E9x M3 ESS SC

[gw_e92]

Hey guys, I have been looking around at supercharger kits for my e92 and I have seen that ess seems like the most used and most loved supercharger kit all around, but I dont know if I should go for a G1 kit or the 625 kit. Any suggestions?

[darkbmw]

625 kit

[flsupraguy]

Originally Posted by darkbmw

625 kit

Can you please elaborate?

[darkbmw]

There is not much info on g1 and the dyno I have seen are less impressive 505 whp, vs the 625 dyno of 530 ish

[Jerezblack.m3]

G1 is the newer kit but not a lot of people have it so we dont know if its as reliable as the 625

[SAMM3Y]

G1 is supposed to be quieter but I like the sound of the vortech blower sounds like a jet liner.

[JackieChiles]

Originally Posted by SAMM3Y

G1 is supposed to be quieter but I like the sound of the vortech blower sounds like a jet liner.

I have a 625 on my m3 and it’s not loud at all. Can’t imagine an sc being much quieter

I love my 625, haven’t had it for long as it was on the car when I got it, but as far as performance I can’t imagine wanting more.

Smooth linear power. Basically the E9x powerband on steroids. And actually pulls all the way to redline unlike stock which tails off towards redline.

No clue on the g1

[SAMM3Y]

Originally Posted by JackieChiles

I have a 625 on my m3 and it's not loud at all. Can't imagine an sc being much quieter

I love my 625, haven't had it for long as it was on the car when I got it, but as far as performance I can't imagine wanting more.

Smooth linear power. Basically the E9x powerband on steroids. And actually pulls all the way to redline unlike stock which tails off towards redline.

No clue on the g1

No denying the vortech blower is noisy at idle with the hood up echoing in the garage, like I said I enjoy the noise but I can see some people might not. It's very mechanical but so is the s65b40. When they came out marketing it as quieter I believe they were trying to say it sounds more like a factory supercharged car maybe more for the owners wags than the owners

[Kwike92M3]

Ive got the ess625, and i love it.
You can always go with a custom tune, e85, etc later to squeeze out more power, but out of the box, its extremely satisfying.

[gw_e92]

Originally Posted by Kwike92M3

Ive got the ess625, and i love it.
You can always go with a custom tune, e85, etc later to squeeze out more power, but out of the box, its extremely satisfying.

Originally Posted by darkbmw

There is not much info on g1 and the dyno I have seen are less impressive 505 whp, vs the 625 dyno of 530 ish

Originally Posted by Jerezblack.m3

G1 is the newer kit but not a lot of people have it so we dont know if its as reliable as the 625

Originally Posted by SAMM3Y

G1 is supposed to be quieter but I like the sound of the vortech blower sounds like a jet liner.

Originally Posted by JackieChiles

I have a 625 on my m3 and it's not loud at all. Can't imagine an sc being much quieter

I love my 625, haven't had it for long as it was on the car when I got it, but as far as performance I can't imagine wanting more.

Smooth linear power. Basically the E9x powerband on steroids. And actually pulls all the way to redline unlike stock which tails off towards redline.

No clue on the g1

Originally Posted by SAMM3Y

No denying the vortech blower is noisy at idle with the hood up echoing in the garage, like I said I enjoy the noise but I can see some people might not. It's very mechanical but so is the s65b40. When they came out marketing it as quieter I believe they were trying to say it sounds more like a factory supercharged car maybe more for the owners wags than the owners

Originally Posted by Kwike92M3

Ive got the ess625, and i love it.
You can always go with a custom tune, e85, etc later to squeeze out more power, but out of the box, its extremely satisfying.

Thank you guys for the info. It has really helped. I like the sound of the blower anyways and don't care much about mechanical noises so I wouldn't mind a louder kit. Just didnt know if one was better than the other or not. again, thanks!

[DRLane]

Originally Posted by gw_e92

Thank you guys for the info. It has really helped. I like the sound of the blower anyways and don't care much about mechanical noises so I wouldn't mind a louder kit. Just didnt know if one was better than the other or not. again, thanks!

Why are you writing off Harrop option?

[tom @ eas]

G1 is newest hardware - lighter, quieter and more efficient. More info in this thread:

ESS Tuning G1/G1+ Intercooled Supercharger Systems now released
https://www.m3post.com/forums/showthread.php?t=1674956

[M3R1]

Originally Posted by DRLane

Why are you writing off Harrop option?

