Complete Throttle Stop Set-Up

Vail Motorsports · 03-09-2016, 10:33 AM

I am considering doing some Super Street racing. I don't have a throttle stop at all right now. I have an 850 Quick Fuel race carb with annular boosters on a SBF that makes 620 HP. Car runs very low 10's at 131 MPH on pump gas. I have room for a plate stop under the carb. What is the best set-up for this? I need everything, even the controller. Thanks.

Lenny5160 · 03-09-2016, 02:07 PM

I'd go with a #1 Stop under-carb style. Air or electric will work; personal preference. Any delay box with a timer function will operate it equally well, in my opinion.

If you use electric, be sure to use 10ga wire to power and ground the throttle stop solenoid, with the power coming through a relay that is operated by the delay box. I initially ignored this advice and ran 14ga wire direct from the delay box to the throttle stop. It seemed to work fine for awhile, but eventually it was opening very slowly. HUGE difference after upgrading the wiring.

Good luck!

Tom Goldman · 03-09-2016, 02:22 PM

If you decide on a #1 Stop , which is the best , use a merge spacer under it .
this really helps with straightening the flow below the stop and helps the MPH.
As far as controllers go if your young and love pushing buttons and all kinds of features that you may or may not want ,Dedenbear or Biondo/Digital Delay are both good .
If you are like me and like ease and simplicity ,The K&R Pro Cube is absolutely the best there is.
Even an old guy like me can use it !

Vail Motorsports · 03-09-2016, 11:59 PM

Thanks for the information. I already have a Dedenbear Thunder delay box, but it doesn't have the throttle stop timer. I'll have to get just a timer for that. I've been bracket racing for a long time, just thought I'd try my luck at something different.

Keith 944 · 03-10-2016, 09:06 AM

Quote:

Originally Posted by Tom Goldman

If you decide on a #1 Stop , which is the best , use a merge spacer under it .
this really helps with straightening the flow below the stop and helps the MPH.
As far as controllers go if your young and love pushing buttons and all kinds of features that you may or may not want ,Dedenbear or Biondo/Digital Delay are both good .
If you are like me and like ease and simplicity ,The K&R Pro Cube is absolutely the best there is.
Even an old guy like me can use it !

Hey Tom can you give me a link to that spacer I'd like to check it out thanks

pmrphil · 03-10-2016, 09:48 AM

The HVH spacers seem to be about the best out there - the 2 inch is the one I prefer most. Check them out, you won't be sorry.

Keith 944 · 03-10-2016, 10:10 AM

Two inch spacer with the two inch t stop? I will need a bigger scoop lol. As to the original post I also recommend the 1 stop. Air on off four blade, better resale if you decide to sell later

Tom Goldman · 03-10-2016, 10:25 PM

Keith , before I put on the Stinnett /#1 Stop which has a merge built in to it , I ran a #1 Stop with a 1 1/4" merge spacer below it . took a 1/4 " off of a 1 1/2" spacer for clearance. I used the HVH also.

Vail Motorsports · 03-11-2016, 12:49 AM

The Stinnett Stop is only for a Dominator, right? Or do they make one for a 4150?

Tom Goldman · 03-11-2016, 01:34 PM

Quote:

Originally Posted by Vail Motorsports

The Stinnett Stop is only for a Dominator, right? Or do they make one for a 4150?

Yes the Stinnett stop is a large bore Dominator only .
No 4150 flange units......You can gain some performance with any conventional stop by using a merge under it . Most Super Class engines like more plenum volume any way ,as long as you have the scoop clearance.
When the top of the carb is too close to the scoop ,performance can fall off pretty dramatically.

