So who has the most highly modified CSL?

[alexk]

the engine tuning route (cams, porting, headers and full system combined with a remap).

I reckon you would get at best +10HP.
It would cost more than 6k EUR... which is not good value for money

[_Nathan_]

I wrote a wrote a long reply but lost it as phone logged out of forum.

20k engine was a highly regarded European engine builder, made 420 on MoTeC and had 20 hour warranty, not to say it would automatically explode at 20 hours.

Take p54 as benchmark and work backwards towards road use friendly but I agree with the guys above, the engine is the wrong place to start on these cars, just a hiding to nothing, even with 420bhp it'd still be slow in a straight line relative to the turbo stuff.

I am hoping for 370 from my engine on MoTeC m190 fwiw.

[Mike RT4]

I think the essence of a csl is not the power of the engine, but its balance and grip, so if your heart is set on modifying a csl- then I think best plan would be to remove as much weight, as well as a few choice mods....


but seeing as your track car is the crazy escort, you could get a stroker kit for your/another e90 ~530bhp is doable I think? That is a car I would like to see on track:notworthy:

The E90 is a barge - a nice engine in what effectively is a 3 series that is almost the size and weight of an E39 M5. It's an everyday car, not a proper M car IMO. BMW lost their way after the E46, which is a reasonable compromise of size, power and weight (and just raw enough to feel a bit special).

So the basic gist is that everyone is debunking the normal tuning methods and basically the CSL engine can't be improved :hahaha:?

[shimmy]

There is plenty of room for stickers on it......pM neilM for more details.


Nismo, Rays, etc all fit nicely just in front of the rear wheel arch.

Also when the aluminium aftermarket fuel regulator blows off the OeM steel threaded connector and the car turns into a fireball, BMW Monidal recovery will likely be very sympathetic.

[Mike RT4]

One thing the CSL doesn't need is anything doing to it's exterior. No stickers or aftermaeket wheels. The ONLY thing I can think of wanting to do is perhaps the bigger rear OE wheels on the front as well (for track use) and that is it.

Obviously at the moment, all I'm hearing from are those that haven't touched their engines - I really want to hear from those that have :wink: :blalalala:.

[Bealo]

You should have bought mine when you had the chance you SAP....

If you have a V8 barge and that unreliable Track car where does the CSL fit in?

It should be on the track...... :thumbs:

[_Nathan_]

So the basic gist is that everyone is debunking the normal tuning methods and basically the CSL engine can't be improved :hahaha:?

No one is saying that, just that diminishing returns kicks in very early and chasing power is pretty pointless when you get better laptimes from other modifications.

Fact is you could spend a lot of money chasing power with crank, pistons, rods, cams, big valve head, injectors, map the DME for that (have to retain that due to SMG unless you can be bothered to reverse engineer the comms and logic between Engine and SMG ECUs) and lets say maybe you get a real 410bhp (125bhp/L) then at full weight you'll still have a car that is slow in a straight line :thumbs:

[monkeycsl]

Painfully slow WTF :banghead:

[Mike RT4]

Painfully slow WTF :banghead:

I'm spoiled - most things seem painfully slow .

http://www.youtube.com/watch?v=o5VV79oHSwA&list=UUMJdbe1Kky5WsSI2QyEumMA&index=9

[Steve B]

To put your mind at ease, I forgot to say, I know Bealo and rstoughy (however, please don't hold that against me ).

and meeeee......artyman:

[Mike RT4]

You should have bought mine when you had the chance you SAP....

If you have a V8 barge and that unreliable Track car where does the CSL fit in?

It should be on the track...... :thumbs:

That's where it will be :blalalala:. It's just the Cossie (with the straight cut dog 'box) is just too focused for driving huge distances to track days (e.g. the 'ring), so I want something that will thrill and that I won't fall asleep driving .

[Mike RT4]

and meeeee......artyman:

Having seen the wheels you first put on it, I thought it must be a replica :whistle: :blalalala:.

[Mike RT4]

No one is saying that, just that diminishing returns kicks in very early and chasing power is pretty pointless when you get better laptimes from other modifications.

Fact is you could spend a lot of money chasing power with crank, pistons, rods, cams, big valve head, injectors, map the DME for that (have to retain that due to SMG unless you can be bothered to reverse engineer the comms and logic between Engine and SMG ECUs) and lets say maybe you get a real 410bhp (125bhp/L) then at full weight you'll still have a car that is slow in a straight line :thumbs:

I appreciate that, hence why I wanted to speak to people that had gone down that route to see what their real world experience of various mods were.

I know what good suspension and brakes do as I have Ohlins TTX and 378mm water-cooled WRC AP 6-pots / 315mm titanium pistoned Grp A AP 4-pots on my current track car.

[Porker]

Engine-wise mine is slightly modified and runs at 384hp, can't say the difference with a regular one is that noticeable.

-Supersprint stepped headers
-Supersprint mettalic Cats
-Supersprint mid section
-Supersprint back box
-Schrik 280/288 cams and Schrik rocker arms fitted
-Re-mapped by PPE @ 384bhp/411Nm

[Mike RT4]

Engine-wise mine is slightly modified and runs at 384hp, can't say the difference with a regular one is that noticeable.

-Supersprint stepped headers
-Supersprint mettalic Cats
-Supersprint mid section
-Supersprint back box
-Schrik 280/288 cams and Schrik rocker arms fitted
-Re-mapped by PPE @ 384bhp/411Nm

I'm assuming by your mods that all the extra power is above 7000rpm - did you find the cams lost some of the standard car's mid-range? Have you got a before and after overlaid power plot to see where the gains / losses were?