Author Topic: new experiences - my 225" fed  (Read 6015 times)

Offline denverflatheader

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Re: new experiences - my 225" fed
« Reply #45 on: July 07, 2018, 08:21:08 AM »
noslin - your sheet metal work nicely done, takes skill for it to look and fit right.  Plus locating dzus fasteners to align front to back and match flow.  Hand crafted foot pedals very different look, was good idea and turned out well.  A+ on tranny purchase, excellent buy waiting for right moment.  Alan

p.s. on dzus placement, Iíve seen some where dzus located such that rear wheel has to be removed to gain access; slight delay removing panel.
« Last Edit: July 07, 2018, 10:33:10 AM by denverflatheader »

Offline noslin

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Re: new experiences - my 225" fed
« Reply #46 on: August 25, 2018, 09:01:18 PM »
noslin - your sheet metal work nicely done, takes skill for it to look and fit right.  Plus locating dzus fasteners to align front to back and match flow.  Hand crafted foot pedals very different look, was good idea and turned out well.  A+ on tranny purchase, excellent buy waiting for right moment.  Alan

p.s. on dzus placement, Iíve seen some where dzus located such that rear wheel has to be removed to gain access; slight delay removing panel.

Thank you sir for the complements, they are much appreciated.  trying to think/figure out how to do the front end tin.  shaping the nose will be interesting.

so i finished plumbing the fire system in the driver compartment.  i have no idea if it is acceptable or not.  so input would be nice as i can change it.  i put one pointing up at the torque convertor, one down by feet pointing kind of upwards and one at the steering thinking it would get the crotch area and hands; more crotch area.  i have never seen fire system work so im just guessing how the nozzle spray and also guessing what kind of force they may put out which would affect spray pattern.

thank you
Dean














Offline Oldboy

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Re: new experiences - my 225" fed
« Reply #47 on: August 26, 2018, 04:49:06 AM »
Mmmm. Nice work, especially love the seat pan, how'd ya do that, in awe.

Offline jeff/21

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Re: new experiences - my 225" fed
« Reply #48 on: August 26, 2018, 04:21:39 PM »
nice work!

Offline noslin

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Re: new experiences - my 225" fed
« Reply #49 on: August 26, 2018, 06:21:54 PM »
Mmmm. Nice work, especially love the seat pan, how'd ya do that, in awe.

oh, the chassis builder Bill Comstock did the seat pan.  he was going to use a carbon fiber seat but due to me being so tall he had to make aluminum one.  i think the CF one is 90 deg (guess) from back to seat and i think this one is probably a tad tighter, so the CF wouldnt work or fit correctly.

Offline THE FRENCHTOWN FLYER

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Re: new experiences - my 225" fed
« Reply #50 on: August 27, 2018, 07:42:41 AM »
I am also quite tall (6'6") and do have some back pain issues. When I had my chassis built (Advanced Chassis, Antwerp, Ohio) I took them a plywood template of my back in the seating position with appropriate lumbar support built in. It is very comfortable.

Offline noslin

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Re: new experiences - my 225" fed
« Reply #51 on: August 27, 2018, 04:50:26 PM »
I am also quite tall (6'6") and do have some back pain issues. When I had my chassis built (Advanced Chassis, Antwerp, Ohio) I took them a plywood template of my back in the seating position with appropriate lumbar support built in. It is very comfortable.

thats very cool and looks great.  its neat they were able to do the lumbar for you too.  gonna be a fun ride for you. 

Offline THE FRENCHTOWN FLYER

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Re: new experiences - my 225" fed
« Reply #52 on: August 27, 2018, 08:18:10 PM »
Thanks noslin - its my avatar car. Been havin' fun with it for years.

Offline denverflatheader

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Re: new experiences - my 225" fed
« Reply #53 on: August 28, 2018, 12:07:53 PM »
Dean - maybe keep in mind when designing your sheet metal the couple areas that are more prone to wear and damage, like the front end.  Your future effort to repair or replace a complex design may help select the final shape.
       
