Just gives people more options.

If I had the choice between a small Ball bearing turbo and an Bush turbo with carbon seal. I'd be moving the throttle plate to be able to run the BB unit.

Or if you had a bush bearing turbo and couldn't afford to get it modified on a budget setup.

Options to choose can be a good thing

Exactly.. Some engines also pull hot air from around the exhaust manifold, then plumbed in pre air filter.

Good tip. Ta

I haven't touched this for a while. I retuned the NA setup. It makes 31Kw now. It still has that vapourisation issue at light load. I'm going to take the engine out of the car to fit the turbo and test it on the dyno out of the car. This way I wont have to do a full exhaust to test it and will make it easier to test different turbos etc.

Regarding selling kits.... I don't really want to sell stuff until I can be sure that its all working as planed. The inlet manifold may have to be heated to aid in fuel vapourisation on the single injector setup.
Sorry its dragging out a bit. I do tend to get distracted with different projects!!

Turbo's to test!

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I like your thinking! ;)
I'm using an Arduino board for electronic throttle control. But will just be a manual trim pot for starters.

I wouldn't use a BOV with this setup. You would want to stop the airflow through the carb with the throttle closed, otherwise you would end up with an overly rich mixture when the throttle was reopened.

Started making this engine test adaptor last week. It will make it a lot easier to try different turbo's, cams etc.

Still a bit to do, but these pics will give you an idea of how it works.

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I was talking to a fellow IP racer last night and he mentioned that you can use any turbo for draw through without turbo modification.

You do need to use an SU type carburetor. Remove the throttle plate from the carb and fit a throttle body/plate to the other side of the compressor.

He also said it is worth fitting a small vac line from the low point in the turbo carb adaptor to the engine side of the throttle plate to transfer the small amount of fuel that can dribble from these carbs on shut down. This vac line will need a small(about 1 mm) restrictor at the carb end of this line.

I haven't tried this myself, but I trust the source that this info came from.

Hello.. Are you out there... Does anyone know who this could be?? I cant remember his name or user name!

Hi, can the person from NZ please re send the message about the dizzy trigger issue and I'll send through a tune file and some trigger info. I accidentally deleted your message.

Thanks