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Thread: Okay maybe a 2.25 may have to do....

  1. #1

    Default Okay maybe a 2.25 may have to do....

    i am having a hard time finding the 2.5GM litre engine for the Robert Davis adaptation kit up here in Canada so I may possibly need to just do up my own 2.25 rover engine. I will look further into finding the right 2.5 GM but for some reason wreckers and engine rebuild shops don't have the type I need.
    So............ an 8:1 head will help with horse power but much else? I know it already has a rebuilt Solex so that is a little better, reground cam to the specs of a 2.5 litre rover and K&N air filter I have heard helps but anything else?
    Any advice on the 2.25 would be great.

  2. #2
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    Kingsport
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    Default

    If you've gone to an 8:1 head and a 2.5 cam, I'd go w/ a 2-bbl Weber on a Pierce manifold. That, coupled with a non-restrictive exhaust, is about the best you're going to get w/ the 2.25...
    -L

    '72 SIII SW 88"
    '60 SII 88" RHD

  3. #3
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    Nov 2006
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    Larger diameter exhaust, properly set up Rochester carb, 2.5 cam, electronic ignition. You can also raise compression to 9:1, fit headers, port and polish the head. All the modifications cost $ and have their pluses and minuses.

    some info on various carbs:

    http://path4x4.com/fotos/Carburadores.htm
    1965 SIIa 88",1975 Ex-MOD 109/Ambulance, 1989 RRC, blah, blah, blah...

    Land Rover UK Forums

  4. #4

    Default rochester...

    can i get the rochester from a wreckers and a rebuild kit from lordco?and a large diamter exaust from...get on made locally?

  5. #5

    Default Add overdrive. Upgrade brakes.

    If you do all of that, you might want to look at adding overdrive or 5 speed to take advantage. The stock brakes are adequate for stock engine. I am not sure they would be for a lot more top end speed. We have brand new rebuilt engine .010 over, 8.5:1, 2.5 cam, some head port polishing, no headers, but larger exhaust and flowmaster muffler. Until we get overdrive or 5 speed, not much difference in top end speed is practical for us. It is just revved up to much after about 55 mph in 4th gear from my perspective. There is pedal left, but rpms seem too high beyond that speed, may not be, but feels and sounds that way. I might just be chicken to go faster since I know who put it back together from parts laying everywhere in the garage! You get used to steady plodding at 55 after awhile! Just FY evaluation. Keep us posted on what you end up doing and results.
    Greg

  6. #6
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    Quote Originally Posted by northshorelocal
    can i get the rochester from a wreckers and a rebuild kit from lordco?and a large diamter exaust from...get on made locally?
    British Pacific used to sell Rochesters- check their site. They are pretty common too, post over on Guns and Rovers- quite a few guys there have used them.
    1965 SIIa 88",1975 Ex-MOD 109/Ambulance, 1989 RRC, blah, blah, blah...

    Land Rover UK Forums

  7. #7
    Join Date
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    Flagstaff, Arizona
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    Default

    Quote Originally Posted by yorker
    some info on various carbs:

    http://path4x4.com/fotos/Carburadores.htm
    Shades of the past! I'm glad someone captured that British Pacific FAQ page and kept it on line. There was a lot of good information in the old British Pacific FAQ & tech section web pages. I was very unhappy when I was instructed to delete the British Pacific FAQ and tech web pages. BP concluded that they didn't have enough time to keep these sections current and better to delete them than have customers making decisions based upon obsolete info.

    The best I could do at the time was save the Series tech spec web page.

    http://www.landroverparts.us/seriesL...Rovertech.html

    I built a single page that had the tune up specs, torque specs, fluid capacities, types & change intervals and oddball stuff like which bulbs go where.

    Thanks to whomever for saving that Series carb. FAQ page. It is the only one with BP's jetting recommendations for the Weber carbs.

  8. #8
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    Quote Originally Posted by TeriAnn
    Thanks to whomever for saving that Series carb. FAQ page. It is the only one with BP's jetting recommendations for the Weber carbs.
    I don't know who saved it, I ran across it a while ago while searching for some5thing and I bookmarked it. The Weber jet info is great- I had looked for that info for a LONG time- too bad I found that after I had swapped out my Weber.

    Hopefully someone can use the info there and mirror the info on their site too in case that one goes down.
    1965 SIIa 88",1975 Ex-MOD 109/Ambulance, 1989 RRC, blah, blah, blah...

    Land Rover UK Forums

  9. #9
    Join Date
    Nov 2006
    Location
    Flagstaff, Arizona
    Posts
    1,087

    Default

    Quote Originally Posted by yorker
    I don't know who saved it, I ran across it a while ago while searching for some5thing and I bookmarked it. The Weber jet info is great- I had looked for that info for a LONG time- too bad I found that after I had swapped out my Weber.

    Hopefully someone can use the info there and mirror the info on their site too in case that one goes down.
    I'll seak it into my LR web site so it won't be lost again. Thanks again for finding it.

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