Modded 35is, Rolling Road Results

bmw>benz said:
Are you running any transmission tune?

I have a 14' 35is with 15k miles. After throwing on a JB4, intake, and e30 mix I am getting some considerable slippage in 6th gear applying full throttle at 3k rpm. It appears that I need to get a tune for the DCT to compensate.
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None at all, running spot on here. Sorry I cant be of more help! :(
 
R.E92 said:
There's something wrong with the dyno if you are making 438 at the crank but only 295 at the wheels. That's a 30% drivetrain loss!
Did they do something stupid like calculate the power using the manual gear ratios not the DCT?
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With 100 dyno brands there's usually 100 different results regarding that.
I'd love to see a 100-200kph pull on a flat road timed with a 10hz gps.
A 0-100kph (0-62mph) takes more of the car weight in consideration, but with these power levels its virtually impossible to get consistent low times due to traction problems in 1st
 
bmw>benz said:
Are you running any transmission tune?

I have a 14' 35is with 15k miles. After throwing on a JB4, intake, and e30 mix I am getting some considerable slippage in 6th gear applying full throttle at 3k rpm. It appears that I need to get a tune for the DCT to compensate.
Click to expand...

You should have done some research on what you were buying. You only have to google "JB4 and DCT" to see that there is issues there.
The JB4 is a piggyback unit, not a proper tune. You really need to remove the JB4 from your car before you end up with an expensive DCT replacement bill. Get yourself a proper tune like MHD.
 
lordgrover said:
Surely though, a rolling road dyno measures the power at the wheels, and back-calculates for the crank figure?
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Yes you're correct. I think the problem with this dyno is that has measured the power created at the wheels without compensating for losses internally on the dyno. Then when calculating the crank figure they add all the losses back on hence why the crank figure is correct but the wheel figure is massively out.

I follow Guido's opinion that 100-200 (or 60-120) GPS verified times are much more relevant as a measure of performance. Dynos give such wildly varying results between brands.
 
Any chance of some performance numbers OP? Numbers seem to be rare for these cars when mapped,

0-60, 0-150 etc.... Even a 1/4 mile time would be fantastic (If you can of course!)
Would really appreciate it! :)
 
jleckenby said:
Twin Turbo said:
jleckenby said:
Will see what I can do. I know it takes me under 2 seconds to do 30-60!
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Go to York race way - as that local to you - and I hope you can arbitrate my personal best
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Mmm, that does sound like a plan!
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Just checked, the next run is 15th April. Aka next week! Im not far from the leeds area either.....
 
Well I am up for getting my little two ltr whipped by you big boys!

Hope you can get into the 12 sec mark (if not quicker)
 
Hmm, I'm on pub crawl in York on the friday, does sound like fun though! Do you have to register or can you just turn up?
 
jleckenby said:
Hmm, I'm on pub crawl in York on the friday, does sound like fun though! Do you have to register or can you just turn up?
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Just turn up, £10 for 1 run, or £40 for unlimited runs through the day IIRC
 
Before I forget, do you have pics of your car on your Eibach springs? Thinking of lowering mine too!

Did you have any issues with rubbing against the arches? Any spacers? Etc..

Thank You
 
jleckenby said:
Hmm, I'm on pub crawl in York on the friday, does sound like fun though! Do you have to register or can you just turn up?
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Well its not hard in a 35is - foot down and go :driving:

https://www.youtube.com/watch?v=0QpLRJrhqO4

A bit to wet your apatite
 
I bet this car is a beast once moving ... but getting traction off the line will require a lot of skill beyond planting your foot ! :D

I need to make a mental note to avoid any 35iS when in my A45 :D :D It doesn't feel any quicker than my standard 35iS was ... so I would get murdered in a straight line once on the move :x
 
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