phuckin Posted June 18, 2016 Share Posted June 18, 2016 Is it possible to improve acceleration and reduce petrol consumption by sensibly chipping/remapping a 2.0i petrol Legacy? Any help advice very welcome! cheers, Philip Huckin Quote Link to comment Share on other sites More sharing options...
Jay762 Posted June 18, 2016 Share Posted June 18, 2016 You may benefit a little as Subaru set the cars up to be able to deal with varying fuel qualities but I would do it in conjunction with a high flow panel filter and a less restrictive exhaust - overall power gains will be minimal though. Quote Link to comment Share on other sites More sharing options...
phuckin Posted June 18, 2016 Author Share Posted June 18, 2016 Thanks for that advice. Do you know of any good way to gain useful improvements in acceleration and fuel consumption, or am I on a Mission Impossible?:) Quote Link to comment Share on other sites More sharing options...
stants Posted June 19, 2016 Share Posted June 19, 2016 Easiest way is to drive like a granny, but that's impossible ! Is yours a n/a car ? Pretty much a waste of money for a remap as Jay says the gains would be minimal vs cost. Try using v power or a high Ron fuel it may cost a little extra every time you fill up but I found I was getting 20mpg more in my n/a car Sent from my SM-G930F using Tapatalk Quote Link to comment Share on other sites More sharing options...
david1972 Posted June 19, 2016 Share Posted June 19, 2016 20? Blimey I got an extra 1 or 2 with my outback [emoji14] Sent from my iphone using Tapatalk Do you mean 20 miles per tank? Quote Link to comment Share on other sites More sharing options...
stants Posted June 19, 2016 Share Posted June 19, 2016 Yeah sorry lol Sent from my SM-G930F using Tapatalk Quote Link to comment Share on other sites More sharing options...
phuckin Posted June 19, 2016 Author Share Posted June 19, 2016 Sorry guys but I don't know what n/a means, but it does sound as though I'll have to put up with the way it is?? Quote Link to comment Share on other sites More sharing options...
david1972 Posted June 19, 2016 Share Posted June 19, 2016 Normally aspirated is what it stands for; in the Subaru world, essentially non-turbo charged [emoji106] Sent from my iphone using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
phuckin Posted June 19, 2016 Author Share Posted June 19, 2016 Sorry guys but I don't know what n/a means Thanks, yes mine is n/a then! Quote Link to comment Share on other sites More sharing options...
Scoobyghost Posted June 19, 2016 Share Posted June 19, 2016 Naturally aspirated to be picky 😝😜 1 Quote Link to comment Share on other sites More sharing options...
JamesJDMwagon Posted June 19, 2016 Share Posted June 19, 2016 You could Take the cat out that's good for a few ponies other then that it starts to get expensive (turbo/supercharger) . Or paint the brake calipers red? 😉 1 Quote Link to comment Share on other sites More sharing options...
Scoobyghost Posted June 19, 2016 Share Posted June 19, 2016 Lowering back pressure on na can lose a bit of torque. Quote Link to comment Share on other sites More sharing options...
JamesJDMwagon Posted June 19, 2016 Share Posted June 19, 2016 Louder is faster ;) on a serious not that whole back pressure on n/a is good for torque thing is only true in the lower revs like below 2k. I think engine masters on YouTube did an in depth dyno test on it. And generally removing a cat frees up about 10-15 Bhp on a 1.6 well at least it did on my old type r engine rover (highly modified straight piped) Quote Link to comment Share on other sites More sharing options...
Scoobyghost Posted June 20, 2016 Share Posted June 20, 2016 I'm only talking from my own experience. Had a 1800 na punto(you can laugh, I do too) slapped a rude boi zorst on it and it did make 16 extra HP but dropped 10ftlb torque. Quote Link to comment Share on other sites More sharing options...
phuckin Posted June 20, 2016 Author Share Posted June 20, 2016 Thanks for that, I'm sure there is a way but maybe not as simple as chipping a diesel engine? Quote Link to comment Share on other sites More sharing options...
phuckin Posted June 20, 2016 Author Share Posted June 20, 2016 I'm not sure I want to go as far as removing the cat. Does anyone know what it is like to drive and run a Spec B Legacy with the LPG conversion.? I am thinking that might be an alternative. Quote Link to comment Share on other sites More sharing options...
Tidgy Posted June 21, 2016 Share Posted June 21, 2016 gains vs cost simply put dont bother. subaru NA engines don't tune well cos the power is derived from the turbo. Also you can;t turbo n/a's that well because they use different compression ratio to a turbo car. Save your money and when time comes buy a turbo'd one :) Quote Link to comment Share on other sites More sharing options...
phuckin Posted June 21, 2016 Author Share Posted June 21, 2016 Sound advice I am beginning to believe. Thanks for that. I think a Spec B with an LPG conversion might be the way to go. Any thoughts? Quote Link to comment Share on other sites More sharing options...
Tidgy Posted June 21, 2016 Share Posted June 21, 2016 Personally i wouldn't bother with LPG Quote Link to comment Share on other sites More sharing options...
Jay762 Posted June 21, 2016 Share Posted June 21, 2016 As above - I wouldnt bother with the LPG route as dependant on how you drive you still don't really gain anything, certainly not more power. Quote Link to comment Share on other sites More sharing options...
phuckin Posted June 21, 2016 Author Share Posted June 21, 2016 Why wouldn't you? They are carried out by Subaru dealers officially now. Quote Link to comment Share on other sites More sharing options...
stants Posted June 21, 2016 Share Posted June 21, 2016 I'd do the maths 1st how long your going to keep the car how many miles you do a year how much the conversion will cost and how long it will take to pay for its self Sent from my SM-G930F using Tapatalk Quote Link to comment Share on other sites More sharing options...
phuckin Posted June 21, 2016 Author Share Posted June 21, 2016 You're right, I would only consider an LPG conversion when it was on a car which was fun to drive and preferably when the car I bought already had it LPG converted. Quote Link to comment Share on other sites More sharing options...
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