eluv

Does anyone know the average gains from an ecu tune on an E63 as well as the costs? I can't seem to find any real answers, just people saying how the C63 is so great to tune. Thanks.

MHP

63s are 63s as far the engine is concerned. C63s are further detuned from the factory than Es which explains the difference in power. Also C63s have a 2.5" exhaust from the manifolds back vs 2.75" for the other 63s.
We'll have E63 results when Jeff gets his car back from the shop for our ECU/TCU tuning (1-2 weeks I think) but otherwise I'd expect to make the same type of power/tq (slightly higher due to the larger dia exhaust) that a C63 does post tune.

MB_Forever

On average, stock E63s seem to dyno between 410 to 415 hp in 4th gear (take away 10 whp if dynoing in 5th gear). Conservatively speaking, an ECU should give you at least 20 whp gain, which puts you at around 430 to 435 whp.

Ryder113

Results I have seen on the E63 are ranging betweed 30 and 35 rwhp at the dyno. depends on which tune you use. E63 comes with a higher hp rating stock than the C63. We gained 55rwhp on our C63 the higher power gain on the C63 is only because of what MHP said.

Fr33kn63

Yeah I should be able to provide some results. Unfortunatly my car is in the body shop another two weeks. I am also throwing on some lighter weight wheels. So gains should be significant. Shall see...

deaguero

Fr33kn63:

Do you run the Toyo R888's in the winter?

If so do you see any challenge running in the rain?

Regards & Happy new year!

Phil

Fr33kn63

Actually no. I was using them until middle of december and threw on some new all season rubber. Bummer was 3 days after putting new rubber on my stock rims they were stolen while in the dealers lot. The only real problem with running R88's in the winter month is the R compound the tire using doesnt react well to temps below freezing. Rubber hardens up and doesnt provide very good traction since the pavement is frozen. If you live in an area that isnt affected much by winter I would drive those tires all year round!

The R888's were fantastic. I really enjoyed riding on them all summer. great on the street and track. Rain became a little of an issue as the tread on the tire got short, but you would be suprised during the first 50% of the life of those tires because of the little tread it had , suprisingly it was fairly good in the rain.

I custom ordered some 19" for my car recently so not sure if I will be able to run R888's on these or not, but plan to run something like it again this summer. if my wheels hadnt of dissappeared I was planning on throwing a new set of R888's on the car in February for the 3/1 MIR event.

The only negative I found running those tires was they tend to be a tad noisey on the street. If you can deal with mild-moderate tire noise when at 40+ mph you will be very happy with the R888's

eluv

Thanks everyone!!

deaguero

Fr33kn63:

Thanks for the great info. I'm gonna go with the R888's.

In California with our dry warmer weather it really makes sense to go with the R888's

The little beast "Mini63" just spins the wheels from a dig (just like the 55)

Thanks again

Phil

Fr33kn63

The R888's you will get a lot better traction and are great tires. Just be aware that treadwear life is rated at 100. Dont expect more then 6-7 k on the tires if peeling out a lot.
Enjoy!

Ol'School

does 20-30 rwhp gain give a significant change in performance? I mean can you notice the difference ?

So if two identical cars were 20 rwhp away from each other, will it show in a traffic light to traffic light jump ?

Ol'School

I've always wanted to ask that ... wheel weight (specifically) has a significant effect on the over all performance of the car, right? I mean because of some complicated physics talk, losing say 10 lbs from wheels is entirely different than losing them from any where else in the car is that true ?

just wanna make sure ..