| Author |
Message |
Paul Sloan (Sloan83qv)
Member
Username: Sloan83qv
Post Number: 499
Registered: 3-2001
| | Posted on Thursday, March 06, 2003 - 9:18 am: | |
I installed it almost two years ago, the scream the gear set makes is like the car is runninng 2 superchargers. |
Rob Schermerhorn (Rexrcr)
Member
Username: Rexrcr
Post Number: 301
Registered: 11-2002
| | Posted on Thursday, March 06, 2003 - 7:27 am: | |
The Quarter Master race clutch is dual disc 7 1/4 inch diameter. That's all you need for 330 HP, which is what we had normally aspirated. |
Rob Schermerhorn (Rexrcr)
Member
Username: Rexrcr
Post Number: 300
Registered: 11-2002
| | Posted on Thursday, March 06, 2003 - 7:25 am: | |
Modena Engineering is the manufacturer for the 308 gearbox parts. I have run this set-up in an SCCA GT2 legal Michelotto 308. I ran both their drop gears with the mag housing and converted the entire 'box to straight-cut gears with dog synchro's. Excellent quality. In 1997 it cost about $5000 for the complete drop gear kit, lots of ratios. I also had Modena Engineering make an F40 drop gear to lower top speed to 176 mph as this was the fastest we'd go at Road America. Frank Capo, +61 (39) 782.4420.
The exchange rate is very favorable to the US from Australia.
I ran a Quarter Master race clutch and flywheel assembly in this car along with their hydraulic release bearing system. Good stuff, race only though. |
Dr Tommy Cosgrove (Vwalfa4re)
Member
Username: Vwalfa4re
Post Number: 672
Registered: 5-2001
| | Posted on Thursday, March 06, 2003 - 6:56 am: | |
Paul, are you sure the whine you are referring to isn't the fuel pump? The injected cars have that unique fuel pump noise |
billy bob (Fatbillybob)
Junior Member
Username: Fatbillybob
Post Number: 214
Registered: 8-2002
| | Posted on Wednesday, March 05, 2003 - 10:50 pm: | |
Someone seeing $ signs with F cars. Last time I looked U.S. Gear or someone like them would make you a gear for less than 400 bucks a gear. You take them the three transfer gears they measure. You tell them waht you want they grind it out. No big deal. Also Tilton has done many 308 clutch Fw set ups. The hot set-up is a 3-4 disc system with about 7inch diameter with FW that is cut out along the mid section to leave a land for the ring gear and metal for the 7" discs. |
Paul Newman (Newman)
Intermediate Member
Username: Newman
Post Number: 1131
Registered: 12-2001
| | Posted on Wednesday, March 05, 2003 - 10:25 pm: | |
On the subject of QV ratios, does anyone have the range of transfer gears ferrari used on the 3x8 cars?
Also, what gears are the source of the familiar gear whine in a 308? Im refering to the lovely sound I hear as I start from a stop and go through the gears. The combo of exhaust note blended with the slight gear noises. Seeing as how the transfer gears are helical cut Im assuming they arent the cause. |
Bill Sebestyen (Bill308)
Member
Username: Bill308
Post Number: 425
Registered: 5-2001
| | Posted on Wednesday, March 05, 2003 - 9:51 pm: | |
Thanks Paul. Have you installed it yet and is gear noise and issue? |
Paul Sloan (Sloan83qv)
Member
Username: Sloan83qv
Post Number: 498
Registered: 3-2001
| | Posted on Wednesday, March 05, 2003 - 8:03 pm: | |
I bought the set off e-bay two years ago, Nick has the ability to source the setup but beware I think it's in the $4000 to $5000 range. It is only worth it if your going to make BIG HP as it is a rather massive setup (Gears and Bearings). The set I bought comes with 3 different gear ratio's. |
BretM (Bretm)
Advanced Member
Username: Bretm
Post Number: 3223
Registered: 2-2001
| | Posted on Wednesday, March 05, 2003 - 5:30 pm: | |
One point though is that the quattrovalvoles are geared lower than the other 308s, and IMO as low as one would want to go for street or race. I would only look into tcase swaps if you were making big HP (400+) and wanted a 180mph top speed. Right now it's setup for 155mph at 7700rpms. At 8500rpms you would barely get over 170mph with stock gearing, and more importantly you're turning a loud (and engine wearing)3300rpms at 65mph. Another thing is that most people are going to make straight cut gear sets for the tcases which whine like a son of a b_tch. If you got normal cut gears I don't really see the point of swapping as they are the same strength still and you can't go much lower. Just my $.02 on QV gearing. If you do want to swap I think Nick makes up a set, there was also a thread in which someone posted a company in Australia that was supposed to make good sets. I'm sure there are places in Italy too that make them. I only comment because I know Paul has a 2valve car, of which Ferrari also felt there was room for lower gearing so he is right. Paul Sloan got the gear set I think you're speaking of off of ebay I think. |
Bill Sebestyen (Bill308)
Member
Username: Bill308
Post Number: 423
Registered: 5-2001
| | Posted on Wednesday, March 05, 2003 - 5:07 pm: | |
Paul,
Who can supply alternate transfer gear ratio's for a 308? About a year ago, an F-chatter won a bid on ebay for a quick change, transfer gear setup. I would like to have had the money at the time, but other repairs were more pressing. Anybody know who made this setup, whether it's still available new, and what the cost might be? |
