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Finally in the 11`s


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#1 502ci

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Posted 12 August 2006 - 08:11 AM

Went to the dragstrip last night and finally hit the 11`s, several back to back 11.95`s, car normally runs 12.03- 12.04`s.

I won`t give credit to my fuel upgrade (I do not believe this had any effect on the E.T. because mph was the same) and I kinda figured that it wouldn`t, it was installed for future upgrades.

I`ll give credit to my new lighter front wheels and tires, also 70 degrees outside.

60 ft times increased to 1.57 from 1.65 eek


Bill
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11.80's at 114 mph, 0-60 in 3.34 sec.____
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#2 7tonemonte

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Posted 12 August 2006 - 08:15 AM

Very cool Bill, congrats on that. Gotta love them cooler nights!
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#3 502ci

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Posted 12 August 2006 - 08:46 AM

Another cool part of the story was when I stopped for gas 8 miles before the track at a main intersection off the highway. While pumping gas three guys came over and starting talking to me about my car, they were all from Norway.

They were telling me about their cars they had back home, one had a blown small block 37 chevy running 11.92, another had 69 camaro running 10.30`s, and the third guy had a supercharged 91 vette but didn`t say what it ran, but then he was the hardest to understand.

They asked why I was driving with slicks on, I told them I was heading to the track.

They startng getting excited, they were heading to Columbus Ohio for the Mopar nationals (I think that`s what he said) and asked if they could follow me to the track. I said no problem.

They are driving in a rented cadallac escalade, and wanted to race it. laugh

So at the track they are taking turns driving it with a bet the loser has to buy the beer. These guys were pretty cool, eventually the one guy is ripping the air filter out hoping to go faster lol .


Bill
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#4 Heckeng

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Posted 12 August 2006 - 01:16 PM

Sweet! That's a good mark to hit. Eventually, my goal also, because I don't want to put a cage in the car, and I think NHRA mandates that at 11.99 and faster, you need one don't they!

congrats!

502ci, AFR 265's, Demon 750, Air gap intake, Straub custom cam, TH350, 3800 Edge converter, 3.55 12 bolt.

#5 502ci

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Posted 12 August 2006 - 03:11 PM

They lowered it to 11.49 and faster, then you need at least a 5 point roll-bar.

Roll cage at 9.99

smile

Bill
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#6 Sam (Bones)

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Posted 12 August 2006 - 03:58 PM


Sam


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#7 Sam (Bones)

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Posted 13 August 2006 - 06:45 AM

Bill,
a victor jr intake should get you a little more, and have Don work it first, bummer, I just sent one back too
Sam


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#8 502ci

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Posted 13 August 2006 - 06:57 AM

I`ve been looking for a new intake, what does Don do to it?

Also I have to make sure that manifold is the best one compatable for a centrifugal supercharger.

cool

Bill
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#9 Sam (Bones)

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Posted 13 August 2006 - 07:02 AM

you're at the point where you need a single plane, I don't know about the huffer, Don told me to use the jr with the edelbrock heads, your heads on the 502 ARE edelbrock heads if they are the alum, do you have the square or oval port

he matches the intake ports to the heads, and can "port" the hole intake
Sam


70 & 71 montes

#10 502ci

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Posted 13 August 2006 - 07:21 AM

Aluminum oval port 110cc.

The heads are stamped GM Performance Parts.

Your saying edelbrock makes them?

Bill
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#11 Sam (Bones)

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Posted 13 August 2006 - 07:43 AM

positively, the edelbrock ovals have a port that is bigger than a oval and smaller than a square, he can make a jr match, I bet you'll impressed with the results of a intake swap esp on the big end, different heads would sure wake that puppy up too!!!

that's why I switched
Sam


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#12 502ci

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Posted 13 August 2006 - 07:59 AM

$$$$$ eek

Got to draw the line somewhere, so new heads are out. frown


laugh

Bill
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#13 Sam (Bones)

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Posted 13 August 2006 - 08:20 AM

heads are cheaper than that huffer lol

and you can sell the other ones
Sam


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#14 mc71454

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Posted 13 August 2006 - 09:51 AM

Congrats on reaching the 11's. I was running 11.30's with an RPM Intake (non-airgap) with a 468 motor and 3.55 gears on 93 gas.

After doing very careful testing over several months and track rental days between a Vic Jr. and the RPM, the RPM with a 1" open spacer was the quickest ET wise and was a far cry better for street driveability.

There many many cars under 540 CI that run RPM intakes into the low 10's.

If you post up your timeslip data, I could analyze it and give an opinion if you are interested.

