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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > possible bhp gain??



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      09-02-2011, 10:41 AM   #1
s33tsy
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possible bhp gain??

Hi,
I was wondering what type of bhp gain would i be looking at for my e90 320d m sport 163 with a 335i exhaust conversion, blow off dump valve and custom remap??
regards
shaun
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      09-02-2011, 10:42 AM   #2
s33tsy
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or if it works better a chip instead of a remap from chip express which says a 30bhp gain anyway with no mods such as the exhaust and dump valve
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      09-02-2011, 11:39 AM   #3
Bungle009
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Remap alone should give around 40Bhp. Not sure the other mods would make a grea deal of difference.
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      09-02-2011, 11:50 AM   #4
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Don't do the dump valve mate, that would seriously chav up what was a nice Car.

Also making it a 335i replica is not the coolest thing going either.

Re-map from a reputable company should see your car 200+BHP
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      09-02-2011, 04:31 PM   #5
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Dump valve will not add 1 BHP, but will make it Chavtastic as Carlos says........

190+ on that spec if engine in good condition.
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      09-02-2011, 04:35 PM   #6
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Quote:
Originally Posted by s33tsy View Post
or if it works better a chip instead of a remap from chip express which says a 30bhp gain anyway with no mods such as the exhaust and dump valve
Have a look at these guys +33 bhp re-map not a chip.

http://www.superchips.co.uk/search?m...32&variant=119
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      09-02-2011, 04:40 PM   #7
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Quote:
Originally Posted by s33tsy View Post
or if it works better a chip instead of a remap from chip express which says a 30bhp gain anyway with no mods such as the exhaust and dump valve
I would also look at this exhaust system I have a friend who says his gained 20bhp after fitting.

http://www.schmiedmann.com/3_series/...ge15.htm#13803
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      09-02-2011, 06:20 PM   #8
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A vta dump valve will spoil the smooth running of your car.
I had one for a short time on an impreza and it caused no end of problems-despite a remap after every individual mod.I quickly changed back to a recirculating type.
If you're determined to fit a vta,get it remapped properly.
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      09-03-2011, 12:48 PM   #9
s33tsy
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cheers for the replies lads
ive decided for the 335i exhaust as originally planned no dump valve and a custom remap from a specialist firm such as chip express
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      09-04-2011, 10:58 AM   #10
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For most output a custom exhaust with no silencers is the only way to go
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