The Harrop is tough to beat on these cars. I bought my car with the VT-625 kit already installed. While I love the ESS kit, I would have gone with the Harrop.

[Melbourn3]

Originally Posted by M3R1

The Harrop is tough to beat on these cars. I bought my car with the VT-625 kit already installed. While I love the ESS kit, I would have gone with the Harrop.

Any reason for that?

[M3 hacker]

Originally Posted by SeanE463

Any reason for that?

I think because of the extra low rpm torque it gives.

[DRLane]

Originally Posted by SeanE463

Any reason for that?

Low end torque, sound, maintenance, fitment / installation, and because Mike at BPM is awesome.

Downsides: price, not as easy to upgrade for increased power.

[M3R1]

Originally Posted by SeanE463

Any reason for that?

See below

Originally Posted by M3 hacker

I think because of the extra low rpm torque it gives.

Correct

Originally Posted by DRLane

Low end torque, sound, maintenance, fitment / installation, and because Mike at BPM is awesome.

Downsides: price, not as easy to upgrade for increased power.

Harrop Pros
1) These cars need low end power, Harrop likely provides the most
1a) I think the PD style blowers sound awesome
2) They look awesome in the engine bay
3) I'm not chasing massive power so for me upgrading is not a deal breaker

Having had big V8's with big power and torque it would be nice to have a little more low end shove.

ESS Pros
1)I have heard that the ESS tune's are the most reliable, this is a very compelling reason to stay with ESS. I have no evidence or facts to support such claims however.
2) The power delivery is just like the stock just significantly faster.

Bottom line if you want a faster E9x ///M all the superchargers available will likely provide that.

All said, my ESS 625 kit is awesome. After 5-6K it pulls VERY (VERY) hard. A SC'd E9x M3 might just be one of the most satisfying cars to drive considering it's price. Even taking price out of the equation, it's still hard to beat.

[Melbourn3]

Ok gotcha now the question is reliability and longevity of the S65, can these motors/tranny’s hold the power without grenading? Also would it be better to purchase a modded e9x already or just buy the parts new and get it installed?

[M3R1]

Originally Posted by SeanE463

Ok gotcha now the question is reliability and longevity of the S65, can these motors/tranny’s hold the power without grenading? Also would it be better to purchase a modded e9x already or just buy the parts new and get it installed?

There are so many factors to consider. IMO any car when maintained properly and cared for will outlast one that hasn't been. Mine only had 19k miles on the clock and was SC'd for only about 3K when i bought the car. Even then I spent the money to do the RB's. This gave me a little piece of mind. As I suspected they were not perfect (pretty clean actually), but in no jeopardy of failure.

I feel like around 500-550whp seems to be the number (~7lbs of boost) that these kits shoot for, any more is really for bragging rights. 500whp for a 3600lb car is fast for the street, there is no need for more (IMO). There will be still plenty of people that push the envelop and are willing to take the chance. There are no guarantees in life. If you are very concerned, keep it stock... For me a SC'd S65 was the plan all along, i was very fortunate to find one that was cared for, very low mile and already modded. Good luck to you sir!

[Adriano917]

I’ve also been debating between the 625 or the G1 and although I haven’t seen that many videos or dyno sheets from the G1 as opposed to the 625, I’m gonna go with the G1. I’m not planning on being the highest HP M3 out there, maybe later bigger injectors and an E85 tune. Anybody with the G1 that have dyno sheets with 91 OCT on here ?

[tom @ eas]

Originally Posted by Adriano917

I’ve also been debating between the 625 or the G1 and although I haven’t seen that many videos or dyno sheets from the G1 as opposed to the 625, I’m gonna go with the G1. I’m not planning on being the highest HP M3 out there, maybe later bigger injectors and an E85 tune. Anybody with the G1 that have dyno sheets with 91 OCT on here ?

Here's a couple dyno sheets, configurations in notes:

[Properstyle]

Originally Posted by Adriano917

I’ve also been debating between the 625 or the G1 and although I haven’t seen that many videos or dyno sheets from the G1 as opposed to the 625, I’m gonna go with the G1. I’m not planning on being the highest HP M3 out there, maybe later bigger injectors and an E85 tune. Anybody with the G1 that have dyno sheets with 91 OCT on here ?

If you looking for highest hp then g1 ain’t going to do it. Neither is 91/93