1990 Dodge Dakota Turbo Build - Page 5 - Turbo Dodge Forums : Turbo Dodge Forum for Turbo Mopars, Shelbys, Dodge Daytona, Dodge SRT-4, Chrysler PT Cruiser, Omni and more!

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post #61 of 80 Old 04-03-2018, 08:49 PM Thread Starter
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Re: 1990 Dodge Dakota Turbo Build

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Originally Posted by gkcooper View Post
Could you please elaborate on the source for your turbo exhaust housing? Are more available?
Do you mean the swing valve? The stock exhaust exits in the opposite direction than is desired for the engine mounting configuration, so the swing valve cast unit was cut and then material was added and welded to allow the exit to point more towards the rear of the engine.

Here is a picture of the modified 2.25" next to a stock 2.5". You can see the modifications on the mounted swing valve



Hope that answers your question.
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post #62 of 80 Old 04-05-2018, 02:24 PM
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Re: 1990 Dodge Dakota Turbo Build

Yes. Well, sort of. Did you do the modification? What type of filler material and welding wire/shielding gas did you use for the cast iron? Did you heat it up first?

Thanks for the response.
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post #63 of 80 Old 04-05-2018, 05:06 PM Thread Starter
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Re: 1990 Dodge Dakota Turbo Build

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Originally Posted by gkcooper View Post
Yes. Well, sort of. Did you do the modification? What type of filler material and welding wire/shielding gas did you use for the cast iron? Did you heat it up first?

Thanks for the response.
No I didn't, which limits my knowledge of how it was done. It does look like it was mended together with an oxy torch, rather than a tig, but i'm sure both would work fine with a proper pre-heat. I would have attempted it myself, but I only have a 120V mig in the corner.
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post #64 of 80 Old 06-15-2018, 09:55 PM
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Re: 1990 Dodge Dakota Turbo Build

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Originally Posted by INSATANSSEAT View Post
Wow. Johny! Your a genius. There are like a thousand top halves sitting around peoples garages. Looneytuner has one by me. He installed a Lengel unit.
I'm looking to buy an upper half if you still know of one floating around. I posted a WTB in the forum here.

GKC
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post #65 of 80 Old 06-18-2018, 06:51 PM
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Re: 1990 Dodge Dakota Turbo Build

Any updates on this thread? I started my Turbo project this past weekend. If you know who made that swing-valve I want to contact them.
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post #66 of 80 Old 06-18-2018, 08:03 PM
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Re: 1990 Dodge Dakota Turbo Build

You might want to consider looking for an ATP swing valve.

Not sure if they are still made for Chrysler's but someone might have one.

Thanks
Randy

EG: https://www.turbododge.com/forums/f4/...-made-atp.html
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post #67 of 80 Old 06-20-2018, 02:05 PM Thread Starter
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Re: 1990 Dodge Dakota Turbo Build

As far as updates, I have been driving the truck just about daily right now. Almost have my ostrich tune running happily. Only issue is that I do have a good amount of blow-by at idle that I can feel with my palm even when the oil cap is off. Not happy, but compression is fine, and I've extensively vented the valve cover to avoid any issues until I am able to get a good leak-down tester from someone, and maybe a budget to tear back into the engine to investigate. I suppose it wouldn't be a project if there wasn't always something to do.
As far as the swing-valve goes, i'm sorry I wont be of any help. I've tried contacting the guy myself with no luck. Like I said before, it is just a 2.25" that was cut down the middle and then welded back together for the required bend. If you take it to a good backyard welder and explain your wants and needs with a stock piece i'm sure he could probably get what your looking for in an afternoon.
Best of luck to ya!
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post #68 of 80 Old 06-20-2018, 02:44 PM
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Re: 1990 Dodge Dakota Turbo Build

garret now make reverse rotation turbos .. so there's that option ...
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post #69 of 80 Old 06-25-2018, 06:19 PM
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Re: 1990 Dodge Dakota Turbo Build

Greg, I will try to ask Bill if he want's to sell his. I don't know how often he gets on here anymore.
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post #70 of 80 Old 06-26-2018, 11:10 AM
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Re: 1990 Dodge Dakota Turbo Build

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Greg, I will try to ask Bill if he want's to sell his. I don't know how often he gets on here anymore.
OK, LMK.

Thanks.
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post #71 of 80 Old 02-08-2019, 03:25 AM
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Re: 1990 Dodge Dakota Turbo Build

Nice write-up. Enjoyed your thought process and all done on a typical hot Rodgers shoe string budget. Well done. All the best PanDragger
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post #72 of 80 Old 04-28-2019, 07:14 PM Thread Starter
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Re: 1990 Dodge Dakota Turbo Build

Right,

Its been quite some time since I have added to this thread but now I've got more to throw up. Just moved to another job so things got in the way but long story short.... The engine is back out....
I had issues with blow-by before but just continued to run the truck with an extreme amount of ventilation coming from the valve cover just to keep her on the road for the time being. As for the cause, my official guess is that I dusted the engine on a longer drive across Eastern Washington where I was caught in a dust storm (Yes we have those in Washington) and did not exactly have the most secure of air filters. I try not to dwell on the fact that I didn't do a good walk around before setting off. The past is in the past.
I now reside in Iowa which is a not so exciting change but I now have time and money to put into this engine, along with the abundant supply of E85 at the pump!

So! I pulled the engine last week and didn't wait to tear it down. Much easier the seventh time you've done it.



The bearings have definitely been scored and even though I didn't have a knock it was on its way. Cylinders also had a flat spot on the same side on each one and the obvious scoring all the way down! I sucked something gnarly into this thing. Keep your air filters clean and connected! I am simply going to take this an a learning opportunity. Luckily I couldn't catch a nail on any of the marks to a good hone should do it.



Moving on!

I have never been entirely keen on the engine bay condition so I've decided to give it a fresh coat of paint. I didn't want anything fancy but something that looked pretty clean. Decided on a gunmetal/ grey colour. Easy enough.

Before:



A bit lazy on pulling the wiring off the wall but it should be good enough



And the final colour:



Its a rattle can job but it looks cleaner than it did before. I did take the time to wet sand between each coats and will probably throw on a clear when its all said and done. Currently have the block and crank at the machine shop. Old guy at the shop said it could just be polished up and sent back so that's the route i'm going to take.

So there's a shortish and sweet update on this build. The goal here is to have it back up and running, break it in and then tune it for E85.
Waiting on some more OBD connectors to get in so I can record knock and such but it should be a fun experience.
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post #73 of 80 Old 05-02-2019, 07:24 AM
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Re: 1990 Dodge Dakota Turbo Build

Looks good! Plan on running it on E85? I'm running my PT GT and SRT-4 on corn, night and day difference.
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post #74 of 80 Old 05-02-2019, 06:23 PM Thread Starter
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Re: 1990 Dodge Dakota Turbo Build

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Originally Posted by WarlockSyno View Post
Looks good! Plan on running it on E85? I'm running my PT GT and SRT-4 on corn, night and day difference.
E85 for sure. I've never messed with it before but I have the ostrich so it should be a fun project tuning.
Was planning on having the bottom end assembled this weekend, but apparently JE pistons take a different type of ring than stock. From everything i've read its only Wiseco that does that.... So not I have a box of rings that don't fit.

Just my luck
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post #75 of 80 Old 05-04-2019, 12:07 PM
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Re: 1990 Dodge Dakota Turbo Build

Wiseco and JE are now basically the same company. I was chatting with Mike from FM last week. He told me that the JEs are only available with TIII style rings(late 2.2 turbo), or SRT4 style rings now.
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