anyone good with supercharger compressor maps?
#1
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Engine Machinist
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From: Suffolk/Cambs
anyone good with supercharger compressor maps?
as title, whats this good for on your average 2.0 engine roughly at a sensible pressure?
http://www.eaton.com/EatonCom/Produc...rchargers/M62/
seen a few on ebay relatively cheap... and i do like the noise
http://www.eaton.com/EatonCom/Produc...rchargers/M62/
seen a few on ebay relatively cheap... and i do like the noise
#2
Borg Warner EFR Equipped!
Joined: Apr 2005
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From: In the unit, building a 450bhp Time Attack Focus!
M62's are fine on a 2.0.
Mine ran 310bhp on a 9.5:1CR ST170 engine, ported head and Powerworks kit @ 1.0 bar of boost.
You will need to intercool it though as the air charge temps do get high. The PW kit was chargecooled and kept on top of it but I know the Jackson Racing kits weren't and they were only good for around 0.5 bar of boost and hitting 240bhp ish.
Mine ran 310bhp on a 9.5:1CR ST170 engine, ported head and Powerworks kit @ 1.0 bar of boost.
You will need to intercool it though as the air charge temps do get high. The PW kit was chargecooled and kept on top of it but I know the Jackson Racing kits weren't and they were only good for around 0.5 bar of boost and hitting 240bhp ish.
#5
to convert eaton maps to compare with turbo maps,
100 (m^3/hr) is equal to 4.445 LBS/MIN air flow.
P.S. this is purely in as much as compresser flow is concerned. obviously not the only variable for working out the power availible.
from this you can work out that 300hp worth of flow is approx 674 m^3/hr (in the same way that LB's a minute of flow on turbo compresser maps can be approximated into horsepower)
hence you can see that with the M62 charger, at 674 m^3/hr (300BHP) its nearing its limit in turms of efficiency falling off rapidly and as Will Pedly rightly said, this correspond's with a dramatic rise in inlet temps that need to be delt with if you want to push the compresser that hard.
JOSH
100 (m^3/hr) is equal to 4.445 LBS/MIN air flow.
P.S. this is purely in as much as compresser flow is concerned. obviously not the only variable for working out the power availible.
from this you can work out that 300hp worth of flow is approx 674 m^3/hr (in the same way that LB's a minute of flow on turbo compresser maps can be approximated into horsepower)
hence you can see that with the M62 charger, at 674 m^3/hr (300BHP) its nearing its limit in turms of efficiency falling off rapidly and as Will Pedly rightly said, this correspond's with a dramatic rise in inlet temps that need to be delt with if you want to push the compresser that hard.
JOSH
Last edited by Joshy; 24-05-2011 at 10:23 AM.
#6
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From: Suffolk/Cambs
cheers for the info lads
i know the m62 isn't going to be the most efficient, but i'm only planning a budget build with reasonable power, so it sounds like it should do me fine! something a little bit different too
i know the m62 isn't going to be the most efficient, but i'm only planning a budget build with reasonable power, so it sounds like it should do me fine! something a little bit different too
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