Recent content by david85
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6.9 E350 C6 to E4OD or 4R100?
1989-1991 should have a speedometer cable style tailshaft. I read that some later models might still had the same tail shaft internally but the outside casing is blanked off. Best to look for an older transmission to avoid issues here. Note that almost all of the updates for the 4R100 will fit...- david85
- Post #30
- Forum: 6.9L IH & 7.3L IDI Diesels
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085 better spooling, zf5, and intercooled
My signature is up to date so all the specs are in there (3" exhaust/093/E4OD/3.55). Although, I did discover a small exhaust manifold leak a few months ago. It has much better midrange after swapping from the 088 setup to the 093. Exhaust manifold leak and the 3" tailpipe are probably not helping.- david85
- Post #17
- Forum: 6.9L IH & 7.3L IDI Diesels
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Moose Diesel Poor Customer Sevice?
So if I understand correctly, Suzi is Mel's daughter, and she now runs Conestoga diesel? Or was the business completely sold out of the family now? I'm running a moose pump from 2010. Probably starting to have the timing plunger stick a little, and just an occasional hint of hesitation on...- david85
- Post #20
- Forum: 6.9L IH & 7.3L IDI Diesels
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085 better spooling, zf5, and intercooled
That's not what I was hoping to hear! My intercooler is still up on the shelf, waiting for me to install it. Was hoping for a moderate improvement in performance and EGTs.- david85
- Post #12
- Forum: 6.9L IH & 7.3L IDI Diesels
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6.9 E350 C6 to E4OD or 4R100?
6-pinion steel planetaries became an option on some E4OD/4R100 transmissions in 1997. Although, its such a common upgrade that it's relatively inexpensive to purchase them aftermarket for a rebuild. Cost of paying a shop to rebuild it will not be so cheap, however. If you're using an all OEM...- david85
- Post #12
- Forum: 6.9L IH & 7.3L IDI Diesels
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E4od delayed upshifting
Correct. Trucks up to 1991 still use the speedometer cable. 1992 and up combined the rear abs with a vehicle speed sensor, which also drives the electronic speedometer.- david85
- Post #3
- Forum: 6.9L IH & 7.3L IDI Diesels
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1986 F250 6.9 Project
12MPG city, 16MPG highway. But its rare that I can cruise for an extended time on the highway. Most of my driving now is short distances to and from work. I recommend 7 - 10 PSI for a 6.9 until you put head studs. After studs? have at it. Most of the time I'm topping out at 10 PSI. Mine isn't...- david85
- Post #10
- Forum: 6.9L IH & 7.3L IDI Diesels
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1986 F250 6.9 Project
Hi Speeddeamon. Just found your PM. Any questions, ask away. I've attached the three older style of ATS turbo kits. The last version of "Aurora" ATS kit was basically the same as the 093 version, but with an upgraded turbocharger. I've disconnected the wastegate on my 093 setup and it can reach...- david85
- Post #8
- Forum: 6.9L IH & 7.3L IDI Diesels
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6.9 Overhaul Kits
That could be an opportunity to have some fun with the design. I always wanted to try dropping compression by making a deeper prechamber in the piston crown (would have to be careful to maintain minimum crown thickness). The pistons I'm running right now are dropped compression, but that was...- david85
- Post #8
- Forum: 6.9L IH & 7.3L IDI Diesels
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OD worth the $ ?
Yup, mine was 4.10s and C6 when I first bought it many years ago. I switched to 3.08 gears and it worked well for a few years like that. 1st gear worked better than expected for towing, but I rarely had to move more than 5000lbs. My truck was also a 2wd at the time, so swapping only one gear set...- david85
- Post #91
- Forum: 6.9L IH & 7.3L IDI Diesels
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6.9 Overhaul Kits
Well, this sure is depressing. My engine is still doing fine on a 15 year old rebuild but not having pistons available is not something I wanted to hear.- david85
- Post #6
- Forum: 6.9L IH & 7.3L IDI Diesels
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OD worth the $ ?
Torque converter slip is not linear across the RPM range. The lower the RPM, the more the torque converter will slip, especially around the stall speed. More slip = more heat = more lost efficiency. RPM will drop with the overdrive engaged, but as I implied with my earlier post, much of that...- david85
- Post #87
- Forum: 6.9L IH & 7.3L IDI Diesels
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6.9 IDI questions
13mpg highway in the winter is about right for an IDI with a C6 auto. Being an ambulance, it's likely 4.10 gears, which also doesn't help. Mine didn't do much better when I first got it. Top speed was about 70MPH. The easiest and cheapest upgrade would be regearing the rear axle. The best bang...- david85
- Post #42
- Forum: 6.9L IH & 7.3L IDI Diesels
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4WD IDI C6 are hard to find?
I think you're right, but I can't find all the details. He knew how to make things work.- david85
- Post #36
- Forum: 6.9L IH & 7.3L IDI Diesels
