Turbo and Boost for 500-550hp?
04-10-2011, 02:31 PM
#16
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No, you can also increase power by increasing the RPMs; keeping the torque from falling off at higher RPMs and keeping the pumping losses to a minimum.
Then you don't need as much cylinder pressure as you say.
The gt#s are a reference more for the compressor side, and just because they're either a little bit on the small side or the big side, that doesn't necessarily determine the power characteristics/powerband. That is determined more by the hotside. That being said, looking at compressor maps, only the biggest gt30s will flow enough air, on the compressor side, to accommodate the above power goals. Otherwise, a gt35 (I think the 600 crank hp is a misprint; they're all good for 650)
Then you don't need as much cylinder pressure as you say.
The gt#s are a reference more for the compressor side, and just because they're either a little bit on the small side or the big side, that doesn't necessarily determine the power characteristics/powerband. That is determined more by the hotside. That being said, looking at compressor maps, only the biggest gt30s will flow enough air, on the compressor side, to accommodate the above power goals. Otherwise, a gt35 (I think the 600 crank hp is a misprint; they're all good for 650)
04-10-2011, 02:39 PM
#17
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Here in germany i drive 102oct ultimate gas.
SFR Stage 2 header, 3" downpipe, LR Intake
LR 3", Tial Wastegate
Checked with Dbilas Cam
PLX logging, Apexi duty, KS4 Knock, Haltech Map
Now i need only the perfect turbo
I think about the GT35 or the Turbonetics gtk650.
Late spooling hmmm...Look at the charts here.
SFR Stage 2 header, 3" downpipe, LR Intake
LR 3", Tial Wastegate
Checked with Dbilas Cam
PLX logging, Apexi duty, KS4 Knock, Haltech Map
Now i need only the perfect turbo
I think about the GT35 or the Turbonetics gtk650.Late spooling hmmm...Look at the charts here.
04-10-2011, 04:16 PM
#20
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I was going to suggest EFR as well.
Yes, late spooling....compared to a normal modified 951. Not criticising, just saying.
Yes, late spooling....compared to a normal modified 951. Not criticising, just saying.
Last edited by 333pg333; 04-10-2011 at 05:35 PM.
04-10-2011, 08:56 PM
#22
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04-11-2011, 01:12 AM
#24
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I am afraid you do not have a understanding of the four stroke Otto engine....raising the rev cealing will not increase output unless you incorporate major head cchanges which mandates a compression increase=cylinder pressure=power output or do you believe a 6:1 compression ratio engine will have high peak hp when you rev it 10 k ?
power = torque x RPM
your statement in your original post was:
"the only way you increase power in a Otto engiine is a increase in cylinder pressure either thru comp or Fi"
which by and large only affects the "torque" part of this equation.
Therefore I'm simply saying that your statement, as read, is a piece of misinformation. It's possible that YOU might not fully understand how power can be made in a IC engine.
04-11-2011, 04:03 AM
#25
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Can't see too much reference to Porsche on dbilas site? Do they make custom grinds? How about the throttle bodies and other such items?
04-11-2011, 04:06 AM
#26
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Which dbilas cam are you going to use?
The new Efr are brand new so most likely not. On other platforms they are performing well.
04-11-2011, 05:08 AM
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Wishmaster have you thought about using a 16v head?
04-11-2011, 05:10 AM
#29
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btw that avatar goes well with the 'You only live once Race Team!'
04-11-2011, 05:54 AM
#30
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Borg Warner needs custom mount or at least quite a bit modified OEM one. Not sure quite how different the EFR housings are from the previous version in terms of actual size and layout, but you can see that even on a modified OEM mount they come too close to the motor. It had to modified further to allow room.