Dyno Flashed - Buschur Racing Stage two dyno sheet
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No it's not, think about this Al, you have a dyno that can load up a car and put enough force to keep the car from going any faster and it's getting a little det at say 4500-4800 right? So you do a few more runs and see it over and over, NOW here is the cool part. You get to 4500 and load the car so it can not go any faster, go WOT and then tune those few little cells that have the problem. See what I am saying, you can load it up or have it stop at 4600 over and over and watch and see or let it only go from 3800 to 5300 and see if you get det so you only have to play with the cells and you can see FULL LOAD over and over and HOLD it there. It does work well and I have seen it done and it's super cool because the dyno STOPS the car from going and loads it up if you want it to, say 3500 and the car STOPS at 3500.
Originally posted by DynoFlash
Thats why I prefer to tune the car on the road - up and down hills etc etc and then test the results on the dyno jet
BTW - I have yet to see the evo that holds a steady rpm under full gas so that is a meaningless capability
Thats why I prefer to tune the car on the road - up and down hills etc etc and then test the results on the dyno jet
BTW - I have yet to see the evo that holds a steady rpm under full gas so that is a meaningless capability
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From: 2003 Evo VIII - Silver
Originally posted by ItsStockOfficer
Hmm, it seems to me if your seeing 99% IDC, how do you know that your FP is the problem and your not actually maxing the injectors out?
ON 550's I leaned out at 320- 340 whp on pump, because of injectors, I was maintaining fuel pressure. This was on 91 octane.
Hmm, it seems to me if your seeing 99% IDC, how do you know that your FP is the problem and your not actually maxing the injectors out?
ON 550's I leaned out at 320- 340 whp on pump, because of injectors, I was maintaining fuel pressure. This was on 91 octane.
Fuel pumps are like 90 - 110 for the walboro 255 lph - simply put if your making over 310 whp replace the stock fuel pump - its assinine to play around with something that is so cheap and easy to change
Penny wise and pound foolish
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From: 2003 Evo VIII - Silver
BTW - another thought that occured to me is that one of the reasons WHY we are runnng out of fuel faster is the massive trq we are building down low before 4,000 rpms - - our car is pulling harder sooner and so on a long pull to red line we are taxing the fuel system more than other tuners who make less trq down low and just make peak power at 6,000
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Keep the trq "Slam you in the seat at 4,000" All that does is kill the clutch and break ****. I want PEAK power as close to redline as I can get like the charts I posted before.
Originally posted by DynoFlash
BTW - another thought that occured to me is that one of the reasons WHY we are runnng out of fuel faster is the massive trq we are building down low before 4,000 rpms - - our car is pulling harder sooner and so on a long pull to red line we are taxing the fuel system more than other tuners who make less trq down low and just make peak power at 6,000
BTW - another thought that occured to me is that one of the reasons WHY we are runnng out of fuel faster is the massive trq we are building down low before 4,000 rpms - - our car is pulling harder sooner and so on a long pull to red line we are taxing the fuel system more than other tuners who make less trq down low and just make peak power at 6,000
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From: 2003 Evo VIII - Silver
Originally posted by evo3323232
No it's not, think about this Al, you have a dyno that can load up a car and put enough force to keep the car from going any faster and it's getting a little det at say 4500-4800 right? So you do a few more runs and see it over and over, NOW here is the cool part. You get to 4500 and load the car so it can not go any faster, go WOT and then tune those few little cells that have the problem. See what I am saying, you can load it up or have it stop at 4600 over and over and watch and see or let it only go from 3800 to 5300 and see if you get det so you only have to play with the cells and you can see FULL LOAD over and over and HOLD it there. It does work well and I have seen it done and it's super cool because the dyno STOPS the car from going and loads it up if you want it to, say 3500 and the car STOPS at 3500.
No it's not, think about this Al, you have a dyno that can load up a car and put enough force to keep the car from going any faster and it's getting a little det at say 4500-4800 right? So you do a few more runs and see it over and over, NOW here is the cool part. You get to 4500 and load the car so it can not go any faster, go WOT and then tune those few little cells that have the problem. See what I am saying, you can load it up or have it stop at 4600 over and over and watch and see or let it only go from 3800 to 5300 and see if you get det so you only have to play with the cells and you can see FULL LOAD over and over and HOLD it there. It does work well and I have seen it done and it's super cool because the dyno STOPS the car from going and loads it up if you want it to, say 3500 and the car STOPS at 3500.
NO evo will stay at a static rpm point under load and boost - this only happens on a dyno and has little use in actual driving
The only time you maintain a constant rpm and speed is crusing down the highway on closed loop operation
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From: 2003 Evo VIII - Silver
Originally posted by evo3323232
Al, if you are running less boost and running out of fuel what are you raping? Timing? It has to be. Why not ease off the timing and raise the boost and you should have more fuel then right?
Al, if you are running less boost and running out of fuel what are you raping? Timing? It has to be. Why not ease off the timing and raise the boost and you should have more fuel then right?
