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328ii

New member
Just done dyno test after fitting 3.15 differential to my 328iM - here are the results...

Before differential fit...

RPM BHP KW NM BMEP
2000 60.7 45.264 216.1 9.699
3000 96.7 72.109 229.5 10.301
4000 135 100.669 240.3 10.786
5000 170.3 126.993 242.5 10.885
5500 184.2 137.358 238.5 10.703
6000 186.2 138.849 221.0 9.918

After differential fit...

RPM BHP KW NM BMEP
2000 60.8 45.339 216.5 9.715
3000 98.1 73.153 232.9 10.450
4000 135.4 100.968 241.0 10.818
5000 172.1 128.335 245.1 11.000
5500 190.5 142.056 246.6 11.069
6000 193.4 144.218 229.5 10.301

RPM GAIN%
2000 0.165
3000 1.448
4000 0.296
5000 1.057
5500 3.420
6000 3.867


Graphic summary...





NOTE : Last test (315) done with 235x45x17 tires at the rear - results WILL be slightly better with the usual 235x40x17 (currently 1 puncture)
ALSO : BMEP here only 'abstract' term - i can see flames coming...

Thanks to Quinton @ Dastek

8?>
 

328ii

New member
zama said:
So I spotted this today, is this perhaps you?




nope - does not have small boot spoiler - where was this anyway..?

8?>


DoC1471 said:
go kart for me,serious fun thoe pocket rockets :praise::rollsmile:

+10^10

For sure its extreme fun and driving - good exercise as well..!
I would like to try superkarts (250cc) someday - not sure if i have the 'balls' though..?

8?>
 

Doomsdaya

///Member
328ii said:
Just done dyno test after fitting 3.15 differential to my 328iM - here are the results...

Before differential fit...

RPM BHP KW NM BMEP
2000 60.7 45.264 216.1 9.699
3000 96.7 72.109 229.5 10.301
4000 135 100.669 240.3 10.786
5000 170.3 126.993 242.5 10.885
5500 184.2 137.358 238.5 10.703
6000 186.2 138.849 221.0 9.918

After differential fit...

RPM BHP KW NM BMEP
2000 60.8 45.339 216.5 9.715
3000 98.1 73.153 232.9 10.450
4000 135.4 100.968 241.0 10.818
5000 172.1 128.335 245.1 11.000
5500 190.5 142.056 246.6 11.069
6000 193.4 144.218 229.5 10.301

RPM GAIN%
2000 0.165
3000 1.448
4000 0.296
5000 1.057
5500 3.420
6000 3.867


Graphic summary...





NOTE : Last test (315) done with 235x45x17 tires at the rear - results WILL be slightly better with the usual 235x40x17 (currently 1 puncture)
ALSO : BMEP here only 'abstract' term - i can see flames coming...

Thanks to Quinton @ Dastek

8?>

235/45/17 is like tractor tyres LoL, but I can only imagine whats it like once passed 4000rpm now with the new diff :excited:
 
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