Re: Big Block mechanical pump for 800 Hp
[Re: bobby66]
#2439725
01/23/18 09:02 PM
01/23/18 09:02 PM
|
Joined: May 2017
Posts: 72 WI
Brewzer67
member
|
member
Joined: May 2017
Posts: 72
WI
|
Be ready to do some serious grinding on that Clay Smith pump. Had to grind the block on my 440, ran out of room on the pump. I hit it lucky and didn't have to clearance the block at all but it is a snug fit as it sits. I did have to clearance the pump almost to one of the screws. Last motor was a little over 600hp running with this pump and held a steady 7psi all the way down the track. Hopefully it will keep up with the new motor as well. Time will tell.
|
|
|
Re: Big Block mechanical pump for 800 Hp
[Re: bobby66]
#2439726
01/23/18 09:06 PM
01/23/18 09:06 PM
|
Joined: Aug 2004
Posts: 3,392 cheshire, ct
davesmopars
OP
master
|
OP
master
Joined: Aug 2004
Posts: 3,392
cheshire, ct
|
Be ready to do some serious grinding on that Clay Smith pump. Had to grind the block on my 440, ran out of room on the pump. What block do you have? I really do not want to grind my block
Last edited by davesmopars; 01/23/18 09:07 PM.
Keeper of the 440 M code Cuda registry mcodecuda@yahoo.com
|
|
|
Re: Big Block mechanical pump for 800 Hp
[Re: Brewzer67]
#2439728
01/23/18 09:09 PM
01/23/18 09:09 PM
|
Joined: Aug 2004
Posts: 3,392 cheshire, ct
davesmopars
OP
master
|
OP
master
Joined: Aug 2004
Posts: 3,392
cheshire, ct
|
Be ready to do some serious grinding on that Clay Smith pump. Had to grind the block on my 440, ran out of room on the pump. I hit it lucky and didn't have to clearance the block at all but it is a snug fit as it sits. I did have to clearance the pump almost to one of the screws. Last motor was a little over 600hp running with this pump and held a steady 7psi all the way down the track. Hopefully it will keep up with the new motor as well. Time will tell. What block do you have and do you run a return line?
Keeper of the 440 M code Cuda registry mcodecuda@yahoo.com
|
|
|
Re: Big Block mechanical pump for 800 Hp
[Re: sr4440]
#2439752
01/23/18 10:12 PM
01/23/18 10:12 PM
|
Joined: Nov 2010
Posts: 3,696 jersey
Spaceman Spiff
master
|
master
Joined: Nov 2010
Posts: 3,696
jersey
|
Ran the 110 Pump back when that was all you could get, for a while and it did drop in different locations on a pass. I also ran a very big line and big filter with no kinks and slow curves in the line up to the regulator that was beside the Carbs. Being a stick car with a violent leave I knew I needed more pump. I would spend the money on it once and buy a better pump. There are a lot of fuel pumps that do a much better job than the 110 Pump and are not that much more money. Usually a pump pushes better than it pulls so location of the type of pump you are using has an effect of performance of the pump. are you talking about a electric pump? Because a mechanical pump develops a significant amount of vacuum on the suction side(10 inches of mercury on a stock pump)unlike a electric pump. I have never tested a HP pump to see how much vacuum it pulls. To the OP, it's clear that the majority opinion is you need a very large pump. A 140 GPH pump from clay smith that, he claims, supports 1300HP might get you by. http://www.claysmithcams.com/mopar-b-426-chrysler-hemi/I give up. Joe from their website: And, according to Dyno figures, it takes approximately 10galllons of gas per 100 HP per hour, the Clay Smith Power Pumper will theoretically handle up to 1300 HP on gas or 1150 on alcohol ! "THEORETICALLY" Just like your signature says, Without Data, you’re just another guy with an opinion. I'd like to see that data that proves this will support 1300hp.
526 cubes of angry wedge, pushbutton shifted, 9 passenger killer!
