Well guys finally made the first hook of the year last night. Things went pretty well. Worked on it all day to finish up most of the details. Pulled out a second on the first run.
296.90 @17.9 miles per hour
The winner (another Ford) 300 even at 18.1
3rd Chevy 294.90 18.2
4th Chevy 289.7 17.8
5th Ford 260.9 14.5
The two other trucks in the class broke. A few more didnt make it because of engine or clutch issues or prior commits.

Here is the problem.

Left the line @7000 slipped the clutch for 50 ft. when off of it the truck took a dive to 5000rpms it did recover to 6700 rpm.

This is my drive train.
4.56 gears 35 BFGs NP435 trans and 205. 30-1 Final

When unloading this morning I noticed the brake dragging. In neutral it wouldnt roll off the Dove of the trailer. Should I fix the brake and see what happens, put 33s on or wait and see if a few more runs brings the combo on the new mill together a little better.

Oh ya it tanked at the very end of the pull.
None the less the first run was very promising, I hope to have a video to post this week.

Last Minute

Fix the brake!

Congrats on the finish.

Alan

The tire size shouldn't be a problem. I run the same tranny and transfer as you with 4.10's and 33" tires and don't really have any ppoblems with power.

Im going to fix the brake Alan.... Dad mentioned it earlier last week i just thought it was a little tight from the rust after setting almost a year.
I didnt think the final with that size tire would be an issue at all. I was really looking for alot more Rpm out of the engine than what i got, but in comparison to the other trucks that I run with I feel real goog about the track speed and the footage. Most of the trucks in my class are turning well over 8000 with alot less final than mine, however my speed is in the ball park.

Alan, when can we expect the first run to happen? I wanna see some videos man. Also, did you get the chance to talk to the guy I was telling you about???

6800 RPM's with that combo .. If you get it hooked and run 6800 You'll be tough to beat or in the top 5. Try to make the transition from slipping to totally in better so you don't lose that much rpm's, and you 'll pick up on the track speed some too ..
Other wise Great First pull Now get out there and Kick some A$$.




Dan

"Oh ya it tanked at the very end of the pull."


By the way it's not a bad thing if your motor comes down at the end of the track .. it just means the tires where really hooked good and they didn't want to give up. I seen guys let out of the gas just to have there tires hook at the very end of a pull to get an extra 2 feet some time






Dan

Thanks Dan I appreciate the advice. It was very nice to finally get back out on the track and make a good run.

"Alan, when can we expect the first run to happen? I wanna see some videos man. Also, did you get the chance to talk to the guy I was telling you about???"

I hope to have the stud running and ready for pulls begining June 26th. But that will depend on how much time I can get in the shop. As for videoing the pulls, that will only happen AFTER I learn how to drive the horsepower and torque of this new Briggs and Straton mill and hand throttle. I wouldn't want ya'll to see me make a fool of my self when I kill it on the line.. lol

Listen up ya'll. If you hear this briggs light up, you'll feel a chill of fear run down your spine, cuz you know "hell is coming to breakfast" and your on the menu... (sorry couldn't resist borrowing that movie line. anyone know what movie that came from?)


Alan

"Alan, when can we expect the first run to happen? I wanna see some videos man. Also, did you get the chance to talk to the guy I was telling you about???"

I hope to have the stud running and ready for pulls begining June 26th. But that will depend on how much time I can get in the shop. As for videoing the pulls, that will only happen AFTER I learn how to drive the horsepower and torque of this new Briggs and Straton mill and hand throttle. I wouldn't want ya'll to see me make a fool of my self when I kill it on the line.. lol

Listen up ya'll. If you hear this briggs light up, you'll feel a chill of fear run down your spine, cuz you know "hell is coming to breakfast" and your on the menu... (sorry couldn't resist borrowing that movie line. anyone know what movie that came from?)


Alan

sorry about the double post.

Alan,
You double post all the time man come on. Just messing with you man.

How far south are you coming to pull this year? I might have to load up and check this new motor out. I always heard a B&S could make alot of power but I have got to see it.

We'll have to see how things go this summer. I was looking at orvtpa's rules today but I can't meet a couple of their rules and they had a pull in Burlington KY that's like 3-1/2 hours away from me. Oh well! like I said we'll have to see how things go. We do have some pulls in southern Indiana, you could road trip it. LOL

Diesel's too blamed expensive to go too far this summer.

Alan

Can you refresh my memory on your combo ?? Seems like you should have had more R's with that final.
I'm running the same type truck it sounds like but my final is 27.195 @ my 4.10 I too run 35s and hit about 6800 last year. Hoping to see 7000 this year with my changes.
Congrats on your 2nd place finish. Not a bad place to start the year.

NP435 NP205 eaton HO70 Rear with 4.56 gears = 30.030 Final
35 BFG ats on 10 inch wheels full offset.
5500 pd truck 36 inch hitch height 60 inch front weight

460 .040 over
h beam 6.605 rods
ross domes 15-1 comp approx.
CJ heads 2.25-1.75
Solid Roller cam
1050 Dom
2inch 4inch uprights
Ford motor single plane
MSD 6T MSD Dist.
2 disc Ace

Pretty basic build just trying to get through this year and see what the new rules are going to be for this class.

Let me know what you are thinking if I can improve. I have to say that the truck hooks.

Th etruck that beat me was turning 8500 plus with a 27 final. As do most of the trucks in my class.

It's the 36" hitch hight. LOL


Alan

Dang I guess you got me Alan..
26" hitch height.

