91 Vert... CARBON
Thread Starter
Pro
Joined: Jan 2000
Posts: 510
Likes: 0
From: Prince George BC
91 Vert... CARBON
Hi guys... I have a friend that has a '91 convertible and is in the process of turning it into a race vehicle... strictly for autocross....
He is looking for all and EVERY piece of weight saving items he can find Anyone have any suggestions?..... all would be appreciated! He will stop at NOTHING!
He is looking for all and EVERY piece of weight saving items he can find Anyone have any suggestions?..... all would be appreciated! He will stop at NOTHING!
Race Director
Joined: Sep 2001
Posts: 14,680
Likes: 752
From: NEwhere Ohio
Exotic Muscle? used to make C4 lightweight pieces.
Heres what I did:
I removed dual mass flywheel and replaced with lightweight fidanza aluminum and stage III+ cluch (Saved 30 lbs). I replaced the stock cast iron manifolds with LT headers (saved maybe 20 lbs?). Removed A/C system (saved about 30 lbs). Removed spare tire/jack. Saved about 30 lbs. Upgraded front brakes to BAER Eradispeed 2-piece rotors, and tires to 6/32nds tread depth Kumho Ecsta V700 race tires (yes, these come with grooves and I run them on the street) - this saves unsprung weight which is more important.
I did have to add some weight: I added a 6pt roll cage + 30 lbs. Added a supercharger + 25 lbs.
My next step, for weight loss would be seats: Each seat weighs 42 lbs. Im going to guess racing seats weigh about 10 lbs a piece. So I just saved 62 lbs. Next, Id do something about the starter motor. Summit Racing has a lightweight starter available, saves 20lbs. Next, Id do something about the exhaust. Maybe see if a lightweight muffler or straight pipes exist. Next, Id look at the hood. Toledo Pro I think? made a lightweight snake skinner hood. Next, Id remove the mass backing underneath the carpet. Remove the BOSE. As you can see Im starting to hunt for stuff.
Heres what I did:
I removed dual mass flywheel and replaced with lightweight fidanza aluminum and stage III+ cluch (Saved 30 lbs). I replaced the stock cast iron manifolds with LT headers (saved maybe 20 lbs?). Removed A/C system (saved about 30 lbs). Removed spare tire/jack. Saved about 30 lbs. Upgraded front brakes to BAER Eradispeed 2-piece rotors, and tires to 6/32nds tread depth Kumho Ecsta V700 race tires (yes, these come with grooves and I run them on the street) - this saves unsprung weight which is more important.
I did have to add some weight: I added a 6pt roll cage + 30 lbs. Added a supercharger + 25 lbs.
My next step, for weight loss would be seats: Each seat weighs 42 lbs. Im going to guess racing seats weigh about 10 lbs a piece. So I just saved 62 lbs. Next, Id do something about the starter motor. Summit Racing has a lightweight starter available, saves 20lbs. Next, Id do something about the exhaust. Maybe see if a lightweight muffler or straight pipes exist. Next, Id look at the hood. Toledo Pro I think? made a lightweight snake skinner hood. Next, Id remove the mass backing underneath the carpet. Remove the BOSE. As you can see Im starting to hunt for stuff.
Race Director
Joined: Feb 2003
Posts: 16,475
Likes: 270
From: Kingman AZ
Cruise-In VII Veteran
Cruise-In VIII
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
This is radical but can he remove the windshield and just go with a small plexiglas wind deflector?
How's his weight? Some dieting and exercise might help or maybe hire a skinny teenage girl for the driving duties?
How's his weight? Some dieting and exercise might help or maybe hire a skinny teenage girl for the driving duties?
