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DRR Trophy
Picture of Rodney Pryor
posted Hide Post
Brian - get a gas carb and you won't have these problems...LOL
 
Posts: 119 | Location: Richmond, VA | Registered: December 07, 2002Reply With QuoteReport This Post
DRR Elite
posted Hide Post
Exactly!
 
Posts: 13522 | Location: NJ | Registered: August 20, 2000Reply With QuoteReport This Post
DRR Sportsman
Picture of 329L
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ALKY injection will out run the gas carbs a good portion of the year, when its right. But if you are looking for the easy fix, then i agree, gas is the better route.


Jeremiah Hall
 
Posts: 712 | Location: Evansville, IN | Registered: February 24, 2010Reply With QuoteReport This Post
DRR S/Pro
posted Hide Post
quote:
Originally posted by 329L:
ALKY injection will out run the gas carbs a good portion of the year, when its right. But if you are looking for the easy fix, then i agree, gas is the better route.


In some cases, yes but not in all. Some combo's just hate alky no matter how you feed it into the motor! I would agree with your statement for motors making 1.7 and less HP/CID, but once you get at around 1.8 and higher, even with injection, for NA combos then things change fast. Take a conventional headed large CID BBC motor, the amount of alky fuel needed to make over 1.8 HP/CID chokes that head that's already taxed due to the cubes and gas will make more power no matter what time of the year it is. Another combo that hates alky is SR20 BBC combo's, a number have tried but they are always slower than gas combos.
 
Posts: 2161 | Location: Tewksbury, MA,USA | Registered: November 03, 2000Reply With QuoteReport This Post
DRR Elite
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TOP38…KNOWS!
 
Posts: 13522 | Location: NJ | Registered: August 20, 2000Reply With QuoteReport This Post
DRR Sportsman
Picture of 329L
posted Hide Post
quote:
Originally posted by TOP38:
quote:
Originally posted by 329L:
ALKY injection will out run the gas carbs a good portion of the year, when its right. But if you are looking for the easy fix, then i agree, gas is the better route.


In some cases, yes but not in all. Some combo's just hate alky no matter how you feed it into the motor! I would agree with your statement for motors making 1.7 and less HP/CID, but once you get at around 1.8 and higher, even with injection, for NA combos then things change fast. Take a conventional headed large CID BBC motor, the amount of alky fuel needed to make over 1.8 HP/CID chokes that head that's already taxed due to the cubes and gas will make more power no matter what time of the year it is. Another combo that hates alky is SR20 BBC combo's, a number have tried but they are always slower than gas combos.


Agree with this. What i have been finding out is you just have to be willing to put an exhaust lobe with enough duration to make Kardassians ass look small...LOL


Jeremiah Hall
 
Posts: 712 | Location: Evansville, IN | Registered: February 24, 2010Reply With QuoteReport This Post
DRR S/Pro
posted Hide Post
quote:
Originally posted by 329L:
quote:
Originally posted by TOP38:
quote:
Originally posted by 329L:
ALKY injection will out run the gas carbs a good portion of the year, when its right. But if you are looking for the easy fix, then i agree, gas is the better route.


In some cases, yes but not in all. Some combo's just hate alky no matter how you feed it into the motor! I would agree with your statement for motors making 1.7 and less HP/CID, but once you get at around 1.8 and higher, even with injection, for NA combos then things change fast. Take a conventional headed large CID BBC motor, the amount of alky fuel needed to make over 1.8 HP/CID chokes that head that's already taxed due to the cubes and gas will make more power no matter what time of the year it is. Another combo that hates alky is SR20 BBC combo's, a number have tried but they are always slower than gas combos.


Agree with this. What i have been finding out is you just have to be willing to put an exhaust lobe with enough duration to make Kardassians ass look small...LOL


Laughing Hard

Typical spread port stuff that make good power on gas have 30 degrees more on the EX side. It also becomes a challenge to keep all that alky atomized too.
 
