HA/GR in Minnesota

[Old Jimmy Six]

I would go to at least half of your cubic inces of the engine for the plenum and make sure there is no V in the bottom below the level of the intake runners because fuel will puddle there at idle and flood out the engine when you hit the trottle on take off. Lengthing the runners is a good idea, I asked a guy who builds sheetmetal intakes and he said 13 inches from bottom of valve to bottom of carb is good for 4500 to 6500. Make it longer and the power comes in at lower rpm. My intake is built on that principle and it is like you hit the nitrous button at 3500 rpm.

[jeff/21]

what OLD JIMMY SIX said and on the intakes I built they had 1/2" radius entry.length is measured from the valve which includes the port in the head

[Old28]

Bob, Thanks for posting the intake picture. (Old Jimmy Six) had passed that same information on to me a few weeks ago. I can see from your photo that the changes you are talking about would really improve your overall intake system. The headers look real nice and should make a big difference in performance. You may have to add a third carb to the setup.

Looks like 12.50's in the future.

[bobw]

I've been digesting all the intake information provided by you experienced racer/builders and comparing it to what I have now. Still weighing some alternatives. I took the intake/exhaust contraption to Jerry the Sandblaster today so it will be clean & easy to modify.

Also cut these power rings out of 3/8" flat stock with hole saws. How they fit the program will be shown later.

But the most important thing I did today was vote for Toymaker's Evil Twin.

[bobw]

Got the doors back today for my '40 Plymouth Pickup which will be used to tow the dragster.
That's real paint applied by a real sign painter.

[64 DODGE 440]

Cool! Now all you need is a sponsorship from a local gas station or speed shop.

[ThingyM]

Bob,, I love your header concept.. I bet that will make that slant sound pretty darn cool..Never did like the straight pipe look. Pipes need kinks in them..LOL..

[64 DODGE 440]

Originally Posted by ThingyM

Bob,, I love your header concept.. I bet that will make that slant sound pretty darn cool..Never did like the straight pipe look. Pipes need kinks in them..LOL..

Always knew you were the "kinky" type.

[Old28]

Bob the doors look great, can't weight to see them on the truck. I agree with Tom on the sponsor. Old local gas station or local speed shop, maybe on some half high wood bed side boards.

Looking forward to were you are going with the intake modifications. You may need to run three 2bl carbs to keep up with the intake & exhaust changes.

This spring will be fun going to race or T&T with the truck/trailer/race car. Will get some good thumbs up on the freeway.

[Joe Hamby]

You know that we will want pictures of it all hooked together.

[CrkInsp]

Here is a pic of the headers the Senile Old Men built for thier Slant 6.

[bobw]

O/T, I know. Didn't want you all to think I have been slacking. Just finished all the welding on the chassis for my street/drag/autocross Fiat. 187 pieces welded together. Some are even in the correct location.

Yes, sure would be nice to have a real sponsor or two. They wouldn't get much for their money though. I've offered free space on my dragster and got turned down!

Yes, those senile old men do nice work. This senile old man working alone can't compete. Hope to see that car in person some day.

[OBFB HA/GR]

Hey Bob, had the pleasure of meeting those guys in person last August, there car is a true work of art, everywhere you look there is true talent showing through. I guess that comes from their shared lifetime of expeience. Nigel.

[mudflap261]

hey bob one guy working by himself doing all that cutting fitting and welding has got to be perrty slick. looks perrty slick to me . haveyou ever set down and figured out how many lineal feet of welding that is ,probly scare you to death looks good bud

[bobw]

I cut those 3/8" thick rings, shown above, in half and welded them to the intake runners at the plenum wall.

[bobw]

Doing that provided enough "meat" so I can radius the inlet from the plenum to the runner. Should give the air/fuel mixture a smoother path to the engine. Experts, is that enough radius on the left port?
Mudflap261, Got at least one spool of MIG wire in the Fiat project.

[Old28]

Now we see what those rings were cut for. Nice idea and the radius looks real clean. Not being a builder I would have no idea if the radius is correct, but it would be fine if I was doing it.

Bob is the air box around half the cu in size of the motor or will you have to add a spacer to the top rail?

Really looking forward to seeing the truck/trailer/race car hooked up. I know that is something you will be proud to be cruising down the road.

[bobw]

You're right Tom, I need a spacer. Only about 1/4" to achieve the correct volume. Might go a little thicker if it won't hurt.

Been watching Eagle Field races thanks to your kindness, sending the DVD for free. Thankyou. Lots of great HA/GR runs on there. A good motivator.

Yeah, I'm pretty stoked about having the truck, trailer & dragster together. Only problem is the owner/driver is about 5 decades too old.

[Old28]

Bob, I think this is one of those places were "bigger" is not "better", but I am not sure.

Glad you like the vidio, pass it around to some of your street rod friends.

At our age we are just glad to be up and moving each day, someone's got to keep cars of the "past" in the forefront of the sport.

[Old Jimmy Six]

Bob, you can use epoxy or that old favorite JB Weld to create a smooth transition from the floor to the ports. Your idea is great to give you some meat to work with.