increasing compression

[shonky12]

hi people, would it be as simple as putting in a bottle of engine flush in with the oil and a bottle to free sticky valves to increase compression a little. the reason im asking is because im selling the vp oneday and i want to know what to do to increase compression a little with out spending money and only buy a bottle of additive to put in.

currently it was 120 psi and it should be at around 150

[stocky]

yeah who needs to work on an engine when additives do everything for you. you can also buy this nitrous stuff you mix in with your fuel tank and gives you like 100hp extra

[shonky12]

where do you buy that nitrous stuff you said about from

[hakhawk]

supermarket

[shonky12]

shall i try valve lifter for 5 dollars at kadina cheap as chips

[hakhawk]

you do know how compression works dont you?

if you use an additive to clean the carbon and such off the valves and piston, etc. it is going to drop compression, not raise it.

the only ways you are going to make a noticeable change in compression is to redo valve stem seals, piston rings, shave head, etc.

or maybe you could just pour some oil into the intake and let it bake onto the piston top to increase compression.

[shonky12]

ok thanks i havent thought of that which part of the intake do i pour the oil into

[hakhawk]

the oil bit was a joke.

i suggest taking it to a mechanic and get them to look at it for you.

DONT pour ANYTHING into the intake

[SweetWagon]

Spark plug holes. dont think it would work too well though, besides blowing alot of smoke! Have you tried using a thicker oil to decrease blow-by?

[scrabet]

umm r u serious

[vtdemon]

Hehe, is this a joke account? If not... GEEZ!

In the past to increase compression I've bought a can of it from Supercheap (comes in a pressure pack) and squeeze a bit in through the spark plug holes. You just gotta be real quick getting the the plug screwed back in.

[VLDavo]

mahaha when i grow up i wanna be just like you shonky12..

u should also put some clohrine in with the brake fluid ... and when u fill up the oil with the additives down forget to top up the oil right up to the filler cap

[matty88]

Water works a treat as it's non compressable. Get your hose and squirt it into your fully sick CAI setup and it'll boost compression tenfold. Save more money by getting rid of the oil filter as well, flyscreen wire works better

[andyman]

ahh i love this, full of useful information

[andyman]

Water works a treat as it's non compressable. Get your hose and squirt it into your fully sick CAI setup and it'll boost compression tenfold. Save more money by getting rid of the oil filter as well, flyscreen wire works better

try this but dont put to much in or you'll have that much to compress the motor wont run after

[andyman]

Spark plug holes. dont think it would work too well though, besides blowing alot of smoke! Have you tried using a thicker oil to decrease blow-by?

a tip, oil wont stop blow by, blow by is blow by and nothing will cure it without overhauling

[scrabet]

just bolt a big supercharger on it will cure you engine problems jsut got to figure out diff trans and tyres and if that dont work u can donate it to me

[stocky]

im waiting for shonky12 to some how blame his compression loss on the chinese

[Dayvo]

ok thanks i havent thought of that which part of the intake do i pour the oil into

One of Gods special children

[scrabet]

haha lol

what else can u blame the chinese for

[VT-565]

you do know how compression works dont you?
if you use an additive to clean the carbon and such off the valves and piston, etc. it is going to drop compression, not raise it.
the only ways you are going to make a noticeable change in compression is to redo valve stem seals, piston rings, shave head, etc.

Mostly true, but sticky valves will also drastically decrease compression. Let's talk also about the benefits of cleaner valves promoting better port flow...I don't agree with the "mechanic in a can" either, but let's not burn the less knowledgable, they help us learn from their mistakes too

[commsirac]

It may be possible to advance the timing a little if compression(the fuel burns faster when it is compressed) is down in all cylindrs....which may restore a little performance.

Can't say Ive ever tried this, so do at your own peril.....at let us know what happens. Dont know what engine we are talking about, if its a v6 dont think you can easily change that anyway.

[andyman]

It may be possible to advance the timing a little if compression(the fuel burns faster when it is compressed) is down in all cylindrs....which may restore a little performance.

Can't say Ive ever tried this, so do at your own peril.....at let us know what happens. Dont know what engine we are talking about, if its a v6 dont think you can easily change that anyway.

its a bit hard to advance the ignition timing on an ecotec when its non adjustable,

[hakhawk]

Mostly true, but sticky valves will also drastically decrease compression. Let's talk also about the benefits of cleaner valves promoting better port flow...I don't agree with the "mechanic in a can" either, but let's not burn the less knowledgable, they help us learn from their mistakes too

quite true, i was only thinking of actual carbon buildup inside the chamber area

[hakhawk]

its a bit hard to advance the ignition timing on an ecotec when its non adjustable,

not adjustable without tuning the ecu anyway.