Projects Austin Somerset Gasser Build (DragNasty)

The only thing I'm afraid of is stick and such short WB car and real light. There is a reason why SWC, MAZ, OGM, went auto. Don't get me wrong. I LOVE trnsmixing

 

I'am with manicmachaic us third gear and burn them past the 60 foot mark for starters.
Use a throttle with lots of travel. If the track will let you us a burn out rev limiter

 

There were a lot of tracks in the '70s and '80s that would disqualify you for doing after tree burnouts. The "Grove" and yes Byron.

 

Seems most all the gassers go past the lights now.
Part of the show I guess.

 

Gassers, funny cars, dragsters, altered, SS, A/fx. Didn't matter, you went past the tree, DONE you lost!!

 

Here is my latest high performance purchase for the Austin. Just got a confirmation email that it has shipped and on the way....lol!

 

Oh heeerrrrrreee we go just gotta have a/c. Next you will be wearing a gold chain and winning the lawn chair nationals Lmao


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I don't know I have a killer lawn chair

 

Dude it was like 120 Friday night in the shade at the track! PLUS it is super high output so I figure if it is positioned just right maybe I can get some thrust out of it! LMAO! I don't know if you are watching or not but the car is only running 8 second 1/8th miles...I need all the help I can get!

 

Hey man I'm just messing with ya Trust me I get it you think it was bad then you should be at bonneville and be stuck in the car ready to go for twenty min it sucks "Don't worry bout the et yet focus on getting used to the car and its functions then turn up the wick " that was a quote from a good friend at meltdown in regards to my digger I think the same thing applies here I felt it was really good advice. Keep it up that thing will be flying down the track in no time


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True story. Just get used to the routine--fire the car, into the water, brakes on (hard), line-loc held, drop the clutch, shift into second and maybe third in the water and then let it roll. For now, until you figure out the launch, it is probably better to roll it out and then start banging gears to get a feel for how it drives at increasing speeds.

Roo

 

Yep that is the plan...Jackson and I are just sort of messing with each other here... The reality for this past weekend was we figured out the burn out situation (still have not executed it but we have it figured out). We made several passes without launching it. Each time I went a bit deeper into the throttle and bit further down track. The car really drives nice. It goes very straight and feels very comfortable even when it unloads the suspension at the big end. I am very impressed with the Brakes, they work really well (which is just as important if not more so than going fast)!

This weekend (if it does not rain us out) we are going to nail the burn out and get a really good routine set for the process etc. That will take care of most of the traction concern etc. We are going to continue soft launches and faster passes but before the end of the night we need at least one pretty hard pass to get a good read on the plugs. Hopefully that will give us a good idea where we are on the fuel curve. Then the next time out, hopefully with a "decent" tune in it, we will start thinking about how to make it launch etc.

We are taking the process crazy slow. Much to chagrin of the fans at the track!

 

You may want to slip stripe and whitewall the rear tires with shoe polish so that it is easier to get a visual read on what is happening at the hit.

Roo

 

That's a good idea ESPECIALLY since the Meltdown Drag guys FORCED me to take the white letters off my slicks...! ....Just kidding Jeff , I love the tires without letters. But a good idea non-the-less, I will dig the old white shoe polish out this week!

 

Out and gone early this morning with high hopes of burnouts in the parking lot and maybe a few launches before we head back to the track next weekend.


I have been worried about our tune with the super charger (being fairly novice in arena). We had decided last night to hit the parking lot, read the plugs and see where we were. However after talking to a good friend at the Friday night cruise-in yesterday he warned me that E85 burns extremely clean so checking the plugs may not really give me a accurate picture of what is going on. He recommended something that several other guys have said, O2 (oxygen) sensor system.

I came home and hit the internet. Before I gave it up for sleep last night, I decided that was the only safe way I was going to be able to know for sure where we were on the whole fuel mixture curve. I called my buddy at the performance parts store first thing this morning and believe it or not, he had one on the shelf.


After reading the instructions we marked the header for the perfect spot. Then we took it off, drilled it out and welded in the supplied bung for the sensor. We made pretty quick work of it and in just a few minutes had the header back on and the sensor installed. We ran all the wiring right quick as well and mounted the gauge just under the gauge cluster that was already in the dash.



After it calibrated itself, it showed about a 12.7 to 1 ratio at idle (admittedly the idle is still up a bit, around 1500 rpm).
I am struggling to understand exactly what that means at this point. There is very little information out there to help decipher if that is good or bad, but at least I a number to work with and that eases my mind a bit.

 

There were a couple of other goofy things that caught us today. One, the car is running very hot. I know a supercharged car etc. will run a bit hot but it was getting to 200 degrees just idling for a few minutes and then 220 plus while doing a burnout or two. So each time (same as the drag strip last weekend) as soon as started edging up there we let it cool down for a while. However it never puked even a drop of water in the over flow tank. So we fired it back up a bit later and it got to 200 pretty quick. However my laser heat check gun said differently.

While the gauge said 200 plus, the intake water jacket said 178. Even after it got to 180 and the thermostat opened, the gauge kept going up. It was reading 220 but the aluminum thermostat cover was only 195. When the gauge was reading nearly 240, the front of the heads, according to the heat gun were 207. I left it running about 1500 rpm for while. The temp gauge buried the needle but the front of the heads never made it over 215.

