« previous next »
Pages: [1]   Go Down

Author Topic: Throttle stop  (Read 3598 times)

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
Throttle stop
« on: August 09, 2015, 06:38:52 AM »
I need to slow my car down a couple of tenths for some index racing and I was wondering if I could just adjust my throttle stop so my injectors don't open all the way . Any thought about this ? Bill
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: Throttle stop
« Reply #1 on: August 09, 2015, 06:48:45 AM »
Bill,

    IMO size of injector would have big effect on how well it would work. If yours has smaller butter flys like  I'm thinking it would work fine.Now if you had a D- ported bird like I do .I think it would be hard to dial in.

  Doubting you have a high low valve body so you could eave in high using transbrake?Shift car off timer and do it right after the launch?This with partial open injector should slow you good amount.Oh yea leave the nitrous off.LOL
Logged
Relecting obama is like shooting right foot because it did not hurt enough when you shot left foot

Offline Paul New

  • Hero Member
  • *****
  • Posts: 744
    • View Profile
  • Your Best Time: 6.47 @ 214 MPH SBC
  • Your Engine: 387" SBC
  • Your Track: Woodburn Dragstrip
  • Your Vehicle: 2005 FED
Re: Throttle stop
« Reply #2 on: August 09, 2015, 08:12:47 AM »
A couple tenth I would short shift maybe take 4 degrees of timing out
Logged

Offline BK

  • Sr. Member
  • ****
  • Posts: 310
    • View Profile
  • Your Best Time: 8.45 / 5.30
  • Your Track: Empire Dagway
  • Your Vehicle: Late 70's FED
Re: Throttle stop
« Reply #3 on: August 09, 2015, 01:35:35 PM »
At part throttle could there be a chance of a lean condition? Closing down butterflies would also close the barrel valve some. If the air didn't slow down as fast as the fuel I would think that could be a problem. A throttle plate of some kind might be better, then barrel valve isn't affected.
Logged
Pages: [1]   Go Up
« previous next »