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But what I am saying is a 3rd gear pull goes fast, you can LOAD THE WHOLE PULL up say +50% and it lasts 2 times as long so you KNOW what is going on. I think this is the best way to go, it really loads up the car HARD and if it's going to det it will do in on WOT going 500rpm every 10 seconds, Like going straight up. Will this ever happen is real life, hell know. But is it the MOST extreme you can run a car so that when you tune it you know you are safe. Well Hell yes 
Originally posted by DynoFlash
To avoid all that I just use a datalogger and record the full run - then i can go back and look at it
NO evo will stay at a static rpm point under load and boost - this only happens on a dyno and has little use in actual driving
The only time you maintain a constant rpm and speed is crusing down the highway on closed loop operation
To avoid all that I just use a datalogger and record the full run - then i can go back and look at it
NO evo will stay at a static rpm point under load and boost - this only happens on a dyno and has little use in actual driving
The only time you maintain a constant rpm and speed is crusing down the highway on closed loop operation
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From: 2003 Evo VIII - Silver
Originally posted by evo3323232
Keep the trq "Slam you in the seat at 4,000" All that does is kill the clutch and break ****. I want PEAK power as close to redline as I can get like the charts I posted before.
Keep the trq "Slam you in the seat at 4,000" All that does is kill the clutch and break ****. I want PEAK power as close to redline as I can get like the charts I posted before.
Its not the peak # that counts - its the area under the curves
BTW - I make over 400 ft lbs on my stock trans with over 13,000 miles with no problems so I do not foresee any problems with this guy's evo
This is a great new method of attacking my results - - "Your trq is to severe!"
Please Fat Al - don't make my Evo smal me in the seat so hard!
Get a life man
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Al, there is something you are doing different to eat all that damn fuel. This **** is not that hard we have 3 things, boost, timing, and fuel that's it. You HAVE to be hitting the timing hard to need all that fuel man that's all I am saying because we know it's not the boost because you say you run less boost with more power so it's not boost right? Next is fuel and we know you are running out of that so what is left? Timing right? This stuff's not that hard man.
Originally posted by DynoFlash
This car has a boost controller - read the thread
This car has a boost controller - read the thread
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From: 2003 Evo VIII - Silver
Originally posted by evo3323232
But what I am saying is a 3rd gear pull goes fast, you can LOAD THE WHOLE PULL up say +50% and it lasts 2 times as long so you KNOW what is going on. I think this is the best way to go, it really loads up the car HARD and if it's going to det it will do in on WOT going 500rpm every 10 seconds, Like going straight up. Will this ever happen is real life, hell know. But is it the MOST extreme you can run a car so that when you tune it you know you are safe. Well Hell yes
But what I am saying is a 3rd gear pull goes fast, you can LOAD THE WHOLE PULL up say +50% and it lasts 2 times as long so you KNOW what is going on. I think this is the best way to go, it really loads up the car HARD and if it's going to det it will do in on WOT going 500rpm every 10 seconds, Like going straight up. Will this ever happen is real life, hell know. But is it the MOST extreme you can run a car so that when you tune it you know you are safe. Well Hell yes
At this point we have the Evo so dialed in our "tuning" is just a matter of fine tuning the appropriate base calibration files to suit the individual car and verifying that everything is working safely
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From: santa monica
Al,
You want to argue that tuniing without a dyno is better than not using one... are you on crack?
No professionally built and sponsored car is tuned without a dyno. Then they tune driving conditions too. Maybe not having one or reasonable access at an affordable price is what happens when you alienate people on a wholesale basis...
There is nothing wrong with tuning on the street and a uego if thats all you got. Just don't insult people's intelligence and say your way is the only way or dis professional shops who want to tune professionally on the dyno because you don't have one.
mmlvmm
You want to argue that tuniing without a dyno is better than not using one... are you on crack?
No professionally built and sponsored car is tuned without a dyno. Then they tune driving conditions too. Maybe not having one or reasonable access at an affordable price is what happens when you alienate people on a wholesale basis...
There is nothing wrong with tuning on the street and a uego if thats all you got. Just don't insult people's intelligence and say your way is the only way or dis professional shops who want to tune professionally on the dyno because you don't have one.
mmlvmm
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From: 2003 Evo VIII - Silver
Originally posted by evo3323232
Al, there is something you are doing different to eat all that damn fuel. This **** is not that hard we have 3 things, boost, timing, and fuel that's it. You HAVE to be hitting the timing hard to need all that fuel man that's all I am saying because we know it's not the boost because you say you run less boost with more power so it's not boost right? Next is fuel and we know you are running out of that so what is left? Timing right? This stuff's not that hard man.
Al, there is something you are doing different to eat all that damn fuel. This **** is not that hard we have 3 things, boost, timing, and fuel that's it. You HAVE to be hitting the timing hard to need all that fuel man that's all I am saying because we know it's not the boost because you say you run less boost with more power so it's not boost right? Next is fuel and we know you are running out of that so what is left? Timing right? This stuff's not that hard man.
Obviously its the a/f ratios being rich that are requiring more fuel and more injector
As a result of the richer a/f we can run a bit more timing safely
Richer a/f and more ign timing = lower egt and safer