Supercharger Advice.....

Supercharger Advice.....

Author
Discussion

philchunghk

Original Poster:

57 posts

212 months

Friday 27th April 2007
quotequote all
I'm thinking of supercharging my E46 330... I read you can place a blow off valve on them. Is that true????

eliot

11,703 posts

260 months

Friday 27th April 2007
quotequote all
so you want a supercharger because you can fit a BOV?

philchunghk

Original Poster:

57 posts

212 months

Friday 27th April 2007
quotequote all
No I want a supercharger for more power but I was wondering if a BOV cn be fitted.

mat205125

17,790 posts

219 months

Friday 27th April 2007
quotequote all
Who cares whether it can, or whether it can't. What difference does it make so long as the conversion work.

Please don't say that an important part of the forced induction conversion is the P-Tssssh noise that a dump valve make? These do nothing on supercharged cars, especially low boost road conversion of normally aspirated cars.

A blow off valve and dump valve are not the same thing too.

StuB

6,695 posts

245 months

Friday 27th April 2007
quotequote all
I've got a centrifugal blower on my Z and no blow off valve, in fact the 5 supercharged Z's I know in the UK don't, but yes you can is the simple answer.

The 330 E46 would benefit from an ESS TX-2 conversion. Have a look at Graham's Z4 3.0 engined car in this forum for more details. There's also a guy at Simpson Motorsport who's got a boosted Z4 3.0 (all M54 engines), which has been around for a year or so.

GreenV8S

30,427 posts

290 months

Friday 27th April 2007
quotequote all
StuB said:
I've got a centrifugal blower on my Z and no blow off valve,


Is the throttle downstream of the blower? What happens when you are running with the throttle closed, does the blower just stall?

StuB

6,695 posts

245 months

Friday 27th April 2007
quotequote all
GreenV8S said:
StuB said:
I've got a centrifugal blower on my Z and no blow off valve,


Is the throttle downstream of the blower? What happens when you are running with the throttle closed, does the blower just stall?


Err, yes, throttle downstream of the blower and errr, dunno, but presume pressure may bleed away somewhere other (back to inlet?) than to atmosphere, whithout a 'pfisshhhh'. I could spend hours trawling the ESS website, or you could

Neil_Bolton

17,113 posts

270 months

Friday 27th April 2007
quotequote all
StuB said:
GreenV8S said:
StuB said:
I've got a centrifugal blower on my Z and no blow off valve,


Is the throttle downstream of the blower? What happens when you are running with the throttle closed, does the blower just stall?


Err, yes, throttle downstream of the blower and errr, dunno, but presume pressure may bleed away somewhere other (back to inlet?) than to atmosphere, whithout a 'pfisshhhh'. I could spend hours trawling the ESS website, or you could


Oh bloody hell, now you've got me looking on there - two choices for me I would say - 4.5k for a charger, or even cooler - 3/4k for a fitted used E46 M3 engine scratchchin now that would be hilarious with my 316i badge

Damn you lot.



Edited by Neil_Bolton on Friday 27th April 14:30

sjj84

2,390 posts

225 months

Friday 27th April 2007
quotequote all
Have a word with Roy of CA Automotive, anything he doesn't know about BMW tuning, supercharging in particular, probably isn't worth knowing.

philchunghk

Original Poster:

57 posts

212 months

Friday 27th April 2007
quotequote all
I found out the supercharger uses a by pass valve and the unused pressure is directed back in the inlet and reused. So a bov can be used. whats the difference between a dump valve and a blow off valve then??? I dont think there is much difference. Actually I think its the same thing.

StuB

6,695 posts

245 months

Wednesday 2nd May 2007
quotequote all
philchunghk said:
I found out the supercharger uses a by pass valve and the unused pressure is directed back in the inlet and reused. So a bov can be used. whats the difference between a dump valve and a blow off valve then??? I dont think there is much difference. Actually I think its the same thing.

Sounds like bLow off valve's dump to atmosphere.

festernath

652 posts

242 months

Thursday 3rd May 2007
quotequote all
BMW offered an ACS supercharger as a dealer fit option a few years ago on the 330i. From memory it was about £5k fitted. Might be worth looking into.

daver

1,209 posts

290 months

Thursday 3rd May 2007
quotequote all
Neil_Bolton said:
...3/4k for a fitted used E46 M3 engine scratchchin


Where does it say that? idea

shadowninja

77,419 posts

288 months

Thursday 3rd May 2007
quotequote all
StuB said:
philchunghk said:
I found out the supercharger uses a by pass valve and the unused pressure is directed back in the inlet and reused. So a bov can be used. whats the difference between a dump valve and a blow off valve then??? I dont think there is much difference. Actually I think its the same thing.

Sounds like bLow off valve's dump to atmosphere.


nope. BOV=DV



And to the original poster, save yourself thousands of £s...
www.bodykitsonline.co.uk/saber_electric_dump_valve.htm

hehe

baz1985

3,612 posts

251 months

Thursday 3rd May 2007
quotequote all
festernath said:
BMW offered an ACS supercharger as a dealer fit option a few years ago on the 330i. From memory it was about £5k fitted. Might be worth looking into.


discontinued by ACS Aachen in 2005 sadly.