Without knowing your Cam specs. I definitely think you should be getting more RPM then 6800. It looks like you have a nice setup. One thing that jumps out at me is the MSD 6. I think it was late last winter or the first part of the season Dan was have trouble with his truck and we were all were talking and it came to light that the MSD 6 wasn't enough box for the compression he was running. I can't remember exactly what the line was that MSD recommend but I know after 14:1 that the 6a wasn't enough box. Maybe if you know anyone who has a better box you can borrow it and try it. Summit is now selling a box for around $165 that has alot more energy the 6A msd.
What about fuel. Tell us about your complete fuel system.
With 30.1 final and your setup I still feel you can find your missing RPM and wheel speed.

Fuel System

BG 280 electric pump, 1/2 fuel line going to big can filter (NAPA Brand it flows alot more than the pump can) 1/2 line going from there to a moroso fuel log then returned to the tank. Fuel log to carb is 3/8. 7 confirmed psi of pressure.
I am running Sunnoco 112 it is rated for 15-1 comp up to 10,000 rpms according to the spec sheet.

After reading the alt. post I am wandering if I have enough battery power, I am running everything except the power steering pump off of one big battery...

I am going to open the plug gap up from 35-40 and bump the timeing on up to 36 this weekend and leave the lins at 7500.

I am really still under the cam at 6500, it should turn up close to 8000 with the cam. Another truck with a very similar motor, was turning 8500 with 35s and an auto at 6000 pounds but the few times in the past we have pulled against each other at 5500 I beat him when I was running my old motor. So maybe its just the truck set up.

I would like to get another 500-1000 RPMs though.

You didn't say what fuel pressure you are running but your fuel system seems to be a good setup. You may be on the right track with the current flow to the MSD box and running the one battery.
If you can call MSD and ask them about your Compression and the box you are running.I'm sure your find out you are out gunning your 6A box.
I'd be careful on the plug gap. Most of what I have seen is the more comp. goes up the closer the plug gap is because of the chance of blowing the spark out.

Draggin you missed where he said 7psi confirmed.

I know everyone will argue on the alternator, but I noticed no difference last summer when I ditched the alternator. Also I'll point out that there are thousands of drag cars out there not running an alternator and probably as many pulling trucks, so they can't all be wrong. Also when I took the water pump, power steering pump and alternator off, I picked up an easy 500 rpm.

Draggin is right on the gap, I've read the same thing. More compression, less gap and ditto on the MSD.

I'm curious to see what goes on with my system this year as I could never get more than 7400rpm with my auto 4wd, but the gent that bought those heads and cam (and used the same pistons etc) turned 8300. Only difference is he has a clutch and 2wd, and I had an auto and 4wd.

Alan

Just wanted to throw my two cents in here...

My two pulling tractors don't run anything attached to the front of the engine other than the harmonic balancer -- no fan, no water pump, no alternator. I have a single battery on board, and run an electric fan and electric water pumps to cool the engine as it pulls. Typically run between 6,000 and 8,000 rpm on each motor.

Just to give details, the small block is a 350ci Chevy (we have a 375ci maximum) running on super unleaded pump gas. The big block is a 454ci Chevy (we have a 475ci maximum) running on super unleaded. No additives allowed in the gas and we are limited to hydraulic flat tappet lifters, steel connecting rods, max 4 barrel carb (no fuel injection systems). The only restriction on cylinder heads is no Hemi. Ignition system is mag driven.

As I said earlier, not a complete engine expert, but love to drive them with the front wheels about six inches off the ground!

You shouldn't have any trouble turning more with your setup. I ran about the same setup with a solid cam and smaller carb and turned over 8000. As for the 6 box running out I don't believe it. I have ran 6's and 7's. If I was buying new I would buy the 7 but if I have a 6 I am not gonna change. I am running a 6 on a bbc with 15:1 and turning over 8000 every pass at the moment. Have turned over 9000 with one in the past on a BBF. Nascar runs them every sunday and they don't baby those motors. As for the alt I don't see a pro or con but I have never ran one and never had any problems keeping juice for the msd box.

Tad I'm just trying to throw out some suggestions and if maybe one of them helps Last Minute that is great. Nothing I have suggested is written in stone or a guaranted fact.
If you're having good luck with a 6A box that's cool, and you make a good point about the Nascar boys. But you need to check their engine specs. Because they are no where near Last Minutes Compression. And if you where to look close I bet you would see that they have 2 6A boxes mounted up so if and when one dies they can easily swap over to the back up box.
Like I said earlier what would it hurt to "borrow" another box from someone to try if he knows someone who he could get say a 7A from. He won't know for sure until he tries. Or just make a phone call to MSD's Tech line.
Anyway. Good Luck Last Minute. Let us know if you make any progress.
PS. I would think about maybe uping the Fuel Pressure to allow for any drop in pressure once the motor is at full load going down the track. I like to run 9psi.

Thanks for all of the advice guys i am going to try a few things and see what happens.
At least all of the suggestions made me think about a few things that might help

you had said approx. 15:1 comp. ive seen guys run to big of a carb thinking thats what they need to run over 8000 rpm and wonder why they were only turning 6000 rpm. most of the trucks i pull with run 4150's . and turn over 8000 rpm. i would try running your fuel @ 9 psi.

I don't think you should try 36 degrees timing,that is too much. My motor has Ross domes and CJ heads also and I use Sunoco 112 and run 32 degrees total timing. I also suspect the carb, maybe to rich. I have to run a SCJ cast intake and a 4150 carb and my motor turns upper 7,000 every pass and will turn 8-8200 on a loose track with a light sled.

Dennis

I also run 9psi fuel pressure like was suggested above.

Dennis

Richard, In your post above you stated 2 inch primaries on the headers. Is that correct? I would suggest 2-1/8" or even 2-1/4".

Alan