03-09-2016, 02:07 PM	#2
Lenny5160 Senior Member Join Date: Nov 2015 Location: Inver Grove Heights, MN Posts: 898 Likes: 604 Liked 432 Times in 225 Posts	Re: Complete Throttle Stop Set-Up I'd go with a #1 Stop under-carb style. Air or electric will work; personal preference. Any delay box with a timer function will operate it equally well, in my opinion. If you use electric, be sure to use 10ga wire to power and ground the throttle stop solenoid, with the power coming through a relay that is operated by the delay box. I initially ignored this advice and ran 14ga wire direct from the delay box to the throttle stop. It seemed to work fine for awhile, but eventually it was opening very slowly. HUGE difference after upgrading the wiring. Good luck! __________________ S/ST 51 S/C 53

03-09-2016, 02:22 PM	#3
Tom Goldman VIP Member Join Date: Jan 2003 Location: Allentown,PA Posts: 2,454 Likes: 825 Liked 776 Times in 221 Posts	Re: Complete Throttle Stop Set-Up If you decide on a #1 Stop , which is the best , use a merge spacer under it . this really helps with straightening the flow below the stop and helps the MPH. As far as controllers go if your young and love pushing buttons and all kinds of features that you may or may not want ,Dedenbear or Biondo/Digital Delay are both good . If you are like me and like ease and simplicity ,The K&R Pro Cube is absolutely the best there is. Even an old guy like me can use it ! __________________ Tom Goldman 1500 SG , 1506 STK

03-09-2016, 11:59 PM	#4
Vail Motorsports Junior Member Join Date: Mar 2016 Location: Quitman, Louisiana Posts: 3 Likes: 0 Liked 0 Times in 0 Posts	Re: Complete Throttle Stop Set-Up Thanks for the information. I already have a Dedenbear Thunder delay box, but it doesn't have the throttle stop timer. I'll have to get just a timer for that. I've been bracket racing for a long time, just thought I'd try my luck at something different.

03-10-2016, 09:48 AM	#6
pmrphil Member Join Date: Aug 2010 Location: CT Posts: 432 Likes: 1,461 Liked 322 Times in 137 Posts	Re: Complete Throttle Stop Set-Up The HVH spacers seem to be about the best out there - the 2 inch is the one I prefer most. Check them out, you won't be sorry. __________________ Phil Molski PMR Performance S/C 1623

03-10-2016, 10:10 AM	#7
Keith 944 VIP Member Join Date: Feb 2006 Location: Dela-where? Posts: 2,162 Likes: 1,085 Liked 1,776 Times in 557 Posts	Re: Complete Throttle Stop Set-Up Two inch spacer with the two inch t stop? I will need a bigger scoop lol. As to the original post I also recommend the 1 stop. Air on off four blade, better resale if you decide to sell later __________________ KEITH MAYERS 2 X somebody many X nobody

03-09-2016, 10:33 AM	#1
Vail Motorsports Junior Member Join Date: Mar 2016 Location: Quitman, Louisiana Posts: 3 Likes: 0 Liked 0 Times in 0 Posts	Complete Throttle Stop Set-Up I am considering doing some Super Street racing. I don't have a throttle stop at all right now. I have an 850 Quick Fuel race carb with annular boosters on a SBF that makes 620 HP. Car runs very low 10's at 131 MPH on pump gas. I have room for a plate stop under the carb. What is the best set-up for this? I need everything, even the controller. Thanks.

03-10-2016, 10:25 PM	#8
Tom Goldman VIP Member Join Date: Jan 2003 Location: Allentown,PA Posts: 2,454 Likes: 825 Liked 776 Times in 221 Posts	Re: Complete Throttle Stop Set-Up Keith , before I put on the Stinnett /#1 Stop which has a merge built in to it , I ran a #1 Stop with a 1 1/4" merge spacer below it . took a 1/4 " off of a 1 1/2" spacer for clearance. I used the HVH also. __________________ Tom Goldman 1500 SG , 1506 STK

03-11-2016, 12:49 AM	#9
Vail Motorsports Junior Member Join Date: Mar 2016 Location: Quitman, Louisiana Posts: 3 Likes: 0 Liked 0 Times in 0 Posts	Re: Complete Throttle Stop Set-Up The Stinnett Stop is only for a Dominator, right? Or do they make one for a 4150?