"high" boost on pump gas ?'s
#128
Banned. I got OWNED!!!
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very easy job done and its a sick set up ! let us know how you go
#130
Senior Member
iTrader: (1)
I dont know for sure..but i think they are more concerned about getting 500 rwhp on straight 93 pump with no AI etc reliably. Yes it can be achieved..people have done it on their own cars..but tuners generally may not want to do that for their customers as they know it may blow because you walking a fine line.
#132
BDC Motorsports
I dont know for sure..but i think they are more concerned about getting 500 rwhp on straight 93 pump with no AI etc reliably. Yes it can be achieved..people have done it on their own cars..but tuners generally may not want to do that for their customers as they know it may blow because you walking a fine line.
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#133
BDC Motorsports
B
#134
Senior Member
iTrader: (1)
Given the unreliability of pump fuels even from station to station, it's just too damn risky. There's a reason why several of us over time have shifted towards lower and lower boost figures (and ultimately lesser amounts of HP) for the tuning of street cars. So many variables involved with the largest one IMO being the grade of the fuel used. Most of those variables aren't even done properly or engineered correctly on most street cars anyways.
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#138
15-16psi or so is where I normally stop on 93 octane for customer cars depending on their setup. Here is a car we did a few months ago.
-SP
-61mm turbo
-93 Octane (no AI) boost creeps to about 17psi at high revs.
-500rwhp
With water injection I think this car would approach the 600rwhp range with 93 octane.
-SP
-61mm turbo
-93 Octane (no AI) boost creeps to about 17psi at high revs.
-500rwhp
With water injection I think this car would approach the 600rwhp range with 93 octane.
#139
I ran 22psi for 2 years no injection, my set up is errily similar to busted7's
alot of heat shielding, stand alone haltech e11 etc.. my setup is in
the post set up. High boost is possible and can be reliable- it's all in the
details. I'm going higher compression, larger turbo so 22psi on pump
days are over- for now.
alot of heat shielding, stand alone haltech e11 etc.. my setup is in
the post set up. High boost is possible and can be reliable- it's all in the
details. I'm going higher compression, larger turbo so 22psi on pump
days are over- for now.
you can do this if you could confirm good fuel- impossible to do.
#141
wannaspeed.com
iTrader: (23)
98 RON Octane x 0.95 = 93.1 AKI Octane (US measure)
100 RON Octane x 0.95 = 95 AKI Octane (US measure)
AKI = Anti Knock Index
MON = Motor Octane Number
RON = Research Octane Number
So if ya'll run 98 RON it's about the same, but 100 RON would be better by a couple points.
Before water injection found me, I ran 15-16 psi on the street. Now with water I'm running 20-22 at this point, and have less knock.
#142
wannaspeed.com
iTrader: (23)
It's probably relative though to the use of the car, and the abuse it sees. A car that's under boost constantly for long periods will probably need to watch the EGTs much closer then a street car that has short bursts here and there. or even a drag car. Sustained temperatures in my mind is more dangerous then short bursts of a higher temperature. But I'm no EGT expert so I could be off on this line of thinking.
#143
rotorhead
iTrader: (3)
and it seems like a car with higher intake temps would be running more dangerously at a given EGT than a car with lower intake temps. Though I don't think it would be easy to precisely quantify the relationship between intake temps, exhaust temps, and the possibility of knock.
I wonder: I'm running 8.5:1 compression rotors. Does that mean I can withstand higher temps under at least some conditions? Or does it not make a meaningful difference?
I wonder: I'm running 8.5:1 compression rotors. Does that mean I can withstand higher temps under at least some conditions? Or does it not make a meaningful difference?
#144
Will work for horsepower
and it seems like a car with higher intake temps would be running more dangerously at a given EGT than a car with lower intake temps. Though I don't think it would be easy to precisely quantify the relationship between intake temps, exhaust temps, and the possibility of knock.
I wonder: I'm running 8.5:1 compression rotors. Does that mean I can withstand higher temps under at least some conditions? Or does it not make a meaningful difference?
I wonder: I'm running 8.5:1 compression rotors. Does that mean I can withstand higher temps under at least some conditions? Or does it not make a meaningful difference?
I was always taught a cooler rotary will run better and longer. (If tuned correctly)
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