Title: boost
Post by: yonner on June 06, 2004, 12:48:21 PM
Post by: yonner on June 06, 2004, 12:48:21 PM
i know u aint gona have a clue waht im saying but il try my best lol
ok in my car is a boost controler when it is at 0 i am guesing that it is at stock boost and when u raise it im guesing the boost rises but what i want to know is how douse the engin run smothly with hight boost without needing a remap every time u icnrease it i am askin this because i beleve that our engin blew as a result of to mutch air and not enugh fule but anyway the engin shud be out within the next week and when it goes back in it will be joind buy a pfc and posibly a pfc boost controler
ok in my car is a boost controler when it is at 0 i am guesing that it is at stock boost and when u raise it im guesing the boost rises but what i want to know is how douse the engin run smothly with hight boost without needing a remap every time u icnrease it i am askin this because i beleve that our engin blew as a result of to mutch air and not enugh fule but anyway the engin shud be out within the next week and when it goes back in it will be joind buy a pfc and posibly a pfc boost controler
Title: boost
Post by: gsb876 on June 06, 2004, 01:00:01 PM
Post by: gsb876 on June 06, 2004, 01:00:01 PM
Right, to run high boost the car must be remapped as such to allow the high boost to run you need the correct fueling, if enough fuel is not being drawn you cannot run high boost levels as the result will be detonation.
A way to counter this is to have a Power FC as there is a knock rating given (detonation level), once you can see where that is you know when to back off.
I didn\'t run my car at stock as require possible remap, which i will be looking into after a dyno session next saturday where i will attempt to run high boost.
Bad news is that if you require more fuel then you may require not just a remap but also larger injectors and a bigger fuel pump.
See what may....
A way to counter this is to have a Power FC as there is a knock rating given (detonation level), once you can see where that is you know when to back off.
I didn\'t run my car at stock as require possible remap, which i will be looking into after a dyno session next saturday where i will attempt to run high boost.
Bad news is that if you require more fuel then you may require not just a remap but also larger injectors and a bigger fuel pump.
See what may....
Title: boost
Post by: gaz 7470 on June 06, 2004, 03:16:02 PM
Post by: gaz 7470 on June 06, 2004, 03:16:02 PM
hi whats the safe reading on the knock fc display i ask this because i was not sure what is was .ive had a readout once of 61 knock was i pushing too much ?
Title: boost
Post by: gsb876 on June 06, 2004, 03:20:14 PM
Post by: gsb876 on June 06, 2004, 03:20:14 PM
61 knock reading!!!!!
ANYTHING 40 OR OVER IS DETONATION ZONE!!!:eek:
ANYTHING 40 OR OVER IS DETONATION ZONE!!!:eek:
Title: boost
Post by: maximtaylor on June 06, 2004, 04:12:11 PM
Post by: maximtaylor on June 06, 2004, 04:12:11 PM
I wouldn\'t rely too much on what that knock sensor tells you, it has a nasty tendency to pick up all sorts of noise, especially on a trailing throttle.
I only take notice of it only under boost, and even then only as a very rough guide.
Max
I only take notice of it only under boost, and even then only as a very rough guide.
Max
Title: boost
Post by: gsb876 on June 06, 2004, 04:19:14 PM
Post by: gsb876 on June 06, 2004, 04:19:14 PM
Aye .............but its better to have some indication than nothing and then BANG, would you agree????
Although my knock reading never moves off 1???:confused:
Although my knock reading never moves off 1???:confused:
Title: boost
Post by: 20B_boy on June 06, 2004, 04:29:37 PM
Post by: 20B_boy on June 06, 2004, 04:29:37 PM
Used to see 90s and 100s when I was running POwer FC, no worries. And motor still going 25K miles later...
Datalogit designers run their cars totally dismissive of the PFC knock reading from what I\'ver read i.e. ignoring readings of 130+
Make what u will of that...
Datalogit designers run their cars totally dismissive of the PFC knock reading from what I\'ver read i.e. ignoring readings of 130+
Make what u will of that...
Title: boost
Post by: maximtaylor on June 06, 2004, 06:01:33 PM
Post by: maximtaylor on June 06, 2004, 06:01:33 PM
Could be it\'s not working if it never goes above 1?
Max
Max
QuoteOriginally posted by gsb876
Aye .............but its better to have some indication than nothing and then BANG, would you agree????
Although my knock reading never moves off 1???:confused:
Title: boost
Post by: gsb876 on June 06, 2004, 06:15:36 PM
Post by: gsb876 on June 06, 2004, 06:15:36 PM
A very good point and have already thought about that, everything else reads ok, i am booked in for servicing soon and the knock reading will be checked.
Lets see what the score is.:confused:
Lets see what the score is.:confused:
Title: boost
Post by: gaz 7470 on June 06, 2004, 08:57:22 PM
Post by: gaz 7470 on June 06, 2004, 08:57:22 PM
hi again well my cars been modified its got straight through exhaust from turbos back,airfilters and the apexi ecu and commander but has not been mapped do u guys think im in need of mapping and if so anyone no of a place near to where i am in the westmids (maybe scooby si could help me on that one as your not to far from me mate)
Title: boost
Post by: iaint on June 06, 2004, 09:12:23 PM
Post by: iaint on June 06, 2004, 09:12:23 PM
The Apexi\'s base map (default setting) is very rich on fuel and should be fine for normal boost levels (even oksy for running 0.1 bar higher than stock).
