fitted new exhaust, it's given me 30% better fuel economy shocker!!!!
24-11-2009, 10:41 AM
#1
fitted new exhaust, it's given me 30% better fuel economy shocker!!!!
i won't rev above 4200 rpm when it's in park or neutral, it just seems to be hitting the limiter
didn't used to do this before and i've not been able to stick the tester on it
but
on the road, it goes right round to the red line in both 1st and 2nd (not gone any faster)
so, what gives?
the only other mod it's got is a k&n 57i kit
didn't used to do this before and i've not been able to stick the tester on it
but
on the road, it goes right round to the red line in both 1st and 2nd (not gone any faster)
so, what gives?
the only other mod it's got is a k&n 57i kit
Last edited by dojj; 25-11-2009 at 11:52 AM.
24-11-2009, 12:08 PM
#5
Advanced PassionFord User
mk3 mondeo auto andy. whats the problem then dojj? if it's ok when your driving. why would you want to rev the balls off it in neutral or park?
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24-11-2009, 01:22 PM
#10
PassionFord Post Troll
24-11-2009, 02:24 PM
#14
when i fitted the air filter, i gave it beans and the noise was great, but it was mainly to make sure that i had everthing plugged up and no leaks
and again with the exhaust to see if anytihng had gone wrong
but this time around it hits the limiter at 4200
i was thinking logically in that the combined air filter and exhuast has made the engine run a little lean and so it won't rev beyond the 4200 rpm mark as it's going to run too lean for the cat, but out on the road it runs fine and dandy
theni thought it was something to dow ith the disconnection of, what i can only describe, as the post cat lambda, asuming it's got one before and after because there are 2 thingies in the exhuast with wires in them that look like lambda sensors
and, more improtantly, what if i had a car with anti lag or soemthing and it oculdn't flame out
and again with the exhaust to see if anytihng had gone wrong
but this time around it hits the limiter at 4200
i was thinking logically in that the combined air filter and exhuast has made the engine run a little lean and so it won't rev beyond the 4200 rpm mark as it's going to run too lean for the cat, but out on the road it runs fine and dandy
theni thought it was something to dow ith the disconnection of, what i can only describe, as the post cat lambda, asuming it's got one before and after because there are 2 thingies in the exhuast with wires in them that look like lambda sensors
and, more improtantly, what if i had a car with anti lag or soemthing and it oculdn't flame out
25-11-2009, 11:58 AM
#15
just collected the car and the exhuasht has made SUCH a HUGE diference it's UNREAL!!!!!!!!
i'm shocked
the trip back, which i've done plenty of times, normally gives me between 23-25 mpg as it's a bit A40 and then a bit traffic etc and i was flaberghasted to see the trip computer reading 32 mpg when i got back home!!!!
the vi moniter has also shown that i use less throttle and the load thingy meter shows i'm using about 10-15% less load on the engine
not to mention it seems to shift up quicker through the gears, as in earlier, it woldn't go into 4th until at least 40 mph nbeofre, but now it's clicking up at 35 or so in some case
and its not like i've driven differently, i still drive it up to 3k prm before it changes up and stuff, and it doesn't feel any different other than it seems to have lost about 500kgs of weight
it feels like i've had a trailer on the back unhooked, or the handbrake is off now, it's immense!
and, seeing as i've done such a good job of talking about just something as simple as an exhaust, it woul dbe rude of me not to tell you who i got it from
so step forward and take a bow j p exhausts
http://www.jpexhausts.co.uk/index.htm
i'm shocked
the trip back, which i've done plenty of times, normally gives me between 23-25 mpg as it's a bit A40 and then a bit traffic etc and i was flaberghasted to see the trip computer reading 32 mpg when i got back home!!!!
the vi moniter has also shown that i use less throttle and the load thingy meter shows i'm using about 10-15% less load on the engine
not to mention it seems to shift up quicker through the gears, as in earlier, it woldn't go into 4th until at least 40 mph nbeofre, but now it's clicking up at 35 or so in some case
and its not like i've driven differently, i still drive it up to 3k prm before it changes up and stuff, and it doesn't feel any different other than it seems to have lost about 500kgs of weight
it feels like i've had a trailer on the back unhooked, or the handbrake is off now, it's immense!
and, seeing as i've done such a good job of talking about just something as simple as an exhaust, it woul dbe rude of me not to tell you who i got it from
so step forward and take a bow j p exhausts
http://www.jpexhausts.co.uk/index.htm
25-11-2009, 12:57 PM
#16
fuck me, get them to fit an exhaust to rod tarrys saff, that will be doing 290 no problem after then....
anyone else think all that cant be down to just the exhaust? or was it THAT fucked it did, and Dojj should have changed it about 10,000 miles ago??
anyone else think all that cant be down to just the exhaust? or was it THAT fucked it did, and Dojj should have changed it about 10,000 miles ago??
25-11-2009, 03:24 PM
#18
i've not done 10k in the car in 3 years mate so that would have been a bit silly
the exhaust has been bent for about a year now, so i just bit the bullet and ordred one and it really has made a huge difference
ok, so the last run that normal does me a 17-19 mpg return has just done me a 24 and a bit so the figures are doing the talking
will have to see what it asys when i get to the pub meet tonight to give it some real world credability, but that's going to be mainly motorway so if it makes less than the usual 33 there and back at normal driving speeds i'll know for sure
the exhaust has been bent for about a year now, so i just bit the bullet and ordred one and it really has made a huge difference
ok, so the last run that normal does me a 17-19 mpg return has just done me a 24 and a bit so the figures are doing the talking
will have to see what it asys when i get to the pub meet tonight to give it some real world credability, but that's going to be mainly motorway so if it makes less than the usual 33 there and back at normal driving speeds i'll know for sure
25-11-2009, 05:45 PM
#21
20K+ Super Poster.
The mondy auto box DOES have a limiter, well the ecu for the box does anyway, why it was not working before I can't say, but the 4200 is normal, otherwise it can damage certain internal components in the box.
tabetha
tabetha
25-11-2009, 06:05 PM
#22
JP exhausts
not far from me, only in Macclesfield
i bought a car off rick's (workshop manager iirc) grandmother
my dad had an exit pipe made for his sieries 3 landy, amazing quality work, not cheap but WELL worth it!!!
did all the work on drew bowers Nemesis and wildcat trucks. saw one of them in there a while back, eas a bare rolling shell but already looked incredible.
the mini will be going in for a custom manifold when its all up and running to replace the hacked up and stuck back together c20xe one which is currently on there
not far from me, only in Macclesfield
i bought a car off rick's (workshop manager iirc) grandmother
my dad had an exit pipe made for his sieries 3 landy, amazing quality work, not cheap but WELL worth it!!!
did all the work on drew bowers Nemesis and wildcat trucks. saw one of them in there a while back, eas a bare rolling shell but already looked incredible.
the mini will be going in for a custom manifold when its all up and running to replace the hacked up and stuck back together c20xe one which is currently on there
Last edited by fraser9764; 25-11-2009 at 06:08 PM.
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