Posts: 2161 | Location: Tewksbury, MA,USA | Registered: November 03, 2000Reply With QuoteReport This Post



DRR Top Comp
Picture of wideopen231
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I have alweays started below what I thought it should be and stepped up 2* at a time. When time slip shows slowing or no gain I back up. I have had situation where first move showed backing up might be way to go.

With high compression and big cams safe and then creep up seems best approach.

Sometimes its not what makes most power but what the car wants that counts.




America home of free. Brought to you by 2nd amendment.
 
Posts: 4236 | Location: Greensboro NC | Registered: May 24, 2011Reply With QuoteReport This Post
DRR Pro
Picture of 00 DEAD ON
posted Hide Post
quote:
Originally posted by TOP38:
quote:
Originally posted by 00 DEAD ON:
[QUOTE]Originally posted by 329L:
How many teeth are on the crank gear and pump gear? If its not 50% that could be your problem. And would also explain the tune up you need to make it work

36/18 teeth. 50%[/
So no data logger, no fuel pressure etc?

Get the pump flowed....

either way, I would listen to the time slips regarding fuel and be careful with timing.


Crank has 18 teeth and pump has 36. That’s 50%
Also pump pressure is 108 psi at finish line
Thx


Brian Mollison
2013 American Dragster
2020 Sumerduck Dragway VA Top ET Champion
2017 Sumerduck Top ET & SSS Track Champion
2017 MAC Top ET Track Champion
2009 Sumerduck Dragway Va Top ET & IHRA SSS Track Champion
2008 IHRA Division 1 Top ET Bracket Final Runner-up
2007 Colonial Beach Dragway Top ET Track Champion
 
Posts: 1029 | Location: Stafford, Virginia | Registered: October 03, 2006Reply With QuoteReport This Post
DRR Pro
Picture of 00 DEAD ON
posted Hide Post
quote:
Originally posted by TOP38:
quote:
Originally posted by 00 DEAD ON:
quote:
Originally posted by 329L:
How many teeth are on the crank gear and pump gear? If its not 50% that could be your problem. And would also explain the tune up you need to make it work

36/18 teeth. 50%


So no data logger, no fuel pressure etc?

Get the pump flowed....

either way, I would listen to the time slips regarding fuel and be careful with timing.


At the shift (7400) my data logger shows 118 psi. So I feel the pump is ok.
Thanks
My can is a 55mm. @.050. 283/310 on a 115 lisa. Installed at 112. .860/.850. I have 1.75 rockers
Again thx


Brian Mollison
2013 American Dragster
2020 Sumerduck Dragway VA Top ET Champion
2017 Sumerduck Top ET & SSS Track Champion
2017 MAC Top ET Track Champion
2009 Sumerduck Dragway Va Top ET & IHRA SSS Track Champion
2008 IHRA Division 1 Top ET Bracket Final Runner-up
2007 Colonial Beach Dragway Top ET Track Champion
 
Posts: 1029 | Location: Stafford, Virginia | Registered: October 03, 2006Reply With QuoteReport This Post
DRR Pro
Picture of 00 DEAD ON
posted Hide Post
quote:
Originally posted by 00 DEAD ON:
quote:
Originally posted by TOP38:
quote:
Originally posted by 00 DEAD ON:
quote:
Originally posted by 329L:
How many teeth are on the crank gear and pump gear? If its not 50% that could be your problem. And would also explain the tune up you need to make it work

36/18 teeth. 50%


So no data logger, no fuel pressure etc?

Get the pump flowed....

either way, I would listen to the time slips regarding fuel and be careful with timing.


