Hookey

Thanks Puff will do. So they make the high load line richer in the base fuel map to account for it. Im guessing the high load line will be met and used long before wide open throttle and full boost and therefore it will run rich until full boost and load is met?. I have the parameter file for the 4 bar sensor so ill order one. Thanks

Hi there, I haven't got the 4 bar boost sensor yet so I can use the change over logic. Although I intend on doing this. My question is there are a number of people running 23 to 24 psi well above the 22.5psi that the map sensor can run. Without the 4 bar boost sensor and change over logic. I am currently running 22psi e85 and 20psi 100plus petrol. I would like 24ish as well but im a bit nervous about the last 2 psi. How do they stop the car going lean once the map is pegged at 22.5 ish psi?.

Will do Puff. Thanks

@hjtrbo& @Puffwagon thanks for replying I was hoping you guys would. What happened was I was running a gap of 0.81mm @ 21psi. I turned it up to 23 then 24. @23 I felt the odd miss. Not every pull. This scales roughly to the 0.7 @ 25 psi you quoted Puff. The plugs I use are NGK BKR6EIX Iridium with the factory Coils. There will be enough room in the factory system if I gap them down. Thanks for that info Puff. Is there any value in changing the dwell settings?

Hey guys has anyone installed these the stock ecu?. 1800 Bucks & looks like you need to wire it in. I am running 24psi e85 & standard plugs/ coils are struggling with a 0.72mm gap. I though this would be a good upgrade from a do it once do it right perspective as I was to keep turning the boost up.

For those that dont know the arrow above means "logically implies that". Basic year 11 maths. You use it when showing your working with maths

Awesome Puff. I put a couple more rows of -20 in my table so I could do it at 3500 rpm. So 😎 this software and these cars are very satisfying

How good is this! I put Rolands timing hole in and wow spent and hour wrecking my tires. As we age it gets harder to get a buzz but this sure did it.

Anyone confirmed these settings work?. Seems like a simpler process than using the change over logic.

Yea I get all that Puff. Tuned a lot of cars. The table has positive numbers for boost error, except the first row. Seeing as they are all positive except the first row I am picking they are for fixing or helping an under boost situation as overboost errors are negative boost error numbers. Therefore because I want to make underboost worse not better I need to put positive numbers from 3.4 to 9.8. That's the question I am asking. After thinking about this a bit more, I'm not sure this will work because on spool up as you said it is always underboost so will run this table. This will work for the lower gears, but the higher gears when I want it to have high boost it will be sluggish on spool. See boost error below on spool up

If I am in closed loop 1st or second gear for example command zero DC and 8 PSI through the whole Rev Range, but can only get it down to 14psi like it does now, then I guess this will envoke a "boost error" that I can adjust by commanding values below 14psi for the desired boost in these gears. This will bring auf3264 into play and reduce torque. Am I thinking about this correctly?

Thanks Roland and Puff. Ill give the cam timing a go when I get some more ethanol. Sounds like a good idea

Yea thanks for the reply puff. Im not serious or worried about it enough to persue it heavily or write lengthy posts. Im just saying in 2nd gear when at times it almost grips running a few degrees less timing would help get it to hook up. First might need a few more lol. Combined with the boost by gear I think it would be good. If it cant be done then thats fine no biggie. But you cant deny a few degree less timing would help at times

Your right I could widen my boost control. However timing is so instant. You could keep boost higher and timing low, then hit the next gear and boom bring the timing back in. Boost by gear is great but it still has to build boost when shifting to a higher gear.

Im guessing this is not possible but wouldn't it be great. Running enough spring pressure to get to 24psi. At zero wgdc its about 14 ish psi. On e85 this is still enough to blow the tires in 1st and 2nd. 285 r20s as well. Even if it was just the highest load line of the blk table split into gears?.