Draw Through Turbo project for my 2.9 Stroker L series

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11-02-2024.  Well, I found a new project.  An old Crown Turbo kit in pieces, that I am going to clean up and install with a new Trubo, some water/methanol injection, and run it on my 11.54 to 1 compression stroker L series.  I will keep the boost LOW.    It is primarily for looks, and that little shot of power will be cool also.  I am at high elevation, so the overall compression is lower, .....at 5 Psi I will be at 14.27 to 1 compression.  I really only want 3 psi, no more, so that compression figure would be 12.7 to 1.  Methanol water injection 50/50 mix will make the 91 octane act like it's 116 Performance (octane) rating.

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11-02-2024 Turbo project update. Since the turko kit I bought hasn't arrived yet, I started work on an aluminum plate heat barrier around my brake master cylinder. I also went ahead and ordered t a Snow Performance stage 1 water/methanol injection kit, that will make my 11.54 to 1 compression motor survive a little bit of boost on top of it all. I have also decided to go with an internal wastegate, and the video I posted earlier, shows a neat way to lower the boost setting on an internal wastegate with a spring and and a couple spacers. I now want to figure out how the throttle cable or hopefully rods will work for the single SU carb. Here is a quick video and then a few pics of the heat shield, keep in mind, it is NOT finished, just started.     (video from today on post below this)

Edited Sunday at 08:45 AM by A to Z

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Click to watch video from the above post.

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I was searching online, and this is the cheapest price I found for the Snow Performance Water/Methanol injection Stage 1 kit:

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11-03-2024 Turbo project update. I Went ahead and snagged the turbo for my project. Ebay special... "T3/T4 T04E V-BAND Turbocharger Turbo .63 A/R with Internal Wastegate New"

The seller is "TurboBoosts" which has a really good reputation. Good cheap unit for what I am doing, just putting around town in my toy a little bit

Here is the link if interested

https://www.ebay.com/itm/203047116629

Here are some pics

Edited Sunday at 09:18 PM by A to Z
Jesus Is Lord

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Turbo Specifications:

Exhaust Inlet (Turbo Manifold) Flange: T3 T4 4 bolt Flange Patterns

Exhaust Outlet Flange: V-Band Flange (ID/OD: 2.5"/3.1")

Turbine Side:

Turbine Trim: 74.2

Turbine A/R: 0.63

Turbine Inducer: 64.8mm

Turbine Exducer: 55.8mm

Turbine exhaust outlet : 79mm

Turbine exhaust inlet: 44.7mm（length）/85.8mm（width）

Compressor Side:Compressor Trim: 48.1

Compressor A/R: 0.5

Compressor Inducer: 52.7mm

Compressor Exducer: 76mm

Compressor outlet:78 mm

Compressor inlet:51.5 mm

Bearing: Journal Bearing

Cooling Type: Oil Cooled

Wastegate: Internal Wastegate

Thrust Bearings: 270 Degrees

Hosepower: Up to 420 HP

Turbo Type: Individual

Condition: 100% Brand New

Accessories: You will get exactly as shown as picture above

Package Size: 30x 28x 24 cm

Package Weight: 9180g

 

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Features:

-High Quality Material, Cast Housing with Durable Steel

-Boost Engine Horsepower Significantly

-Increase Engine Power and Torque Outpout;

-Maintain Combustion Chamber Pressure and Fuel/Air Load

-Contructed with High Quality Material

-Built for Durability and Strength

OUR ADVANTAGE

1.100% BALANCING TEST, This Turbocharger you will receive has been balanced using the VSR machine technology.

Through the comprehensive and high-precision static and dynamic balance detection technology, and reliability.

2. All of the materials we use are the best materials,and we believe that only the best materials will guarantee the life of the turbo.

Turbine Wheel: the special K418 alloy to achieve stability under high temperatures up to 900 degrees Celsius, and never use K13 Inconel alloy.

Turbine housing : Ductile iron QT450-10 can withstand temperatures up to 700 degrees Celsius

Aluminum blades : Precision machining forging. The lightweight design enables reduced noise and increased response without compromising comfort or longevity

*Factory direct price, ship worldwide; Offering any turbo part leading 2 years warranty under normal use, unlimited mileage.

2 YEARS WARRANTY

Factory direct price, ship worldwide; Offering any turbo part leading 2 years warranty under normal use, unlimited mileage.

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11-06-2024 Turbo project update: I have decided to not use the SU carburetor....I am switching to the Mikuni HSR 45mm carb. It's a motorcycle carb, and some of you have seen how guys use multiple ones instead of sidedraft carbs. I reached out to John at V Performance, and he is going to build and prep one for my setup. NO BUTTERFLIES! Butterflies in a draw through turbo cause a real vacuum problem, and is terribly hard on turbochargers, especially the seals. For years, guys have been adding "carbon seals" to combat this issue...this should combat the issue, and it has the benefits of having an accelerator pump, it's a true 45mm bore all teh way through and many other benefits. Here is an excerpt from a Corvair Forum from guys using it on their draw through Turbo Corvairs: Mikuni HSR carbs were last used in O.E. applications on Harley motorcycles and also Yamaha's. kmart356 over at Corvair Center has been a pioneer in using this carburetor, and he worked with the folks at Vintage Performance to make it happen! Slide carbs have always been a better carb than butterfly types because the fuel air ratio can track the actual airflow over a wide range of throttle openings and flow much more air for their size than a butterfly type can. They have a natural variable venturi as opposed to a fixed venturi and variable area like butterfly types. Also, because of the slide movement, area is gained in a proportional way instead of a wild magnetic hysterisis type curve that is typical of a butterfly opening. They were the last carburetors used in F1 before going to fuel injection!!
Perhaps these would have been used in automotive applications more often long ago, but the big bugger in the old days was that the only other application for them were small displacement motorcycles and those did not need accelerator pumps so they didnt have them! The HSR's do have accelerator pumps and do lend themselves to automotive use. The HSR45 is an ideal fit for use on the F-flow Corvair Turbo, as it is nearly the same size as the turbo inlet!

 

Edited 4 hours ago by A to Z
Jesus Is Lord

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Performance Parts - Vintage Performance Developments

Edited 4 hours ago by A to Z
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