Sounds like its time for a little maintenance?
Drew's MegaCheap homebrew 3b turbo thread
- Thread starter amaurer
- Start date
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- Thread starter
- #142
2017 Update - I haven't touched a damn thing on this build since I put it on; chinese turbo still going strong, which I find hilarious. I was DD'ing (commuting) in this truck all the way until about 4 months ago when I started driving my son to day care. Still drive occasionally though and it never lets me down.
I also live at 5000' now, the turbo is a huge help.
I also live at 5000' now, the turbo is a huge help.
serenity
SILVER Star
I missed this thread first time round, that is one badass mega cheap turbo setup.
I'm adding this fine example of mud engineering to the FAQ.
I'm adding this fine example of mud engineering to the FAQ.
MrMoMo
That's not rust, it's Canadian patina...
Hey, shoutout to this thread and @amaurer - I've just about wrapped up my project turbo install my our BJ70 using this method, box tube manifold, Volvo turbo & VW intercooler... So far so good!
Saving the silver 70...
Saving the silver 70...
- Thread starter
- #145
Dude, awesome. I see you didn't angle the ends of the box tube in as severely as I did, nice work.
MrMoMo
That's not rust, it's Canadian patina...
Haha - want to know the real story? The box tube was a chunk I pulled from my scrap pile, and one end was already cut at an angle.... Being lazy, I just matched the other end to the same angle ;cD
Just posted a short video in the other thread.... Hopefully next will be a running video!
Sorry if i missed it but what type of hose did you use from the air cleaner to turbo? Also where did you find it?
- Thread starter
- #149
This was actually a hard bit to find, but I believe I got it off of Amazon or at Autozone. Its a Spectre Racing #8741 duct.
RACING BRAKE COOLING DUCT HOSE 3in X10ft 300+ deg. UNVERSAL WILWOOD ALLSTAR | eBay
I found this one might do the job. Not sure how well it will reduce down to 2.25" to fit the turbo
I found this one might do the job. Not sure how well it will reduce down to 2.25" to fit the turbo
- Thread starter
- #151
I may have had to use a reducing bushing on mine, too.
Your right not easy stuff to find! haha. Only can find in 10' lengths
Nevermind i was searching the wrong thing. Found ot on amazon canda for $25 haha should work well with my plan or at least give me options
New turbo install. Any special thoughts on cold weather starts?like -35c cold. The one I'm dealing with fogs like crazy on start up for 10+ minutes and runs quite roughly that whole time. I never get it on the turbo until it's had a good chance to get pyrometer moving up. Has anyone got thots on v cold starts
stevebradford
In the shop
Thanks for the inspiration. I love the simple clean engine hugging idea of this so much I also built one.
- Thread starter
- #156
Look at you, showing off with those rounded corners.
Looks great.
Looks great.
stevebradford
In the shop
Thanks I’m pretty happy with it. One day I would like to make a divided manifold but some how also keep it small and tight to the motor.
While clearing shavings from my stock NA manifold seen here with my log manifold plate bolted to it I noticed shavings being sucked in through in port 2 with air applied to port 1. Impressive for a simple stock manifold.
A while back I read four-cylinder engines with firing order 1-3-4-2: (Toyota B series)
Will have cylinder 1 ending its expansion stroke and opening its exhaust valve while cylinder 2 still has its exhaust valve open and vice versa.
In an undivided exhaust manifold, this pressure pulse from cylinder exhaust blowdown event is much more likely to contaminate the paired cylinder with high pressure exhaust gas. this hurts the other cylinders ability to breathe properly and obviously efficiency.
Here’s my new undivided log manifold unfortunately not breathing as cleanly.
Here’s an example of a divided manifold from a later Toyota diesel.
While clearing shavings from my stock NA manifold seen here with my log manifold plate bolted to it I noticed shavings being sucked in through in port 2 with air applied to port 1. Impressive for a simple stock manifold.
A while back I read four-cylinder engines with firing order 1-3-4-2: (Toyota B series)
Will have cylinder 1 ending its expansion stroke and opening its exhaust valve while cylinder 2 still has its exhaust valve open and vice versa.
In an undivided exhaust manifold, this pressure pulse from cylinder exhaust blowdown event is much more likely to contaminate the paired cylinder with high pressure exhaust gas. this hurts the other cylinders ability to breathe properly and obviously efficiency.
Here’s my new undivided log manifold unfortunately not breathing as cleanly.
Here’s an example of a divided manifold from a later Toyota diesel.
Would be curious to try my log one built out of T joints...
I need to build a 5 cylinder version...
