Better off to just read it......
Abicus,
You are an exception to my rule. You want multiple maps and to set up safety measures for running alky, in your case it may be the route to go. The stock ECU is hard to beat with a custom tune though. For you the EMS makes sense.
David Buschur
www.buschurracing.com
You are an exception to my rule. You want multiple maps and to set up safety measures for running alky, in your case it may be the route to go. The stock ECU is hard to beat with a custom tune though. For you the EMS makes sense.
David Buschur
www.buschurracing.com
Originally Posted by davidbuschur
page 2,
Matt55,
I have actually run the car with the line completely off the wastegate and had the same results, boost would hit 30+ psi and then still fall off to something very low, say 22-23 if I remember correctly. In this case that isn't what I was doing. I have the car on 94 octane now so I am doing all this testing at a boost level I feel comfortable giving a customer. I have been keeping the highest point at no more than 23.0. Then it falls off from there to 18-19 psi at 7,000 rpm. I use a high boost actuator on my car so when I am on pump gas I simply run my boost source hose directly to the actuator, no controller at all, straight line from the BOV to the actuator. This give me 22-23 peak psi and it falls to 18-19 at redline. When I go onto race gas I simply put the boost control back into the loop (was permanently mounted) and it goes to 30 psi peak and fell to around 22-23. Now I have the selonoid inline, boost in one end and then out the other end to the wastegate actuator. The boost hits 22-23 psi at 3500 rpm and stays flat to 7,000. Honestly it makes no more sense to me than it does you. I don't quite get it either as I thought before the backpressure in the turbine housing was actually pushing the wastegate open and that is why it was bleeding the boost down. Obviously that wasn't it.
David Buschur
www.buschurracing.com
Matt55,
I have actually run the car with the line completely off the wastegate and had the same results, boost would hit 30+ psi and then still fall off to something very low, say 22-23 if I remember correctly. In this case that isn't what I was doing. I have the car on 94 octane now so I am doing all this testing at a boost level I feel comfortable giving a customer. I have been keeping the highest point at no more than 23.0. Then it falls off from there to 18-19 psi at 7,000 rpm. I use a high boost actuator on my car so when I am on pump gas I simply run my boost source hose directly to the actuator, no controller at all, straight line from the BOV to the actuator. This give me 22-23 peak psi and it falls to 18-19 at redline. When I go onto race gas I simply put the boost control back into the loop (was permanently mounted) and it goes to 30 psi peak and fell to around 22-23. Now I have the selonoid inline, boost in one end and then out the other end to the wastegate actuator. The boost hits 22-23 psi at 3500 rpm and stays flat to 7,000. Honestly it makes no more sense to me than it does you. I don't quite get it either as I thought before the backpressure in the turbine housing was actually pushing the wastegate open and that is why it was bleeding the boost down. Obviously that wasn't it.
David Buschur
www.buschurracing.com
Originally Posted by Fourdoor
Hey there,
Is your boost solenoid set up as an "interupter" type of boost controler where it interupts the boost signal going to the wastegate actuator (a ball and spring MBC is an interupter style controler) or is it set up as a bleeder valve?
I ask because I had mine set up as an interupter system, and I was able to get a rock steady boost on a long pull in a single gear with great results, but no matter what I did with the feedback system I would get big boost spikes on a run through the gears.
If yours is set up as a bleeder system, and you are not getting boost spike problems I will have to try this out again with your setup.
Keith
Is your boost solenoid set up as an "interupter" type of boost controler where it interupts the boost signal going to the wastegate actuator (a ball and spring MBC is an interupter style controler) or is it set up as a bleeder valve?
I ask because I had mine set up as an interupter system, and I was able to get a rock steady boost on a long pull in a single gear with great results, but no matter what I did with the feedback system I would get big boost spikes on a run through the gears.
If yours is set up as a bleeder system, and you are not getting boost spike problems I will have to try this out again with your setup.
Keith
I have NO spike issues, the way it is working it is rock solid and a flat line to redline.
I have one of those "aluminum bullets" Shiv is talking about in my lines, and if you read some of my threads, I was holding, with NO DROP in the psi, at 25. with my mods, and Xede/Xede flash. I really dont have any spike, or drop issues at all. I lowered the boost to the effective range of the stock turbo (22-23), and I could hold the gas down with no Drop, and No spike, with just the XEDE/XEDE Flash, and my mods.my 2c
I think it is great that all the research which is going on here! enough to make us ALL happy! Keep up the Great work.
I think it is great that all the research which is going on here! enough to make us ALL happy! Keep up the Great work.
nickracer9,
Finally got around to looking into the boost control features more. I do not have any feedback turned on. Going to have to work on that. Be nice to keep this boost consistent with some feedback control. The 02 feedback works great, I will assume the boost feedback will too.
David Buschur
www.buschurracing.com
Finally got around to looking into the boost control features more. I do not have any feedback turned on. Going to have to work on that. Be nice to keep this boost consistent with some feedback control. The 02 feedback works great, I will assume the boost feedback will too.
David Buschur
www.buschurracing.com
just turn it on and go to the boost error duty table. make a staight line from the top left corner to the bottom right corner. this also controls your boost response. this will pull duty cycle if you overshoot and add duty for weather changes and such also. it works really good!
Originally Posted by davidbuschur
I really like the Power FC and have been using them more and more often for tuning. We are a Pro dealer so I have the killer software for it
I have not used the boost control yet but have been told by Apexi it is excellent. I have two boost control kits at the shop for it. The Power FC is actually on Jarrod's EVO, I will be trying it on his car.
