Well written Vance....!
Steve W
Seattle
'05 Grand Prix White
Steve W
Seattle
'05 Grand Prix White
I wondered if thisVancehu said:.......Mr. Uehera would have been happy with the performance result of the HSC - if it was going to be built two years ago, but it was a good thing that they didn't, because the result would have ended like the original NSX, which will not fare well with the current competitors, and a V6 will not be welcome by the “press.” The introduction of the F430 proved his point. “The boss scrapped the HSC because he wanted more! Because it wasn't “stunning enough. The Original NSX was intended to compete with Porsche 911, Ferrari 328/348. However, after 15 years, 911 have surpassed the NSX in many areas, and Ferrari F430 is truly ahead of the NSX in almost every way; therefore, it's time to reset the standard.”...............N/A Porsche 911 is no longer a targeted competitor, because the auto press has always prejudiced the V6 in the NSX, but somehow never bash 911's flat 6! F430 and Gallardo will be the main target, and perhaps those higher models such as Porsche GT and McLaren MB SLR Vision, because if you think about it, the performance between the F430 and SLR Vision is not too far apart, other than the top speed. “In order to compete with these cars, the HP rating will have to be over 500, and we have enough times to work out the bugs on the V10.” By the time the Neo NSX is ready for production, 500ps will be common between most of the manufactures.....................Uehera jokingly mentioned, “If the next generation NSX should last another 15 years production cycle. The car has to be a technological wonder; however, still allows major upgrades in order to compete with the future replacement of F430 and Gallardo.” ............ During the design process of the original NSX, exotics such as 328/348 and 911 all had “3 liter class” engines, because it was the standard in an Exotic (small block with high PS rating); however, the approach has changed through time. The only way to get more PS is to build bigger engines. Ferrari for example, redesigned the entire chassis on the 308/328 replacements to allowed bigger engines to be fitted. From 348 and on, the reversal of trunk and radiator location was the evident of this new approach. This method also shifted the weight distribution more to the rear. Unfortunately, the NSX was originally designed to meet the “3 liter class as well as the gentleman's rule of 280ps for the domestic market; also under the consideration was the domestic market taxation on engine size greater than 3.0 liter, which was much higher; those rules set gave the design team the base blueprint for the NA1 NSX.” It was a conservative move but left no room for expansion. However, the original package was ideal in a sense of performance during that time period, and the method of Carbon Reinforced Metal liner allowed us to temporary step up in the HP game............Since a “Large” V10 is the desired power plant, in order to offset the weight of the engine, construction Materials such as Aluminum and CF is a must - If the desire target weight is going to be met; the use of titanium is under consideration. It will help to meet the promised word of “break through.” However, the cost of manufacturing of titanium will be a major issue, because it is extremely difficult to work with. Even though the cost is not quite an issue, we will make a logical decision. “Same thing happen when we wanted an all aluminum chassis, and the cost of the manufacturing was enormous, but we did it anyway. We are considering how to implement titanium parts other than just the connecting rod.” ...............As for the SH-AWD, it is under consideration, but most likely be scrap due to the weight gain, and Mr. Uehera favors MR platform only - But may offer SH-AWD as an option if the market desires it..................As for the cost for the car - Honda will strategically place the car in the proper tier, just like the original NSX, little higher than standard 911, but lower than a Ferrari. Here is my interpretation from reading the article, a Ferrari F430 and Gallardo beater at Porsche Turbo price. After all, Honda does hope to sell more “New” NSX than the out going model - at a shorter time frame. However, they cannot predict the future, so we'll have to wait and see if the world economy can support this car, or any other car in this price tier…. The original approach of 25 cars a day and 6000 per year will not be part of the plan, because the goal wasn't realistic. After all, the purpose for the existence of NSX is not to make money, but to showcase what Honda can do. NSX is matter of company Pride - R&D cost will eventually filter down to other production cars....
Vancehu said:I'm sure I have offended some people, but guess what, Honda didn't care about what people were saying when they built the NSX, all they know is an automotive history was made, and only the significant players such as Porsche and Ferrari will react to their creation. It's the satisfaction of knowing who made the best car that count, not how many sold.
Vancehu said:I see bunch of Honda haters just want to stir things up on S2k/NSX Forums, please show some manner so the legit members of these forums can actually have some intellectual conversations/posts. If you are Corvette/Viper lovers who also enjoy legit chats with Honda owners, of course you are welcome to exchange “intelligent” thoughts.
Vancehu said:I'm sure I have offended some people, but guess what, Honda didn't care about what people were saying when they built the NSX, all they know is an automotive history was made, and only the significant players such as Porsche and Ferrari will react to their creation. It's the satisfaction of knowing who made the best car that count, not how many sold.
Vancehu said:I have to agree with you on the reliablility of the Domestic V10's, but guess what? They are OHV, low out put engine, not high output DOHC engine.
Vancehu said:Unfortunately, people like to argue, and I'm up for that, but please get the fact straight. Every auto engineers on this planet knows about the challenge regarding issues with DOHC V10, that is why no mass produced DOHC V10 were selected for production car untill Gallardo.
Vancehu said:What Uehera said in the interview only confirmed what I heard back in 1988, when Honda introduced the prototype V10 F1 Engine, both Renult and Honda express the concern of amount of vibration the engine have created during developement process.
Vancehu said:As for the reliablity of the Gallardo and BMW, I haven't seen one with that kind of miles on it, so the concern by Uehera was most likely from engineering point of view.
Vancehu said:THERE IS A GOOD REASON WHY HONDA , BMW, AUDI, AND ANY OTHER NONE US AUTO MANUFACTURES WOULDN'T BUILD OHV ENGINES.... I do however, hope that GM, Ford, Dodge can built car with 8 OHV plus liter and only 550 hp will last... at least 100k miles... Do you really own a NSX?
