First off the manifolds and exhaust system had to be designed, manufactures, and installed, tested and tweeked which required a bit more design and manufacture. Replaced all brakes with Brembo GT. Not as simple as it sounds. Brenbo sent the wrong lines, and the front calipers rubbed against the wheels. We had to get new lines and spacers for the front wheels. The calipers themselves were powdercoated in yellow, then had to be refinished because the aforentioned interference scratched them. Installed H&R springs, and new air fiters. Replaced sound system, including dash and door speakers. Replaced seats with Sparco Monza which were then recovered in matching tan leather with daytona trim, see previously posted photos. Replaced all interior trim with carbon fiber. Replaced steering wheel with unit from Challenge Stradale, including airbag. We are still working on carbon vents to replace the air vents in the dash, which is proving to be very difficult. On top of that, we arn into a problem with the Ebrake, and had to replace part of the rear wheel understructure witch held it in place. Took awhile because we tried to fix the existing part, but fix would not hold. Well, you asked.
Sounds good dude I tell ya what if changing my seats and dash will give me another 55 BHP then i will have a pair of seats please
I have looked over just about everything in the 355 and the only thing I can assume is done to it would be some sort of aggressive cam and tune. Perhaps this is an early press car that was "juiced up" from the factory. The actual number cant be used for comparison against any other F355 unless it was on the same dyno. The reason it raised my attention is the car put out more power then just about every 360 we put on the same dyno. If I knew the secret as to why this car is so powerful, believe me I would be manufacturing the part right now. At the end of the day all we have are assumptions and theories to work with and could argue about it forever. I will start a new thread when we have all the media ready.
Well that just may be it then, it must have reworked internals like cams. I know these cars exist becourse Michael Shumaker had a 355 with factory fitted cams and could rev round to 10,000RPM. What is the RPM on 355nuts?? May be if this point of importance was raised months ago then we would have understood the point. It supprises me that s a specialist Harmonyautosport it would have occured to you earlyer to have put these views across when the heat was starting to rise. You also said today that even if a 355 knocked out 450bhp that you would not care. You what, you might be the only one in the world who would not I notice you have a 550 Maranello, lets say that some one posted that there 550 had 670 BHP just by adding an exhaust system......i bet as an owner you would care then and want to know "how the hell"
Ok reality check time! 355nut's car has more Hp than a stock 355 for whatever reason even in consideration of the fact that different dynos will yield different results on the same car under the same conditions (at least that's what they say). If this is true then the whole 363 RWHp issue is off the table since none of us can hope to achieve this because we don't have what his car has. Moreover, no one knows what it is his car has so it cannot be duplicated. 355nut has guessed at the reason, but it is still guesswork. Now Harmonyguys verify this. So, let's return to the argument. What can we do to a standard 1995 355 that will give us the best performance increase, what is the increase we can reasonably expect and how much is it going to cost us? We don't really care about the seats, brakes and all that superfluous stuff so let's leave that out. I appreciate the work done to the car as a Ferraristi but it is not going to get us 363 RWHp. I am getting the feeling that this thread is a 355nut-specific thread and has little context to us or what we can expect. I am also sure the Harmonyguys know that making claims of gains that cannot be proved is not going to get them sales. The bottom line for me is that regardless of what data are shown for 355nut's car, I can't use it. I need a better base line car. It is not that I am becoming a doubter; I am just skeptical of this thread's relevance to me.
Come to think of it, it would be in Harmony's best interests to check a few things like cam specs (timing and duration and profile) and compression and ECU details and publish them, as claims for their new exhaust should be based on a known platform. Other manufacturers do this, and it wouldn't be very effective marketing to state that "Power increased from 363 to 390 RWHP, but we don't know what else has been done to this car, nor can we replicate these results for ANYONE" If this engine really is producing this much power, then I am certain it has to be at more than 8000 rpm. Surely they (Harmony and 355bnut) would know this and have said so by now? must have answers.....
LOL, and I thought I was being even tempered! Heh, heh, I guess we got the point across. I do want some basis for shelling out my $$ however. I just remember all those guys who promised 10 hp here and 15 hp there on upgrades to my M3. Heck based on what they claimed that was the highest output M3 on the road! I am much more realistic these days - oh, and cheap too.