Again, Congrats !!!!!

Tom Baird - '71 Monte - NA, 10.310 @ 129.86 mph, 3950 pounds, 3.73 gears, pump gas driver
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Posted 13 August 2006 - 10:27 AM

CONGRATS BILL !!!!!!! 11'S..... NEXT THE 10'S laugh

I'm stuck at 12.90's for a while but that's Ok...for now. wink

OH NO!!..........HERE COMES THE SMALL BLOCK COMMENTS.......... :rolleyes: lol lol

#16 502ci

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Posted 13 August 2006 - 10:50 AM

Here is my timeslip data...

My 1.57 60 ft. was a mistake frown or I can`t find that one timeslip, either way it wasn`t on my two 11 second runs.

60 ft. ---- 1.640
330 ft. --- 4.853
1/8 ET ---- 7.606
1/8 MPH --- 89.10
1000' ET -- 9.951
1/4 ET ---- 11.959
1/4 MPH --- 112.20

The other 11 second was almost exact as above.

smile

Bill
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#17 Heckeng

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Posted 13 August 2006 - 12:20 PM

They lowered it to 11.49 and faster, then you need at least a 5 point roll-bar.

Roll cage at 9.99

smile

Looks like I have a new goal in that case! smile That makes me very happy!

Tom, what kind of work to they do to the RPM intakes to make them run in the 10s!!!! I would have not guessed that one!

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#18 72 LS5

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Posted 14 August 2006 - 02:54 PM

Congrats 502!!!!

Breaking into the 11s must be a great feeling! That's my goal... wink

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Posted 19 August 2006 - 08:09 AM

Bill, boosted app's typically don't work well with a dual plane. Torque on a boosted app come from the boost not from the design of the manifold. Go with the single for a future boosted app.
I am not trying to start a string war here over manifolds but look around on the web sites at the high powered crate deals out there and find me anything over 500 hp with a dual plane or an option for a dual plane. These are sold by companies that survive by selling proven consistent powerful packages.

I have done many tests myself over the years with all different make of manifolds, to the point of designing custom cams for the dual planes with the guy's at comp,crane,lunati,ultradyne etc etc. Never could make the dual plane deal outperform a proper single plane combo when the goal was 500+hp. OK you say what about track testing? Glad to say way more than most have ever done, we had a Ex Warren Johnson firebird pro stock car to test with as part of my job!
My job was to develope and test engine packages to be sold in crate form by a very big name shop in the crate engine /race engine leasing game. The shop I worked for was contracted to do the development work so his guy's could have time to maintain his lease stuff. I did most of the , hey we need a (x) ci package with (x) hp & tq at or under (x) rpms.
The owner decided to retire, the shop was sold
and is now a import car repair facility!! That sucks! So now I work for myself.

I know most of everything is based on displacement when it comes to parts recomendations, so lets break it down to a ci per HP deal. I can and have built 2 Hp+ per cube combo's average is 1.0/1.25 hp per cube for a home built deal. Look at MC71454 (tom) as a reference, quessing at a 3500# weight his et would require in the neighborhood of 600hp at the wheels and 650/675 at the fly wheel depending on the drivetrain losses. Thats 1.2/1.25 Hp per cube, thats good for a homebuilt combo. If that level of power per cube combo were applied to an average 468 ci engine,that would make that builders understanding and ability to set up a combo, produce a 562 hp 468.

Now lets take a different approach and look at a proven 757 Hp /670 ftlbs 468 ci 6500 rpm peak combo on 94 octane pump juice. Thats 1.62 HP per cube, on a street/strip combo. This shows the diff in builders abilities to make power. Granted this combo required a cam not generally availible to the average builder. Not belittling anyone here, Tom is a master tuner, he has tweaked and tuned just about everthing he could get from his current combo. Tuning ability is a must on any combo, if you can't tune it then it won't perform to it's best capability!

In the end the choice is up to you, look around and see for yourself, the people that make their living at building these deals 99% prefer the single plane. One or two guys here or there that have had better luck with their home built personally selected combo's that have better luck from a dual plane dosen't mean they have found a secret power combo that the pro's have over looked!
Don

#20 502ci

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Posted 19 August 2006 - 10:03 AM

I`m already convinced that it will be a single plane, Sam is suggesting the Victor Junior. I`m assuming you suggested and modified that one for him.

Is that one the best for me, with my crate 502 and that F2 supercharger that I talk about all the time?

I am also aware that I need a custom built blow thru carb.

Whenever you have the time I appreciate the input.

Bill

laugh

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