World's First - '71 Series IIa w/ Chevy LTG & T56 6-Speed - Page 3 - Defender Source
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  #41  
Old July 19th, 2017, 10:15 PM
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Quote:
Originally Posted by CircuitTested View Post
We had the front & rear shafts custom made. We used the stock flanges and u-joints but had the front lengthened and the rear shortened a touch. We ended up really close to the stock location but did have to notch the front cross member as the t-case ended up being lower.
That should be no problem because with the hockey puck mounts there is very little movement... unless you use some other mounts.
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  #42  
Old July 20th, 2017, 07:12 AM
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Great build, looking forward to more posts.
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  #43  
Old July 20th, 2017, 05:47 PM
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Was able to use the stock hockey puck mounts...super simple!
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  #44  
Old August 1st, 2017, 12:59 AM
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'84 110 & '90 127 LHD 2-carb V8's
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litter of possums request...
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  #45  
Old August 1st, 2017, 01:55 AM
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72 + D1 drivetrain =?
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If Forbyn makes a 1.6 ratio rather than 1.2 TC, that might save the trouble of replacing the R&P.
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  #46  
Old August 1st, 2017, 07:35 AM
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Ok I like this.

Quick search shows they put these engines in Impalas and Malibus. Good used engines are plentiful. That said, finding a wrecked car would be better since you could get all the wiring bits, cooling, throttle pedal, etc.

Transmission, I'd bike the bullet and get new. Also get the GM crate version. It has the "low" 1st gear and then the ridic high 6th gear. That said, I haven't run the numbers on how all that would pan out RPM wise in a series.

But yes. I really like this and I think this is a good solution for engine replacements in series trucks. I've been eyeballing the newer chevy V6 engines, but this will work very well.

What I like about these newer engines, the power steering pump, AC compressor, etc is all there. And it puts out the HP you want without any issues. Heck, you should PROBABLY REDUCE the output. But that is just silly talk.
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  #47  
Old August 1st, 2017, 03:15 PM
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https://youtu.be/FDHaP7m5Z3A

Quick 0-60 (ish) run. Totally open intake. Turbo whine!
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  #48  
Old August 1st, 2017, 03:51 PM
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That's pretty insane for a Series!
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  #49  
Old August 1st, 2017, 03:59 PM
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Cool

Holy overkill! I wonder what it would be like without the turbo. Don't think I need to go that fast in a Series. Cool tho for sure!
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  #50  
Old August 1st, 2017, 04:12 PM
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The real shocking part is how well this thing handles at speed. I was pretty nervous about it since I've never broken 45mph in a stock Series but it's way, way more planted than I expected. I can't say I've gathered the fortitude to power slide it around a corner yet but its definitely possible...

------ Follow up post added August 1st, 2017 04:14 PM ------

Quote:
Originally Posted by Rocky View Post
If Forbyn makes a 1.6 ratio rather than 1.2 TC, that might save the trouble of replacing the R&P.
4.7 gearing is stock in the Salisbury so it actually saves you from having to re-gear the diffs.
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  #51  
Old August 1st, 2017, 05:27 PM
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Quote:
Originally Posted by CircuitTested View Post
Follow up post added August 1st, 2017 04:14 PM ------ 4.7 gearing is stock in the Salisbury so it actually saves you from having to re-gear the diffs.
I totally forgot that you're using it up from a series. So of course you'll have those gears....
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  #52  
Old September 30th, 2017, 11:25 PM
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Scott, You wouldn’t happen to know if the earlier LTG versions found in Camaros and the Cadillac CTS are similar dimensions?
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  #53  
Old October 1st, 2017, 07:55 PM
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Similar dimensions, yes. However, the internals are different and some annoying things like the bellhousing bolt pattern were changed from Gen II to Gen III LTG motors. Additionally, I don't believe GM sold the earlier LTG motors as a crate option and the wiring situation might be tricky since you'll have to use the existing harness/sensors/ECM, etc. Let me know if you need anything more specific.
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  #54  
Old October 1st, 2017, 08:57 PM
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So how's it coming? - when can hundreds & hundreds of us begin dropping by for a test drive?
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  #55  
Old October 1st, 2017, 09:08 PM
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She's done! It's at the shop now for a 500 mile check up, oil change and to have the hard top installed. If you're close come stop by this week and check it out for yourself. We did a proper photo shoot last week so I'll be posting some pictures this week.

The little 4 banger is a great motor. Reserved and docile at light throttle but if you bury it, hold on. We were power sliding the truck around some long sweepers at 50mph. We put together a formal retrofit package for some local Series owners so if anyone was thinking about the conversion just give me a shout and I can walk you through the whole thing.
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  #56  
Old October 1st, 2017, 10:05 PM
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Quote:
Originally Posted by CircuitTested View Post
https://youtu.be/FDHaP7m5Z3A

Quick 0-60 (ish) run. Totally open intake. Turbo whine!

Man what a great idea. I bet that would be a good powerplant in old 2.5na defender. I like the idea of less weight up front. It does better off road.
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  #57  
Old October 1st, 2017, 11:30 PM
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Thanks Scott. That was the info I was looking for. I’ll start looking for the newer one then. I’d be interested in hearing about the formal package in more detail in the mean time. PM is fine if you’d rather.
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  #58  
Old October 2nd, 2017, 05:29 PM
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Final routing of intake plumbing. Hidden under passenger fender is a GM OEM style air intake box. Minimal turbo whine. Total sleeper.
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  #59  
Old October 2nd, 2017, 05:35 PM
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Looks great...well done.. speaking of whine..how do you like the Forbyn case? How does the gear whine compare to a series or lt230?
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  #60  
Old October 2nd, 2017, 05:42 PM
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Originally Posted by phoenix37 View Post
Looks great...well done.. speaking of whine..how do you like the Forbyn case? How does the gear whine compare to a series or lt230?
I with the unit was a bit more plug and play out of the box but it's certainly a beefy unit. Whine wise, it's not noticeable and it'll take any amount of power you need. Some Atlas t-cases we've seen in some big dollar trucks are way, way noisier...
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