There are many good questions above that need to be answered for the sake of credibility by whomever is making these claims: 1. 363RWHP.....where is that dyno graph??? 2. 390RWHP.....is only "estimated" and based on the former....WTF??? 3. "Extensive" interior mods....who cares at this point! Substantiation is all that matters now.
Picked up car from Harmony. The work is impeccable. Their manifolds and Xpipe are the BEST! My car now sounds like a Daytona; the lower end torque is significantly higher, and the engine running temperature is way down. I took the car out for a very quick 20mile run, and was able to literally put my hand on the engine and leave it there. The impact of replacing the regular exhaust and removing the upper portion, has huge (POSITIVE) implications on the running life and wear of the engine and especially parts like valve guides. If you are a committed 355nut like myself, run, do not walk, to this system upgrade.
I believe Harmony already posted the 363rwh dyno chart. There has not been a follow on test. Anyway, not to detract from your need to see dyno results, for me it's not about dyno charts. It's about the overall driving experience. What I am reporting as the owner and driver of the car are the results of a system that IMO cures many of the 355's ills, ie, low end torque and excessive engine temperatures.
That 363 dyno chart did not meet positive concensus here on this thread...... How about pics of the system in your car with you smiling next to it??
Yea i will settle for that **** the dyno its old now anyways pictures please dude...............and then one of ya girlfriend in a G-string by the ferrari
Frankly what is concensus or not on this or any other thread thread really doesn't concern me. However, I will most definetetly post photos of everything, by the end of the week, when I get back home.
Unfortunately with all the hype 355nut generated on this thread, it may or may not be something worth seeing.... If someone comes on here and makes claims about huge HP increases..... Now I will go out on a thin limb to say this but "frankly" there may be some people on this forum who would like to see honest evidence of those claims.... before they "run" and purchase said components....just a thought.
Well i would for one but then again i thought 355nut was given a "get out" clause a few posts back. I would have taken it personaly
What are we kids? As has been attested to before, it was Harmony's test and claim not mine. It was you and "gothspeed" that have your shorts in knots and have made a "cause celebre" out of this, as you have chosen to doubt the claim. The horsepower claim made by Harmony has been backed up by the chart posted. If you want to believe that the chart is bogus, then do so, its no sweat off my brow. I am reporting what I have done, as an owner, that has proven to be more than highly satisfactory. The only way I can prove it is to have you drive my car. No chart will reflect the difference the Harmony system makes to the driveability, feel, sound and smell of the car, period. The horsepower gains are an added bonus. I am now completely awed by MY CAR! Do you feel the same about yours?
By the level of frustaration exuded by your response, it be can deduced that your behavior is (to put it in your term) "childlike". To simply state that "gothspeed" is responsible for the "cause celebre" is simply ignoring or mistaking obvious facts. No one (including myself) is asking anything unreasonable from anyone, (including you) pertinent to the claims that were made in this thread. If my memory is serving me, it was you who started this thread. That being said, I am happy that your car smells and feels good..... but can it beat an NSX???
It's obvious that you don't bother to read anything but what you choose to. I stated that it was "you" as in "chaa" and gothspeed. You have asked for a dyno chart, and it was provided! See my previous comment. Pictures will be forthcoming, again, as I stated earlier. What exactly are you asking for? I am trying to give you some real world feedback, but all you do is "rolleyes". I did start this thread to address a number of issues that I have tried to remedy with the car. It focuses on the interior, as well as the need to increase low end power and torque. I simply relayed Harmony's previous post as to what the car dynoed before his parts were installed! It was intended to provide a base line against which to compare, so that you and others could get real information as to what these parts do or do not add to the standard vehicle. Yes, my stock 355 will easily beat an NSX, but frankly who cares! You can "Rolleyes" all you want, but it is the very things I mentioned that really separate Ferraris from the pack. These cars have never been purely about outright acceleration or speed. Since the 80's and with very few exceptions Ferraris by and large have not been the fastest accelerating. The essesnce of a 355 is its --oh never mind -its not like you really want to read this anyway!!
