ESS S85 Vt1 SC Kit

[Jonath]

I want this on my beast!!!!!!!!!!! The price on this SC system is not bad, but not having warranty must require deep pockets... argh!!!!! i think my heads gonna explode!!!!

[rocket5979]

DP.

[rocket5979]

That looks like a real nice kit! Vortech makes some high quality supercharger head units!

Originally Posted by Miguex

Congratulations!!!

I got few questions....

1) I guess the one (passenger side) of the scoops is useless for this SC... right?

2) Stage 1 ESS tune is for SC kit or NA ECU tuned?

3) RPI or other brand Pulley needs to be removed for SC?


I cant wait to get one!

The reason the underdrive pulley needs to be removed is that it will underdrive the supercharger as well which will decrease boost. I don't have allot of BMW specific ECU tuning experience but that Stage 1 tune would be Supercharger specific which will have a little less spark timing advance, WOT AFR's a little richer, and part throttle fueling recalibrated when compared to a N/A tune just for starters.

Originally Posted by IM6

Lots of questions coming up now...lol, would like to know the torque through the low rpm band and the long term reliability issues. Warranty obviously out the window now. U must be the first one to have this conversion done

According to the ESS site they are getting 370rwtq out of it. Centrifugal superchargers not torque-monsters on the low end of the rpm range; it's just not how they are designed. Centrifugals make their horsepower on the top end which makes them real fun for highway racing. Just think of what kind of power and feel your car has in stock form and then just imagine it gradually increased across the board with a much higher peak in horsepower at the big end. That is a fairly accurate way to describe the way a centrifugal supercharger will feel like. Cliffnotes: They aren't very torquey on the bottom end but pull like a freight train once you got your revs up!

[whatheheck]

Dang that looks sweet!

Looking forward to some videos and dynos.

Thanks for sharing.

[M6Cabrio]

So who is going to be the first to do this on a lease

[built240]

I would be worried about the warranty but at the same time ive heard usually when you supercharge a big powerful engine your not going to have that many problems b/c the engine is big and built to take a beating. Its the smaller cars like the 4 and 6cyl that have issue's when you supercharge or turbo charge them. I see mustangs at over 100k miles that have been supercharged and dont have too many problems due to that big V8, so i dont see how our V10 wouldnt be able to handle it even better if proper tuning was done and maintaince is followed. Maybe it will put an extra load on the tranny but i would think it would be pretty hard to mess up our motors unless your running on low oil or happen to get a coolant leak.

[q8kamikaze]

WOW this is powerful !! come on man videos videos videos , i think i'm gonna break my secret moneybox

[rocket5979]

Originally Posted by built240

I would be worried about the warranty but at the same time ive heard usually when you supercharge a big powerful engine your not going to have that many problems b/c the engine is big and built to take a beating. Its the smaller cars like the 4 and 6cyl that have issue's when you supercharge or turbo charge them. I see mustangs at over 100k miles that have been supercharged and dont have too many problems due to that big V8, so i dont see how our V10 wouldnt be able to handle it even better if proper tuning was done and maintaince is followed. Maybe it will put an extra load on the tranny but i would think it would be pretty hard to mess up our motors unless your running on low oil or happen to get a coolant leak.

There is no correlation between the amount of cylinders an engine has determining its ability to handle forced induction. What determines this is the compression ratio, engine rotating assembly metallurgy and construction, cylinder head fastener placement and deck thickness, clearance tolerances in the engine between moving parts, peak engine rpm, type of forced induction, amount of boost, fueling & airflow component upgrades, and the ECU tune. Obviously the last 5 items are items can be worked with; but if the engine itself has weak pistons or connecting rods or extremely high compression ratio then it will not be boost friendly no matter if it has 4 cylinders or 12 and displaces 2.0 liters or 8.0 liters. With that said, the S85 bottom end seems to be pretty strong since it has forged crank, rods, and pistons; and should be able to take forced induction pretty well. However I do have concerns about that 12:1 cr causing tendency for detonation. I wonder if ES is using water/methanol injection or E85 as their fuel as these items would assist in preventing detonation in a high compression forced induction engine.

[built240]

Didnt know that thanks. I guess i'd presume the m6's v10 was built with the fact it would be raced so the strongest parts would be used. But in laymens terms when you talk about compression are you kinda saying that the stock motor is already maxed out with power so adding more may be an issue.

[irishbimmer]

Built 240-I think he means that the stock 12:1 compression of the V-10 is typically too high for an add on blower. A motor that is designed for such an add-on my have a normal compression in the 8s or 9s for longevity. The rest of the motor is very strong and I've read where each V-10 is run at much higher RPM levels than the stock redline at test.