95' Junker Drag Truck

gunracer1 said:
you will have to run straps all over that piping to hold.
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I think you'd be surprised how well it holds without straps. I'm quite certain the low pressure cold pipe between stages will be just fine.

On my old 99', I ran around for almost 3 years with non-welded pipes hitting 50-53 psi boost on several occasions.

On this twin setup, I'm not quite sure how well it will work with 100 psi boost, but worse case scenario, I take the charge pipe to a buddy with a better welding setup and we weld the butted pipes together.
 
100 psi is obviously double 50-53, did you do anything to the ends of the tubing to help the boots hold? I spot weld all the way around the tube so the rubber has something to hook onto.
 
Big Blue24 said:
I think you'd be surprised how well it holds without straps. I'm quite certain the low pressure cold pipe between stages will be just fine.

On my old 99', I ran around for almost 3 years with non-welded pipes hitting 50-53 psi boost on several occasions.

On this twin setup, I'm not quite sure how well it will work with 100 psi boost, but worse case scenario, I take the charge pipe to a buddy with a better welding setup and we weld the butted pipes together.
Click to expand...


when you blow one of those off at 100 psi it is going to sound like a cannon went off. hell mine blowing at 60 scared the shiz out of me a few times till i came up with a bracket that would hold the cold pipe in place.
 
Big Blue24 said:
I think you'd be surprised how well it holds without straps. I'm quite certain the low pressure cold pipe between stages will be just fine.

On my old 99', I ran around for almost 3 years with non-welded pipes hitting 50-53 psi boost on several occasions.

On this twin setup, I'm not quite sure how well it will work with 100 psi boost, but worse case scenario, I take the charge pipe to a buddy with a better welding setup and we weld the butted pipes together.
Click to expand...

Better Strap it;)

Chris
 
Not to sound like an echo... better strap it. Just remember when a charge air pipe's boot blows, you will over speed the turbo. ~100 psi of drive pressure, and no restriction on the compressor side, and ~40psi of boost from the bottom turbo, makes for some very impressive turbo rpms.

I think I've said this before, but I really like this project. Not everything has to be mega bucks to have fun.

Paul
 
paulb said:
I think I've said this before, but I really like this project. Not everything has to be mega bucks to have fun.

Paul
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This. And if he gets rid of the dryer vent downpipe I'll be satisfed!!!!!:lolly:
 
Hurley said:
This. And if he gets rid of the dryer vent downpipe I'll be satisfed!!!!!:lolly:
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There's never been a dryer vent downpipe, it is actual 5" flex pipe made for over the road trucks.......

About 4 years ago, I learned that dryer vent won't hold up when I was playing with it on my 99' back in college. 4" dryer vent wont hold the pressure and it just blew apart once the motor hit about 2000 rpm or boost hit about 8-10 psi. Believe me, if I could find a cheap way to make dryer vent work, I would!
 
Big Blue24 said:
There's never been a dryer vent downpipe, it is actual 5" flex pipe made for over the road trucks.......

About 4 years ago, I learned that dryer vent won't hold up when I was playing with it on my 99' back in college. 4" dryer vent wont hold the pressure and it just blew apart once the motor hit about 2000 rpm or boost hit about 8-10 psi. Believe me, if I could find a cheap way to make dryer vent work, I would!
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ahhh nevermind, i remember now, it's the rest of the exhaust that came from lowes, right?
 
i always weld a bead all the way around the ends of the pipe to prevent silicone coupler blow off. also spray the pipe with wd40 or hairspray before you clamp it, you will need to just about cut em off.

you can prevent excessive iat temps by installing a water/meth nozzle in the aluminum elbow of the he351. or even a small water/air intercooler between stages. so its 300 dg instead of turkey cooking temps (500+)
 
Hurley said:
ahhh nevermind, i remember now, it's the rest of the exhaust that came from lowes, right?
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Correct, the rest of the 5" exhaust system came from Lowes or Home Depot, can't remember which store had the best price at the time :hehe:
 
I've got a 6' straight section of 5" i can sell!!!!!!

shipping would be a ***** hahaha


Anyway, carry on with the build
 
I got the last 90* mandrel installed last night. I built 90% of the 5" exhaust down pipe, just need to finish welding and trim one connection. My oil drain has not yet arrived, and I'm having one heck of time finding a cheap reliable way to feed oil to both turbos. The stock oil line is 1/2" too short, and the "ricer" ebay oil feed lines are too small. Looks like I'm going to have to pay $50 to the local hose shop to make an adequately sized oil feed for the HT4B cause the ebay 5/32" internal fitting diameter is not going to cut it!

I also need to relocate the transmission heat exchanger which involves ordering bulk 1/2" tranny line, and a few feet of 5/8" coolant line.

My goal is to have it up and running by next weekend.
 
Big Blue24 said:
I got the last 90* mandrel installed last night. I built 90% of the 5" exhaust down pipe, just need to finish welding and trim one connection. My oil drain has not yet arrived, and I'm having one heck of time finding a cheap reliable way to feed oil to both turbos. The stock oil line is 1/2" too short, and the "ricer" ebay oil feed lines are too small. Looks like I'm going to have to pay $50 to the local hose shop to make an adequately sized oil feed for the HT4B cause the ebay 5/32" internal fitting diameter is not going to cut it!

I also need to relocate the transmission heat exchanger which involves ordering bulk 1/2" tranny line, and a few feet of 5/8" coolant line.

My goal is to have it up and running by next weekend.
Click to expand...

$50?? 1/4" hydraulic hose shouldn't cost that...maybe $250

Also, rubber Air conditioning line will work good for tranny cooler lines...and you can crimp regular old hydraulic fittings on the end. 600psi rated working pressure, and the oil doesn't bother it a bit...and it's light and flexible;)

Chris
 
Why not just use stainless braided and an fittings? I could probably get you the hose and fittings for about $50 and it would look clean.
 
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