2.5L Petrol daily driver mpg - Page 2 - Defender Source
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  #21  
Old January 22nd, 2016, 01:58 PM
DocB
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David
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Just brainstorming while I'm at work, I've been reading the the discovery's had either a 1.2:1 or 1.4:1 gearing on their transmissions. There's a few in the junk yards around here. Would that be a possibility for a swap and would it be a bolt on conversion?
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  #22  
Old January 22nd, 2016, 02:03 PM
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Discoveries all have 1.2. It will be too much for that engine, IMO. "Maybe" okay if you stick with the little tires. It will bolt in though.
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  #23  
Old January 22nd, 2016, 02:06 PM
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Quote:
Originally Posted by Red90 View Post
Discoveries all have 1.2. It will be too much for that engine, IMO. "Maybe" okay if you stick with the little tires. It will bolt in though.

Damn. I've been searching around and I can't find any 1.4:1 gears for sale. A few companies sell the 1.2 gears, or options to rebuild with them, but the 1.4 seems absent


Just need to figure something out considering that I'm using 120+ gallons a month to drive to work lol
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  #24  
Old January 22nd, 2016, 02:13 PM
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Used, you are best finding someone that is swapping to a 1.2 Lots of TDI guys go that way.

Gear set is just OEM standard parts that you could buy anywhere if you know what you are doing. Ashcroft will do a kit to make life easier.
Ashcroft Transmissions

1.410 Gear Ratio LT 230 Hi Range
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  #25  
Old January 22nd, 2016, 02:30 PM
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Quote:
Originally Posted by Red90 View Post
Used, you are best finding someone that is swapping to a 1.2 Lots of TDI guys go that way.

Gear set is just OEM standard parts that you could buy anywhere if you know what you are doing. Ashcroft will do a kit to make life easier.
Ashcroft Transmissions

1.410 Gear Ratio LT 230 Hi Range
Damn, I checked Ashcroft too lol. I searched LT77 though, only thing I could find is for the LT230. Is that compatible?
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  #26  
Old January 22nd, 2016, 02:31 PM
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The LT77 is the gearbox. The LT230 is the transfer case. The gear change is in the transfer case.
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  #27  
Old January 22nd, 2016, 02:36 PM
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Originally Posted by Red90 View Post
The LT77 is the gearbox. The LT230 is the transfer case. The gear change is in the transfer case.
Wow that explains a lot. I've been an American muscle car guy my whole life, I'm new to the whole 4x4 thing lol. Thanks for the help. Seems like the gears and tires will run about $1k+ shipping, but I'd save that in gas mileage in 6 months lol.

Any experience swapping those gears? I'm comfortable dropping the t-case, but never messed with internal gearing before. Ashcroft has a instruction post but the photos wont work on my work computer
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  #28  
Old January 22nd, 2016, 02:39 PM
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It is not super hard as long as gears and bearings don't scare you. It is a very nicely designed transfer case.
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  #29  
Old January 23rd, 2016, 10:50 AM
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Originally Posted by Red90 View Post
It is not super hard as long as gears and bearings don't scare you. It is a very nicely designed transfer case.
I think it would be better to have someone do it lol. I'm usually up for the challenge but it looks like you need to press out bearings and other things that I wouldn't have the tools for. Doing some shopping around and saving up for the tires now. Maybe I can convince the wife to gift me some 1.4:1 gears for my birthday hahaha
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  #30  
Old January 23rd, 2016, 11:09 AM
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1.410 Gear Ratio LT 230 Hi Range
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  #31  
Old January 23rd, 2016, 11:15 AM
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Ashcroft has them for 230, any reason not to go with those? It's about half the price
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  #32  
Old January 24th, 2016, 02:42 PM
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Well that's confidently labeled lol
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  #33  
Old January 24th, 2016, 02:42 PM
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Oh and apparently I have a PTO
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  #34  
Old February 22nd, 2016, 02:34 PM
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After I pulled the carb apart and soaked the jets in petrol for a few hours, I'm getting just over 20k per gallon. Just filled her up today and I'll see how long this tank lasts, but it's already looking like at least double my gas mileage!
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  #35  
Old February 22nd, 2016, 02:39 PM
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thats awesome. I would love another 2.5 petrol. Great little engine.
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  #36  
Old February 22nd, 2016, 03:05 PM
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thats awesome. I would love another 2.5 petrol. Great little engine.
Now that I've put in the work, I really like it. Much better on the highway than my friends in their 2.5td d90, and it's my daily driver!
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  #37  
Old February 22nd, 2016, 03:11 PM
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... I'm getting just over 20k per gallon.....
what does that mean?
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  #38  
Old February 22nd, 2016, 03:16 PM
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what does that mean?
20 kilometers per gallon, I assume. 12.5 miles per gallon.
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  #39  
Old February 22nd, 2016, 03:52 PM
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Originally Posted by Red90 View Post
20 kilometers per gallon, I assume. 12.5 miles per gallon.
About 12.5 right now yea, just an estimate though. I haven't gone through a full tank after the repairs, but I'm hoping that at the end of the week I'll end up with at least 15+ mpg
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