| Author | Message | ||
| allan fiedler (Allanlambo)
Member Username: Allanlambo Post Number: 526 Registered: 6-2002 |
Trust me, there is a big difference in power. It has transformed the car into a totally different machine. It was gutless below 4500 rpm, and now, jump on it at 3000rpm, and it feels as it did before jumping on it at 4500 rpm.For the money, it was well worth it. | ||
| P. Thomas (Ferrari_fanatic)
Member Username: Ferrari_fanatic Post Number: 256 Registered: 4-2003 |
No it is alright. The hub is female threads. The lugs are male thread. They are all there. | ||
| Patrick Denonville (Arizonaguy)
Junior Member Username: Arizonaguy Post Number: 91 Registered: 4-2003 |
Um Allan,where are the rest of your wheel studs?They look nice, wish I could see them in person. | ||
| Ben Cannon (Artherd)
Member Username: Artherd Post Number: 325 Registered: 6-2002 |
I like the headers, not too fond of the airboxes though. IMHO, little tweaks do little for power. Gotta tear into the motor, add displacement or forced induction, OR LOOSE WEIGHT! to really change the car. Biggest difference between F355 and F355C is weight, not motor (though there's ~30 more hp, that's less than 10% difference, and you can't hardly even feel a 10% difference if you're looking for it.) I'd love to do an F355 with a 550 or Enzo's motor. Best! Ben. | ||
| Hubert Otlik (Hugh)
Member Username: Hugh Post Number: 840 Registered: 1-2002 |
Jim: i'll tell you. jewlery : leather braclet brought back from Venice townhome: 1300 sq ft; kitchen, laundy room; 2 bedrooms; 2.5 baths; and every modification on my car has a practical purpose. | ||
| Jim Schad (Jim_schad)
Intermediate Member Username: Jim_schad Post Number: 1293 Registered: 7-2002 |
I think its funny how you guys insult and argue with each other over 1 hp here and there. If you are so practical tell us about the size of your house you live it, the jewelry you wear or the toys you have. Do they all make practical sense? Do they benefit you or just make you feel better? | ||
| allan fiedler (Allanlambo)
Member Username: Allanlambo Post Number: 517 Registered: 6-2002 |
They will absolutely make more power. | ||
| Hubert Otlik (Hugh)
Member Username: Hugh Post Number: 838 Registered: 1-2002 |
allan: with all due respect, while your polished/chrome airboxes may look nice, they're not going to give you any power; I'm certain the temps inside those boxes v. your stock box, or even the gruppe m box/intake arms will be significantly higher; higher intake temps = less power. Be sure to dyno these new pieces v. your old ones. | ||
| Taek-Ho Kwon (Stickanddice)
Member Username: Stickanddice Post Number: 462 Registered: 11-2002 |
Very nice setup Rob! I love the look of carbon fiber. Cheers | ||
| Robert Ziino (F355bob)
Junior Member Username: F355bob Post Number: 66 Registered: 8-2002 |
The GruppeM air box does make a difference. It has much more midrange torque and throttle response. On BMW M3's it adds 15rwhp. You can email them and they will send a dyno sheet to you that was done by Bob Watson Engineering in England- a pretty good high performance shop working on high end exotics. Show a much better torque curve than stock and that is what a F355 needs--more midrange torque and not necessarily more HP. | ||
| Craig Dewey (Craigfl)
Member Username: Craigfl Post Number: 596 Registered: 1-2001 |
"But doesn�t add additional hp also torque?" Not necessarily, if the HP peaks at a higher RPM. For example, 300HP @ 6000RPM is the same torque as 350HP @ 7000RPM. Assuming the torque peak is at the HP peak, HP is increase but torque is not. Most cars have a HP peak at a higher RPM than the torque peak so this may not always be true... | ||
| James Glickenhaus (Napolis)
Intermediate Member Username: Napolis Post Number: 1390 Registered: 10-2002 |
Mitch Does this mean that these headers are incorrectly designed? Best Jim | ||
| Jens Haller (Jh280774)
Member Username: Jh280774 Post Number: 674 Registered: 9-2001 |
Mitch, But doesn�t add additional hp also torque? If I tune up an engine I also should get more torque, shouldn�t I? Enlight me please!  Allan, You lucky lad! Guess I keep the 348tb for quite some while since it�s my first Ferrari! Rather add another one then selling my 348. Thinking of building up a Ferrari V8 collection although this might be quite uncommon for most "Only V12 Ferraris are real Ferraris" fanatics! Con saluti cordialissimi, Jens Haller | ||
| Mitch Alsup (Mitch_alsup)
Member Username: Mitch_alsup Post Number: 675 Registered: 4-2002 |
"I hope that a 348 trannie is strong enough to handle an additional 50hp" It is TQ that breaks transmissions, not HP! HP burns things up. | ||
| allan fiedler (Allanlambo)
Member Username: Allanlambo Post Number: 515 Registered: 6-2002 |
Your right Jens, i just never end up keeping a car long enough to consider what might happen in a few years. I dont think 50-60hp should make a diffence in any shape or form though. If it does than Ferrari needs to build in wider tolerances. | ||
| Mitch Alsup (Mitch_alsup)
Member Username: Mitch_alsup Post Number: 674 Registered: 4-2002 |
