stephens

Where are you measuring the speed? The speeds you are quoting are not possible with the cars gear ratios as I understand them. The car should do roughly 19mph per 1000 rpm in 3rd gear. At 6100rpm this is 116mph.

Kens-E55

Actually Stephens that is pretty close. I'm trying to locate the article that listed all the ratios and MPH per 1000 RPM. 3rd gear was listed as 20.1mph/1k rpm. w/2:65 rear end. I consistently run 3rd all the way out and true to form the speedo is registering 133mph at shift point into 4th. What does yours read?? I can't see our speedos being that incorrect. Maybe your rear-end is different. If you shift at 6500 rpm and speedo registers 123mph-You may already have a 2:82 in your car. (A nice problem to have)

stephens

Definately not. I had the W210 E55 with the higher ratio, so know how it "feels". The ratio is definately 2.65. Once again I will refer to dyno sheets. Every dyno run I have seen which is calibrated for speed has the car redlining in 3rd at just under 200kmh. Another explanation may be that the speed calibration in your car may be optimistic.
I just checked my modelling software and it suggests the VMAX for 3rd is 211kmh @6500rpm. Further just did the mathematical calculation and the gearing suggests 32.5km/1000rpm (20.19mph per 1000rpm), or a VMAX of 211kmh.
The answer must be tyre slip on the dyno.
Sorry for the bum steer Kens-E55. looks like the 2.83 with LSD may be the way to go after all.

E55 POWER

CONGRATS!!!

E55 POWER

Note: I sent you an e-mail.

stephens

Thanks guys. I have received many emails etc of encouragement from you guys which has been great. Unfortunately I have accidently deleted some of your emails, so any of you who hae requested details of part numbers etc should do so again.

For any of you looking to do similar mods you have two choices.
I am currently making up 10 kits which are for customers in Australia, I can get additinal kits made up if required. (notice how I used the term customers, I now have a new business venture, European Performance Development).

I am happy to supply part numbers for those of you looking to do the jobs yourself, but there is alot of time consuming fabrication involved, since none of the parts fit standard. The cost of the kit is signifcantly less than the cost of the parts and getting them modified as a one off, but may be usefull for those of you who have fabrication and mechanical skills. You will also need aluminium welding equipment, the ability to make up custom aluminium lines etc and a hoist makes the job a lot easier.

The finished product looks OEM. We took my car into the local service department to see if they could pick what had been done and they were shocked that it was not a factory job, not noticing that anything had been done until the changes were pointed out to them.

There are four main systems.
1. A modified SL55 low temp radiator, water pump, hoses and fittings.
2.Additional water capacity with a custom 5 litre water bottle that fits out of sight under the windscreen washer bottle with brackets and hoses.
3.Replacement air-conditioning condenser, mounts and fittings.
4. Replacement power steering cooling system and fittings.

Fitting is takes around four hours and requires the removal of the front bumper panel ( the whole front end comes away as one plastic piece).
I have chosen to use all new parts rather than modifying parts on the car so it can simlt be put back to standard if required, so it is possible to save money by modifying the pwoer tseering and aircon condensor systems in the car rather than replacing them.

For anyone interested email me through the board.

Symbolic

stephens,

Due to popular demand, your PM Box is full! Apparently, it won't accept additional messages until such time as you clean it out. As soon as you do, I will PM you.

stephens

Done!

e55 baller

http://www.bergwerks.com/different.jsp

another tuner that products high performance differentials. Looks like they only have stuff for older models at this time though

e55 baller

Just called Steve at Berg Werks...they can do an LSD with 306 gearing for $5500. I assume this would be a noticeable gain over the 282s. It requires the TCU to be pulled out, shipped, and reprogrammed.

stephens

Further update from the dyno this morning.
Went to a new Dyno Dynamics facility with latest software that is closer to Dynojet readings.
The car ran an impressive 478hp uncorrected at the rear wheels, which it holds flat from 5000 to 6200rpm.
No more power fall off, with 8 dyno runs from 2000-6200rpm done over a period of 1/2 an hour.
Max AIT reached was 48 degrees C, but generally maxed out at 44-45 degrees C an improvement of virtually 10 degrees from our last run and 40 degrees less than standard.
I'll post more details tonight along with the dyno printouts when I have time.

Finnish C32

Stephens,
do you still recommend that CAI-mod? can i expect anything with gains with CAI-mod and water wetter alone? my waterpump is replaced by dealer couple days ago. do you have those CAI-mod pictures?

Thanks,
Ville

E55 POWER

What is the CAI mod?

Thanks,
E55 POWER

stephens

CAI- cold air intake. I am going to experiment with S55 and SL55 air tubes to see if any further gains are available.
I am confident of achieving better than 500rwhp, without headers. If the claims of Kleemann are correct and they are worth another 50rwhp, a total of 550 should be realistic. Remember these are Dyno Dynamics, not Dynojet numbers, so are conservative producing results similar to the Mustang dyno.

stephens

A good place to start is changing the antifreeze mix to about 20% if your climate allows and using the water wetter. In conjunction with the pump change this reduced my max temp in the 0-200kmh run from 83 C to 65 C. It is now down to 45 and I am confident of getting under 40, with a maintenance free SC cooling upgrade.

stephens

Dyno graph as promised. For those of you familiar with dynos, these readings are comparable to those on a Mustang dyno.
Bottom graphs are with the handbrake left on!

Jrocket

Another great thread to check out.

stevebez

Any pics of the install or what the kit was comprised of ?

Zod

man do we not have like a moding section or a do it your self one. These threads need to be grouped up and placed some where!
like :
headers
pullies
IC coolers
etc

great work man