Page 1 of 4 1234 LastLast
Results 1 to 15 of 58

Thread: Supra Fuel Economy Modifcations

  1. #1
    Work... what work? Club Member
    Join Date
    Aug 2016
    Location
    England - Somerset
    Posts
    271
    Feedback
    0

    Supra Fuel Economy Modifcations

    I've just blown my entire NA-T fund on a mortgage deposit and unfortunately my new commute to work is a 50 mile round trip.

    MPG is now king, is there anything I can do/buy/install that would dramatically help MPG? No suggestion is too outlandish, I'm even thinking fitting an ECU and getting an MPG focused map might be an answer, would love any insights on this.

    Has anybody fitted an MPG gauge before? There seems to be a few available but I'm slightly dubious of their effectiveness.

    Any and all help with this would be massively appreciated, I really don't want to have to buy a second 'sensible' car!

  2. #2
    Posting is my life! Club Member jackso11's Avatar
    Join Date
    Oct 2005
    Location
    England - Norfolk
    Posts
    6,263
    Feedback
    36 (100%)
    Only thing I can think of that would dramatically increase you mpg is something like a Hyundai i10.

    Mpg is not something you can worry about with a supra Iím afraid. They are not made to be a fuel efficient car.
    Autodoc - Norwich Bodywork specialists
    Web - www.autodocnorwich.co.uk
    Facebook - www.facebook.com/autodocnorwich
    Tel - 01603 780940
    Email - adam@autodocnorwich.co.uk
    Aircon regas £45 +vat

  3. #3
    '96 BPU TT Club Member Mk4Gaz's Avatar
    Join Date
    Jul 2013
    Location
    England - Essex
    Posts
    2,944
    Feedback
    14 (100%)
    Buy a prius and fit a supra body kit 👍🏻

    Sent from my SM-G950F using Tapatalk

  4. #4
    Posting is my life! Club Member jackso11's Avatar
    Join Date
    Oct 2005
    Location
    England - Norfolk
    Posts
    6,263
    Feedback
    36 (100%)
    I just noticed you said has anyone fitted an mpg gauge and wondered about effectiveness? They will be 100% effective in telling you your mpg, but they wonít make a difference in fuel economy.
    Autodoc - Norwich Bodywork specialists
    Web - www.autodocnorwich.co.uk
    Facebook - www.facebook.com/autodocnorwich
    Tel - 01603 780940
    Email - adam@autodocnorwich.co.uk
    Aircon regas £45 +vat

  5. #5
    Work... what work? Club Member
    Join Date
    Aug 2016
    Location
    England - Somerset
    Posts
    271
    Feedback
    0
    Quote Originally Posted by jackso11 View Post
    I just noticed you said has anyone fitted an mpg gauge and wondered about effectiveness? They will be 100% effective in telling you your mpg, but they won’t make a difference in fuel economy.
    I should have been more clear would something like this fit to the Supra? https://frsport.com/autometer-9105-g...CABEgLu7vD_BwE


    Unfortunately buying a second car would mean the Supra would barely get used enough to justify owning it, and that's just not an option.

    Would rather bleed £300 a month on fuel than part ways with it. But paying £1,500 to get an ECU with some map options for MPG would pay for itself very quickly (although that's probably not a thing).
    Last edited by Wonga Spar; 08-06-18 at 19:17.

  6. #6
    Posting is my life! Club Member jackso11's Avatar
    Join Date
    Oct 2005
    Location
    England - Norfolk
    Posts
    6,263
    Feedback
    36 (100%)
    Quote Originally Posted by Wonga Spar View Post
    Can't improve what you can't measure!
    Sure you can. If you improve the mpg somehow it doesnít matter if you know by how much, it is improved regardless.
    Autodoc - Norwich Bodywork specialists
    Web - www.autodocnorwich.co.uk
    Facebook - www.facebook.com/autodocnorwich
    Tel - 01603 780940
    Email - adam@autodocnorwich.co.uk
    Aircon regas £45 +vat

  7. #7
    Work... what work? Club Member
    Join Date
    Aug 2016
    Location
    England - Somerset
    Posts
    271
    Feedback
    0
    Hard to tell if driving behaviour has much benefit though without being able to get a readout. Running odemeter/fuel bills is a piss-poor way of measuring mpg.

  8. #8
    Nice Celica Bro Club Member Mike2JZ's Avatar
    Join Date
    Dec 2010
    Location
    England - Kent
    Posts
    2,042
    Feedback
    10 (100%)
    If the car is NA then you won't get much better MPG putting on an ECU.

    That said, you can get an LPG conversion kit and run the car on that. LPG is about half the price of petrol and you get similar performance.

