[mikem]

Well, after a few months trying to decide what to do, I`ve ordered a supercharger. At the end of last week I was thinking about a used M6 and on the weekend I decided it was definately a GT3 but on Tues I went out in an ESS demo car and the deals done. 460 hp @ 8K rpm, here we come (who needs an E92 M3 ).

[E92Fan]

Originally Posted by mikem

Well, after a few months trying to decide what to do, I`ve ordered a supercharger. At the end of last week I was thinking about a used M6 and on the weekend I decided it was definately a GT3 but on Tues I went out in an ESS demo car and the deals done. 460 hp @ 8K rpm, here we come (who needs an E92 M3 ).

Morning Mike

I can vouch for the quality of the ESS kits - I drove a few weeks ago a highly modified Z4M fitted with an ESS supercharger and it was pretty much flawless. The power delivery was smooth, linear and felt unburstable. There was almost an excess of power, and it was more than fast enough for some the glorious roads around Buckingham. My only gripe was that the supercharger whine was ever present - I suppose that's more down to the fact the Z4 is less well isolated from road/engine noise than the E46. Bottom-line, you'll enjoy the supercharger...

[mikem]

I`m quite surprised at that but the Z4M is a very raw car. With the bonnet up at tick over I couldn`t hear the charger on the E46 and again on the move with the standard exhaust I couldn`t hear it. In my cab with the ACS exhaust, I definately wont hear it.

Driveability as you say is superb, go easy and you`d never know it was there but if you floor it and commit yourself to using all the revs its insane. The only thing I can compare it to is a 996 Turbo.

[E92Fan]

The Z4M is certainly not as refined as an E46, and certainly not as quiet. I would imagine that's why I could hear the supercharger whine quite loudly. This Z4M also had a Schnitzer exhaust and suspension kit too (coincidence!)

The one other modification it had was a replacement Quaife diff to the standard clutch-plate Mdiff... don't know why the guy had it done but it did drive very well.

[squeezebm]

Top Man

[mikem]

Originally Posted by E92Fan

The Z4M is certainly not as refined as an E46, and certainly not as quiet. I would imagine that's why I could hear the supercharger whine quite loudly. This Z4M also had a Schnitzer exhaust and suspension kit too (coincidence!)

The one other modification it had was a replacement Quaife diff to the standard clutch-plate Mdiff... don't know why the guy had it done but it did drive very well.

Don`t really know a lot about diffs but I don`t think the E46 has a clutch plate one ? I do know that the M diff on the E46 allows 100% lock up and the quaffie I think only allows 80% lock up. Not that it means anything to me but it does make me psychotic in the wet.

[E92Fan]

The MDiff is a clutch-pate variety of diff, and yes it does allow up to 100% lock. The quaife is 80% in comparison. However the quaife doesn't wear out like the clutch-plate variety, and technically has a smoother transfer especially mid-way through the life off the diff...!

[squeezebm]

Originally Posted by E92Fan

The MDiff is a clutch-pate variety of diff, and yes it does allow up to 100% lock. The quaife is 80% in comparison. However the quaife doesn't wear out like the clutch-plate variety, and technically has a smoother transfer especially mid-way through the life off the diff...!

So your now implying that a quaife diff is better than the one used by the M division, we all know you like to play with your cars but please keep it all in the realms of reality

[mikem]

Originally Posted by E92Fan

The MDiff is a clutch-pate variety of diff, and yes it does allow up to 100% lock. The quaife is 80% in comparison. However the quaife doesn't wear out like the clutch-plate variety, and technically has a smoother transfer especially mid-way through the life off the diff...!

plenty of life in my diff, they fitted a brand new one just after I bought the car, even `tho there was nothing wrong with the old one (and people wonder why the extended warranty is so expensive )

[dxb335d]

Congrats Mike, sounds like she will be a right beast.

What torque will she have?

Carlos

[mikem]

Originally Posted by dxb335d

Congrats Mike, sounds like she will be a right beast.

What torque will she have?

Carlos

No idea. I`m not planning on towing anything with it, so didn`t ask.

[Steve A]

superb skills mikey boy - for a scotsman anyway

[jasongtr]

mike, what car do you have 330? as 460 bhp sounds tempting, also how much is the conversion??

[dxb335d]

Mike torque is also important. Im Guessing 500 ib ft with that HP. Superchargers usually quite torquey.

[mikem]

Stevie, I`m not a sweaty sock and thank christ I`m not English either (I did enjoy last weekends game `tho ).