At the shift (7400) my data logger shows 118 psi of fuel pressure. So I feel the pump is ok.
Thanks
My cam is a 55mm. @.050. 283/310 on a 115 lsa. Installed at 112. .860/.850. I have 1.75 rockers
Again thx


Brian Mollison
2013 American Dragster
2020 Sumerduck Dragway VA Top ET Champion
2017 Sumerduck Top ET & SSS Track Champion
2017 MAC Top ET Track Champion
2009 Sumerduck Dragway Va Top ET & IHRA SSS Track Champion
2008 IHRA Division 1 Top ET Bracket Final Runner-up
2007 Colonial Beach Dragway Top ET Track Champion
 
Posts: 1029 | Location: Stafford, Virginia | Registered: October 03, 2006Reply With QuoteReport This Post
DRR Pro
Picture of rusty
posted Hide Post
needs 4.30 gears


honesty is the best policy,insanity is a better deffense
1.036, 6.16@ 224

 
Posts: 1421 | Location: texas | Registered: February 17, 2006Reply With QuoteReport This Post
DRR Top Comp
posted Hide Post
Needs a 113 LSA camshaft-598 and gasoline carb-12 degree.

1.69 low 4.30 final gear
 
Posts: 9398 | Location: Madeira Beach Fl. | Registered: June 12, 2018Reply With QuoteReport This Post
DRR Top Comp
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155 mph converter slipping 13.5% crossing 7400 rpm's.
 
Posts: 9398 | Location: Madeira Beach Fl. | Registered: June 12, 2018Reply With QuoteReport This Post



DRR Pro
Picture of Alaskaracer
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My car was 2.5 TENTHS faster on alky than on gas....with no other changes...All this bs about alky doesn't work is just that, BULL****! My stuff liked 32* on gas. On alky it was happy at 36*. Dual Terminators on my stuff. This whole thing that alky "chokes" the engine is also a bunch of bull....Most forget that alky is 50% oxygen by volume....so while it takes more fuel than gas, it's also bringing more oxygen with it....

SR20 heads run fine with alky if the right cam is used. Spread port heads run fine with alky if the right cam is used. You can disagree with this all you want, but that's fact......And with alky, if you're losing hp on the top end, you'll likely gain it back with the addition of a high speed bypass......

Is alky the best fuel for every combo? no......but there is a lot of bs floating around out there that's exactly that...BS. The more you look, the more you find.....

Slam away....


Mark Goulette
Owner/Driver of the Livin' The Dream Racing dragster
www.livinthedreamracing.com
"Speed kills but it's better than going slow!"
Authorized Amsoil Retailer
 
Posts: 1503 | Location: Back home in Alaska! | Registered: February 13, 2011Reply With QuoteReport This Post
DRR Pro
Picture of Alaskaracer
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As far as gains when approaching 1.7-1.8 hp per cube, look at 410" Sprint car engines....they are over 2 hp per cube...on alky.....and they find more power every season....most of those engines make 950-1000 hp, n/a.......


Mark Goulette
Owner/Driver of the Livin' The Dream Racing dragster
www.livinthedreamracing.com
"Speed kills but it's better than going slow!"
Authorized Amsoil Retailer
 
Posts: 1503 | Location: Back home in Alaska! | Registered: February 13, 2011Reply With QuoteReport This Post
DRR Pro
Picture of Alaskaracer
posted Hide Post
And for comparison:

Gas:
https://www.sonnysracingengine...sar-777-cu-in-1750hp


Alky:
https://www.sonnysracingengine...hp-truck-pull-engine


Food for thought.....


Mark Goulette
Owner/Driver of the Livin' The Dream Racing dragster
www.livinthedreamracing.com
"Speed kills but it's better than going slow!"
Authorized Amsoil Retailer
 
Posts: 1503 | Location: Back home in Alaska! | Registered: February 13, 2011Reply With QuoteReport This Post
DRR Top Comp
Picture of wideopen231
posted Hide Post
quote:
Originally posted by RPROGAS:
Read the plugs, it's the safest way to make sure you are not hurting anything. There are too many variables to make a safe suggestion.

Bob
This^^^

I do agree with try 2 degrees and see how it likes it. Also agree the plugs will tell you when there. Timeslip may be affected by other parts of combo and not tell whole story. Kind of like having heart surgery because blood pressure is high. If bottomend is rich and you just add timing it may go faster but not really the issue. JMO and 2 cent maybe over valued.




