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Messages - hemidakota

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31
Matt Shaff's Engine Shop / Re: dry sump systems
« on: October 21, 2018, 04:47:30 PM »
So I gotta ask, Paul how much vacuum do you see in the engine? Coupemerc you have a very different set up, how much vacuum do you pull? I worked at weaver brothers as a kid and dry sumps pulled crazy vacuum back in the day but now a days it is not the same. I only want 10 to 12" unless I am missing something. I am not looking for every bit of power as for I am going to have to slow it down to do what I want. I just want to go over 200 mph some day.

32
Matt Shaff's Engine Shop / dry sump systems
« on: October 17, 2018, 08:44:13 PM »
So I would assume there are a few members here running dry sump systems. I would like to see pics of how everyone is doing it. I just pulled the trigger on a dry sump system for a few reasons. Mainly due to my heads having terrible oil return. At this point I have invested a lot of money and want to keep it happy for many years to come. I got a Peterson 5 stage set up, 3 from the pan and one from the top end is my plan. Thanks Greg

33
Roo Man's Room / Re: New front half
« on: September 21, 2018, 09:21:40 PM »
Bruce Dyda did mine, very nice piece and easy to deal with. Great guy.

34
Spud Miller's Cave / Nozzle holder air bleed holes
« on: September 07, 2018, 07:53:18 PM »
I have a question about nozzle holders and the air bleed holes in them. This is not a typical system. I have been messing around with Waterman/Mitchell injectorator systems for a while. The waterman nozzle holders have two 1/8" holes in each nozzle. Last time we ordered a nozzle holder it had no holes in it, Waterman told me they are not necessary. We ended up drilling the holes to match the rest. Well for many years we fought high idle rpm due to how much air they pull in. It is a throttle body deal with accelerator pumps so you can run the idle lean and have no stumble. Well a few years ago I taped them off for an idle only test. Low and behold we could adjust throttle body and make idle speed below 2k rpm. Well my father has the same system on his engine and I talked him into plugging the holes. Now the idle circuit is much easier to tune in my mind. It was tough to not be very lean on the idle circuit before, now is much more adjustable. The question I have is now I have been told in a N/A engine the holes are there to atomize the fuel delivery better. Is it really that important or can we just run the system as it is? At one point we had a mix of nitro that was told to be 10% but the crackle it had made me think it was more, the problem I had was I could not give the motor enough fuel at idle to keep the lean chirping to go away. Nitro guys will understand. I have not put the same mix back in the motor but I think it would be much happier with the plugged nozzles. So do we need the holes or can they stay plugged? The nitro deal was just fun but maybe try it again someday when the tune up is figured out. Sorry for the long post but I would like everyone's opinion of what is right and wrong. Thank you Greg S.

35
Front Engine Dragsters / Re: Injected FED's launch rpm
« on: August 30, 2018, 07:02:41 PM »
Sweet pic Greg,  I think I might know the guy in the blue dragster behind you in the staging lanes... Wow I think the hardest part is going to be finding the right air pressure in the 15" wide slicks and not setting the wheelie bar too high. We worked with 14 x 32 slicks for some time and could only run 5 to 5.5 psi in them or it would dead hook and put the wheelie bar to the test. We changed to a 33 x 10.5w M/T with no tubes and shaved like 20 lbs per side and the dragster picked up a bunch in the 60'. It was a 565 BBC injected alky deal. Good luck and most of all have Good Times. Like Greg said the launch rpm effected the RT more than anything and he has way more passes than I have by a long shot.

36
Hemi Dakota, I had 7.5 lbs in them. I would have tried adding a pound or 2 but had forgot the air tank at home

The Dragster I have worked on and driven for years is a 185" mild steel fed. 565 bbc injected alky. We had to run 5 to 5.5 psi in the slicks with bar at about 2" to make it work and yes 33 x 10.5 m/t slicks. I am no pro but the higher pressures on a well prepped track killed us every time FWIW. 6200 converter also. It would 1.13 to 1.15 in 60'.

37
What air pressure in slicks?

38
Your Builds / Photo Gallery / Re: Ed Mabry 71 Jr. Fuel
« on: July 17, 2018, 10:01:01 PM »
Belly pans still oil the track when it breaks, run a diaper. Been there done that... Sorry John but it is true for everyone. Had the safety guys at famoso yell at me when I was just with the team at the time.

39
Roo Man's Room / Re: Cutting and butt weld upper frame rail
« on: June 15, 2018, 07:04:39 PM »
Paul when my dragster was certified, I could not get a 6.0 cert due to the sleeve not being past the front roll cage tube. I had to weld up right tubes behind the front roll cage tube from the upright tube behind the roll cage that was between the upper and lower frame rails. I hope this makes sense. Next time I am at the shop I will get a pic of what I had to do. Kinda sucked due to chassis having a 6.0 cert on it when I bought it. The inspector drilled a hole in my upper frame rail to check it and yes I was kinda pissed about the hole but it is what it is.

40
Spud Miller's Cave / Re: Historically Speakin'
« on: May 11, 2018, 12:21:54 PM »
http://www.frontenginedragsters.org/forum/index.php/topic,1040.msg7350.html#msg7350

This was from a while back when we started with an injectorator system. It was a learning curve but worked out well.I know a few people with them now and they all like them.

41
Front Engine Dragsters / Re: Some basic simple questions
« on: May 08, 2018, 10:14:01 AM »
Very cool fed... When we stopped bolting tail shaft to chassis, we stopped wiping out tail shaft bushings and stopped breaking stock cases fwiw.

42
Matt Shaff's Engine Shop / Re: New Keith Black block
« on: March 19, 2018, 06:53:11 PM »
I got my block today, very happy... Will post pics of what I am doing very soon.

43
Spud Miller's Cave / Re: Dripper for warm up
« on: March 17, 2018, 07:57:19 PM »
I saw a nitro fed at the hot rod reunion with just a primer bottle and a looped 1/8" hose with 8 tees and 8 short tubes that hung on the stacks. Just held the bottle up and let it run until almost empty then turned on the fuel, was a very simple set up and I am sure there was a learning curve but it worked well. One of those things I should have took a pic of.

44
Matt Shaff's Engine Shop / Re: New Keith Black block
« on: March 12, 2018, 12:14:11 PM »
KB has been bought out and they are now doing the work in Michigan, unless Ken Black starts doing stuff on his own I do not think there will be anything but blocks being built. The block was loaded on a truck and shipped today. I should see it in a week or so and I will post more pictures.

45
Front Engine Dragsters / Re: wheelie bar
« on: March 11, 2018, 06:34:37 AM »
That tire size is going to be tough, we did the 14 x 32 tire for a while and if track prep is good I would start with a very low pressure like 5.5 psi and creep up from there, keep the bar low until you find a happy tire pressure to work with. If you look at ntf they only use a 13" wide tire...

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