Originally Posted by dxb335d

Mike torque is also important. Im Guessing 500 ib ft with that HP. Superchargers usually quite torquey.

Torque`s only important if you have a limited rev range Carl, it allows you to run longer gearing without hurting acc. too much.

The E46 M3 in standard form "only" has 265 lb/ft (the E92 M3 "only" has 295 lb/ft) but is still able to pull away from a 335d.

With the `charger torque will rise to about 350-360 lb/ft but more importantly the torque curve is almost completely flat from just over 3K rpm to 8K rpm.

Here`s a graph showing Rear wheel measurements (I`ve ordered the "Red" 460 kit)

http://forum.e46fanatics.com/attachm...2&d=1201332725

[Oli]

Wow!!! Well done that man,I bet thatll be awesomewith 460BHP!!!

Who's doing the conversion - CAA??

Looking forward to the write up

Hows the reliability with a supercharger on a M3??

[DaveC]

Originally Posted by mikem

Torque`s only important if you have a limited rev range Carl, it allows you to run longer gearing without hurting acc. too much.

This is, of course, true... however in the real world I'll take torque over HP any day - or better still both!

Most of us dont drive our car like a race car - revs fixed between 6500 and 8000 nor do we do dragstrip-like 0-100 runs. In the real world torque makes a car feel faster and more responsive, it makes it accelerate faster in normal rev ranges. Torque=good.

Remember also that if you are modding an engine without increasing its max RPM then every additional (B)HP comes directly from an increase in torque (HP=torque * RPM / 5252) .... if you haven't increased the max RPM then the only thing you can increase is the torque.

Oh and congratulations, hope its great!

[E92Fan]

Originally Posted by squeezebm

So your now implying that a quaife diff is better than the one used by the M division, we all know you like to play with your cars but please keep it all in the realms of reality

And you're implying that M Divison make the absolute best products on the market and the M3 is the dog's danglies of all things motor related??!! Just 'cos u have an M3...

[dxb335d]

Originally Posted by mikem

Stevie, I`m not a sweaty sock and thank christ I`m not English either (I did enjoy last weekends game `tho ).





Torque`s only important if you have a limited rev range Carl, it allows you to run longer gearing without hurting acc. too much.

The E46 M3 in standard form "only" has 265 lb/ft (the E92 M3 "only" has 295 lb/ft) but is still able to pull away from a 335d.

With the `charger torque will rise to about 350-360 lb/ft but more importantly the torque curve is almost completely flat from just over 3K rpm to 8K rpm.

Here`s a graph showing Rear wheel measurements (I`ve ordered the "Red" 460 kit)

http://forum.e46fanatics.com/attachm...2&d=1201332725

disagree,

stock for stock a 335d will live with an E46 M3 coupe. Vert is heavier also.

[Gibbo]

Originally Posted by dxb335d

disagree,

stock for stock a 335d will live with an E46 M3 coupe. Vert is heavier also.

....and you don't have to go over 4750 rpm keeping up in the d.

[mikem]

Don`t you mean "You can`t go over 4750 rpm keeping up"

Gibbo I`ve run Diesel cars for the last 5-6 yrs, I still have a 118d sport and a mondeo tdci for everyday use. I agree completely with what you say for everyday use but I don`t have this car for everyday use. It`s been garaged since Nov `till this week and its back in the garage again now `til the charger gets fitted and the better weather comes.

Davec, driving at 6K rpm plus is exactly what the S54 engine was developed for, extended running at high speed, not exactly practical but then I don`t need this as a practical car.

OliH, I`ve bought the kit from CAA but I`m getting if fitted at Simpsons. Reliability should be fine, people have been using FI on the S54 for a while now with no reported problems, the best thing about the supercharger is that boost is relative to revs, so will increase as the revs increase (unlike a Turbo that comes on "song") Max boost=max revs, which suits the S54 even more and has got to be kinder to the running gear.

Carloz, the weight difference between coupe and `vert is negligible to all but the most experienced of drivers (of which neither me or you are) if anything the "extra weight" of the `vert is over the back wheels which aids traction. I`ve run with 335d`s many, many times on both de-restricted `bahns and tracks.

[Oli]

Originally Posted by dxb335d

stock for stock a 335d will live with an E46 M3 coupe.

Sounds familiar!!!

(Sorry Oli- I've got to remove the link to the Pistonheads thread, in which Carlos has posted! Viv)