« previous next »
Pages: [1]   Go Down

Author Topic: Clutch pack  (Read 2984 times)

Offline Guido

  • Newbie
  • *
  • Posts: 32
    • View Profile
  • Your Best Time: 7.52 185 mph
  • Your Engine: Supercharged sbc
  • Your Track: Kearney raceway park
  • Your Vehicle: 170" FED
  • General Location: Mid westMHRUWX
Clutch pack
« on: July 07, 2021, 04:12:08 AM »
I am running a 383 SBC with a 8-71 in a FED and and rebuilding the power glide. Should I upgrade to a 8 clutch pack or will a new 6 and band be fine? I don't think I make any serious hp the car runs in the 8.5 area but I did smoke the clutches in there now.
Logged

Offline msundstrom

  • Full Member
  • ***
  • Posts: 119
    • View Profile
  • Your Best Time: 7.45 @ 182 in 1/4
  • Your Engine: NA Injected 505 BBC on 45%
  • Your Track: Woodburn Dragstrip
  • Your Vehicle: FED
  • General Location: Washington Coast
Re: Clutch pack
« Reply #1 on: July 08, 2021, 08:19:17 PM »
I lightly burned my 6 disc behind a NA  BBC. Went to an 8 disc and added more power. I assume it’s all good, haven’t had it apart in 7 years. If it’s apart and burnt 6 it’s not that much more for 8 steels and fibers. Only change would be machining the piston for clearance. I’m assuming pump condition is good.
Logged

Offline tcoupekyle

  • Sr. Member
  • ****
  • Posts: 354
    • View Profile
  • Your Best Time: 4.70 1/8
  • Your Track: Houston Motorsport park
  • Your Vehicle: 225" slip joint FED
  • General Location: Houston
Re: Clutch pack
« Reply #2 on: July 10, 2021, 04:10:34 AM »
When I worked at Exner transmission most any time we did a glide it would get 8 clutches. Think it's worth the investment to just do it.
Logged

Offline masracingtd1167

  • Hero Member
  • *****
  • Posts: 1110
  • bill masiello Shelton Ct.
    • View Profile
  • Your Best Time: 7.40's at 181 on motor 6.94 at 192 nitrous
  • Your Engine: 394 chevy
  • Your Track: Lebanon Valley Dragway
  • Your Vehicle: 2003 Neil and Parks
Re: Clutch pack
« Reply #3 on: July 10, 2021, 06:35:25 AM »
If it was an un blown car I would say 5 or 6 would be fine but in your case I would go to the 8 clutch pack ! It seems that blower cars are a little harder on clutches ! Also as some one said you might want to step up on your pump pressure a little with a heavier relief spring in the valve body !
Logged

Offline wideopen231

  • Hero Member
  • *****
  • Posts: 1911
    • View Profile
  • Your Best Time: 1/8 3.70@ 198 1/4 5.78@245
  • Your Engine: Hemi 526 ci alcohol
  • Your Track: Piedmont
  • Your Vehicle: 225 CMC FED
  • General Location: NORTH CAROLINA
Re: Clutch pack
« Reply #4 on: July 10, 2021, 06:02:13 PM »
A blower adds torque So why would you not want best set up you can get to handle it? Heck I would go with 10 pack drum set up. I question rather I need one and I don't have a blower. I do figure to install a 10 clutch drum before throwing a heavy load of nitro at it.

In a fed we ride with feet right next to trans and having best parts in there just seems like good idea. JMO
Logged
Relecting obama is like shooting right foot because it did not hurt enough when you shot left foot

Offline masracingtd1167

  • Hero Member
  • *****
  • Posts: 1110
  • bill masiello Shelton Ct.
    • View Profile
  • Your Best Time: 7.40's at 181 on motor 6.94 at 192 nitrous
  • Your Engine: 394 chevy
  • Your Track: Lebanon Valley Dragway
  • Your Vehicle: 2003 Neil and Parks
Re: Clutch pack
« Reply #5 on: July 11, 2021, 11:25:59 AM »
Been having big trouble with my sons Pro charged big block ! could not get more than 6 runs out of a high gear without burning it up ! He went to a ringless shaft big pump and 10 clutches ! Also a new BTE valve body ! We will see how that works out !
Logged
Pages: [1]   Go Up
« previous next »