  9. #9
    What search button? Club Member Delboy52's Avatar
    Join Date
    Mar 2009
    Location
    England - Buckinghamshire
    Posts
    1,167
    Feedback
    35 (100%)
    I work 50 miles away from home so my round trip is 100 miles a day and this is how I do it.

    1: Buy a 70mpg capable daily car.

    An LPG conversion on the Supra would give the option of cheaper fuel but not improve mpg by much like Mike says. It'd be cheaper to get a diesel something, tax it, insure it, spend only what you need to on it. Cherish the Supra for odd days and weekends.
    Mike
    Instagram - delboy52_uk
    1UZ-FE VVTi 4.0 V8. Hybrid TT auto gearbox. Carbon wide arches. Brembo SRT8 conversion.

  10. #10
    Do Luck owning Club Member Swampy442's Avatar
    Join Date
    Feb 2006
    Location
    England - Lincolnshire
    Posts
    14,073
    Feedback
    50 (100%)
    If you were going to spend 1500 quid on an ECU, spend a grand on a Skoda TDI, get 60mpg and have 500 quid change.
    The most you'll ever see from a 2JZ is 28/30mpg
    I would gladly pay you £10 to never log onto this forum again, and I am serious. Scott M

    Quote Originally Posted by Chris Wilson View Post
    I did terrible things to girls I had only just met, and they loved it.

  11. #11
    Work... what work? Club Member
    Join Date
    May 2016
    Location
    England - Bedfordshire
    Posts
    482
    Feedback
    2 (100%)
    Quote Originally Posted by Swampy442 View Post
    If you were going to spend 1500 quid on an ECU, spend a grand on a Skoda TDI, get 60mpg and have 500 quid change.
    The most you'll ever see from a 2JZ is 28/30mpg
    This! I bought a diesel as a daily... albeit a V8 twin turbo one. But a diesel nonetheless!
    1994 Stock TT Supra & N/A 5 soon to be NA-T 6 speed

  12. #12
    I'm part of the furniture Club Member Dnk's Avatar
    Join Date
    Apr 2005
    Location
    England - West Midlands
    Posts
    21,862
    Feedback
    15 (100%)
    I'd have thought the cheapest route and keep your supra is fit Lpg

    Half the price of petrol, no second car to tax or insure or service

    A Top Prins kit is £1500 + installation which looks like £500 at
    one place i found
    Last edited by Dnk; 10-06-18 at 09:43.
    Dunk

  13. #13
    Posting is my life! Club Member jackso11's Avatar
    Join Date
    Oct 2005
    Location
    England - Norfolk
    Posts
    6,263
    Feedback
    36 (100%)
    Do you really want an LPG supra though? I know it will mean cheaper running costs but it just doesnít seem right running a supra on anything other than the petrol it should.
    Autodoc - Norwich Bodywork specialists
    Web - www.autodocnorwich.co.uk
    Facebook - www.facebook.com/autodocnorwich
    Tel - 01603 780940
    Email - adam@autodocnorwich.co.uk
    Aircon regas £45 +vat

  14. #14
    I'm part of the furniture Club Member Dnk's Avatar
    Join Date
    Apr 2005
    Location
    England - West Midlands
    Posts
    21,862
    Feedback
    15 (100%)
    Quote Originally Posted by jackso11 View Post
    Do you really want an LPG supra though? I know it will mean cheaper running costs but it just doesn’t seem right running a supra on anything other than the petrol it should.
    No but if it keeps you in the Supra rather than in a $#@!ty horrid cheap diesel then
    its a no brainer in my book

    Plus do you really get 60 mpg out of one ? i had a low mileage SEAT Leon TDi, the official figures
    said it would but it never did no matter how i drove it

    Buying a cheap diesel or fitting lpg its going to take around a year if your doing 1000 miles per month
    before you start saving any cash
    Last edited by Dnk; 10-06-18 at 09:44.
    Dunk

  15. #15
    What search button? MEMBERSHIP EXPIRED jagman's Avatar
    Join Date
    Oct 2002
    Location
    (Top Secret)
    Posts
    1,730
    Feedback
    10 (100%)
    Quote Originally Posted by jackso11 View Post
    Do you really want an LPG supra though? I know it will mean cheaper running costs but it just doesn’t seem right running a supra on anything other than the petrol it should.
    The LPI system (injected lpg) would not only provide cheaper running but increase power too , allows higher boost due latent heat of vaporisation and octane level - downside is small tank capacity , not a problem in this case and upper limit on power levels due limited injector availability ,again not a problem here
    It was available as an OEM alternative on Subaru and some Australian cars - made good power too another advantage is it runs clean and keeps engines internally clean of carbon
    Dutch company does it at fairly reasonable cost , not sure if the London emission charge is still zero with LPG , but as that is going up by £12 daily within the circular in a couple of years may be a big payback

Page 1 of 4 1234 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •