Very efficient head flow... aight peace :chicken:
Import Tuner/Skunk2 RSX-T
http://www.importtuner.com/features/0611impp_skunk_2_acura_rsx_turbo
Just read the magazine and found the online article, and I'm just wondering, how is a GT35R able to do 575WHP at 15psi and hell even 640 on pump gas. I'm baffled.
Just read the magazine and found the online article, and I'm just wondering, how is a GT35R able to do 575WHP at 15psi and hell even 640 on pump gas. I'm baffled.
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Magazines always tend to be full of shit with their feature cars and estimate power. This one, could be a fake dyno sheet..
yep. Ive seen it done in person many times on Hondas. Nothing new here.Very efficient head flow... aight peace :chicken:
Honda has perfected the 4-banger!!! Nothing else comes close. Now only if the damn company would make a darned V-8!!
re:
Optimistic dyno with a bottle of N2O hiding under the seat is my guess. :scratch:
Sonny
Optimistic dyno with a bottle of N2O hiding under the seat is my guess. :scratch:
Sonny
Fixed for you.VW has perfected the 4-banger!!! Nothing else comes close. Now only if the damn company would make a darned RWD!!
true!! LOL!! Say, hypothetically, Honda/Acura did make a RWD platform >= 6-cylinders. Would you guys still consider one over a Lexus? Maybe Honda doesn't have a RWD platform because its hard for them to even compete with other brands that already do. There isn't much competition in their segment as it stands, so it would be a great risk going that route. just my opinion. What do you think????Fixed for you.
/end threadMitsu has perfected the turbo 4-banger!!! Nothing else comes close. Now only if the damn company would make a darned good tranny!!
lol you guys crack me up
Any relatively affordable\small\rwd\4cyl\turbo would just be the end of all the FF cars around. Everyone would get it and the aftermarket for something like that would be rediculous.
THere was a built K24 Fit in a magazine i have, and they said it can make 700hp on C16. I also questioned this.
Boost is just an indication of restriction, that's why you get more hp with the same boost when you add cams, the VE of the head gets better and you flow more air with the same boost = more power. Honda heads flow great as they are high NA's from the factory that require good headflow to get the good NA power from them.
honda has some of the best heads out on the market.. They are able to make such power at that low boost because of how efficient their heads flow.. Most fully built supra heads dont even flow as well as stock honda heads..
honda did make a couple of rwd cars.. nsx and s2000
honda did make a couple of rwd cars.. nsx and s2000
Honda heads flow very well. But 575 WHP at 15 PSI suggest that particular engine makes 285+ WHP NA. Now you can do that with an NA engine built to be NA with sky high compression (think 14:1+), revving to 10K+. But I find it hard to believe that engine was built with that kind of compression.
How do you figure out how much power an engine makes NA given how much power it makes at a certain amount of boost? More specifically what mathematical method did you use to come up with that number?Honda heads flow very well. But 575 WHP at 15 PSI suggest that particular engine makes 285+ WHP NA. Now you can do that with an NA engine built to be NA with sky high compression (think 14:1+), revving to 10K+. But I find it hard to believe that engine was built with that kind of compression.
Rule of thumb is that atmospheric pressure (on this planet of course) isHow do you figure out how much power an engine makes NA given how much power it makes at a certain amount of boost? More specifically what mathematical method did you use to come up with that number?
~14.7 PSI (1 bar) at sea level. For every 1 bar above this you would add the same amount of power the engine made without boost (twice the oxygen with twice the fuel means twice the power).
Now this can be affected by turbo size. If you have a large turbo capable of sustaining 25+ PSI all the way to redline in a given engine then it should operate very efficiently at 15 PSI on that same engine and it could squeeze as much power as the engine can possible make at 15 PSI.
If on the other hand you have a turbo that can just sustain 15 PSI (meaning it couldn't even do 16 PSI) on that engine to redline then the turbo would most likely be operating outside it's efficiency range and because it's being "maxed" it would also most likely be heating the air more than the turbo in my previous example, dropping the power down.
There are some things though that can make an engine more than double HP at 15 PSI. For instance if you have an engine that can rev to 10K safely but the head in NA form doesn't flow well enough for the power to keep climbing past say 8K RPM's when you put a turbo on and force feed air into the engine and are able to sustain 15 PSI all the way to 10K RPM (so the turbo is "forcing" the engine to ingest 15 PSI despite the head "restriction) then the car's power can be higher than double at that RPM, you would notice though that at the NA's peak power RPM (say 8K RPM) the power would be roughly twice as high at 15PSI. Of course the boosted engine's power could then keep increasing to 10K RPM's as long as the 15 PSI was maintained all the way to redline.
BTW this all assumes the exhaust is capable of flowing enough as well as the intake piping, etc.
To ME 575 WHP at 15 PSI on that Honda engine seems like a stretch.
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