Help Needed With My Thermal Design Project - Designing a Turbo System for the Slant!

Thanks for the kind words.

Modified carbs are the most ticklish part of a blow-thru system, but they are a MUST, insofar as having a properly-modified fuel delivery system that is part and parcel of the turbo package, itself. You can buy them "off the shelf" (expensive,) modify them yourself (iffy, but possible; lots of info available relative to doing this, online) or hire somene who is familiar with the drill, to do it for you (can be almost as expensive as an off-the-shelf model, but not usually.)

Please, use any and all the pictures I have posted for your report; But, be aware that I am anything BUT an expert when it comes to this turbo business. For example, as nice as that header looks, I am of the opinion now, that it has tubes that are too long, and gives the enclosed heat too much of an opportunity to dissipate before it arrives at the turbo, and will waste a significant amount of heat/energy.

You would know more about that then I would, of course. The headers are mild steel, and ceramic-coated. The guy at the coating place advised us against wrapping them; said it would be very bad for them.

A similar, but more efficient, header that Aaron made is much shorter, more direct, and an overall better design than this one in my opinion. I don't have the URL for his pictures, but he monitors this thread pretty closely, so maybe he'll offer to show that header to you.. It's awesome, I think!!!:cheers:

The intake manifold we are using is inappropriate for a turbochargerd motor, I found out... too late. We had already designed the headers for it, and are pretty much stuck with it. I bought an Offy and a Clifford manifold to try to replace it, but neither of them will work with these headers. We ground all the way through one Clifford intake runner and beat the offending exhaust tube until it was obvious that those two parts were just not going to work together.:sad7:

My source of dissatisfaction with this Hurricane ($400.00) intake manifold comes from advice offered by a friend of mine who is a professional consultant... makes his living designing turbo systems for automobile manufacturers; when he talks, I listen. He said that it is an excellent manifold for a normally-aspirated engine, but just won't work on ours. He said we'll add 10 pounds of additional boost, and won't make any more power due to the excessive (for this application) runner length.

Down the road, we'll replace both the intake AND the header, I am sure, but we want to get it running, first.

So, we're pretty much flying blind here, but we learn as we go.:banghead:

We're down to a couple of weeks until it's operational.... we hope.

Stay tuned! :) and, thanks for your interest!!!

For the scope of this project we have decided to leave the carb and intake out of the analysis and focus on the events leading up to the intake only, especially since we only have a week and a half to get it done. We are going to look into the turbine, compressor, intercooler and pressure releif valve. We will also talk about modifying the stock exhaust manifold to accept a turbo flange, this will also reguire the use of a turbo with an internal wastegate. This professor is insane, he wants a 20 - 25 page report and a 15-30 minute powerpoint presentation, all in a week and a half!

I can see how the long tubes of your header may not be the best due to the cooling factor, but something has to be said for the craftsmanship. It also looks like it puts the turbo in a good location if you ever need to be able to get to it.