For your fire system, running the feed lines and nozzles above the bottom of the adjacent frame rail is required per the nhra rulebook.  Your nozzle placements look like theyíll do suitable job, all located inside the frame rails. 

Youíve probably done this already; suited up with driving shoes/boots on and climbed in/out of the driverís compartment by yourself to verify the feed lines and nozzles allow unblemished movement.  When activated, the fire bottle(s) must completely discharge, not sure of the force, you could test your nozzles with pressurized water to see the spray pattern and adjust as necessary.
 
When youíre ready to do final feed line and nozzle installations, you might consider a product like this one, or perhaps you already have them or something similar.  Alan

https://www.ebay.com/itm/100-Piece-Stainless-Steel-Metal-Zip-Ties-Straps-Wrapping-Exhaust-Locking-Pipes/323416367245?hash=item4b4d1e208d:g:kBgAAOSwt~5bg6mh


Offline noslin

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Re: new experiences - my 225" fed
« Reply #54 on: August 29, 2018, 05:53:22 PM »
Dean - maybe keep in mind when designing your sheet metal the couple areas that are more prone to wear and damage, like the front end.  Your future effort to repair or replace a complex design may help select the final shape.
       
For your fire system, running the feed lines and nozzles above the bottom of the adjacent frame rail is required per the nhra rulebook.  Your nozzle placements look like theyíll do suitable job, all located inside the frame rails. 

Youíve probably done this already; suited up with driving shoes/boots on and climbed in/out of the driverís compartment by yourself to verify the feed lines and nozzles allow unblemished movement.  When activated, the fire bottle(s) must completely discharge, not sure of the force, you could test your nozzles with pressurized water to see the spray pattern and adjust as necessary.
 
When youíre ready to do final feed line and nozzle installations, you might consider a product like this one, or perhaps you already have them or something similar.  Alan

https://www.ebay.com/itm/100-Piece-Stainless-Steel-Metal-Zip-Ties-Straps-Wrapping-Exhaust-Locking-Pipes/323416367245?hash=item4b4d1e208d:g:kBgAAOSwt~5bg6mh

Thanks Alan for the input, ive jumped in the seat many times but not with suit yet.  i  know that will change things but i htink with the nozzles, i think they will be out of the way of knees and feet.

so, i called Good Vibrations today asking about cable for the fire system.  The person was extremely helpful and got me to re-think how im setting this up.  my plan was to do two seperate systems and pull to activate.  In speaking with the sales person, he pointed out NHRA rule and also noted there are half dozen that he knows who have two seperate systems.  He mentioned one way to get around it is to hook both cables together if asked about it.

the other thing he brought up is to push and not pull.  He mentioned with/when doing the blind-fold test you dont want to be thrashing around trying to find handle to 'pull'.  so, since in the front i have it setup to do a pull from bottle end.  i would have to do same setup on drivers in so it is a push setup; which he pointed out people do set them up this way.

so, dilemma..  first is getting both handles in one spot that isnt in the way while getting in/out of fed.  secondly, building setup to make this a push setup; which is no big deal.. just takes up space.  lastly, maybe just set it up so both fire bottles as per rules and not do separate setup.. 

I understand the premise of having two seperate systems as if one blows you can use your bottle for the other one and save yourself some money not having to fill both bottles.  i guess the road block for me is getting both in one spot thats easily accessible and where i can tie both handles together if need be.  also, enough room to build the cantilever setup at driver end to make a push setup.

on a side note, i asked how much to refill 10lb bottle.  its $130 and recert is $35 per bottle. 

Offline gregm784

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Re: new experiences - my 225" fed
« Reply #55 on: August 30, 2018, 07:50:43 AM »
I run two sep systems on my dragster.  Both knobs are push to activate.  Both on left side of dash.  They are the only thing on the left side of my dash. 
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