95 ron

[Seal_LCR]

I always ran my LCR on v-power because i felt it was better for the car and power. I wasn't interested in the mpg as i do about 50 miles a week. I once used the cheap stuff (as the good stuff was unavailable) and it gave me a fault code due to my sports cat. I recently had it mapped (stage 2) at stealth racing and not only did he map it on 95 ( it wan out of fuel when they had it "/ ) as he said it was best to map on 95 (obv not to get the best possible figures) but he also made it a de-cat map which meant i could now run it on cheap fuel with out the warning light coming on. Obviously i questioned the fact that 95 isn't brilliant but in his own words were.."If your just commuting then use 95, if you want to give it some beans use 98" he also said it would take 15 miles or so to adapt. Since this i have been using 95 ( Due to pressure from mrs..as i just spent 2 and a half grand on it and this saving in fuel seemed to be a little light for her ) however having read this thread i will put in some v-power and compare the mpg.. i'm currently getting 27mpg driving normal with the occasional joy ride. However if the theory is correct i can try justify the price difference to the mrs and weep the rewards of the extra horses too.. should be in the mid 290's then
Probably should note that with the better acceleration id more than likely drive more like a boy racer destroying any benefits of improved mpg ha ha

Look at is this way with the price difference you only need to do 13.1miles more on vpower for it to work out the same miles per pound as 95ron (using my figures that is) so why bother I just don't see the point? (aimed not directly at you but to the whole thread)

Now can everyone stay on topic..........ummmmm topics

 

[Wolvo-Oleg]

Fuse bars!!! I thinkg it was fuse, with all the little bits of fruit and but in? That **** must have been one of your five a day looking back?

 

[toocoolpash]

Don't get me wrong i would always run it on vpower given i had a choice however when u spend 2.5k fixing and modifying it when the mrs is pregnant and losing the plot at the cost, keeping my balls by putting in cheap fuel seemed a good compromise!
However given the extra mpg figures the mrs seems to be backing down now..my own fault for only ever mentioning the extra power i got ( she really isnt impressed by high figures, shock) and the basic fact that i told her in the first place i could now run it on 95 due to the decat map!
Will test the mpg and hope it adds up

 

[Wolvo-Oleg]

I'm slightly confused about the whole 95 ron map thing to be honest.. Doesn't sound a great concept to me

 

[Seal_LCR]

Fuse bars!!! I thinkg it was fuse, with all the little bits of fruit and but in? That **** must have been one of your five a day looking back?

Not as good as yorkie biscuit and raisin I'm afraid!

 

[car.crash]

Don't mean to be a kill joy but are you guys trashing the thread because your not interested in it or for another reason. It's quite a boring subject I know but it's generating good responses yet you keep trying to kill it.

 

[Seal_LCR]

I do believe I have inputted some good figures and some great chocolate bars

 

[toocoolpash]

To be honest i wasn't really sure why he preferred to map it on 95 but its my own fault for not having enough fuel in the first place! I did ask why he preferred doing it on 95 and if i remember correctly his theory is you can only improve the power by putting in better octane stuff as opposed to if i had to put the cheap stuff in and it was mapped on 98. Some thing like that anyways! I wasnt really bothered tbh tho as i still got good figures knowing they could only improve. Was also busy taking in alot of info about what had gone wrong with my gearbox and what they had to do with fixing it to worry about it lol!!

 

[Steely]

thats because your knock sensor **** itself and instantly adapted or it would have been limp mode/engine damage.

then stick vpower in... the ecu doesnt know this and still thinks the fuel is 95. it gradually adapts over time.

second this,

adapting from 98 to 95 will be instantaneous due to the ecu picking up knock,


adapting from 95 back to 98 the ecu has to re learn the boundary over small increments/ degrees before top dead centre to just before knock appears if at all,

 

[DOLBY]

This thread is sooo funny. SOS it went off subject but tbh it's been asked so many times, the subject has kinda got stale.

Hmmm on the subject of 'stale'. How about stale rock from the seaside. Ooooh it's nice when it gets soft. Or..............shortbread cookies?? Mamma Mia come to meeee!


Sent from my iPhone when I should be working....

 

[Wolvo-Oleg]

Killing the thread? Lets have it right, we have offered the most factual responses in here, and when some thing needs answering we are, I'd like to think we've been quite helpful?

We're just multi tasking man, don't fret.

Quarter backs?

 

[Wolvo-Oleg]

second this,

adapting from 98 to 95 will be instantaneous due to the ecu picking up knock,


adapting from 95 back to 98 the ecu has to re learn the boundary over small increments/ degrees before top dead centre to just before knock appears if at all,

This would also stand for my findings.

98 - 95, instant drop in MPG.

95 - 98, took some time to 'undo' the damage caused by the 95.

See, helpful.




Bret, YES WITH THE SHORTBREAD, nursing a chub on just thinking

 

[Wolvo-Oleg]

To be honest i wasn't really sure why he preferred to map it on 95 but its my own fault for not having enough fuel in the first place! I did ask why he preferred doing it on 95 and if i remember correctly his theory is you can only improve the power by putting in better octane stuff as opposed to if i had to put the cheap stuff in and it was mapped on 98. Some thing like that anyways! I wasnt really bothered tbh tho as i still got good figures knowing they could only improve. Was also busy taking in alot of info about what had gone wrong with my gearbox and what they had to do with fixing it to worry about it lol!!

There was a link on one of the earlier pages that suggested 98 does not increase power, 95 just decreases power. If you get me?

I.e. a car runnin 280 brake on 95, if it's designed for 95, 98 will not add power, however if it's designed for 98, running 95 will loose power.

It sounds like he's mapped your car to no longer take advantage of 98?

 

[toocoolpash]

That does make sense about 98 not adding power but 95 decreasing it. However he told me if i put the good stuff in then it would increase power which contradicts the not taking advantage on 98 hmmm

 

[Wolvo-Oleg]

I dunno mate, it was just something I read on one of the other pages, although it did make sense lol

 

[Muttley]

If it's been mapped to run on 95RON, putting 98 in will make no difference at all, except to your wallet.

 

[Seal_LCR]

There was a link on one of the earlier pages that suggested 98 does not increase power, 95 just decreases power. If you get me?

I.e. a car runnin 280 brake on 95, if it's designed for 95, 98 will not add power, however if it's designed for 98, running 95 will loose power.

It sounds like he's mapped your car to no longer take advantage of 98?

If you didn't post 100's of food related posts maybe we could find the earlier link now stop it

 

[toocoolpash]

If it's been mapped to run on 95RON, putting 98 in will make no difference at all, except to your wallet.

Are you serious? How come? I was told putting higher octane in would increase power "/

 

[mty12345]

If it's been mapped to run on 95RON, putting 98 in will make no difference at all, except to your wallet.

+1 I can't for the life of me see why he would of mapped it on 95! The original standard map is for 98 and if the engine sees 95 then it pulls the timing back, if it's mapped for 95 then the timing is going to be constantly retarded. If you then put 98 in, the timing is still set for the crap 95 octane!
I'd take it back to him and tell him you want it remapped for v-power at no extra cost! Although that being said, as you didn't supply the car with enough v-power in to do the job then i guess he could argue that you'll have to pay again. Either way your car is mapped to run on crap fuel and 98 is now going to be a waste of money mate!

 

[traumapat]

Are you serious? How come? I was told putting higher octane in would increase power "/

Because your mapper has apparently mapped it to 95 so it cant make any use of the extra ron.