|
|
|
Re: Big Block mechanical pump for 800 Hp
[Re: davesmopars]
#2440048
01/24/18 03:10 PM
01/24/18 03:10 PM
|
Joined: Aug 2004
Posts: 3,392 cheshire, ct
davesmopars
OP
master
|
OP
master
Joined: Aug 2004
Posts: 3,392
cheshire, ct
|
Thanks everybody I called clay smith they recommend to run the pump with a regulator , check valve with a return line. I am running a cross ram with 4235 and 4236 carbs any suggestion on how I should set up my fuel system and lines. Thanks
Keeper of the 440 M code Cuda registry mcodecuda@yahoo.com
|
|
|
Re: Big Block mechanical pump for 800 Hp
[Re: davesmopars]
#2440068
01/24/18 03:40 PM
01/24/18 03:40 PM
|
Joined: Jan 2011
Posts: 4,785 Utah and Alaska
astjp2
master
|
master
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
|
Rigid 1/2" stainless feed lines, parker braided Teflon between the pickup and hard line and frame rail to the pump. Tim
1941 Taylorcraft 1968 Charger 1994 Wrangler 1998 Wrangler 2008 Kia Rio 2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
|
|
|
Re: Big Block mechanical pump for 800 Hp
[Re: davesmopars]
#2440366
01/25/18 02:18 AM
01/25/18 02:18 AM
|
Joined: May 2017
Posts: 72 WI
Brewzer67
member
|
member
Joined: May 2017
Posts: 72
WI
|
Be ready to do some serious grinding on that Clay Smith pump. Had to grind the block on my 440, ran out of room on the pump. I hit it lucky and didn't have to clearance the block at all but it is a snug fit as it sits. I did have to clearance the pump almost to one of the screws. Last motor was a little over 600hp running with this pump and held a steady 7psi all the way down the track. Hopefully it will keep up with the new motor as well. Time will tell. What block do you have and do you run a return line? I would have to go down and look but I am pretty sure it is a '72 or '73 440 block.
|
|
|
Re: Big Block mechanical pump for 800 Hp
[Re: davesmopars]
#2440420
01/25/18 06:12 AM
01/25/18 06:12 AM
|
Joined: Jul 2004
Posts: 3,805 Arlington, Texas
bobby66
master
|
master
Joined: Jul 2004
Posts: 3,805
Arlington, Texas
|
Be ready to do some serious grinding on that Clay Smith pump. Had to grind the block on my 440, ran out of room on the pump. What block do you have? I really do not want to grind my block A '73 440. I mocked it up on a '78 400 and no grinding was needed on the block.
|
|
|
Re: Big Block mechanical pump for 800 Hp
[Re: Cab_Burge]
#2440655
01/25/18 05:55 PM
01/25/18 05:55 PM
|
Joined: Aug 2004
Posts: 3,392 cheshire, ct
davesmopars
OP
master
|
OP
master
Joined: Aug 2004
Posts: 3,392
cheshire, ct
|
Hopefully the pump will fit. Picture not working, I need to take new one moparts uses old tech, I have to set my phone on old settings
Last edited by davesmopars; 01/25/18 05:59 PM.
Keeper of the 440 M code Cuda registry mcodecuda@yahoo.com
|
|
|
Re: Big Block mechanical pump for 800 Hp
[Re: davesmopars]
#2448498
02/08/18 01:53 PM
02/08/18 01:53 PM
|
Joined: Aug 2004
Posts: 3,392 cheshire, ct
davesmopars
OP
master
|
OP
master
Joined: Aug 2004
Posts: 3,392
cheshire, ct
|
Here is a picture on my block. Hopefully the pump fits. I have a solid roller cam. Is the stock fuel pump pushrod ok to use?
Keeper of the 440 M code Cuda registry mcodecuda@yahoo.com
|
|
|
Re: Big Block mechanical pump for 800 Hp
[Re: davesmopars]
#2448500
02/08/18 02:01 PM
02/08/18 02:01 PM
|
Joined: Jan 2003
Posts: 13,357 Marion, South Carolina [><]
an8sec70cuda
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 13,357
Marion, South Carolina [><]
|
No. You need a bronze tipped pushrod to use on a billet roller cam.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
|
|
|
Re: Big Block mechanical pump for 800 Hp
[Re: davesmopars]
#2448851
02/09/18 12:40 AM
02/09/18 12:40 AM
|
Joined: Aug 2004
Posts: 3,392 cheshire, ct
davesmopars
OP
master
|
OP
master
Joined: Aug 2004
Posts: 3,392
cheshire, ct
|
Any recommendations on who sells them?
Last edited by davesmopars; 02/09/18 01:43 AM.
Keeper of the 440 M code Cuda registry mcodecuda@yahoo.com
|
|
|
Re: Big Block mechanical pump for 800 Hp
[Re: davesmopars]
#2449194
02/09/18 07:20 PM
02/09/18 07:20 PM
|
Joined: Aug 2004
Posts: 3,392 cheshire, ct
davesmopars
OP
master
|
OP
master
Joined: Aug 2004
Posts: 3,392
cheshire, ct
|
Thanks Now how figure out the plumbing and the return line and make it look good.
Last edited by davesmopars; 02/09/18 07:22 PM.
Keeper of the 440 M code Cuda registry mcodecuda@yahoo.com
|
|
|
|
|