• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

Supercharging the wife's car

A

Apex

Diamond Member
Wife's BMW E60 M5 is finally getting substantial work done to it. As of last week, it had the stage 1 supercharger from ESS put in. It still has some preproduction parts, mainly related to the intake side of the kit.

vt1_01.jpg


vt1_02.jpg


vt1_03.jpg


It's back in to the shop to get the stage 2 done, which will add a water to air chargecooler, and increase the boost level. Preproduction parts should be swapped out for production.

Should be fun. The supercharger doesn't whistle much at all, and the bypass valve is plumbed back into the intake. 🙂
 
What kind of power are we talking here? I don't know anything about the BMW aftermarket.
 
A5 said:
What kind of power are we talking here? I don't know anything about the BMW aftermarket.
Click to expand...

Not too sure, will have to dyno when it gets back.

It dyno'd about 60-70hp crank (about 55 rwhp) above stock with 91 octane before it was supercharged, thanks to headers, full exhaust, intake, pulley, oil cooler, and software. Before the supercharger, a Dinan 5.8L stroker equipped M5 will walk it, but at a relatively slow delta.

At the Streets of Willow racetrack (relatively tight, technical track), counterclockwise, it got up to about 130mph on the straight with me driving.

After all said and done, it should be over 700 at the crank. It's a pretty conservative kit at just 6 psi. It's designed for reliability and usability, with a torque curve that mirrors the stock one. OE compression ratio is 12.0:1, so going much over 6psi this isn't all that worthwhile on 91 octane.

halik said:
Hah sounds a bit excessive, 500hp not enough?
Click to expand...

What is this "enough" you speak of? 🙂
 
Apex said:
Not too sure, will have to dyno when it gets back.

It dyno'd about 60-70hp crank (about 55 rwhp) above stock with 91 octane before it was supercharged, thanks to headers, full exhaust, intake, pulley, oil cooler, and software. Before the supercharger, a Dinan 5.8L stroker equipped M5 will walk it, but at a relatively slow delta.

At the Streets of Willow racetrack (relatively tight, technical track), counterclockwise, it got up to about 130mph on the straight with me driving.

After all said and done, it should be over 700 at the crank. It's a pretty conservative kit at just 6 psi. It's designed for reliability and usability, with a torque curve that mirrors the stock one. OE compression ratio is 12.0:1, so going much over 6psi this isn't all that worthwhile on 91 octane.



What is this "enough" you speak of? 🙂
Click to expand...

Wow, 130 mph at streets. That thing would be downright scary on the big track... 700 hp and 2 tons of German auto screaming down that 1/2 mile straight.
 
much props to your wife for being able to handle that kind of power. If I gave my wife a car that powerful she'd probably crash and total it while trying to back it out of the driveway!
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top