Throttle Stopping a 700 CI Motor

MRT · 05-12-2011, 04:46 PM

I'm sure someone out there has some experience throttle stopping a 700 inch motor. I'm looking at doing this and would appreciate any suggestions. I really don't have the exact cam specs but its 11 degree head single carb (don't have a carb yet but will prob be a 1400 cfm APD or Quick Fuel) and makes approx 1300 hp. It's setup for two stages of nitrous but I want something with a little more usability. Would like to run Super Comp, brackets and Top Dragster when I can. I'd say about 80% will be wide open racing with 20% throttle stop racing. I want to stay with my #1 Stop that's why I decided to put a single carb on it. I've played around with inline stops a little and prefer the under carb version, but don't know if this is the right way to go.

Any ideas or suggestions are greatly appreciated. Thanks in advance!!

Max

nickh · 05-12-2011, 05:33 PM

Donnie Pedan is running a 737 on a throttle stop, he was running 9.91 at 193 mph. Donnie's website is www.countrymotorsinc.com he is a great guy and helped us with our converter on the car below.

Back in 05 & 06 we had a Haas Monte Carlo with a Schmidt "Hulk" 705 c.i. we never ran a throttle stop but we did run a 7.05 @ 196 on motor at 2450 lbs. and that was with a very conservative tune on the motor.

One thing I learned on working on the big motors is to think conservative and do not take big swings on the tuneup.

Charlie Yannetti · 05-16-2011, 01:49 PM

Hi Max.. If you are looking for a more performance based style of racing, I would talk to Biondo Racing Products about an inline stop.. when I switched from an inline to an under carb #1 Stop, I lost some mph.. so that may hurt your T/D or bracket performance.. with an inline set up you can also take a look at the 2 four barrel set up.. and you should have no problem setting it up for S/C.. but this is only if you want to go as fast as your combination can go..

I have never run my present combination without the #1 Stop, but I'm sure it affects ET also..

MRT · 05-18-2011, 10:03 AM

Thanks for the ideas guys. I just posted the motor under classifieds for sale. Came across another great deal (as they say one more good deal and we'll be out of business) that I couldn't pass up. If I don't sell it, I may try and run it with two #1 Stops and try to get them as closely synchronized as possible. If I figure it out I'll be sure to let you know;-)

Thanks again!!

Max

jmarkaudio · 05-26-2011, 09:36 PM

You could always try one of these... Currently on the 673 Sonny's engine in Mike Laws (BLP President) Top Dragster. 6.70's in the 1/4 with one carb N/A. It can be duplicated with a standard bolt pattern billet body, this on has 2.600 throttle blades but can go up to 2.800 on either the spread carb as shown or a standard Dominator pattern. Intake work required for either, if you have a sheet metal a top for either isn't too hard to do.

www.blp.com

05-12-2011, 05:33 PM	#2
nickh Senior Member Join Date: Sep 2010 Location: Houston,Texas Posts: 824 Likes: 3,585 Liked 650 Times in 194 Posts	Re: Throttle Stopping a 700 CI Motor Donnie Pedan is running a 737 on a throttle stop, he was running 9.91 at 193 mph. Donnie's website is www.countrymotorsinc.com he is a great guy and helped us with our converter on the car below. Back in 05 & 06 we had a Haas Monte Carlo with a Schmidt "Hulk" 705 c.i. we never ran a throttle stop but we did run a 7.05 @ 196 on motor at 2450 lbs. and that was with a very conservative tune on the motor. One thing I learned on working on the big motors is to think conservative and do not take big swings on the tuneup.

05-16-2011, 01:49 PM	#3
Charlie Yannetti Senior Member Join Date: Jan 2005 Location: Alpine, NJ Posts: 568 Likes: 188 Liked 192 Times in 83 Posts	Re: Throttle Stopping a 700 CI Motor Hi Max.. If you are looking for a more performance based style of racing, I would talk to Biondo Racing Products about an inline stop.. when I switched from an inline to an under carb #1 Stop, I lost some mph.. so that may hurt your T/D or bracket performance.. with an inline set up you can also take a look at the 2 four barrel set up.. and you should have no problem setting it up for S/C.. but this is only if you want to go as fast as your combination can go.. I have never run my present combination without the #1 Stop, but I'm sure it affects ET also..

05-18-2011, 10:03 AM	#4
MRT Junior Member Join Date: Nov 2008 Posts: 5 Likes: 0 Liked 0 Times in 0 Posts	Re: Throttle Stopping a 700 CI Motor Thanks for the ideas guys. I just posted the motor under classifieds for sale. Came across another great deal (as they say one more good deal and we'll be out of business) that I couldn't pass up. If I don't sell it, I may try and run it with two #1 Stops and try to get them as closely synchronized as possible. If I figure it out I'll be sure to let you know;-) Thanks again!! Max

05-26-2011, 09:36 PM	#5
jmarkaudio Junior Member Join Date: Apr 2008 Posts: 83 Likes: 0 Liked 0 Times in 0 Posts	Re: Throttle Stopping a 700 CI Motor You could always try one of these... Currently on the 673 Sonny's engine in Mike Laws (BLP President) Top Dragster. 6.70's in the 1/4 with one carb N/A. It can be duplicated with a standard bolt pattern billet body, this on has 2.600 throttle blades but can go up to 2.800 on either the spread carb as shown or a standard Dominator pattern. Intake work required for either, if you have a sheet metal a top for either isn't too hard to do. www.blp.com Attached Thumbnails

05-12-2011, 04:46 PM	#1
MRT Junior Member Join Date: Nov 2008 Posts: 5 Likes: 0 Liked 0 Times in 0 Posts	Throttle Stopping a 700 CI Motor I'm sure someone out there has some experience throttle stopping a 700 inch motor. I'm looking at doing this and would appreciate any suggestions. I really don't have the exact cam specs but its 11 degree head single carb (don't have a carb yet but will prob be a 1400 cfm APD or Quick Fuel) and makes approx 1300 hp. It's setup for two stages of nitrous but I want something with a little more usability. Would like to run Super Comp, brackets and Top Dragster when I can. I'd say about 80% will be wide open racing with 20% throttle stop racing. I want to stay with my #1 Stop that's why I decided to put a single carb on it. I've played around with inline stops a little and prefer the under carb version, but don't know if this is the right way to go. Any ideas or suggestions are greatly appreciated. Thanks in advance!! Max