TD04-13G-6cm2

[jazzyjay]

I am working on my 3000gt today so don't kill me. I need to know will the center section of the TD04-13G-5cm2(Auto 1g DSM) turbo. Bolt to my TD04-13G-6cm2 ehaust and compressor housing. What does the 5cm2/6cm2 refer too? Need some answers turbo on it's way out.

 

[NOSLO2PT0]

I am working on my 3000gt today so don't kill me. I need to know will the center section of the TD04-13G-5cm2(Auto 1g DSM) turbo. Bolt to my TD04-13G-6cm2 ehaust and compressor housing. What does the 5cm2/6cm2 refer too? Need some answers turbo on it's way out.

It should slide right in. The 5cm/6cm refers to the ratio of the area vs. radius of the scroll in the turbine housing. Basically, imagine a snail shell. You are trying to picture the actual volume of air that is INSIDE the shell at any given time. A 6cm^2 "shell" (turbine housing) will have a larger overall area/volume than the 5cm^2 will. This will create a little more lag, but offer more top end.

 

[jazzyjay]

So with the 5cm2 in the 6cm2 housing. I will have more lag and more top end, am i correct. The lag will not hurt me because the car is twin turbo and the other is 6cm2 in a 6cm2 housing.

 

[NOSLO2PT0]

So with the 5cm2 in the 6cm2 housing. I will have more lag and more top end, am i correct. The lag will not hurt me because the car is twin turbo and the other is 6cm2 in a 6cm2 housing.

Umm.. no. 5cm^2 and 6cm^2 referes to the size of the a/r of the turbine housing itself. You can have 2 turbine housings that look exactly the same, but have diff. a/r's. 5cm vs 6cm.

I have a link that has the turbo size of diff. cars. Unfortunately, it's down right now. Soon as it comes back up, I'll look at the turbo sizes and compare.

 

[psychlow]

6 cm2 = 0.41 A/R
7 cm2 = 0.49 A/R
8 cm2 = 0.57 A/R
9 cm2 = 0.65 A/R
10 cm2 = 0.73 A/R
11 cm2 = 0.81 A/R
12 cm2 = 0.89 A/R

This is from: http://www.stealth316.com/2-turboguide.htm