New ATP Ball Bearing Setup
#226
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That's assuming a constant VE and BSFC.
Check out these plots:
https://www.evolutionm.net/forums/ev...oct-magic.html
Boost is actually increased in the upper rpm range and torque is still dropping.
Check out these plots:
https://www.evolutionm.net/forums/ev...oct-magic.html
Boost is actually increased in the upper rpm range and torque is still dropping.
Edit: I do agree that the boost could be higher than 17 psi at redline, but because the torque is falling the entire time, I think its an MBC. What do you think the boost is?
Last edited by mrfred; May 1, 2011 at 07:19 AM.
#227
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All these big turbos need high pressure wg actuators and/or ecu based boost control.
I am wondering if these turbos will affect the cooling capabilities of the engine due to being so close to the block. The cooling passages will be heated from both sides instead of just from combustion. What are your thoughts?
[/QUOTE]
I am wondering if these turbos will affect the cooling capabilities of the engine due to being so close to the block. The cooling passages will be heated from both sides instead of just from combustion. What are your thoughts?
[/QUOTE]
Last edited by bambooi; May 1, 2011 at 09:43 AM.
#228
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Looking at the Black dyno and the ATP low boost dyno, the torque curves start to drop at 6k rpms so I'm guessing that's where the VE starts to take a dump.
On both charts, both setup are making ~400 lb-ft at 6k rpms. Assume the ATP is at 27psi and the Black at 32psi. Of course, different fuels, different dynos, yada yada. The Black went from 32psi to 36psi and torque still dropped from 400 lb-ft to ~345 lb-ft, or about 55 lb-ft difference even with a 4psi boost increase. So if it had kept a constant 32psi, maybe the torque would have dropped a total of about 100 lb-ft. The ATP went from 400 lb-ft to about 280 lb-ft or a 120 lb-ft difference. So I'd guess maybe about a 2psi taper?
#229
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All these big turbos need high pressure wg actuators and/or ecu based boost control.
I am wondering if these turbos will affect the cooling capabilities of the engine due to being so close to the block. The cooling passages will be heated from both sides instead of just from combustion. What are your thoughts?
I am wondering if these turbos will affect the cooling capabilities of the engine due to being so close to the block. The cooling passages will be heated from both sides instead of just from combustion. What are your thoughts?
Damn, that is a really tight fit....Who's car? Your car?
#232
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#233
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i wish there were more people testing the gtx3582r.. with the high pressure actuator, ported hotside, and a ported exhaust mani i think it would do quite well or better than the results posted
still debating. this or an fp black
still debating. this or an fp black
#235
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wish somebody else would test it on a built 2L, buschur, awd, english racing, etc
Last edited by 4g63evoeight; Nov 10, 2011 at 01:57 PM.
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