Dr Tommy Cosgrove (Vwalfa4re)
Member
Username: Vwalfa4re
Post Number: 657
Registered: 5-2001
| | Posted on Wednesday, March 05, 2003 - 3:58 pm: | |
Can you explain a little more? Is it really expensive? |
Paul Newman (Newman)
Intermediate Member
Username: Newman
Post Number: 1128
Registered: 12-2001
| | Posted on Wednesday, March 05, 2003 - 3:36 pm: | |
A transfer gear swap might be to your advantage since you will have them in your hands during the clutch job. Better out of the hole punch with a ratio swap but less top end. |
Dr Tommy Cosgrove (Vwalfa4re)
Member
Username: Vwalfa4re
Post Number: 652
Registered: 5-2001
| | Posted on Wednesday, March 05, 2003 - 3:30 pm: | |
I saw it on Nick's site. I just wanted to talk to someone with first hand experience that wasn't selling it also. |
Dr Tommy Cosgrove (Vwalfa4re)
Member
Username: Vwalfa4re
Post Number: 651
Registered: 5-2001
| | Posted on Wednesday, March 05, 2003 - 3:28 pm: | |
I track it as much as possible. It's mainly a weekend car. I plan on headwork, etc later. I just think it's getting close to needing a new clutch so I thought as long as I'm down there, what else can I do while she is opened up. |
Barney Guzzo (Trinacria)
Junior Member
Username: Trinacria
Post Number: 139
Registered: 8-2002
| | Posted on Wednesday, March 05, 2003 - 2:50 pm: | |
http://www.nicksforzaferrari.com/forzaferrariwebsite1007.htm |
Paul Newman (Newman)
Intermediate Member
Username: Newman
Post Number: 1125
Registered: 12-2001
| | Posted on Wednesday, March 05, 2003 - 2:41 pm: | |
Just curious if you are doing other modifications other than the flywheel. If not, why the flywheel and not cams or transfer gear ratio changes to gain performance. What are the plans for the car, track it? |
Dr Tommy Cosgrove (Vwalfa4re)
Member
Username: Vwalfa4re
Post Number: 649
Registered: 5-2001
| | Posted on Wednesday, March 05, 2003 - 2:12 pm: | |
I am just throwing this thread back on top in case someone new may see it. Still looking for someone with one on his 308. |
Dr Tommy Cosgrove (Vwalfa4re)
Member
Username: Vwalfa4re
Post Number: 626
Registered: 5-2001
| | Posted on Sunday, March 02, 2003 - 9:20 pm: | |
I just checked and Nick sells them with a special clutch package. I wonder if I can keep my stock clutch and go with the flywheel only? |
Bill Sebestyen (Bill308)
Member
Username: Bill308
Post Number: 420
Registered: 5-2001
| | Posted on Sunday, March 02, 2003 - 8:54 pm: | |
I thought Superformance in the UK listed them, but I just checked their site and I only see some repro steel flywheels. I don't know who else might supply them, perhaps Norwood or Tilton? |
Dr Tommy Cosgrove (Vwalfa4re)
Member
Username: Vwalfa4re
Post Number: 623
Registered: 5-2001
| | Posted on Sunday, March 02, 2003 - 8:09 pm: | |
Where can I find such a unit for my 308? I do not want to mess with grinding on my existing flywheel for many reasons. |
Bill Sebestyen (Bill308)
Member
Username: Bill308
Post Number: 418
Registered: 5-2001
| | Posted on Sunday, March 02, 2003 - 7:16 pm: | |
I installed a Tilton aluminum flywheel on my 66 Lotus Elan and was quite pleased with the results. I found the engine revs more freely and the car accelerates faster. Down shifts are also smoother. You do have to be more careful when engaging the clutch as the lightened flywheel will not store as much energy. I find it best to engage the clutch at a standstill carefully and once the car is moving you can really put your foot into it. Theoretically, the lighter flywheel is also kinder on the crank and other internal parts because you don't store as much rotational energy in the flywheel.
Weight isn't the whole story though. Rotational or polar moment of inertia is the important property. Two flywheels having the same mass will act differerently depending upon where the mass is located relative the axis of rotation. It's more important to remove mass near the outside diameter of the flywheel than closer to the axis of rotation. The classic location to remove material is adjacent to the starter ring gear. |
Dr Tommy Cosgrove (Vwalfa4re)
Member
Username: Vwalfa4re
Post Number: 622
Registered: 5-2001
| | Posted on Sunday, March 02, 2003 - 7:05 pm: | |
How long has yours been in Billy? |
billy bob (Fatbillybob)
Junior Member
Username: Fatbillybob
Post Number: 213
Registered: 8-2002
| | Posted on Sunday, March 02, 2003 - 6:53 pm: | |
yes
yes
no |
Paul Newman (Newman)
Intermediate Member
Username: Newman
Post Number: 1120
Registered: 12-2001
| | Posted on Sunday, March 02, 2003 - 6:52 pm: | |
I have heard of lighter 308 flywheels but never installed one. Ive used them in a domestic application and found quicker accelleration to be the result. Less rotating mass for the engine to overcome. It was aluminum with a steel insert for the clutch surface. It had no affect on clutch engagement or feel. |
Dr Tommy Cosgrove (Vwalfa4re)
Member
Username: Vwalfa4re
Post Number: 621
Registered: 5-2001
| | Posted on Sunday, March 02, 2003 - 6:49 pm: | |
Has anyone installed a lighter flywheel in a 308? Does it improve throttle response and if so does it make clutch engagement a bit more difficult from a stop? |