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Turbo WD-45 !!

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Anthony Be.

05-29-2006 09:06:50




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I have 2 WD-45's, one running and one I'm rebuilding. I am a hotRodder and want to get some advise on modifying the engine. I want to turbo charge with a 2.3 ltr ford turbo, run a TBI from a late model GM 4 cyl car, and crank trigger ignition (MSD). I already have installed a Mallory Hyfire box in the stock point ignition and it has made the engine start and run SOOOO smooth. I figure with the already very low compression it should be ideal for the turbo, and the bad flow design of the intakes in the head really need a "boost". I have fab'd custom tubular intakes and exhausts before so this isn't new to me. Crane cams said they can regrind the Cam too. The goal here is to make 1)efficientcy 2)smooth running 3)reliable 4)anf of course more power! What do y'all think!?

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IA Roy

06-01-2006 15:10:17




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 Re: Turbo WD-45 !! in reply to Anthony Be., 05-29-2006 09:06:50  
A week or 2 ago on the Farmall site, someone had pictures of a Turbocharged M. I think it was also intercooled. Looked like a nice setup, however severely modified.



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Bill(Wis)

05-31-2006 19:17:26




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 Re: Turbo WD-45 !! in reply to Anthony Be., 05-29-2006 09:06:50  
The 226 engine was used in subsequent AC tractors to include the D17 and, I think, the 170 and maybe others. At each new installation Allis managed to squeeze a little more power out of it until the last model it was installed in. Probably the 170. It bit the dust at that point. Vibration was cited as the culprit so it sounds like they were going for more RPM.



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Hurst

06-04-2006 15:06:21




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 Re: Turbo WD-45 !! in reply to Bill(Wis), 05-31-2006 19:17:26  
They also used the 226 on the 175, had a higher compression ration, higher rpms and a different cam grind on it. There were probably some other mods, but those are the ones that I am most familiar with. Good luck


Hurst



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Anthony Be.

05-30-2006 15:08:31




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 Re: Turbo WD-45 !! in reply to Anthony Be., 05-29-2006 09:06:50  
Got me, I didn't think about the balancing. I'd still govern the RPMs to 1400, definitely. I like the injector idea, DFI would be better and easier to incorporate into the intake. The turbo would be low boost, just enough to overcome the bad intake port flow paths and it would love the low compression. As for the oil pump... Hmm I guess I'd have to external pump it, been thinking about that anyways since this motor has a broken pump housing anyways. I can get a good one at a racecar parts auction for a reasonable price. I don't plan on pulling with it, (I'd drop a SB chevy in it if I was going to do that :-)) just more gusto for the field and to show off and say "hightech on old school" and to just see if it can be done. Be cool to dyno it too! I understand about keeping original but "original" will be done to the second '45 I have. At the very least I'll just inject it and ignition mod it to save on gas. Well wish me luck and thanks for the great input!

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BCnT

05-29-2006 22:00:40




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 Re: Turbo WD-45 !! in reply to Anthony Be., 05-29-2006 09:06:50  
looks ok on paper but even if you get engine dialed in with the goodies...what about the tranny/rear end??? they do good to handle the power they already got.



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Texas Denny

05-29-2006 20:55:53




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 Re: Turbo WD-45 !! in reply to Anthony Be., 05-29-2006 09:06:50  
Aaron is right on.

When you pull the pan, you'll discover a crankshaft that was made for low rpm. 1800 rpm is a stretch as there is no balancing at all. I've seen a WD that was run too fast in pulling. Half way down the track, the connecting rods were coming out of the side of the block. Nobody talks redline on Allis tractors but it probablay is 1800 rpm.

If you want high revs, get an Oliver. They have balanced cranks and can take 3000 or 3500 rpm. There are other too but not the 45.

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ohio

05-31-2006 09:24:31




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 Re: Turbo WD-45 !! in reply to Texas Denny, 05-29-2006 20:55:53  
i"ve seen pics of sprint car (early 30"s) w/ a wc engine. anything can be balanced. i know of a guy w/ a bc3 cummins running 4000 rpm. didn"t last a million miles, but sounded cool!



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Texas Denny

05-31-2006 10:40:03




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 Re: Turbo WD-45 !! in reply to ohio, 05-31-2006 09:24:31  
Ohio, you'd better look at that crank before you start your plans. This crank has no counter weights at all. I don't see how this could be balanced. I have pictures of the WD crankshaft and the D-17 crankshaft that I can send you. Simply email back to me. If you can figure a way to balance it, I'm interested in how to do it.



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Anthony Be.

06-01-2006 08:27:46




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 Re: Turbo WD-45 !! in reply to Texas Denny, 05-31-2006 10:40:03  
The crank is a big issue, as the eng I'm rebuilding had broken a crank but had a "new" one when tractor was bought. Blocks been checked for cracks as well as the rods. All balancing will have to be done from the flywheel and front pulley. The sheer size and weight of the pistons is another issue that will limit rpm's too. This does have the same Bore (4") as a 350 chevy...Hmm Eagle and others can build custom rods, length, journal and pin. Longer rod gives better Rod/Stroke ratio. Link Then with the lighter rods and piston there would be less stress on the crank, balanced for these of course. Going to find a 2.3ltr ford turbo today!

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ohio

05-31-2006 12:41:27




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 Re: Turbo WD-45 !! in reply to Texas Denny, 05-31-2006 10:40:03  
also, if it makes 300 lbs of tq at 800 & some rpm, why does it need to spin fast?



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ohio

05-31-2006 12:39:03




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 Re: Turbo WD-45 !! in reply to Texas Denny, 05-31-2006 10:40:03  
running 2500 isnt that difficult. b&s engines run 3600 and they are as well balanced as a shovelhead.



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ohio

05-31-2006 12:37:01




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 Re: Turbo WD-45 !! in reply to Texas Denny, 05-31-2006 10:40:03  
mallory metal or a balanced flywheel.



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ohio

05-29-2006 18:06:39




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 Re: Turbo WD-45 !! in reply to Anthony Be., 05-29-2006 09:06:50  
i thought about bosch smpi from a t1 2.2 chrysler. just put 2 injectors in each intake. the combustion chambers are better than most anything out there. maybe a gleaner e block would better suite the task?



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Aaron SEIA

05-29-2006 16:41:28




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 Re: Turbo WD-45 !! in reply to Anthony Be., 05-29-2006 09:06:50  
Please keep in mind that as an antique site, people here generally take a dim view of messing with original. That said, a couple of things to think about. That engine was built to run 1400 and I doubt a turbo is gonna make it want to go much faster. Also the stock oil pump has no chance whatsoever to feed the engine AND a turbo. Plan on a second oil pump for the turbo. Personally, I'd go simple and put a downdraft carb on the suck side of the turbo. Have seen a few pulling tractors like that. It'd be neat if done right, but I'm not sure what you'd do with it when done. Aaron SEIA

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Old Puller

06-01-2006 11:11:34




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 Re: Turbo WD-45 !! in reply to Aaron SEIA, 05-29-2006 16:41:28  
Back in the old days of pulling I've seen turboed 4 cyl WD-45's turning nearly 5000 rpms and with some serious engine work they stayed together.

Volland and Lucas out of Ohio pulled one on the NTPA circuit in 5000 lb SS.



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