| Author | Message | ||
| Rexrcr (Rexrcr)
New member Username: Rexrcr Post Number: 7 Registered: 11-2002 |
Does anyone have Dynojet chassis dyno readings from their car to show the reduction of low rpm and increase at higher rpm? As for suspension, if you increase your spring rates, you also must increase the damping rate of the shock, otherwise you risk underdamping the car which is not fun on the track. The suspension is a system, one change affects another piece. If you lower the chassis, corner weighting and aligning a Ferrari takes only about 2-3 hours, no big deal for a dealer with corner weight scales and an alignment platform, or even just a flat floor. Seats: the stock ones weigh in around maybe 100 lbs. Go for Recaro's top line carbon seat. It's pricy but by FAR the most comfortable race seat and most guys can tolerate it for hours, I can. No other race shell-type seat compares for comfort. Try Northstar Motorsport in Barrington, IL outside Chicago. | ||
| Randy (Schatten)
Member Username: Schatten Post Number: 485 Registered: 4-2001 |
I'll vouch for Dave's exhaust and say its got a nice tone to it, but by no means is it too loud. However, I haven't heard it from inside the car, only many miles of spirted hill country driving. | ||
| Rehan (F3606m)
Junior Member Username: F3606m Post Number: 54 Registered: 4-2002 |
Dave you have staright pipes on your 550 how does it sound? Is it too loud??? | ||
| Mark Freeman (Mrpc12)
Junior Member Username: Mrpc12 Post Number: 116 Registered: 11-2001 |
When I was at the shop yesterday and my car was on the lift so they could show me all the parts that need replacing (like motor mounts!) I asked about the Fiorano handling package. I'm told it consists of new coil springs and reprogramming the electronic dampening system. Figure on about $10K. | ||
| Dave (Maranelloman)
Member Username: Maranelloman Post Number: 564 Registered: 1-2002 |
Well, sorry I missed this thread before now... I oppose removing cats on general principle. This may also be illegal in Hong Kong (it is in the US). I installed CarGraphic open-pipe exhausts with the stock center resonator & the cats unchanged, and love it. To me, it does sound like a Daytona, and, yes, low torque is slightly diminished, but wind-out above 4000 RPM is lovely! I imagine that removing the cats & replacing the resonator with a good X pipe would make an AWESOME sound, but just cannot advocate this unless the vehicle is track-only. As for the Fiorano package: I have heard that (a) it is INCREDIBLE on track, and that (b) it is HORRIBLE on the street. I have no experience with it, nor do I know how hard it would be to retrofit. Beware lowering the ride height, however: this action will REQUIRE that you corner balance & realigne the whole car. As for Manu's suggestion about the sport seats, they are great, & light, for the track, but IMO they suck for any trip longer than 30 minutes on the street (this is based on my personal experience in a 550 with them). Manu is right, however: change exhaust & seats, and lose a whole lot of the 550's prodigious weight. | ||
| Randy (Schatten)
Member Username: Schatten Post Number: 447 Registered: 4-2001 |
Dave/Maranelloman... where are you to chime in on this thread? | ||
| Nick Yim (Yimn)
New member Username: Yimn Post Number: 3 Registered: 11-2002 |
Anyone has idea how much it will cost to retro-fit the Fiorance Handling package to the 550. Thanks | ||
| Nick Yim (Yimn)
New member Username: Yimn Post Number: 2 Registered: 11-2002 |
Thanks a lot of your informative reply. I will definitely look into it. Since I use the car quite often, I wonder how "crazy" is the sound from the exhaust. If it is really really loud, it could get annoying sometimes. Also, why leave the rear track alone. I was told by a guy from Dimex (dimex-group.com) in Germany that they have been doing that ever since 550 was introduced and most owners are very happy about it. If you can, please provide a bit info for me. Finally, I generally find the stock spring a bit too soft. I am ordering the Fiorano anti-roll bar but would performance imrove with stiffer spring? Looking forward to your reply. | ||
| Manu Sachdeva (Manu)
Member Username: Manu Post Number: 531 Registered: 2-2002 |
Nick - here's what to do. I have been there with the EXACT same questions for the same car and after MONTHS of searching the following is the best thing to do. Getting the best sound and performance out of the 550 Maranello is a pet-subject for me so if you need any more advice drop me an email. 1. De-cat the car with a set of Tubi Cat-replacement pipes - this will yield the biggest decrease in backpressure and increase in power - very inexpensively - the latest batch are fully OBDII compliant. 2. Do not fit the "stock" Tubi exhaust - fit the Tubi PIPE-ONLY exhaust system. 3. Add hi-flow Air Filters. You will lose a MARGINAL amount of torque low down - it's true but you will gain a realistic 25hp at the very top end and that's not BULLSH!T. The reduction in backpressure is immense so the rush to the redline from the midrange on will be AMAZING. The sound will be BEYOND WORDS!!! I mean it - AWESOME - Like a Daytona. Moreover the weight loss from chucking these stock items in the bin is VERY serious. Don't add sport springs - retro fit the Fiorano Handling Pack instead. Don't play around with the rear track of the car. Chuck away the normal seats (which are ridiculously heavy with all the motors required to move them around) - fit some carbon fibre sport seats. Cat pipes, and pipe-only exhaust:   | ||
| Ulf Modig (Ulf308qv)
New member Username: Ulf308qv Post Number: 45 Registered: 3-2001 |
It is common that a "free flowing" exhaust system will reduce the bottom end torque compared to stock. You will however gain torque & horsepower in the upper rpm's. | ||
| Rehan (F3606m)
New member Username: F3606m Post Number: 48 Registered: 4-2002 |
I never knew a TUBI would reduce power on a 550 if i anything i thought it would increase it? | ||
| JRV (Jrvall)
Junior Member Username: Jrvall Post Number: 76 Registered: 11-2002 |
Are you driving with the traction control off? Hard to believe the bottom end torque reduced enough to feel? When you lay the hammer down on 550's the TC modulates the power until there is no chance of wheel spin, I've had the TC hold back till 3K rpm before. Then you feel the surge. Are you aware of the TSB on the Mag Wheels ? If you have the magnesium wheels you might want to forgo spacers and step up to new wider wheels. | ||
| Nick Yim (Yimn)
New member Username: Yimn Post Number: 1 Registered: 11-2002 |
Want to widen the track with Spacer,lower the car with sport spring and improve sound by changing the exhaust. Any suggestion please??? p.s. I tried the TUBI but did not like it at all as it reduces low RPM torque a lot. Also the stock exhaust is quite complicated (with valve and stuff). So is there any system (Koenig etc) that people have tried??? |