Been trying to work out why my Turbo Renesis Bridgeport is so ineffective ........yet we see such huge gains on PP engines .
My theory :
On the Renesis the only VE gain that can be had seems to be in replacing the carried over exhaust gases with intake air . Looking at the chamber at that point in it's cycle, it looks like somewhere around 5% of the total swept area . So a maximum gain of that magnitude is possible. Looking at my results so far , i may be getting close to these gains , but nowhere near what a PP engine achieves.
So I started to think about why such big gains are possible on PP engines .
I haven't seen any discussion on this so I don't know what explanations have come forward from the 7 guys.
The Peripheral port stays open way longer than the renesis side port and therefore allows much more air to flow through it ...it keeps flowing after the chamber has compressed the exhaust gas .
I'm actually thinking the gains are being made ..............outside of the engine . What if the intake air goes straight through the engine and into the exhaust . The fuel then ignites creating combustion just before the turbo . This creates more heat and pressure outside of the engine ..similar to antilag!Result is turbo is spooled up in part by this .... meaning the engine doesn't have to do it . Result = more power .
Just a theory ... anyone else got any ideas on this ?
Cough ...Teamrx8 ?
My theory :
On the Renesis the only VE gain that can be had seems to be in replacing the carried over exhaust gases with intake air . Looking at the chamber at that point in it's cycle, it looks like somewhere around 5% of the total swept area . So a maximum gain of that magnitude is possible. Looking at my results so far , i may be getting close to these gains , but nowhere near what a PP engine achieves.
So I started to think about why such big gains are possible on PP engines .
I haven't seen any discussion on this so I don't know what explanations have come forward from the 7 guys.
The Peripheral port stays open way longer than the renesis side port and therefore allows much more air to flow through it ...it keeps flowing after the chamber has compressed the exhaust gas .
I'm actually thinking the gains are being made ..............outside of the engine . What if the intake air goes straight through the engine and into the exhaust . The fuel then ignites creating combustion just before the turbo . This creates more heat and pressure outside of the engine ..similar to antilag!Result is turbo is spooled up in part by this .... meaning the engine doesn't have to do it . Result = more power .
Just a theory ... anyone else got any ideas on this ?
Cough ...Teamrx8 ?
Turbo Bridgeport discussion
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