Down the rabbit hole -- 2276 MS3X Turbo build

[Boosten Ya(Josh)]

Beautiful. Coming along nicely cant wait to hear and see it run
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07' Ford Ranger - New DD.

71' Super beetle - prostreet trans 4.10 gear, 1641cc with dual 40 IDFs, W110, and a 1-1/2qt deep oil pan.
Needs: cage, seats, harnesses, better suspension, new wheels, and rear disc brakes.

Almost there....

[theDrew]

few more details last night

1.5 deep sump (I wanna say SCAT, but I can't remember)

and Jaycee's mag sump plate on (red of course)
I do not run an oil screen

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Turbo 2276 MS3X build http://www.thesamba.com/vw/forum/viewtopic.php?t=673125
1985 Vanagon Campmobile w/ 2005 EJ25

[theDrew]

wife and kiddo are gone this weekend, so lots getting done this weekend!

set the end play this morning, its fiddly but enjoyable. Shooting for .003-.004.

I'm always paranoid about this, so I'll be checking and re checking it throughout the build.

I always measure at the pulley end, the flywheel flexes too much

its sits at .003 - .0035 and with pressure I see .004. good enough for me!

i'm satisfied, so put in the o-ring and seal
torqued to 400ft/lbs with red loctite

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Turbo 2276 MS3X build http://www.thesamba.com/vw/forum/viewtopic.php?t=673125
1985 Vanagon Campmobile w/ 2005 EJ25

[andor]

[theDrew]

[andor]

[theDrew]

John recommended on a turbo build to be between .004-.005, so I re did it to be at .0045. (never hurts to have extra main seals laying around!)

got the oil pump on -- shadek 26mm, o-ringed pump with a CB cover. I lapped the cover to make sure it has a good fit.

pump tang has ~0.250 engangment, so its all good.

now onto the fun stuff -- starting on the exhaust. The CB header's wastegate flange wont fit with my TiAL wastegate, and I want it off of the collector, so started first by removing it. Once I get it in the car, I can start figuring out where it will go.

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Turbo 2276 MS3X build http://www.thesamba.com/vw/forum/viewtopic.php?t=673125
1985 Vanagon Campmobile w/ 2005 EJ25

[Boosten Ya(Josh)]

IMO that is a horrible placement for a wastegate. Kind of hard to control exhaust flow to the turbo if you only control 1 cyl exhaust flow.

Good job on moving it to the collector.
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07' Ford Ranger - New DD.

71' Super beetle - prostreet trans 4.10 gear, 1641cc with dual 40 IDFs, W110, and a 1-1/2qt deep oil pan.
Needs: cage, seats, harnesses, better suspension, new wheels, and rear disc brakes.

Almost there....

[jason]

Dont forget the little tin pieces on the bottom of your heads.

[theDrew]

[Dauz]

[jason]

I meant these,

[theDrew]

good eye....I do not have those -- musta never been on my original engine way back when.
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Turbo 2276 MS3X build http://www.thesamba.com/vw/forum/viewtopic.php?t=673125
1985 Vanagon Campmobile w/ 2005 EJ25

[Boosten Ya(Josh)]

[kangaboy]

[Boosten Ya(Josh)]

Ok that's what I thought.

Do you get a lot of boost creep?
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07' Ford Ranger - New DD.

71' Super beetle - prostreet trans 4.10 gear, 1641cc with dual 40 IDFs, W110, and a 1-1/2qt deep oil pan.
Needs: cage, seats, harnesses, better suspension, new wheels, and rear disc brakes.

Almost there....

[theDrew]

In CB's defense, there's not a lot of great places to put it with that header. And they want an off-the-shelf header that works, so everythings a compromise. And Pat Downs builds better engines that I can dream of all day long, so maybe its not a problem.

Being an engineer, I'd love to build two headers, one with the WG off of just one of the cylinders, and one with it off the collector and see how that affects things.
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Turbo 2276 MS3X build http://www.thesamba.com/vw/forum/viewtopic.php?t=673125
1985 Vanagon Campmobile w/ 2005 EJ25

[Boosten Ya(Josh)]

Yeah the main reason is to control exhaust flow to only allow enough exhaust to spin the turbo at a certain rpm. aka positive pressure. By only controlling 1 cylinder the (in this case 4 cyl) other 3 cylinders will push all the exhaust that flows out of the motor and spins the turbo even faster and thus overboost happens.

Just a little explanation. I know most of ya'll know this, but if anyone was wondering why wastegate placement is critical. Now you have an idea.
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07' Ford Ranger - New DD.

71' Super beetle - prostreet trans 4.10 gear, 1641cc with dual 40 IDFs, W110, and a 1-1/2qt deep oil pan.
Needs: cage, seats, harnesses, better suspension, new wheels, and rear disc brakes.

Almost there....

[Splitdog]

Mine's in that location and works fine. Steady @ 15 lbs.
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CH³NO²

Z = z² + C

Der Blitzkrieg Kafers

#notacallooker

[Dauz]