The other heat issue is the headers. Man they are putting some serious heat into the engine compartment. The top of the front fenders (where you lean over to mess with things) was 165 degrees while the car just sat inside the shop. That is not helping things either. I am thinking about wrapping them to see if I can help this situation a bit.

Also on the goofed up gauge front, I checked the fuel pressure gauge early this morning just to make sure we were getting enough fuel. It read 3.5 to 4 pounds. So I adjusted the regulator and got almost to 6. Then we make a test run. I got on it pretty hard with air breathers off and it was like the fountains at the Bellagio out of the top of those to carbs. I whipped it back in and the gauge (which is inconveniently place on fuel rail to the side of the carbs and not visible from the cockpit) was reading two pounds. So obviously it had shot craps as well.

 

12.7 at an idle isn't to bad for gasoline. But for a moonshiner seems real low. Appears to be running allot lean. Also seams to be running hot for a drunk. But my experience is with drag cars. So if it wasn't blowing raw fuel out the pipes, it wasn't running right. That's why I asked about your carb guy. It's an all new arena for me also. With injectors, just dump fuel til it runs good, then dump a whole shit lode more. Can't be much be different on a street carb engine.

 

I thought 14.7 was the magic #

 

14.7 to 1 is. when crushing or part throttle driving with gasoline.... WOT is closer to 12 to 1 on gas. But E85 is whole different animal you need to find someone with experience with that type of fuel.

 

That is the perfection one would need in a fantasy world where conditions never change etc. For a strip or street car especially supercharged like brand apart said closer to 12 wot is much safer.

 

Yes it is in land of Oz. But that's never gonna happen on the street or track. That's why the nitro and alky guys dump fuel.

 

They dump nitro to a fuel motor because it's oxygen bearing.The more fuel you jam in,the more hp it makes.Thats why The Surfers were killing high dollar cars with their junk motor and 200psi fuel pressure.

As for the carbs spraying fuel all over the place when the air cleaners were off:
It's the airflow across the top of the carbs siphoning fuel out the bowl vents most likely.
Just cut a couple 8" pieces of rubber fuel line,trim a small vent hole in the middle on one side only,then slip them over the bowl vents like a bridge,with your vent hole facing up.Problem solved

Scott

 

I would call Mike at Alkydigger and ask what your ideal air/fuel ratio is for E85.He will get you going in the right direction.

 

Good suggestion. But "Makers Mark" fuel also has a lot 02. That is also the reason they dump that too. Bernstein proved it by running three plug heads. Made a "Jillion HP" but blew the engine to bits. Forgot about the cooling effects of "Nitro" and "Booze".

 

I'm thinking maybe 17:1 or 18:1. But I'm new to the "Rum Runners" game also. Ask the Brazilians. They been running pure booze for over 50 years.

 

This is "Deuced Up"s build thread. So lets not get into an argument on "Should', woulda, coulda". He's got a "KOOL" ride. Just try to help a "Brutha Out". But it still sucks! It ain't MINE!!!

 

Huh?
I'm not shoulda coulda woulda anything bud...you're the one who argued with yourself your last three posts in a row,leave me outta this.

 

??????????? WTF!!!!!

Roo

 

The best ratio for gas mixture is 14.7 parts air to 1 part fuel.
The best ratio for e85 mixture is 9.8 parts air to 1 part fuel.

The O2 sensor does not know how much air or fuel you started with. It only knows oxygen levels left in the spent charge. The O2 sensor reports in terms of lambda. If the lambda value is 1.0, the fuel is burned optimally, and started with the right mix. Whether you start with gas at 14.7:1 or e85 at 9.8:1, the lambda will be the same at the O2 sensor.

When you see a value reported from a wideband, the value is typically converted to a gas equivalent AFR. Some widebands (like the PLX) will let you change the display and show lambda, or show ethanol-equivalent AFR's. So, let's say your wideband is set to show gas equivalent AFR, but you are running e85. Cruising around, the display will show 14.7:1. This means the lambda is 1.0, and in reality your e85 mix is 9.8:1. When you go WOT, the wideband display shows 11.76:1. This means your lambda is .80, and if you are running e85, the actual mix was 7.84:1. (Narrowbands work in the same way, but we only see raw voltages).
Not sure if this will help you or not.

When you switch to e85, you have to tell the computer to increase the fuel delivery to make the initial mix 9.8:1. If you change the stoich setting in HPT, you must also change other fueling tables to make sure the calculations stay correct. (See this post for more info: http://www.hptuners.com/forum/showthread.php?t=31925). A simpler method is to tell the injectors to just deliver more fuel. This keeps all the other calculations correct, and only requires changing one table. The rule of thumb is usually to start out by telling the injectors to deliver 30% more fuel, and then tweak from there.

To run leaner at cruise, you must work around the fact that the computer is always trying to compensate off the lambda. If you just change injector values, the computer will still try to trim the fuel delivery to meet the stoich value in the closed-loop feedback. That is the big benefit of going all open-loop. You decide exactly how much fuel to deliver based on airflow, not feedback. If you want to lean out and stay in closed loop, follow the stoich changes described in

 

Somehow,I knew you were going to have more than just a basic understanding of this stuff James...

Scott