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Old 06-30-2014, 01:16 PM   #11 (permalink)
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You could just put a double shafted electric motor inline with the XMSN.

A word of note my 1989 diesel suburban with a 5sp manual gets mid 20's out of the box.

If you want/need a suburban consider a low powered diesel motor (like the C-code 6.2 or 4bt), couple with a manual transmission, high rear end gears.

Get that working and learn to hypermile then add your electric drive, a 4wd t-case like they used in the old days with lockup should be able to allow you to clutch and unclutch the ev side safely, just a lot of gear noise from having the splines the wrong way.

Cheers
Ryan

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Old 06-30-2014, 06:06 PM   #12 (permalink)
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Thanks for your reply Ryan. The inline idea was already done back in 2010. It was done by this guy and it worked quite well:

David Hrivnak's 2004 Chevrolet Avalanche

I was able to talk to him about a year ago and he explained a little on how he did it. Pretty straightforward. I still want to do it another way as well.

There are about 3 other ways others have done this. I know this is a hypermiling forum but I can provide links if anyone wants to see them. I just believe they were pretty awesome approaches and I have interest in this as well as what hypermilers do.

As for the diesel, I know that will be too involved for me.

Thanks again
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Old 07-01-2014, 01:17 PM   #13 (permalink)
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Although the diesel is a nice touch the manual transmission is not really an option.

Your truck can be flat towed up to 50mph (if its like the 1993 2wd I have rusting here)

So in EV mode you would need to always drive below 50mph or risk wearing your transmission over time.

Also your truck would be more efficent with a 5sp stick anyway.

Good Luck
Ryan
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Old 07-01-2014, 03:46 PM   #14 (permalink)
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A Detroit diesel would probably work too. But being two stroke, you gotta drive em like you hate em or the engine wears faster.

Just a shameless plug for my favorite diesel of all time
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Old 07-02-2014, 10:31 PM   #15 (permalink)
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If you could deal with the integration of the engine management hardware of a Tahoe hybrid into your Suburban to use the Tahoe's hybrid drive system, that would probably be the most straightforward option, altough might be not so easy to find one for scrap. On a sidenote, this system was also used by other manufacturers, most notably Mercedes-Benz for the S-Class and ML-Class.

Anyway, you should check this thread to take some inspiration:
http://ecomodder.com/forum/showthrea...uck-22080.html

Well, I guess if you retain the IFS you'd have more options for the electric FWD setup, eventually just using a direct-driven motor without a front differential, basically to provide auxiliary traction in rough terrain or for heavier towing.

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