So yeh...I initially had wanted to throw this bad boy on my 1992 Nissan Maxima 3.0L V6, but the car crapped out on me, and then I bought the SVTf. So.. in all my daydreams and whatnot, I have decided to start designing the intake manifold and aftercooler system for this to work.
Basically my reason for attempting this even though a lot of pessimism comes from every Focus person I talk to is that it has been done on a ZX2 Escort a couple years ago.
You can read about it in this thread I had dug up from old archives over at TeamZX2.com :
http://teamzx2.com/archive/thread_28566.html
Here are some pics of the intake and how it is mounted in the ZX2.
Eaton doesn't publish an efficiency map persay for the M-90 on their website, but they do show:
Within the 4-12k blower rpm range the intake temps are pretty level.
Now if you compare the 5psi and the 10psi temps you see an increase of ~70*F.
That in itself is significant, but if Laminova Production AB - heat exchangers are used as aftercoolers the temp increase will actually be negative compared to the 5psi without any cooling.
Here is some pics from their site:
Here the water will flow thru the heat exchanger and the air flowed over the tiny fins.
Example intake manifold.
Cross-section of the fins.
I need to do some more calculations, but I know that the regular type of aftercooler made by ZZPerformance 2.5" thick intercooler has temp drops of ~114*F
And their economy 1" thick intercooler has temp drops of ~82*F.
http://www.zzperformance.com/grand_p... af119221dcf2
After reading the descriptions in that ZX2 thread of 5psi from the getgo and up to 9.5psi rather quickly I was rather giddy, and have much more enthusiasm to get this project underway.
http://focus.c-f-m.com/index.asp?Pag...ROD&ProdID=456
Nice 5.7" crank pulley.
And if I machine my snout I can get as low as 2.35" pulley on the S/C.
http://www.zzperformance.com/grand_p...ts1.php?id=205
But given this I think the maximum supercharger RPM I want to run is 12,000RPM
So, I have been using this calculator to choose the correct pulley size.
http://www.csgnetwork.com/pulleybeltcalc.html
If I keep the S/C RPM at 12k rpm I am trying to match the redline rpm of the SVT as close as I can to 7200rpm.
By using a 3.4" pulley, I have a pulley ratio of 1.676 between the crank and s/c and my upper redline value is 7160rpm so it won't go over the 12k rpm very much before it hits the rev-limiter. The program also tells me to have a minimum belt wrap of 162 degrees. This will help in locating the belt tensioners when fabbing this up.
If I did this calculation right, I should be making ~10psi at 7200rpm.
1atm is 14.969psi, there fore my pulley ratio is 1.676
So pressure should be equal to (pulley ratio times 1 atmosphere) minus 1 atmosphere.
(14.696psi*1.676)-14.696 = 9.93 psi. should be the manifold pressure with the 5.7" crank pulley and the 3.4" S/C pulley combo.
So that is what is in the works for now.....
Linear Mode
