Mikey's LR2.4 MIVEC 10:1 Motor Build
Jun 30, 2010, 03:58 PM
#678
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@ Acree - same boat I'm in. If things work out we might do a comparison at some point. I know that Aaron has previously compared the M2s to the regular S2s, and there was no comparison. I want to say 30whp - 50whp out the top for the S2s, if memory serves.
Fact is, Greg improves upon his designs while Cosworth doesn't really (unless their cams are breaking).
Fact is, Greg improves upon his designs while Cosworth doesn't really (unless their cams are breaking).
Jun 30, 2010, 05:31 PM
#680
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Okay guys, I'm getting ready to go out with the ER guys for a few drinks. I'll post some data and more graphs later tonight.....Mikey
Jun 30, 2010, 08:19 PM
#682
This is taking into account-
675 / 4% (10.3:1 vs 9:1) = 648 @ 36psi vs Johnny making 622 at the same boost.
It doesnt take into account though power at 7800 where Mikey is up 80whp, not just 50whp peak. This is where it gets touchy since we also have a ported head thrown in for good measure.
The sim that I refused to believe was saying 40whp on average....and on average that might be correct, but certainly not peak if everything else was equal. For purposes of this discussion I do not believe the LR2.4 makes more power because of the rods, they are there for high rpm stability.
aaron
Jun 30, 2010, 10:38 PM
#683
*IMPORTANT TO NOTE*
To save some trouble for Greg, anyone interested in these cams can save the phone call to GSC for the time being. They dont have a name so they dont exist.
They are not going to be widely available, they will only be available through EnglishRacing, and they are not drop in friendly. There are definite requirements to make these cams work properly, headflow, springs, turbo size, compression, etc.
thanks
Aaron
To save some trouble for Greg, anyone interested in these cams can save the phone call to GSC for the time being. They dont have a name so they dont exist.
They are not going to be widely available, they will only be available through EnglishRacing, and they are not drop in friendly. There are definite requirements to make these cams work properly, headflow, springs, turbo size, compression, etc.
thanks
Aaron
Great Job Guys! Good meeting you Mikey!
Jun 30, 2010, 11:50 PM
#688
They seem to be (while working the math off Johnny's motor) about 26whp boost to boost.
This is taking into account-
675 / 4% (10.3:1 vs 9:1) = 648 @ 36psi vs Johnny making 622 at the same boost.
It doesnt take into account though power at 7800 where Mikey is up 80whp, not just 50whp peak. This is where it gets touchy since we also have a ported head thrown in for good measure.
The sim that I refused to believe was saying 40whp on average....and on average that might be correct, but certainly not peak if everything else was equal. For purposes of this discussion I do not believe the LR2.4 makes more power because of the rods, they are there for high rpm stability.
aaron
This is taking into account-
675 / 4% (10.3:1 vs 9:1) = 648 @ 36psi vs Johnny making 622 at the same boost.
It doesnt take into account though power at 7800 where Mikey is up 80whp, not just 50whp peak. This is where it gets touchy since we also have a ported head thrown in for good measure.
The sim that I refused to believe was saying 40whp on average....and on average that might be correct, but certainly not peak if everything else was equal. For purposes of this discussion I do not believe the LR2.4 makes more power because of the rods, they are there for high rpm stability.
aaron