America home of free. Brought to you by 2nd amendment.
 
Posts: 4236 | Location: Greensboro NC | Registered: May 24, 2011Reply With QuoteReport This Post
DRR Top Comp
Picture of Curly1
posted Hide Post
quote:
Originally posted by TOP38:
quote:
Originally posted by 329L:
quote:
Originally posted by TOP38:
quote:
Originally posted by 329L:
ALKY injection will out run the gas carbs a good portion of the year, when its right. But if you are looking for the easy fix, then i agree, gas is the better route.


In some cases, yes but not in all. Some combo's just hate alky no matter how you feed it into the motor! I would agree with your statement for motors making 1.7 and less HP/CID, but once you get at around 1.8 and higher, even with injection, for NA combos then things change fast. Take a conventional headed large CID BBC motor, the amount of alky fuel needed to make over 1.8 HP/CID chokes that head that's already taxed due to the cubes and gas will make more power no matter what time of the year it is. Another combo that hates alky is SR20 BBC combo's, a number have tried but they are always slower than gas combos.


Agree with this. What i have been finding out is you just have to be willing to put an exhaust lobe with enough duration to make Kardassians ass look small...LOL


Laughing Hard

Typical spread port stuff that make good power on gas have 30 degrees more on the EX side. It also becomes a challenge to keep all that alky atomized too.


While I agree with much of what was said above I think much of the talk about bad atomization is just unsubstantiated talk. My thinking is when you have air and fuel rammed in there and pistons going up and down at over 7,000 RPM the fuel is going to be mixed up good. I have ran mechanical fuel injection systems from 40 PSI at finish line to 150+ with virtually no difference in performance.
Through many years of improving performance we have optimized some gas combinations better. I think some day we will have alcohol combos better and I do think much of that will come from cam design.

I can tell you this when someone (Who ever) gets it figured out then most everyone who is saying go to Gas will be on alcohol in no time. You can say this is bracket racing and performance does not matter but fact is we all want to go faster.

Even is Super Comp where they are killing a lot of ET some are proud of MPH they get at finish line and to them faster is better. Pick up 5 MPH going to alcohol and watch how fast those same guys switch to alcohol.

The motor is an air pump and it is relatively simple and does not know or care what fuel. If you pick up a lot on most combinations going to alcohol then when someone finds the right combo on large cubic inch motors you will see similar performance gains on alcohol. The hard part is getting that combination right and we are not there yet. Certainly does not make me think alcohol is not a good fuel for race cars. It has been proven to work great in many different types of racing, INDY cars, sprint cars, blown motors, turbocharged and many others including drag racing.

One other thing is we all want an advantage over others so when we get the right combo on alcohol they are not going to want to advertise it to their competition.


https://postimg.cc/gallery/np3zpruo/
"Dunning-Kruger Effect"
-a type of Cognitive bias where people with little expertise or ability assume they have superior expertise or ability. This overestimation occurs as a result of the fact that they do not have enough knowledge to know they don't have enough knowledge.

Before you argue with someone ask yourself, "Is this person mentally mature enough to grasp the concept of a different perspective?" If not there is no point to argue.

4X NE2 CHAMPION. 2020 TDRA NE2 Champion
 
Posts: 4062 | Location: United States of Texas | Registered: April 02, 2011Reply With QuoteReport This Post
DRR Top Comp
posted Hide Post
What fuel is used in a Pro Stocker?

NHRA Pro Stock is the highest level of push rod engine technology on the planet.

Efficient engines run better and make more power on gasoline, I've experienced it with 23 sbc engines I've built.

My 23 degree 427 sbc would make more power on gasoline.

I don't mind anyone believing different.

Experience varies.
 
Posts: 9398 | Location: Madeira Beach Fl. | Registered: June 12, 2018Reply With QuoteReport This Post
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