Messages

61

Front Engine Dragsters / Re: First test session with new setup

« on: February 21, 2023, 02:46:13 PM »

If rollout differs. I was told and found true.It is easier to shrink the larger one than it is to stretch. Not say both is bad idea. To shrink, Drop ppressure tp almost nohting. Heat the tire.I use blow heater and rotate avery few minutes. Let sit. Then pump up tp pressure and measure. On a fuel car we drop pressure if car is going to be siting for long period. We also do not pump tires to stupid pressures for loading either since it will stretch rollout some.  All of that said it is just another approach and may or may not work better for you.

62

Spud Miller's Cave / enderle nozzles to drop in

« on: February 05, 2023, 08:38:17 AM »

So changine my old Enderle nozzles to drop in. few reasons,mainly work with few TA/D trams running A/Fuel and everyone using them. Just makes sense to have compatible stuff in box.Makes sense but not dollars.

  Wondering if anyone knows the flow difference.I have read that drop in suff normally flows 10 to 15% more. One or the other easy to figure .Huge difference in 10 or 15.

63

Matt Shaff's Engine Shop / Who builds own engine

« on: January 17, 2023, 09:28:33 AM »

 I have noticed that majority of racres seem to buy engine instead of build themselves. Now nothing wrong with that and my be better in log run.

I know when I started racing in 1985 there was two or three guys who bought enignes and the rest built or had abuddy who did. Now days it seems almost the exact oppisite. For me if not for building engine and most of time the whole car I would not have much interest in racing. I actually enjoy building and tuning more than driving. driver is just there to prove tune up works and engine makes power. LOL With that said I was told long time ago by Alan Satrr never put brains,talent and money in one spot. I have obey that few times but broken more.

Wondering since mostly older racers here. How many build your own engine,trans,rear ends ,chassis and or combo of?

64

Your Builds / Photo Gallery / Re: Jr dragster chassis

« on: December 19, 2022, 04:34:47 PM »

Looks good. building yourself should save some cash and be better piece to boot. CM over mild steel is no brainer.Any weight shaved with smal motor is huge.

65

Spud Miller's Cave / Re: under driving a pump

« on: December 05, 2022, 01:41:17 PM »

I have chart for one pump and total flow of other pump. Easy enough to know flow of one with full chart. Now that I have had 3 or 4 confirm that it changes same as drive change I know what one with just total flow number will do.

Have a fuel flow sensor for data logger coming and think I can convert it to use on home made flow bench. At least readings will be the same as what I get when it is on car since it essentially the same piece as long as rpm matches.

66

Spud Miller's Cave / Re: under driving a pump

« on: November 27, 2022, 11:13:51 AM »

From what I can gather it runs pretty linearly. A 10% reduction in drive equals 10% fuel. Now that is generalization of about 10 pumps out of my Gorr sheets.  Hoping for input from anyone having done it real world not calculations .

 

67

Spud Miller's Cave / under driving a pump

« on: November 27, 2022, 07:51:48 AM »

Is anyone running a mech. pump with an under drive. I have a 7 GPM pump on the car now. NA 482 ci. Sin ce bypassing about half the fuel I was wondering about underdrive for pump bypass less and running at lower pump rpm has to be easier on the pump. Now how to figure fuel system. Using Spud's calculator. If use 10% drop in fuel flow I have chart that shows it looks like would expect. How accurate with a lot of assumed and no real flow bench info?

68

Jon's Wheel House / Re: GY 2070 and 2078

« on: November 10, 2022, 08:26:07 AM »

The big bubbas are very popular with RED guys,not sure I have enough power to pull that tire on FED. I know FED's normally get down track better with less tire than a rqual power RED needs. Being a bracket car I have to be more concerned about consistency than fast. As life long tuner of heads up not putting fast first and foremost is hard as xxxx.

69

Jon's Wheel House / Re: run around system build

« on: November 10, 2022, 08:20:13 AM »

What kind of temp did you have and what was drop in temp. If running hi/low and leaving in high I have been told it is big time temp, Asking because I have another idea that should work but costly trial and cuss if don't work idea.

70

Front Engine Dragsters / Re: Partnerships for racing operation

« on: November 10, 2022, 08:16:55 AM »

This deal is more of money to cover cost type . He does want name on carf so can deduct as promotional, xxxx just common sense there.  He laughingly said letting him work on the car is not the best idea unless needs a bigger write-off.. Reason he offered up was knowing my history of racing hard nothing held back and winning is what counts. Also stated that if nothing else I do out on a show. My comment like smoking and bandit.I do what I do best show off.

Whi;e I agree everything ikn writing best. How do you write up you own nothing and who wants a record of one getting any money if using the deal as a tax deduction? Plus most I can see happening is money getting cut off and that probably require stupid on my part. I am making list of what to expect and at what level cost will go up like big money bracket race(example).

71

Jon's Wheel House / run around system build

« on: November 09, 2022, 05:18:37 PM »

Looking at a site on run around system for trans cooler. Looks pretty simple. You tap into passage tha allows cirulate thru converter. .. I am thinking about doing one with a fan mounted over old ac coil and using 12 high pressure fuel pump to pump fluid from pan thru coil with fan and thru conveter back to pan thru system. Is there a rreason I am missing that this will not work same as high dollar system with everything mounted on car? Using quick couplers and doing it in this manner would save weight and take a minute or less to hook up. It could be taken to staging if needed and used while in line if needed extra cooling

72

Front Engine Dragsters / Re: Partnerships for racing operation

« on: November 06, 2022, 02:52:37 PM »

pm sent

73

Front Engine Dragsters / Partnerships for racing operation

« on: November 06, 2022, 07:41:25 AM »

Figure a few here have had or do have a partnership race deal.

I have a fellow wanting to possibly do a deal where he supplies money for entry,travel and some of the cost for running car. I supply car trailer, truck maintain car,parts for car. He wants to attnde some races and work on car some and get company exposure so it is tax write off too of coarse,


While I am not craZY ABOUT IT IT WOULD CLEAR ONE obstacle of running the car more and allow me to get some parts I want for the car and a few backup parts. I think keeping ownership of all parts and pieces seperate is a plus in case shyt happens.

If you have had a partner in racing good or bad lets chat some. If you have not your opinion will be taken at face value to speak

74

Front Engine Dragsters / Re: 7.0 and nitro

« on: October 24, 2022, 03:21:43 PM »

If I was running 400 mblock with alky I would fill the block and forget about it. With alky there is no need for water in block and if wanted to run water thru heads short iff it just enough to allow ater flow. I have never run WATER IN ALKY MOTOR.  JMO

75

Spud Miller's Cave / Re: new nozzle?

« on: October 17, 2022, 07:52:48 AM »

 iI agree you will have less pressure and I use to worry about keeping pressure around 150 psi. Found out with injected alky its not huge deal. Have seen really high pressure systems run exactly same as low pressure(below 100 psi).