An idea for tt...

Nixlimited · 03-29-2012, 12:27 PM

Quote:

Originally Posted by edub370

the manifold wouldn't have to be changed theoratically.. save for maybe the bolt patter and angle that the turbo sits. by just flipping it 180 wouldnt that gain the desired effect without increasing exhaust distance??

I'm not sure what to tell you other than you are over-simplifying the actual engineering challenge by about 10^7 percent, and again, to make a kit that would almost certainly perform no better or worse than a low mount twin kit.

Most companies building these kits are doing so to make money and not one-offs to make people "happy in the pants." That whole recession thing has changed a lot of shop's thinking.

Boosted Performance · 03-29-2012, 02:06 PM

Quote:

Originally Posted by Nixlimited

make a kit that would almost certainly perform no better or worse than a low mount twin kit[/I].

If the top mount kit used tubular manifolds, vs the current cast manifolds ("low mount kits") it would outperform the cast manifolds all day long.

All the cast manifolds for the VQ have been a big restriction when it comes to big numbers, and no, 700whp is not big numbers. I am talking numbers north of that. Not to mention using an external wastegate, and something other than a T25 turbine housing with a tubular manifold.

You will never see a big power VQ with a cast manifold, but you will see one with a tubular, equal lenght manifold.

Nixlimited · 03-30-2012, 11:38 AM

Quote:

Originally Posted by Boosted Z

If the top mount kit used tubular manifolds, vs the current cast manifolds ("low mount kits") it would outperform the cast manifolds all day long.

All the cast manifolds for the VQ have been a big restriction when it comes to big numbers, and no, 700whp is not big numbers. I am talking numbers north of that. Not to mention using an external wastegate, and something other than a T25 turbine housing with a tubular manifold.

You will never see a big power VQ with a cast manifold, but you will see one with a tubular, equal lenght manifold.

I don't mean to argue that tubular isn't better than cast "log" manifold. I am talking about the bigger picture, which is making the entire kit work in the space we have without giving things up like accessories. For our platform, I just don't believe top mount is a better solution and I think the product offerings out there tend to support that circumstantially. I'm not saying I don't want someone to try, or that it wouldn't look cool, or that it couldn't make great gobs of power, but rather, that it's not the best engineering decision for our cars accounting for all variables.

CSA0890 · 03-30-2012, 08:12 PM

Quote:

Originally Posted by Nixlimited

I don't mean to argue that tubular isn't better than cast "log" manifold. I am talking about the bigger picture, which is making the entire kit work in the space we have without giving things up like accessories. For our platform, I just don't believe top mount is a better solution and I think the product offerings out there tend to support that circumstantially. I'm not saying I don't want someone to try, or that it wouldn't look cool, or that it couldn't make great gobs of power, but rather, that it's not the best engineering decision for our cars accounting for all variables.

As far as mass production goes anyway.

Im thinking hard about doing this myself I plan on buying a TIG in the next two or three years and cant wait to tear something up with it. lol

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