Time for a header technology question: Why do Ferrari Headers not have a collector attached? The collector is what causes a set of carefully bent tubes to extract power from the wave energy in the exhaust pulses. The header tubes only carry the pulses (and allow low resistance to flow). Background: When an exhaust valve opens, a high pressure pulse travels down the header tube and arrives at the collector, a low pressure pulse is returned back up the header pipe while the high pressure pulse continues to travel across the collector. When this low pressure pulse arrives back at the exhaust valve during valve overlap, the low pressure pulls fresh mixture into the cylinder even before the piston starts downward. When the high pressure pulse arrives at the other end of the collector, a high pressure wave is sent back across the collector and up the header tube. If the length of the collector is right, this high pressure pulse arrives just before the exhaust valve closes, and pushes the fresh mixture pulled into the exhaust by the previous low pressure pulse back into the cylinder. Both high pressure and low pressure waves are necessary to achieve best power. On the F355; Can both of the exhaust pipes after the header (one goes to the muffler, the other gors towards the valve that opens at 3500 RPMs) operate 'like' the collector? That is, is the combined volume of the 'straight to the muffler' pipe, and the pipe to the 'joining valve' be treated as a collector. If so, does this set of piping have one or more than one timing paths? Are the high pressure exhaust pulses from the 'other' bank routed to 'this' bank and supply the necessary high pressure pulse prior to exhaust valve closing? | ||
| Jens Haller (Jh280774)
Member Username: Jh280774 Post Number: 671 Registered: 9-2001 |
Allan, Actually there are some board members who have done all these things to their 348 and claim around 350-360 hp after dynoing the car. Nothing happened to their transmission, clutches etc. That doesn�t mean that the wear isn�t going to cause defects in some years... You never know and it�s kind of russian roulette. Still undecided whether it�s worth to take the risk for some additional 20hp... Con saluti cordialissimi, Jens Haller | ||
| allan fiedler (Allanlambo)
Member Username: Allanlambo Post Number: 512 Registered: 6-2002 |
Jens, my 348 only had test pipes and a K+N filter, and it made a big difference. I imagine yours would be much better. I hope that a 348 trannie is strong enough to handle an additional 50hp. If not that would be very disappointing in a Ferrari. My 348 trannie felt fine, plus the car had almost 80,000 miles on it. | ||
| allan fiedler (Allanlambo)
Member Username: Allanlambo Post Number: 511 Registered: 6-2002 |
Taek, im sure the Gruppe M makes a difference. The original factory boxes look like they let a large volume of air through, but when you take them appart, you see that the inlet is actually crimped significantly restricting air flow. All the new airboxes do is delete that restriction. I was able to drive around with my car with the stock airboxes in place, but with the other mods, and once the new boxes were put on, it felt more responsive. | ||
| Jens Haller (Jh280774)
Member Username: Jh280774 Post Number: 670 Registered: 9-2001 |
Allan, I already put some Tubi test pipes, a Tubi sport exhaust and some K&N air filters in! Did that all at once when my transmission blew up. Man, this car really rocks now compared to stock setup. Thinking of installing some thermally insulated Tubi headers and perhaps then do an individual chip tuning. After adding around 30hp with my current setup I hope I can add another 20hp with headers and chips. Heard that might be possible. What do you think? 350hp in a 348 wouldn�t be bad after all although I am a bit concerned about the additional stress for transmission and clutch! Con saluti cordialissimi, Jens Haller | ||
| allan fiedler (Allanlambo)
Member Username: Allanlambo Post Number: 510 Registered: 6-2002 |
Good point John, also, if anyone didnt like the airboxes, they can be removed and replaced with the factory boxes in about 5 minutes. Also, i dont know if i mentioned, but this whole setup also lost a substantial amount of weight, my guess is atleast 50 pds. | ||
| Taek-Ho Kwon (Stickanddice)
Member Username: Stickanddice Post Number: 459 Registered: 11-2002 |
3500 for the carbon box? That's a little ridiculous. Couldn't you have a carbon fabricator build one for you for cheaper? Geez. Are there any performance gains from the Gruppe M setup that might justify the price? Cheers | ||
| allan fiedler (Allanlambo)
Member Username: Allanlambo Post Number: 509 Registered: 6-2002 |
Frankie, i think a bobble head doll would look much better in a old antiquated Boxer. | ||
| John_Miles (John_miles)
Junior Member Username: John_miles Post Number: 74 Registered: 7-2001 |
I'd buy his car in a minute, all other things being equal. F355 headers seem to develop cracks fairly often. Assuming they're constructed right, these should be more reliable than the OEM headers, and probably less expensive as well. Don't have a strong opinion either way re: the air boxes. They don't seem any more or less sacrilegious than putting a Tubi on a 3x8. Like 3x8s (and unlike Boxers), F355s will never be collector cars -- they just made too darned many of them. So there's nothing wrong with trying to improve on the areas where the factory, for whatever reason, chose to cut corners. | ||