Fourdoor,
I have the selonoid inline with the actuator. I am running it so the higher the duty cycle you input the higher the boost the car runs. To run 22-23 psi I am only in the 80% range at 7000 rpm. The car was as high as 27-28 psi before.
Your car had a good flat boost line anyway if I remember correctly. With the external wastegate and GT35R they are usually very flat, no?
David Buschur
www.buschurracing.com
I have not used the boost control yet but have been told by Apexi it is excellent. I have two boost control kits at the shop for it. The Power FC is actually on Jarrod's EVO, I will be trying it on his car.Fourdoor,
I have the selonoid inline with the actuator. I am running it so the higher the duty cycle you input the higher the boost the car runs. To run 22-23 psi I am only in the 80% range at 7000 rpm. The car was as high as 27-28 psi before.
Your car had a good flat boost line anyway if I remember correctly. With the external wastegate and GT35R they are usually very flat, no?
David Buschur
www.buschurracing.com
Sounds like you have your solenoid set up as an "interupter system" like I did when I was using the EVO 6.5 TME turbo. I was able to get a rock steady flate as a pancake boost curve on the dyno.... then on a run through the gears on the street I had wicked spikes.
Go run your car on the road while data logging the boost and do a full power run through the gears and get back to us. I may have had mine set up wrong in some way, but I am pretty sure you will run into the same problem.
Keith
Originally Posted by davidbuschur
nickracer9,
Finally got around to looking into the boost control features more. I do not have any feedback turned on. Going to have to work on that. Be nice to keep this boost consistent with some feedback control. The 02 feedback works great, I will assume the boost feedback will too.
David Buschur
www.buschurracing.com
Finally got around to looking into the boost control features more. I do not have any feedback turned on. Going to have to work on that. Be nice to keep this boost consistent with some feedback control. The 02 feedback works great, I will assume the boost feedback will too.
David Buschur
www.buschurracing.com
This is turned on in the map i sent ya
. Just use it for reference and turn feedback error on for weather change variatons.
What solenoid are you using the GM one? I use to have that on my honda it would never fluctuate at all.. always held steady to redline. But of course I also had an external wastegate on a 60-1
Originally Posted by Fourdoor
I actually get a bit of creep in my boost rather than fall off. May have needed a bit more grinding on the hole in the exhaust manifold when the flange was welded on.
Sounds like you have your solenoid set up as an "interupter system" like I did when I was using the EVO 6.5 TME turbo. I was able to get a rock steady flate as a pancake boost curve on the dyno.... then on a run through the gears on the street I had wicked spikes.
Go run your car on the road while data logging the boost and do a full power run through the gears and get back to us. I may have had mine set up wrong in some way, but I am pretty sure you will run into the same problem.
Keith
Sounds like you have your solenoid set up as an "interupter system" like I did when I was using the EVO 6.5 TME turbo. I was able to get a rock steady flate as a pancake boost curve on the dyno.... then on a run through the gears on the street I had wicked spikes.
Go run your car on the road while data logging the boost and do a full power run through the gears and get back to us. I may have had mine set up wrong in some way, but I am pretty sure you will run into the same problem.
Keith
It will not spike in no way on the street. Send me your email address and i will send you my map to reference from to set yours up.
Interesting Keith. Your car might benefit from this now. I have the fascia ripped off my car now and the roads suck, covered in salt. I won't drive the car this time of year. Guess I'll find out about the spikes in the spring!
Good news. Had the car on the dyno today doing more turbo experimenting. Freaking unbelievable how good this works.
I spent more time with it today and put race gas in my RS. Last pull I made the car was hitting 20 psi at 3500 rpm, peaks at 28 psi and never fell below 27 psi to 7200 rpm. I am really shocked at how well it works.
I will mess with the boost feedback, maybe mess with it tomorrow. For now it is dead on so turning it on should just make it steady for day to day weather changes and such.
Something else I like about this. As easy as it was for me to change boost settings on my car this is easier. Now my race gas map has one boost map in it and when I switch back I will instantly have my pump gas map/boost levels. Cool stuff.
More turbo testing tomorrow and then the RS gets it's next round of upgrades
David Buschur
www.buschurracing.com
Good news. Had the car on the dyno today doing more turbo experimenting. Freaking unbelievable how good this works.
I spent more time with it today and put race gas in my RS. Last pull I made the car was hitting 20 psi at 3500 rpm, peaks at 28 psi and never fell below 27 psi to 7200 rpm. I am really shocked at how well it works.
I will mess with the boost feedback, maybe mess with it tomorrow. For now it is dead on so turning it on should just make it steady for day to day weather changes and such.
Something else I like about this. As easy as it was for me to change boost settings on my car this is easier. Now my race gas map has one boost map in it and when I switch back I will instantly have my pump gas map/boost levels. Cool stuff.
More turbo testing tomorrow and then the RS gets it's next round of upgrades
David Buschur
www.buschurracing.com
Originally Posted by EvoVIII_SFL
My stock turbo on the 05 holds 23psi with a hallman MBC all the way to redline, it doesen't drop one bit.
My mods: catback, dynoflash, hbc
My mods: catback, dynoflash, hbc
If i'm usin a boost comp fuel mapping, would the control get setup the same as if i were tunning cell by cell? The AEMPRO PDF. dosent have anything in there about boost comp. Let alone a boost comp/ boost control section. BTW, i changed my order from the forge to the gm and pigtail today. Hope i get those quick setup instructions.