is that yours? if so what engine modifications have you made, if any? i was a bit disappointed when the did the revision to the NSX as they didnt do much to give it a bit more grunt, as they are a bit sluggish when compared to what else you can get for the money
i can say that they definitely do score high in drivability but something like a BMW M3 outdrives it and out-grunts it, for less cash as do most porsches, although for more cash usually although it is a sexy looker though, have to say that much for it
I'm not the owner of the car I run the site and help the owner of the car out .... if you go to the site has a full spec sheet on the car .... But it has a built motor .. custom single turbo ..... 508hp at the wheels .......
not stock then when i (briefly) took a spin in one, it just didnt do much for me when the right foot went down, but im sure 508bhp would sort that out yum
I watched the videos, that is one quick Honda NSX, I absolutly love that boost readout/computer in the car, very nice. I did notice however the wheels seem to chirp a fair bit when the car is appling a lot of power and the gear is changed. Have you got a full list of mods done to the car?
here is the link to the spec sheet http://www.pansx.com/spec.htm it is really hard to keep the car stright going down the track because of the flew and how much power the car does have .....
That would be the sound of the blow off valve releaving the pressure on the cold side. This is essential for high boost applications as while shifting gears, you release the 'go pedal' which shuts the throttle body closed, which still leaves the turbo pushing quite a bit of air against it. Even if for a brief moment, you need to bleed that excess pressure off. Otherwise you get what is called "compressor surge". Without a BOV on the intake (cold) side, when you apply the throttle again, the built up pressure behind the butterfly will release and rush into the engine. This is usually more than the engine can handle. Either that or you'll blow off a charge pipe, which would be a much cheaper underhood explosion. Besides that, a good BOV (in conjunction with a good wastegate valve) will aid in throttle response and boost build up. Another way to help is to route the output of the BOV back into the system so as to keep a constant pressure for when you are back on the gas. This would be called a recirculating system, which is the opposite of the aforementioned NSX which relieves its excess straight to the atmosphere (with a rather satisfying sound I might add). I may be wrong, but I believe that most, if not all, new turbo cars are based on a recirculating system. This explanation is pretty good for most new or modern turbo cars, there are other ways to control boost that have been done by different auto makers. Sorry about the long lesson and i'm sure I made a few mistakes or bent the facts a bit, but hey, it's after 3 a.m. and I could use a little sleep. Lates, Ryan B. p.s.- please excuse any spelling errors, i'm too tired to go back and spell check myself. Good night!
Thanks for the detalied post, I can hear the BOV and the classic tchsss sound but along side that I am shure I heard screech sound as well, that sounds just like tires chirping under extremely hard acceleration. I am probebly wrong.
ok you are some what right but in the video it is not the BOV it is the waste gate that is making the sound the bov has a wwwwuuuuuusssshhhhh to it and we have changed the waste gate and the car does not make the sounds as loud ..... but your right about most everything esle
I will have to disagree with you, I believe you have it backwards. Blow off valves are for bleeding off pressure on the compressor (cold) side, that is what produces the 'wuuussshhh' sound. Wastegates come in two varieties: internal and external. The internal ones are a part of the turbine (or exhaust or hot) side housing and external ones are usually connected to the exhaust manifold at either the collector or one of the primaries. Either of the type have the same job, to control the boost levels by bleeding off the exhaust before it can spin the turbine. The internal type dumps the exhaust right into the down pipe at the housing. The external type can be routed differently; they are either dumped back into the exhaust somewhere in the down pipe (like in the case of most street going cars) or vented to the atmosphere (as with most import race and drag cars, even notice a smaller pipe next to the exhaust pipe on some import drag cars?). For street cars, routing it back into the exhaust is more common. I'm not trying to be 'Mr. KnowItAll', but if there is one thing I know more than computers, are cars. I just don't like it when people may be misinformed and i'd rather have people know the correct information. I try not to make myself out to be smarter than anyone else, but if I know something or can correct something, I jump on the chance to educate. Don't Hate, Educate! Lates, Ryan B.
Sorry to say the cherp in the video is the waste gate NOT the BOV .... When I the car you can hear what side the sound is coming from and with the BOV right in back of my head i know the siunds it makes and when riding shot gun you hear the cherp on the other side of the car where the waste gate is localed .... the cherp in the video is 100% waste gate and the bov you can not hear in the video ...... We have changed the waste to a tial and the cherp is not there .... I know what you are say like the greddy BOV make a cherp like this but in this case it is not the BOV and the BOV does not make any sound when reving the motor only under load does the car cherp and that is from the waste gate ... Note the opening under the top wear the spring is on the waste gate ... that is where the cherp comes from Now Note the Tial waste gate does not have this and does not make the cherp I hope you can now see what i'm talking about I'm now hating just giving you back ground in the topic witch we are talking about and if the photos do not help you see it .. then tell me how i can better help you and I will do so ....
