Quote:
Originally Posted by serialk11r
Sorry if I missed something, but you said the most anyone got from a 2ZZ naturally aspirated was 250hp...is this with stock displacement and rev limit? If so, then sure, 300 is possible.
But to make 300hp on this engine without changing rev limit, you have to give it at least 50% more air, which is more than .5 bar boost due to heat of compression. And this is while performing more work during compression cycle at low lambda values, and doing less expansion.
If I'm not mistaken, the Exige S makes a bit under .5 bar boost stock, but only picks up <15% more torque/power. And you're telling me that you expect 50% more with under 1 bar boost among other mods? 20% on top of 200hp is 240, you don't simply pick up 60hp from a cat/muffler delete. If the exhaust caused that much restriction manufacturers would've gotten the whole active noise cancellation thing going a long time ago. I don't believe that a stock engine could have enough detonation headroom built in to withstand 1 bar boost, no matter how well it's intercooled.
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you do realize that the exige is on a conservative tune for reliability reasons right? no car manufacture would put as aggressive as possible on a factory car and sell it? it just wouldn't be reliable...
this is a basic tune on a exige with no other changes other than ecu mapping
this is WHP and it shows before and after the tune
this 7psi 11.5:1 comp, completely stock
EDIT: every car manuf runs a conservative tune thats why you're always able to tune more out of a stock engine....