Z4M Coupe Performance Upgrades ??

[exdos]

one of the main reasons why im not saving my pennies for a supercharger is that i know i'd never get insured....at my age its hard enough with just the "boggo" ///M

:thumbsdown:

Woots, until you can extract all you can from a car when going around corners, buying more power is a complete waste. If you can learn to go around corners, say, 5mph faster than you can now, your car will perform as if you've got another 50bhp or more. I'll see if I can dig out an excellent analysis based on this point.

 

[Mrbodger]

When I had my modded VX220 I insured with Competition Car Insurance. They're very sympathetic to heavily modded cars and work on a sliding scale according to your bhp. They also include a couple of track days too.


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[daz05]

one of the main reasons why im not saving my pennies for a supercharger is that i know i'd never get insured....at my age its hard enough with just the "boggo" ///M

:thumbsdown:

Woots, until you can extract all you can from a car when going around corners, buying more power is a complete waste. If you can learn to go around corners, say, 5mph faster than you can now, your car will perform as if you've got another 50bhp or more. I'll see if I can dig out an excellent analysis based on this point.

Big +1, there's an amateur at the ring running 8:20s in his Twingo with only circa 150bhp.

 

[BMWZ4MC]

I went head to head with a 450 bhp ESS supercharged E46 M3 on a track day in the summer. He had aftermarket suspension, a BBK, and racing seats with harnesses totalling 10K of mods. Still we were dead even. As Exdos says, races are won and lost in the corners... I wouldn't have lusted after more power had I not spent a couple of years and many track days learning how to handle the power available out of the box. I like the idea of the ESS setup allowing incremental increases in power in line with improvements in driver skill and brakes / suspension etc.

 

[exdos]

I learned to drive The Ring by attending the BMW International Fahrerlehrgang at which I was instructed by Dirk Häcker, BMW's Director of Functional Integration, who has been instrumental in engineering some of the stuff on BMW's cars. He drives about 400 laps of The Ring per year testing stuff and has done so for more than 20 years and he has also driven the BMW Ring Taxi for fun. I learned so much from him just by chasing him around The Ring and from a Pax lap with him. Since then, all my cars now seem to go round corners so much better than they used to do on the same road tyres. 8) :driving:

 

[ga41]

Completely agree with Exdos and daz05 but in my case it's extremely difficult to get professional tuition as there's no one out here that does that...

 

[ga41]

I've even thought of contacting someone and actually flying them in just for that. Perhaps if i get a few more people in...

 

[BMWZ4MC]

ga41, you'd be better off flying to the UK and joining a forum-organised group tuition day. Principles are not car-specific and are cheaper to learn when not having to import the tutor!