throttle stop motor on dyno question

flash · 03-27-2018, 08:01 PM

anybody dyno there supergas motors with stop on motor-wide open of course? then take the stop off to see the horsepower loss incurred by having that restriction on the motor.

SC363B · 03-27-2018, 10:58 PM

Never on dyno but I always took my under the carb TS off to run Q16 with my SC dragster It would run 3-4 hundredths quicker.

Rich Biebel · 03-28-2018, 06:04 PM

My friend did.....and on Q-15 which is a 50-50 mix of Q-16 and a std fuel that I don't recall what fuel that is.....

His 582 with a Sunset Plate stop (tapered bottom) vs no stop was about 20-30 hp difference....IIRC....over 1000HP with and without the plate...

I borrowed his stop and won a race with it and also ran Q-15 for a while myself....

Hacksaw · 03-28-2018, 09:03 PM

VP C-15 is a 50/50 mix of C-16 and C-14. Q-16 is an oxygenated fuel.

Rich Biebel · 03-29-2018, 03:08 PM

Q-15 is a mix Gary Stinett supposedly tried and is what I was referring to.

A 50/50 mix of Q-16 and a non oxygenated fuel. I just don't recall what that fuel was.....C-14 or C-16 ...or ?

My buddy ran it for a few seasons and won numerous races with it.

His carb was calibrated for it.....and dyno'ed with it.

I ran it for a while and just upped my jets a few sizes.

It ran fine and is worth a solid 2 MPH...

Our friend and VP dealer supplied it to us at the races....

Very offensive fumes and I was more than happy to stop using it.....

You definitely know when your handling "funny gas" as someone once called it...

shawnfricke · 03-30-2018, 09:21 AM

Q16 + C15 = Q15

I used it and we still run it in one car, works well as long as you're tuned up properly.

Shawn

B1Ken · 06-01-2018, 03:44 PM

What about a disc stop? I can't see any reason for a HP loss with that. It basically acts like a four hole spacer.

03-27-2018, 08:01 PM	#1
flash Junior Member Join Date: Apr 2012 Posts: 89 Likes: 1 Liked 6 Times in 5 Posts	throttle stop motor on dyno question anybody dyno there supergas motors with stop on motor-wide open of course? then take the stop off to see the horsepower loss incurred by having that restriction on the motor.

03-27-2018, 10:58 PM	#2
SC363B Junior Member Join Date: May 2002 Location: Springfield IL Posts: 24 Likes: 20 Liked 0 Times in 0 Posts	Re: throttle stop motor on dyno question Never on dyno but I always took my under the carb TS off to run Q16 with my SC dragster It would run 3-4 hundredths quicker.

03-28-2018, 06:04 PM	#3
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,275 Likes: 25 Liked 510 Times in 200 Posts	Re: throttle stop motor on dyno question My friend did.....and on Q-15 which is a 50-50 mix of Q-16 and a std fuel that I don't recall what fuel that is..... His 582 with a Sunset Plate stop (tapered bottom) vs no stop was about 20-30 hp difference....IIRC....over 1000HP with and without the plate... I borrowed his stop and won a race with it and also ran Q-15 for a while myself.... __________________ Rich Biebel S/C 1479

03-28-2018, 09:03 PM	#4
Hacksaw Senior Member Join Date: Sep 2016 Posts: 838 Likes: 148 Liked 276 Times in 151 Posts	Re: throttle stop motor on dyno question VP C-15 is a 50/50 mix of C-16 and C-14. Q-16 is an oxygenated fuel.

03-29-2018, 03:08 PM	#5
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,275 Likes: 25 Liked 510 Times in 200 Posts	Re: throttle stop motor on dyno question Q-15 is a mix Gary Stinett supposedly tried and is what I was referring to. A 50/50 mix of Q-16 and a non oxygenated fuel. I just don't recall what that fuel was.....C-14 or C-16 ...or ? My buddy ran it for a few seasons and won numerous races with it. His carb was calibrated for it.....and dyno'ed with it. I ran it for a while and just upped my jets a few sizes. It ran fine and is worth a solid 2 MPH... Our friend and VP dealer supplied it to us at the races.... Very offensive fumes and I was more than happy to stop using it..... You definitely know when your handling "funny gas" as someone once called it... __________________ Rich Biebel S/C 1479 Last edited by Rich Biebel; 03-29-2018 at 03:13 PM.

03-30-2018, 09:21 AM	#6
shawnfricke Junior Member Join Date: Aug 2007 Posts: 29 Likes: 1 Liked 0 Times in 0 Posts	Re: throttle stop motor on dyno question Q16 + C15 = Q15 I used it and we still run it in one car, works well as long as you're tuned up properly. Shawn

06-01-2018, 03:44 PM	#7
B1Ken Junior Member Join Date: Feb 2003 Posts: 13 Likes: 0 Liked 0 Times in 0 Posts	Re: throttle stop motor on dyno question What about a disc stop? I can't see any reason for a HP loss with that. It basically acts like a four hole spacer.