Does supercharging requre low compression like turbos?

[525_M20]

Hi everyone,

Silly question, but I noticed a lot of aftermarket superchargers work with 10:1 compression.

Thanks,

Mark

[SpecM]

-Dependes on how much boost. But, in general, yes.

[The Fast One!]

the superchargers running on the 10:1 CR are going to stage 1 kits, and will have no aftercooler and will run generally for BMW kits 5.5psi.

if you want to upgrade the boost to say 9 or 10 with a new belt then yes you want to definity lower your CR, probly to 8.8:1

[MR 325]

Any boost will bump up your compression ratio

Try to learn how it works before you do it

[The Fast One!]

yeah definitly read up on it.


a supercharger and turbo are the same thing, just one runs on exhaust(turbo) and the other on belts(s'charger) in order to created the compressed air for boost.

[Jordan]

Keep in mind the m20 doesn't have knock sensors like all modern engines. I doubt a stock m20 will cope with more then 5-7psi.

I've seen a stock m20 shatter pistons at 12psi SC.

[diegom6]

Keep in mind the m20 doesn't have knock sensors like all modern engines. I doubt a stock m20 will cope with more then 5-7psi.

I've seen a stock m20 shatter pistons at 12psi SC.

it's been proved that stock m20's are capapble of handling arround 1 BAR (14-15PSI) with out major problems, tuning is the KEY

[Bav///Motorworks]

^^^ it really is all about the tuning.. u can run 11.1 CR with a supercharger with a nice aftercooler such as meth/water injection or u can go all meth.. and theres a lil trick with em methanol injection. besides that it can cool the charge (pending the setup) up to 200 degree F instantly, it raises ur octane. very safe and prooven

[The Fast One!]

it's been proved that stock m20's are capapble of handling arround 1 BAR (14-15PSI) with out major problems, tuning is the KEY

screw good tuning if you are turbo'ing an m20. the motor only costs 200 for a bottom end. just buy one or two spare blocks and a spare head and boost 14psi daily.:D

[conrod]

screw good tuning if you are turbo'ing an m20. the motor only costs 200 for a bottom end. just buy one or two spare blocks and a spare head and boost 14psi daily.:D

Then be prepared to change engines daily!

[PJ]

screw good tuning if you are turbo'ing an m20. the motor only costs 200 for a bottom end. just buy one or two spare blocks and a spare head and boost 14psi daily.:D

Congratulations, you just wrote the dumbest shit i've so far read on this forum.

[The Fast One!]

Congratulations, you just wrote the dumbest shit i've so far read on this forum.

are you a fucking moron? didn't you see the ":D "

it was called a joke D-bag. get a sense of humor.

[X2theZ3]

are you a fucking moron? didn't you see the ":D "

it was called a joke D-bag. get a sense of humor.

LOL.

Why are you making out with mozilla firefox?

IE needs some love too.

[The Fast One!]

LOL.

Why are you making out with mozilla firefox?

IE needs some love too.

haha

I know I really don't mind the IE anymore, but I used to absolutely HATE it!

I thought the making out part was still appropiate since i still like some of the "features" mozilla has.

maybe I'll look for one with making out with IE, then that'll really mess with some peoples minds.

[diegom6]

are you a fucking moron? didn't you see the ":D "

it was called a joke D-bag. get a sense of humor.

I was like WTF at first but then I saw your emoticon and knew you were joking, and no, he is not a fucking moron, he know a shit load of things about turbo.