It\'s always worth getting it mapped though - it\'ll develop a bit more power, use less fuel, be more responsive and give piece of mind.
I had mine mapped by WGT up in Cheshire and it\'s been amasing since then - smooth power delivery and hardly notice the transition on the turbos now!
If your ECU was 2nd-hand then it may have already had a map on it and should be reset to be safe. Depends if you know the car\'s history (i.e. did you get it with the ECU already on it, did you do the mods since then, etc.).
Iain
It\'s always worth getting it mapped though - it\'ll develop a bit more power, use less fuel, be more responsive and give piece of mind.
I had mine mapped by WGT up in Cheshire and it\'s been amasing since then - smooth power delivery and hardly notice the transition on the turbos now!
If your ECU was 2nd-hand then it may have already had a map on it and should be reset to be safe. Depends if you know the car\'s history (i.e. did you get it with the ECU already on it, did you do the mods since then, etc.).
Iain
Title: boost
Post by: scooby_si on June 06, 2004, 09:15:22 PM
Post by: scooby_si on June 06, 2004, 09:15:22 PM
Still not entirely local but yer nearer than i am & he is good for mapping said power FC not to mention all the other goodies but Pip\'s yer man at WGT http://www.wgtautodevelopments.co.uk/ (http://www.wgtautodevelopments.co.uk/) but a short blast up the M6.....
It shouldn\'t be running too lean at a guess as base map is pretty rich to say the least but not worth risking IMO
Si
It shouldn\'t be running too lean at a guess as base map is pretty rich to say the least but not worth risking IMO
Si
Title: boost
Post by: scooby_si on June 06, 2004, 09:17:02 PM
Post by: scooby_si on June 06, 2004, 09:17:02 PM
i
must
type
quicker
lol
Si
must
type
quicker
lolSi
Title: boost
Post by: gsb876 on June 06, 2004, 09:42:28 PM
Post by: gsb876 on June 06, 2004, 09:42:28 PM
QuoteOriginally posted by gaz1011
hi again well my cars been modified its got straight through exhaust from turbos back,airfilters and the apexi ecu and commander but has not been mapped do u guys think im in need of mapping and if so anyone no of a place near to where i am in the westmids (maybe scooby si could help me on that one as your not to far from me mate)
Hi Gaz if you get a chance we\'ve got the midlands meet nx sunday pop down only what 35mins from Brum to Derby?
If you\'re interested let me know and i will come out and guide you into Derby if need be mate, what you think?? we dont get many rx7\'s.
Gurj
Title: boost
Post by: yonner on June 06, 2004, 10:23:54 PM
Post by: yonner on June 06, 2004, 10:23:54 PM
well to be honest i think the rx7 is fast enuf for disnow bair in mind that we aitn even had it running we are just gona drop this engin in it and fling it about with a larger intercooler aloy rad and an induction kit in for disnow and then next winter operation paint job and singel turbo so for now its jsut going to be stock and only reaon for front mount and intake is because we like the larger space left when aftermarket oens are fited thx for the help guys muchos apreciated
oh and 2 nice shiny seats in the front aswell coz we cant fit out fet arses in those thigns we have the now ;)se u guys at caril in the summer
oh and 2 nice shiny seats in the front aswell coz we cant fit out fet arses in those thigns we have the now ;)se u guys at caril in the summer
Title: boost
Post by: gaz 7470 on June 07, 2004, 12:55:48 AM
Post by: gaz 7470 on June 07, 2004, 12:55:48 AM
hi gurj yeah next sunday sounds good what time is the meet ?.may have the girlfriend with me but she\'s well into rexs was her idea for me to get one (the advantage of that being i dont get moaned at when spending my cash on the rx lol)
Title: boost
Post by: gsb876 on June 07, 2004, 02:00:27 AM
Post by: gsb876 on June 07, 2004, 02:00:27 AM
Good stuff Gaz,
the meets usually from 12pm - 4pm and is a mixture of all things jap, usual skylines, evos, scoobies and only ever a few rx7\'s usually just mine and scoobi Si\'s. Theres a pub across the road so plenty to drink and eat.
Do you know the way?? if not let me know or pm your phone number and i will call you later in the week to see which way you would come, and i can meet up with you and guide you there if you need to.
See you soon
Gurj:wave
the meets usually from 12pm - 4pm and is a mixture of all things jap, usual skylines, evos, scoobies and only ever a few rx7\'s usually just mine and scoobi Si\'s. Theres a pub across the road so plenty to drink and eat.
Do you know the way?? if not let me know or pm your phone number and i will call you later in the week to see which way you would come, and i can meet up with you and guide you there if you need to.
See you soon
Gurj:wave
Title: boost
Post by: scooby_si on June 07, 2004, 08:22:02 AM
Post by: scooby_si on June 07, 2004, 08:22:02 AM
or all going well & i have me car back in time (& i dont decide to go even further up north to the big scooby meet) can meet ya & go up there doing the convoy thing :cool
Si
Si