump apart again and fiddled around with socks and put it back in and it’s actually worse that’s what’s leading me that way.

It’s got me fucked. Just changed reference line no change, the bucket came with its own filter sock that I’m using as the one supplied with pump doesn’t fit as it hits the bottom of the basket. I forget when I pulled factory one out does the pump sock sit hard against the bucket base? Could it be that there’s no room for it to pull fuel in? I thought those socks were designed to allow fuel to get pulled in everywhere

It’s dropping. Strange considering the pump and setup should be fine. New Filter and New Pump FullSizeRender.MOV

Would the 1 525 be sufficient for that power level? I’ve got a sensor in now not just gauge so can watch in car while on dyno. See what goes on

At idle vac line off I can set it at base 58psi and it’s steady and then fitting vac line pulls it down as should. So that wouldn’t cause a low pressure situation more so an unstable high pressure at idle.

Cheers. Thought would have been fine. Now will the return Venturi in the bucket cause pressure issues? I’m going to get a fuel pressure sensor sorted so I can log it.

I adjusted the sensor based on the numbers in the how to guide. The supplied ones were out just. But there is certainly a fuel supply issue. Even now on the feed side the content drops from 73 to 65 Time to keep digging- 525 Walbro in a Sniper 1L Bucket, Upgraded wiring to a relay at the pump all feed side is -6 Teflon braid. What’s the consensus is that big enough lines? To make 450rwkw on E85

It appears the ECU log shows a 10% difference in the E content

Ah this could be my issue. I will add Ethanol to the log. I’m actually not sure why I put it in return knowing they should be in supply. That’s an over site. Thanks.

File E75-385rwkw.tec