Originally Posted by rapidcossie
Originally Posted by Stu @ M Developments
Originally Posted by rapidcossie
I staed that a 25% increase in capacity will see you a 25 % increase in power...
I got shot down in flames for stating this even tho i know it to be true.
So tell me then, since your 100% right and certain the rest of us are talking nonsense... if the Cylinder head you bolt this new capacity bottom end onto cannot flow 25% more air than it did previous. Where is your extra power being made and how was it achieved?
I did not state that you will get your increase in ALL cases.
The engine I originally commented on was my friends subaru EJ20 which is known for having big valves anyway.
He bolted on an EJ25 bottom end and got a 25% increase in power.
This is all I commented on but was told this HAD to be un true due to these laws and ideas people had.
I said I had wittnessed with my own eyes so I knew it to be true.
I then provided other examples where this is also true.
I dont claim to be an expert or do I claim to be 100% correct but I did claim that these increases where achiveable where other said thy were not.
I think this shows that everyone is arguing about different things and are all correct in their own way. To finalise my thought on why you cant just increase capacity and gain great power;
If you had taken that scoob to 3.0 litres and gained 50% more power, do you hionestly think that then boring it to 6 litres will actually double it? Thats what your posts have suggested you think, hich is why everyone is debating it...
Some engines are capped miles away from their flow limits and some are damn close to it indeed. And this topic, incidentally, was about Turbocharged engines not NASP, and i dont care how big you bore out teh YB, a 4litre standard YB with a T4 on will NOT make 1100BHP no matter what your friends say.
