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Power adders! Blowers, turbos & NOS talk & Q&A!

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  #1  
Old 09-14-2017, 07:58 AM
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I'm doing one more turbo project. Last one I promise. Accel Turbosonic from the 70s (I thought they were older). Covering it in the 'Build' area. Where I'm at now. This was on a 350, but was alittle too much, so I'm setting it up on a 5.0 Ford in hopes of a milder more street friendly lower performance setup. The 5.0 needs some help. It's a 1984 EFI low compression smog motor--a blistering 140 HP. I bought the whole car for $75 with a bad timing chain. $35 later I have a pretty good running donor. Removed the throttle body, put on a GM style Distributer, and a little booster, maybe Ill see 200 hp??
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Old 09-14-2017, 08:02 AM
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Has anyone used a windshield washer as a water injection successfully? Looks a little Mickey mouse--but--I kinda roll that way.
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Old 09-14-2017, 10:10 AM
bob w bob w is offline
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Can't help you out, PA41, but I'll be watching closely. If you are successful I'll probably give my similar set up a try.
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Old 09-14-2017, 05:47 PM
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I had the mock up crossover exhaust with 2" pipe, and I decided I wanted the T3 flange opening filled, so I've ordered 2 1/2" pipe with mandrel 90s. Should weld easier, and flow more. I just hammered the tube square and fit it in the flange, and the 2" leaves too much gap--the 2.5" should be better. I think I'll lower the crossover a little too. I had to cut the turbo exhausts T3 flange off and make it flat. I only gave $140 for the set, and they are THIN! I've never welded with the Mig on 1 and 1, and had to dot dot dot it even then.
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Old 09-14-2017, 09:04 PM
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Quote:
Originally Posted by bob w View Post
If you are successful I'll probably give my similar set up a try.
I think in moderation these Turbosonic systems should be successful. The early turbo coupe T birds and the Early Grand Nationals were draw through, non intercooled, and they made reasonable power. I believe users and sellers, were asking too much from this type of system. I'm expecting to get some modest improvements at a relatively low cost. I think I have overdone it in my other turbo projects, so I'm going for a little less in this one. We'll see how it works.
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Old 09-16-2017, 07:12 AM
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Was looking up this Turbosonic company on the net, sifting through the BS, and found they started making this setup in 1976, and it struck me that those were the 'bad old days' of factory performance. The smog laws were trashing factory hotrods, and the aftermarket was capitalizing on the need for speed. I can remember people buying new cars and going through the motor at zero miles to get some compression back. I was a gas station mechanic and had a booming business replacing new car smog distributors with earlier model dizzies with illegal curves and sometimes doubling fuel economy and performance. Accel probably sold a bundle of these at first. Apparently the tuners are now claiming that multiple stage meth/water injection in non intercooled applications can be effective in 8 psi of boost even better than intercooling. There is one tuner telling people to trash there intercoolers and get sophisticated watering systems. You tube--Voiding Warranties EP35. Its gotta be true--its on the internet.
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Old 09-16-2017, 07:48 AM
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Interesting watching you set this up. The thought went through my head for about 2 seconds that I might do my 302 up with a turbo.....you're making it look easy! If I ever were to do one, it would be a draw through like that.
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Old 12-12-2017, 02:53 PM
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Quote:
Originally Posted by PA41 View Post
maybe Ill see 200 hp??
I found this little bit of info while I was researching for my turbo project. It gives a wide range, but it is useful:

Quote:
You can get calculate a rough estimate on Engine horsepower using the following formulas:Lower value: 0.052 x CID x (psi boost + 14.7) = bhpHigher value: 0.077 x CID x (psi boost + 14.7) = bhp
In your case, 4 pounds would give you around 290 horsepower on the low estimate side. 8 pounds would be around 360. I didn't see if you said how much pressure you're planning to run.

I've also heard that the best injection fluid for your money is windshield washer fluid. You have to get the -30F formula. They are something like 30-40% methanol.

In my personal taste, the methanol injection is a whole lot of stuff to mess with, for a 5% horsepower increase on something just built for fun. But then again, that may be your idea of fun, and that's cool.

As for the squeaking, I highly doubt it's the turbo. I would even almost say impossible. I run my oil pressure gauge right on the turbo, a couple inches upstream of the oil restrictor, and it does take a few seconds to get oil pressure when I start up. (maybe 4-6 seconds?) The whole engine system should be able to operate safely on the residual oil film for a few seconds, at low speeds. That's also why I've never understood the people that start their engines and slam them immediately to redline. It sounds like you have an ignition switch separate from your starter switch, as I do. I tend to start up more like an old radial airplane engine, where I crank for a few seconds to limber everything up and get the juices flowing, then flip the ignition on for a smooth start. My rule of thumb is to crank until I get 4 to 5 inHg manifold vacuum, then light it. It still takes a bit for oil pressure though.

If you do think the turbo needs new bearings, it doesn't cost much to have them replaced, and have the assembly balanced.
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Old 12-12-2017, 06:04 PM
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Well this is interesting Thanks for posting PA.
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Old 08-02-2018, 12:00 PM
Abasham Abasham is offline
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Hmm. My Gears are turning....
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