Who can make a 1250hp bigger in cfm.

Old 11-29-2008, 06:41 PM
  #11  
bjuice
Administrator
RACING JUNKIE
 
bjuice's Avatar
 
Join Date: Apr 2003
Location: Greenville s.c.
Posts: 3,239
Default

i purchased an APD alcohol custom built 1150 cfm last year and couldn't have been more happy with it. i would not hesitate with either company

$1,600 plus your carb sounds really steep speacially if ya got a $1500 piece to begin with...WOW ! but i guess they are getting it.

my 2 cents
__________________
Bjuice..

"I'M YOUR HUCKLEBERRY ! "
bjuice is offline  
Old 11-29-2008, 08:22 PM
  #12  
dparker
Senior Member
RACING JUNKIE
 
Join Date: Jun 2003
Location: Hobbs, NM
Posts: 842
Default

I don't think you need more than 1250 cfms. Maybe a better built carb. Check back with us but Ill bet they set you up with a 1150 to 1250 cfm set up.
If RPMs is what you want:
Big heads
Alum. rods
Lots of spring pressure
and a big stick
is what your looking for.
GOOD LUCK :?
dparker is offline  
Old 11-29-2008, 08:39 PM
  #13  
hammertime
Senior Member
RACING JUNKIE
 
Join Date: May 2003
Location: Coldwater, MI
Posts: 2,998
Default

Originally Posted by dparker
I don't think you need more than 1250 cfms. Maybe a better built carb. Check back with us but Ill bet they set you up with a 1150 to 1250 cfm set up.
If RPMs is what you want:
Big heads
Alum. rods
Lots of spring pressure
and a big stick
is what your looking for.
GOOD LUCK :?
Couldnt agree more, 1250 should be plenty big enough if built right.
we've ran a 1150 APD on a 565 Big Duke motor that made 1150hp on the dyno.
hammertime is offline  
Old 11-30-2008, 12:52 PM
  #14  
obsessedtruck
Member
JUNIOR BUILDER
Thread Starter
 
Join Date: Jan 2006
Location: MN
Posts: 86
Default

Originally Posted by dparker
I don't think you need more than 1250 cfms. Maybe a better built carb. Check back with us but Ill bet they set you up with a 1150 to 1250 cfm set up.
If RPMs is what you want:
Big heads
Alum. rods
Lots of spring pressure
and a big stick
is what your looking for.
GOOD LUCK :?
Thatsw what I have exactly, Except 7" Oliver rods. Heads flow 520ish, 288*,298* @ .050, .883Int, .833Exh at the valve, The new Brodix Intake design. I upgraded a couple of things along the way also. Dry sump, .904" lifters, Curtis did some more touch up on the heads and intake. So if this thing likes 8500+ thats what it'll turn.
obsessedtruck is offline  
Old 11-30-2008, 01:31 PM
  #15  
dparker
Senior Member
RACING JUNKIE
 
Join Date: Jun 2003
Location: Hobbs, NM
Posts: 842
Default

Maybe I can borrow it to make a pass in my 4link dragster. I always have wondered how a motor from your type of racing would do in dragracing. Probably JUST HAUL ASS!!!
I have a top dragster but only have a .775 lift cam with 250lb spring pressure. Working on consistancey and durability.
dparker is offline  
Old 11-30-2008, 02:56 PM
  #16  
obsessedtruck
Member
JUNIOR BUILDER
Thread Starter
 
Join Date: Jan 2006
Location: MN
Posts: 86
Default

Thats where drag and pullin differ. I can car less about consistancy and you guys do. :wink: But we have to make ours pretty stout to take the extreme abuse. Nothing like wfo for 12-20secs and choke it down so it almost kills on ya. This motor of mine is built for the rpm. Gotta love it
obsessedtruck is offline  
Old 12-05-2008, 06:26 PM
  #17  
camarotale
Member
CRAFTSMAN
 
Join Date: Jan 2005
Posts: 50
Default carb

just call pat at pro systems, he will tell you what is needed, probably a lot smaller than you think, he built two carbs for me and they were perfect, not even a jet change was needeed. Plus he talks to you like he knows you , and any proplem at the track , call him and he helps right now , I wont ever buy another carb without going thru him, what ever he charges is worth ever dime
camarotale is offline  
Old 12-06-2008, 08:15 PM
  #18  
altailites
Member
JUNIOR BUILDER
 
Join Date: Sep 2003
Location: las vegas
Posts: 75
Default

Im with you camarotale pat is the man
altailites is offline  
Old 12-07-2008, 03:47 PM
  #19  
obsessedtruck
Member
JUNIOR BUILDER
Thread Starter
 
Join Date: Jan 2006
Location: MN
Posts: 86
Default

I was able to borrow a BIG carb from a fellow truck puller. It has 2.200 throttle blades. He couldnt remember what cfm it was. But it picked up 6hp on top and areas of 10-20 trough the mid-range. So a big carb did help a good amount. This is at the wheel numbers. 740RRWHP which is on my chasis 1070hp.
obsessedtruck is offline  
Old 12-07-2008, 04:55 PM
  #20  
tcarda
Senior Member
MASTER BUILDER
 
Join Date: Aug 2003
Location: Big Lake, Minnesota
Posts: 162
Default

Originally Posted by obsessedtruck
Originally Posted by dparker
I don't think you need more than 1250 cfms. Maybe a better built carb. Check back with us but Ill bet they set you up with a 1150 to 1250 cfm set up.
If RPMs is what you want:
Big heads
Alum. rods
Lots of spring pressure
and a big stick
is what your looking for.
GOOD LUCK :?
Thatsw what I have exactly, Except 7" Oliver rods. Heads flow 520ish, 288*,298* @ .050, .883Int, .833Exh at the valve, The new Brodix Intake design. I upgraded a couple of things along the way also. Dry sump, .904" lifters, Curtis did some more touch up on the heads and intake. So if this thing likes 8500+ thats what it'll turn.

So thats your new cam, huh? Now I know! LOL
tcarda is offline  

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -