http://www.impulsengine.com/how/index.shtml

Have at it.... small diameter headers and hot air induction systems....you be the judge

Personally I'm waiting out for hover cars =]

Well, you could make all of those modifications (which were very vauge), or you could slap on a turbocharger and the the same output. How the hell would you heat the incomming air? I guess you could put a heating element from a blow dryer in there, but it seems like a lot of work. As intake speed would increase, intake air temp would decrease because of less contact to the heating element, and then you would be at less than optimal temperature. You would also, then have to vary the injected water temperature. Other losses would be seen in the pumping force required to force the exaust gases out.
And, why would the intake open before tdc, because then it would just get pushed back out when it got to tdc. You'd think they'd want to open it after tdc to get an even greater vacuum pressure.

but denny, its 1/3 the cost of a turbo/super and the same power!!!!

quote:

Originally posted by absolutepressure:
Well, you could make all of those modifications (which were very vauge), or you could slap on a turbocharger and the the same output. How the hell would you heat the incomming air? I guess you could put a heating element from a blow dryer in there, but it seems like a lot of work. As intake speed would increase, intake air temp would decrease because of less contact to the heating element, and then you would be at less than optimal temperature. You would also, then have to vary the injected water temperature. Other losses would be seen in the pumping force required to force the exaust gases out.
And, why would the intake open before tdc, because then it would just get pushed back out when it got to tdc. You'd think they'd want to open it after tdc to get an even greater vacuum pressure.

heating the air would be easy,, the engine is always rejecting heat to the coolant so there would be a air to water, and then a water to coolant exhanger to heat the air..

although im very confused about the reasons listed to increase intake charge temperature.

but, the reason why you would want to do that

'Negative pressure supercharging' sounds an awful lot like just plain ol ramcharging/pulse tuning, but done really well to really kick up the volumetric efficiency of the thing.

Wow are they legitimately trying to sell this stuff? When I first saw it I thought it was a joke sight like this one KaleCo

Dude, that site is hilarious! The O-pipe, provides 100% backpressure on ALL ENGINES! lol!
You bring up a good point, though. Do you see how they claim "violent acceleration" and "extremely violent acceleration?" Number one, who the fuck says that? And number two, extremely violent acceleration from a towing vehicle? So....like the acceleration of a top fuel dragster? That's extremely violent. Hey, buy this kit and you'll do 0-Fucktard in 3 seconds!!!
Sorry for the profanity.

Edit: I don't think I got across what I was trying to say. I'll combine my two posts into a more poinient, less jockular statement. I think that thier product would work very well in a controlled environment, and in theory (except for the valve timing issue I addressed earlier). However, I believe that there are too many uncontrollable variables in the environment for this to be a reliable (or reliably provide a lot of power) system. For example; on Monday, it was 76 degrees. On Wednesday, it was 28 degrees. You would have needed to fush out the system and put antifreeze in there. But, then the temperature warmed up again, so the system would be at less than optimum. Even just differences between night and day would have a large affect in some areas.

This message has been edited. Last edited by: absolutepressure,

lol... I love the fact that instead of dyno numbers, they say 'it beat a subaru WRX'

I'm more inclined to beleive beating a Subaru than whatever dyno numbers they would put up.

I love the page on negative pressure is as powerful as postive pressure. They start with a +15psi baseline and call that atmospheric pressure. Then they say -8 psi in the same paragraph reference from 15+ as a change of -23psi...last time I knew you can't have negative absolute pressure, so no negative pressure is not as powerful, especially negative pressure you cannot acheive.

AEM sticker + Tein sticker + DC Sports sticker + tickets to Formula D event = -23psi absolute manifold pressure.

not to rip on drifters... but you know the crowd.

- B

this is some funny crap....just made my day

wonder if they sell a sticker pack for the stage 8 kit and an increased 50 hp

Maybe while they've got the '07 motor cracked open I'll put a few stickers on the piston tops.

I'll make sure to get them from a thermal coating company.

Hey, it made my saturn dyno over 125 horses guys. C'mon, that's at LEAST worth something, an extra 1 hp.

quote:

Originally posted by BeaverGuy:
Wow are they legitimately trying to sell this stuff? When I first saw it I thought it was a joke sight like this one KaleCo

Cross drilled brake lines :P

Ok, so assuming you have an engine generating 40 percent more power (use a 200 kW baseline and 100 percent efficiencies) and 280 kW of heat to expel, lets see what that means for the cooling system (in a very general sense)... 280kW=mdot * cp * delta T... use 5gpm to determine your mdot, dumdedum, you get a delta T of about 210 degrees Celsius... I sure as hell wouldn't want that kind of temperature drop across my engine! Maybe 200 but come on 210 thats rediculous! Oh wait, I forgot some heat is used to heat the incoming air... so prob 20kW used for that, there may be hope! Only 260kW to cool now.. damn I was hopeful, still 195 degree drop, hmmm... I think we be cracking some blocks soon.

hahaha, that kaleco site was awesome!

btw, i was wondering if there was any merit to making headers and an intake system and adjusting valve timing and a few other little things like they recommend on a normal n/a car(i wouldnt want to switch to a cold running motor though).

I'm eyeballin those adjustable powerbands....my truck needs some more low end.

I just put some long tube Pacesetter headers on my truck, gas milage and horsepower went up...maybe I should put a ball valve in each primary to limit there flow and get some negative supercharging, heck maybe even a few blow off valves on the headers too?