500bhp lotus S1 Exige build...
Discussion
JayK12 said:
Not upgrading the Valve train too if changing cams? You could rev them to 9000 easily with all your upgrades and (valve train).
EPIC work never the less!
From my engine builder...EPIC work never the less!
Rpm breaks rods and pistons. You could not rev a boosted k22 to 9k in a million years if you want it to stay together! Even a k20 at this power level would be pushing your luck. The cylinder pressures on the rods and pistons will be insane at 1.5 bar +
EX51GE R said:
JayK12 said:
Not upgrading the Valve train too if changing cams? You could rev them to 9000 easily with all your upgrades and (valve train).
EPIC work never the less!
From my engine builder...EPIC work never the less!
Rpm breaks rods and pistons. You could not rev a boosted k22 to 9k in a million years if you want it to stay together! Even a k20 at this power level would be pushing your luck. The cylinder pressures on the rods and pistons will be insane at 1.5 bar +
Chris Peacock said:
Heard that the rotrex gives no "whine"... Unlike a jrsc?....
Great build btw....
Yes, no whine...Great build btw....
You can hear the Jackson car, then mine (the last one the camera follows)
http://i48.photobucket.com/albums/f222/lotusman1/a...
Edited by EX51GE R on Tuesday 11th October 21:31
EX51GE R said:
From my engine builder...
Rpm breaks rods and pistons. You could not rev a boosted k22 to 9k in a million years if you want it to stay together! Even a k20 at this power level would be pushing your luck. The cylinder pressures on the rods and pistons will be insane at 1.5 bar +
Ah your stroked 2.2. A K20 with 500hp will rev to 9000rpm with the right spec and build. Yeah the pressure will be high thats why your upgrading the rods and pistons. I rev a 2.2 H22 which again is really hard to rev, to 9200rpm on curent 1.3bar make 500hp. They will stay together. Rpm breaks rods and pistons. You could not rev a boosted k22 to 9k in a million years if you want it to stay together! Even a k20 at this power level would be pushing your luck. The cylinder pressures on the rods and pistons will be insane at 1.5 bar +
I just find it a shame when we have to drop the rev of a VTEC motor for boosting, im a hardcore VTEC lover. lol.
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