Vancehu said:Well, nice try, I challenge you to toss me more of your skeptism and your uneducated BS. I'm sure they will be off the subject like your last post! ? Obviously your OHV V10 Engines was doing the thinking for you... hahaha. .
Vancehu said:By the way, what does a boat engine have to do with anything .
Vancehu said:Just to let you know, it took me 4 hours to translate the article, and I was quite confident with the accuracy before I posted it .
Vitellius said:You are completely wrong here. I’m not saying this, the SAE Internal Combustion Engine text book in front of me says you’re wrong.
Valve configuration ie. OHV or OHC have absolutely nothing to do with the balance of an engine and neither does its power output.
Balance is a function of two things and two things alone: configuration (number of cylinders, firing order, V-angle…) and RPM’s. NOT power output or what type of valve train it uses (cam, timing etc. are not mentioned for obvious reasons).
BTW the Ford V10 is question is over head cam, not over head valve like the Viper V10.
If you are still not convinced your beliefs are incorrect, I will be more than happy to scan these pages from my SAE text book and post them for you.
Are you actually an automotive engineer? If you truly are than I suggest you go back to school.
You are misunderstanding the relevancy. This example is simply not applicable at all. You cannot compare F1 engines to production engines.
An F1 is engineered to only last for one race. This is necessary because engineers specifically aim to minimize the weight in the rotating assembly in order to maximize RPM’s available to develop the most power possible.
Since these engines are designed to operate on the very edge of failure, vibration is a VERY critical concern particularly at the incredible RPM’s they operate at.
They’re actually quite smooth, relatively speaking of course.
For example the on-centre Buick V6’s from the 1970’s operated with much more vibration and you can still find strong running examples with 150 000 miles plus.
I don’t at all believe that Uehera actually said this, he was obviously misquoted by the interviewer.
Can you rephrase that, you’re not being very clear.
The problem is that you read an obviously very factually flawed article and assume it’s completely factual.
This would not be the first time I’ve seen an article where a journalist with no engineering degree conducts an interview with an engineer, understand perhaps 10% of what was said, and then proceeds to summarize a 2-hour interview into only an article few paragraph with disastrous results.
It’s a virtually stock Viper V10.
Your translation was fine, but the competence of the writer is surely in question since it’s full of blatantly factually incorrect content.
White92 said:So you're saying you disagree?
effer said:Hi Vitellius, so we have the chance to exchange with an engineer ( perhaps automotive engineer ? )
If so what do you think about creating a V8 based on two S2K engine?
What do you think also about quasi turbine engine?
Regards,
Effer
Vancehu said:You guys, I'm having my employees scan some of the pages since I don't have a scanner. The main article is based on an insert; however, there were other section out side the insert in the magazine contained information on the NSX. I asked him to scan the last few pages so you guys can at least get a taste of the article. I also have dial up (yeah yeah, I'm a dinosor), it will probably take a lot of time to up load just few pages of Jpgs. So be patient. William stop by my shop the other day and check out the insert, so he can at least validate the existance of the article.
Vitellius said:No I'm not an engineer, not yet at least, in 2 years I'll have a nuclear engineering degree. I just pick up text books for other non-related engineering courses that I'm also interested in to read on my own time.
I recall reading an interview with the actual Honda CEO where he actually said that they intent to produce a V8 (I think he said S2000 based) and a V10 as well. Though he was mum on what these two engine would go into.
Vancehu said:Here is an interesting thought... and after owning a 01 S2k, I believe the story. The N American market is the only place with 2.2 S2k, rest of the world is still on 2.0. I thought in Japan, they would have made it an option to have the 2.2, but they didn't. A friend who is high up in US Nissan NISMO marketing told me that the reason S2k's engine increased in size with lower RPM was due to the abuse by many owners (mod and driving habbit), and Honda was paying a lot for warrentee related repair. The bigger engine with 8g rpm is much more reliable than the old 9g rpm. When I had my S2k, I left everything stock, and I drove it to 9g rpm quite often. Honda had to rebuilt the transmission for me (I believe there was a "update" on that, my old car wouldn't shift into fifth gear), and they also had to replace the lower block. The repair cost Honda over 6 grand. I know couple of friends who bought pre-01 S2ks, they had the same transmission "updated" by Honda, and their repari bills were over 3 grand each. I wonder if anyone had the engine problem I had...
Vance
Spinner said:From what I heard, the rest of the world will now get the 2.2 liter motor...well atleast the Japanese S2k.
Vancehu said:I just check out Honda.co.jp, and Honda.co.uk, they still have the 2.0
Vance
From what I've read, the S2k engine (F20C) is a bridge between the regular vtec engines and i-vtec engines. Why base a new engine on a non-mod friendly engine when the K20 series (RSX) is easier to mod and more gas friendly. Right now, NA RSX's are limited in power due to engine bay restraints (mainly intake manifold that won't let them breathe well above 8k rpms) and a legal header (cat is too far forward to provide room for a good header), however people are getting 230+ whp (approximately 270 bhp) with mild to medium mods (cam, tuned ECU, intake, exhaust, race header). The K20A2 is a square block like the F20C, and has been known to take 9k rpms stock. These engines are producing sub 6 second 0-60 and mid 13 second 1/4 mile times on a FWD vehicle. I think a V8 that combines two K20s could make 500 hp reliably with room for NA mods.effer said:Hi Vitellius, so we have the chance to exchange with an engineer ( perhaps automotive engineer ? )
If so what do you think about creating a V8 based on two S2K engine?
What do you think also about quasi turbine engine?
Regards,
Effer