Want more power.

Hi all, I am a proud recent owner of the 840ci 4.4L

Just wondering if i can get more power out of my car without spending too much cash.

It seems that the 4.4l unit only 286 bhp is restricted. I think its easily capable of much more bhps!!!

Has anyone fitted super chip? The claimed about 305 bhp.

What about changing air filter and platinum plugs?

Any advise will be great.

 

BMW840ci

Just reading around I think there is alot you can do. I'm thinking along the same lines.

Consider that its not just BHP's which makes your car potentially faster; Maybe consider improving the handling and stability first. It will feel alot faster if it can take corners more easily. It already sits low and corners beautifully for a big car. I think a few of the guys here have had their suspension lowered/stiffer springs etc...ask them. I use mine to pick up the nipper and the school lane has F*****g speed bumps so lowering at this time may not be the best solution for me.

Maybe you want to make sure your pride and joy can stop more easily. I am not a fan of the original brakes. I've been looking at a brake upgrade. Bird's do it in the South of England for the 8. Good reports but V.expensive. 3.5K all in front only. Still looking at other options.

Chips, read this
http://membres.lycos.fr/technice31/mods.php

If you were after better low end performance consider a higher ratio differential. This has (I believe) the greatest impact on the 8. Its a low reving engine anyway. EErrrr forget about fuel ecomony.

Hi Joe,

Be really carefull when choosing aftermarket exhausts for the E31. I had aftermarkets for a while and so did a friend who has an E31. We both went back to the standard units. My experience was I couldn't notice any perfomance increase although it did sound much more aggressive - but eventally they drove me nuts - at certain speeds the the harmonics and resonance from the different exhausts would could consistent noise in the cabin. I ended up turning a smooth turbine like sound into a droning hoon mobile so they got the flick. Seems if the back pressure and design isn't just right you can do more harm than good.

Yeah losing out to a hair dryer / rice cooker Impreza STI just isn't on. Time you gave it a taste of Bavarian automotive supremacy. Chipping is best place to start especially if you can run at least 95RON.

Phil - you have lower the car, get the stage 1 Eibachs like I did you won't regret it. I have less problems on speed humps that I did with the E30.

Ian

P.S. I see they're selling the Aussie built Holden Monaro in the UK now. Are they shipping it with Fosters in the boot?

Hi Phil,

Try a reputable independant...the official dealers tend to balk at aftermarket mods. You'll need a full alignment, balance and checked the steering is centred after they fit the springs.

Ian.

Ian,

Thanks again.

Cant wait to get my superchip sorted. I always use optimax, thats the best juice i can find in the UK.

Joe

@micky_h

Thanks for the advise.

By the way, have u seen the price for the bird's supercharger???....

costs 14000quid nearly the price of my car!!!