why does everyone change the MAP PE enable higher with cam?
Thread Starter
Joined: Mar 2003
Posts: 8,319
Likes: 1
From: North Carolina
ok thats what i was thinking, the way people make it sound is after cam install this is a must, but it isnt. just depends when you want pe, i have mine set to 75, which is also my high map ltft cell number. ill leave it like this until i can get some more ve tuning done and then ill set it where i woudl like it for moderate accel to maybe kick in some pe. this is condition one of the 2 conditions that must me met for pe, the other being throttle position. if this map value is reached then the next thing the computer looks for if TPS to be above the set values, correct?
Originally Posted by WS6FirebirdTA00
kicking in prematurely? this is what i posted for people say this but the stock setting is 15 kpa, the stock cam idles at 30 kpa, most of the cells i see when cruising are 20's so stock cam or big cam pe will enable the same if its set at 15 kpa.
what is your reason for it "kicking in prematurely" because i disagree with this and this is what everyone says. stock cam and my f13 both see above 15 kpa cruising, so the only setting turning on pe is throttle %, not the pe, since its always over that except on decel. raise the limit and get better fuel economy. lower it and get some more power on part throttle accel. put it up to tune ve easier. those are the 3 things i see with changing it, and thats it
what is your reason for it "kicking in prematurely" because i disagree with this and this is what everyone says. stock cam and my f13 both see above 15 kpa cruising, so the only setting turning on pe is throttle %, not the pe, since its always over that except on decel. raise the limit and get better fuel economy. lower it and get some more power on part throttle accel. put it up to tune ve easier. those are the 3 things i see with changing it, and thats it
Therefore, by raising the MAP enable limit, you can prevent PE from being activated where you don't want it to be activated.
Both conditions have to be met for PE to enable, so I just left mine set @ 15 kPa.
Under heavy throttle transients, I wanted my PE to enable sooner, so I messed with the TPS% table as well as the enrichment rate. It feels way better now...kinda like it did when I was tuning in open loop since it gets the fuel just like it was (since I was tuning at WOT in Open Loop SD).
Under heavy throttle transients, I wanted my PE to enable sooner, so I messed with the TPS% table as well as the enrichment rate. It feels way better now...kinda like it did when I was tuning in open loop since it gets the fuel just like it was (since I was tuning at WOT in Open Loop SD).
I'm away from home right now, but I can send you my current .bin if you want when I get back Wednesday evening...messing with the enrichment rate seemed to help the most. I was finding that I was having to set the PE higher than I should to get the desired AFR at WOT. I'm thinking it wasn't coming on fast enough through the enrichment rate...
Originally Posted by MeentSS02
I'm away from home right now, but I can send you my current .bin if you want when I get back Wednesday evening...messing with the enrichment rate seemed to help the most. I was finding that I was having to set the PE higher than I should to get the desired AFR at WOT. I'm thinking it wasn't coming on fast enough through the enrichment rate...
Yeah, I'll send you guys my current .bin when I get back tomorrow evening...hopefully Thursday at the latest.
I went in and edited my TPS% enable tables as well...I haven't looked at one for the ZO6, but I just made up values that made it come on sooner. I'm really liking the way the car is driving. Way more responsive when it is go time.
I went in and edited my TPS% enable tables as well...I haven't looked at one for the ZO6, but I just made up values that made it come on sooner. I'm really liking the way the car is driving. Way more responsive when it is go time.
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Verdad Gallardo Thread Starter
Joined: Mar 2003
Posts: 8,319
Likes: 1
From: North Carolina
Originally Posted by WS6FirebirdTA00
stock setting is 15 kpa, everyone says to put it to 70-75 with a bigger cam. why?
stock, pe will enable at the % throttle, you will never run under 15 kpa to disable it. so why would you want it any different with a bigger cam? or is it just somethng that would be even better with the stock cam to raise it, save gas?
i dont know but someone explain please
and what are those other settinsg on there for under map enable, in hp tuners
stock, pe will enable at the % throttle, you will never run under 15 kpa to disable it. so why would you want it any different with a bigger cam? or is it just somethng that would be even better with the stock cam to raise it, save gas?
i dont know but someone explain please
and what are those other settinsg on there for under map enable, in hp tuners
some big cam cars idle in the 65-75 kpa range (I idle at about 70 kpa)
Thread Starter
Joined: Mar 2003
Posts: 8,319
Likes: 1
From: North Carolina
yeah i know that, i idle at 55 and ive tuned cars that idles 60-65. and stock is 30. my point was the stock setting is 15 so you pretty much never go below that except on decel (if even that, that might be the lowest reading you will get) so on a stock car pe will come on when the TPS setting is reached since the map setting has been met already.
the common misconception from what i have read is after a cam install this is a must for pe to work right, and its not. you just raise is so you dont get pe earlier, however some people run wihtout changing this, car will still run and it wont mess with you. just save you some gas maybe
the common misconception from what i have read is after a cam install this is a must for pe to work right, and its not. you just raise is so you dont get pe earlier, however some people run wihtout changing this, car will still run and it wont mess with you. just save you some gas maybe
sorry to be the late one, but could I get that .bin file to take a look at too? My email is blacksaleen95@charter.net Thanks!!
Originally Posted by Blacksaleen95
sorry to be the late one, but could I get that .bin file to take a look at too? My email is blacksaleen95@charter.net Thanks!!
Originally Posted by MeentSS02
I'll try to get to it tonight...I don't have access to the file right now at work. If I don't hit you up by tomorrow, send me a PM to remind me.