| allan fiedler (Allanlambo)
Member Username: Allanlambo Post Number: 507 Registered: 6-2002 |
Jens, i really liked my 348, it was slow, but more of a raw car to drive than the 355. Just have someone fabricate you an airbox, atleast put a K+N filter in it. It made a difference on my 348. | ||
| Frank Parker (Parkerfe)
Intermediate Member Username: Parkerfe Post Number: 2324 Registered: 9-2001 |
Allan, I hope you care about my opinion about the same amount as I care about yours, which is ZIP, nada, zero, nothing, or even less . By the way. a bobble head doll and fuzzy dice will look great on the dash. ha ha | ||
| Jens Haller (Jh280774)
Member Username: Jh280774 Post Number: 669 Registered: 9-2001 |
Allan, That�s exactly what I have heard about the Gruppe M air intakes! The price is indeed a great disadvantage...(and the thing that they do not produce intakes for my little crappy 348  ) Con saluti cordialissimi, Jens Haller | ||
| allan fiedler (Allanlambo)
Member Username: Allanlambo Post Number: 506 Registered: 6-2002 |
Ohhh Frankie got his feelings hurt! Lol. Do you think i care about your opinion? | ||
| allan fiedler (Allanlambo)
Member Username: Allanlambo Post Number: 505 Registered: 6-2002 |
Jens, i have seen both those air box assemblies. I would of prefered the carbon fiber myself, but since the carbon boxes cost roughly 3500.00 and my boxes cost 900.00 i am happy with the finished product. As for future mods, i am undecided on any computer mods, and possibly larger throttle bodies. Those are the only 2 options i see that would be cost effective, becuase if i were to tear into the motor, i'd go twin turbo. For now, im actually satisfied with the performance. | ||
| Frank Parker (Parkerfe)
Intermediate Member Username: Parkerfe Post Number: 2323 Registered: 9-2001 |
Allan, my are we shallow. Because I don't care for your butched up 355, you don't like all Boxers ? I like the 355 in general, in fact I like it much more than the 360. Its just chrome is not what I consider appropriate on an Italian exotic. Further, the fact that you plan to resell the car in a year or so is even more reason not to modify the car. Now you are going to need to find someone with as poor taste as you to sell it to. Good luck. | ||
| Taek-Ho Kwon (Stickanddice)
Member Username: Stickanddice Post Number: 458 Registered: 11-2002 |
Wow that carbon fiber looks nice! But I do like how you can see the tubes on Allan's setup. A mix of the two would be perfect! Cheers | ||
| Jens Haller (Jh280774)
Member Username: Jh280774 Post Number: 668 Registered: 9-2001 |
Allan, What do you think of that? http://www.ferrarichat.com/discus/messages/112/251786.html?1053528108 Nice look, too, but perhaps a bit more understated! Well you are a Lamborghini owner after all. Bling, bling... Just kidding of course! Con saluti cordialissimi, Jens Haller | ||
| Taek-Ho Kwon (Stickanddice)
Member Username: Stickanddice Post Number: 457 Registered: 11-2002 |
Who makes the headers and airbox? Hopefully you're getting power both down low and high up on the rev range. Any other mods you have in store Allan? Cheers | ||
| allan fiedler (Allanlambo)
Member Username: Allanlambo Post Number: 503 Registered: 6-2002 |
Well lets see, why did i do this? Easiest way to answer that, the car was too slow! As for the"Yuck" reply, well, your entitled to your own opinion, just as i would say "Yuck" to an old Boxer of any sorts. The air boxes really do look good though. Everyone that i've showed them to, thought they really looked great. Also, everything can go back to stock. Im not looking to keep the car an original collector car, it will be lucky to last a year with me, and be gone. The car has absolutely no oil leaks. As for performance Art, i havent dynoed the car yet, but by the seat of the pants view, it is a huge difference. Much more responsive, makes power down low, not above 4500rpm like before. Made the car much more enjoyable. | ||
| arthur chambers (Art355)
Intermediate Member Username: Art355 Post Number: 1720 Registered: 6-2001 |
allan: Have you checked to see if you've gained anyting in performance? Art | ||
| "The Don" (Mlemus)
Advanced Member Username: Mlemus Post Number: 4720 Registered: 8-2002 |
Allan, you gonna fix that oil leak? | ||
| Frank Parker (Parkerfe)
Intermediate Member Username: Parkerfe Post Number: 2319 Registered: 9-2001 |
Why would one do that ? YUCK ! | ||
| neal (95spiderneal)
Junior Member Username: 95spiderneal Post Number: 143 Registered: 3-2002 |
nice chrome vs factory but i like red engine in fcar best | ||
| Martin - Cavallino Motors (Miami348ts)
Advanced Member Username: Miami348ts Post Number: 4704 Registered: 5-2001 |
so you got your wife's car and the first thing you do is butcher it up with a custom job????? I like it | ||
| allan fiedler (Allanlambo)
Member Username: Allanlambo Post Number: 502 Registered: 6-2002 |
Here's a few pics of my setup:        |