From what I understand, WLAURENT hasn't had any engine work done. Just the SC...

 

that was with the stock head gasket.




He has not re-dynoed his setup.
He is upgrading his fuel system to SS and AN hoses will be installing a new pulley (135mm) to push him up to about 11lbs of boost.


The other AP1 kit here in Alabama is at 222 feet above sea level and with the 126mm crank pulley is seeing 10.5-11 lbs of boost with ambient air temps in the low 20 to hi teens. With the Air to water IC being used The IATs are only 7-12deg F above ambient.



One thing that is hard to comprehend to a turbo guys is 11 lbs of boost on a supercharger is not always = to 11 lbs of boost with a turbo. One must look at mass flow to compare the two. Air mass flow is what we are after anyways boost is just an easer idea to comprehend.

 

7-12 deg F above ambient! That is nothing, how many PSI is safe to run without over spinning the blower?

 

the Air to water IC is designed to be used on 500whp vehicles there is so much head room (lots of surface area) the temperatures coming out of the unit are unreal the efficiency of the A to W is pushing just a little over 90%


This should help you understand the relation ship between pressure and speed of a roots.

I need to adjust the models in this spread sheet to reflect the real world outcomes of the current beta kits. The pressures you see here assume standard intake temperature and intake pressure that the blower was tested at (when at the manufacture) to put out 62cubic inches of air per rev.

 

yea, bolted on kit for kit the SOT may make more power, but once i pay the car off, i will want to through in some nice pistons and rods, and go for big boosted power(450+), which usually is unobtainable through a S/C, i just dont like how your restricted as to how high you can go.

i doubt i can get the SOT kit with intercooler and everything else for $4,300 like i can a Greddy kit.

But in terms of reliability, i will say the SOT/Comptech/Vortech are probably the best bet, but i cant really say that as i have never had a turbocharged car.

but i love the sound of the SOT, farrrr better than a turbo, turbos and bov's only sound insanely good when your running REALLY high boost imho

 

Any updates?