kate205gti 4 Posted March 25, 2008 or even another ECU and what fuel economy do you get? im after a look at the Emerald map if poss? Im sure mine is set up for rudd spec!! getting 23MPG Share this post Link to post Share on other sites
Batfink 201 Posted March 25, 2008 momo's alive???!!!! Is that mpg driving slow or mildly spirited? Share this post Link to post Share on other sites
kate205gti 4 Posted March 25, 2008 yars check the llandow pics from the weekend umm its not granny speeds, but not limiter hunting either he pops a lot of flames on let off between 3-5k (and the cut off fuel on overrun button is ticked!) so thinking it may be wasting a lot out the back Share this post Link to post Share on other sites
James_R 3 Posted March 25, 2008 reset throttle pot, sounds more like the usual TPS dieing issue than map. Share this post Link to post Share on other sites
kate205gti 4 Posted March 25, 2008 ahh would that cause flames/pops? will try tonight fanku Share this post Link to post Share on other sites
Batfink 201 Posted March 25, 2008 (edited) cool. I hope you drove it rather than give it to Ant to break Have a look at the fuel map there at the flame popping range. Mine used to underfuel at 4000rpm and would pop there on overrun. Its something to do with running so lean it doesnt combust in the cylinders but ignites on the hot exhaust. Either way it sounds like a tweak on the fuelmap is a good idea. Dunno if you need to get a wideband lambda to see which way you need to turn that fuel dial edit - rereading your post. You could try turning off the fuel cut off as it may cause what I mention above?? Edited March 25, 2008 by Batfink Share this post Link to post Share on other sites
Anthony 1,000 Posted March 25, 2008 cool. I hope you drove it rather than give it to Ant to break I'll have you know that the car was in perfect working order and all the engine parts still inside the engine when I returned the keys after a few laps of Llandow Share this post Link to post Share on other sites
kate205gti 4 Posted March 25, 2008 haha! its only mi16s he breaks we think (and the occasional 8v ) but no momo stood up well to the "Shuttle Test" or the engine did at least we killed the tyres between us but they were mostly dead already im looking at the fuel map and its lots of numbers need another similar specc'd car to compare maps too! there must be another 6 on bodies somewhere? Share this post Link to post Share on other sites
Spiky 37 Posted March 25, 2008 would it not be safer to talk to your mapper? and ask them? 23 isnt that bad though, considering Share this post Link to post Share on other sites
Tom Fenton 1,519 Posted March 25, 2008 If you want my advice you won't touch the fuel map with out at the very least a wideband lamdba sensor attached and a good bit of datalogging. Comparing a "GTI6 with throttle bodies" with another "GTI6 with throttle bodies" is like comparing "some yellow cheese" with some other "yellow cheese", OK they are vaguely similar, but but when it comes down to it there are lots of differences that mean the numbers from another map are WORTHLESS. Share this post Link to post Share on other sites
Bonzai 2 Posted March 25, 2008 would it not be safer to talk to your mapper? and ask them? 23 isnt that bad though, considering my Mi still does 30 so i think shes right to be a little miffed anyways Share this post Link to post Share on other sites
welshpug 1,620 Posted March 25, 2008 it should return at least the same as a 306 gti6 if not more as its lighter. Share this post Link to post Share on other sites
kate205gti 4 Posted March 25, 2008 what is that?? my mi16 on TBs did 350 miles to a tank (not sure how many mpg that is - but was better than a standard 1.9!) i thought the gti6 engine would be similar, but seems to be doing about 250 odd its been mapped by Emerald so *should* be optimum fuelling i just need some comparisons please will email Emerald as well and see if theyve got any on their books! Share this post Link to post Share on other sites
petert 549 Posted March 26, 2008 (edited) Poor fuel economy is usually from insufficient ignition timing at cruise RPM/load points. You should have around 38 deg. when light cruising in the 2000-4000 range, progressively dropping down to something like 26 deg. at full load. If you can map the fuel by TPS and the ignition by MAP sensor, this is a lot easier to accomplish, than by TPS alone. Edited March 26, 2008 by petert Share this post Link to post Share on other sites
Alastairh 47 Posted March 26, 2008 To your original question, the only Emerald map with a standard GTi6 and boddies i can think of is the Black 306 that Anthony use to own, but that was very poppy, and not very fuel efficient but that could be to do with it being in a lardy shell... Worth a thought anyway Al Share this post Link to post Share on other sites
James_R 3 Posted March 26, 2008 In the words of Bono "give it more advance" Share this post Link to post Share on other sites
tom_m 0 Posted March 26, 2008 personally i wouldn't do anything without speaking to dave walker first. it is a 16v on bodies tho i wouldn't be expecting super good economy Share this post Link to post Share on other sites
welshpug 1,620 Posted March 26, 2008 personally i wouldn't do anything without speaking to dave walker first. it is a 16v on bodies tho i wouldn't be expecting super good economy agreed on the first part, but on the second why the hell not? (on a standard engine that is) if anything you should get more. Share this post Link to post Share on other sites
Bakes100 20 1 Cars Posted March 26, 2008 (edited) hmmm my gti6 struggles to get to 300 on a tankful. Should the gti6 be more or less economical than an mi16? Speak to Dave about it , if there is any issue with the map im sure he will sort it out for you! Edited March 26, 2008 by Bakes100 Share this post Link to post Share on other sites
kate205gti 4 Posted March 26, 2008 ahh thats interesting - thats the kind of figures im after im comparing to my mi16 on TBs which returned 350miles even with a cam Share this post Link to post Share on other sites
