Re: So...how many predator engines are out there?
[Re: dthemi]
#1928219
10/08/15 08:46 AM
10/08/15 08:46 AM
|
Joined: May 2007
Posts: 279 Chicago land, IL
dafixr
enthusiast
|
enthusiast
Joined: May 2007
Posts: 279
Chicago land, IL
|
Our crank centerline was 9 7/8" we raise car 3 turns (.300)now a little under 10 1/4" higher at our track because our return road has a bump that our front end scraps. Front of car was at 3". Front spring are 225#, pinion angle 1.0,front shocks are 1 turn off tight, I'll have to recheck rear shock setting, rear steer 1/16",anti roll hanging -1/2 flat short,front frame height 3" / rear height 5" at 4-link, 6 psi in tires, set wheelie bar at 5" to 5 1/2" depending on track. Going to a single wheelie bar took off 11# off rear,battery weight is 9.2# also.
Maybe you can use some of the info good luck.
How much timing do you run and what compression & cu. in.?
For oil pan ours is a Charley's from Indy fits good with diaper, could send pic's.
Last edited by dafixr; 10/08/15 08:49 AM.
|
|
|
Re: So...how many predator engines are out there?
[Re: camastomcat]
#1928240
10/08/15 09:30 AM
10/08/15 09:30 AM
|
Joined: Oct 2004
Posts: 3,097 back in Georgia
dthemi
master
|
master
Joined: Oct 2004
Posts: 3,097
back in Georgia
|
Thanks dafixar, for sure the info is a big help. The motor is a 588 conventional 426 based hemi. 14:1 compression 288/306 on a 114 with a .525 lobe, and 1.7 1.6 rockers. One E3 nozzle fogger. 34 timing to start, then pulling 10 for the 250 shot. I'll go further as and if the car goes straight. I never really intended to use this motor, but when I sold one of my cars the guy bought the 654 na millennium hemi I had put in, then the second hemi I put someone else bought, so now I'm on the third engine, and switching to the predator over the winter. I've never kept the car together long enough to sort it out. I'm going testing next week with WJ to sort it out. I'll get after it when I get the predator in it.
I've been trying to make it work without rear steer, but I think I'll have to go to it. Are you long on the driver side the 1/16?
The pan I run now is an olsen dragster pan., I may go to the dailey dry system to sort it out and get the crank lower, or just order a new RJ car and let them worry with it lol. Getting tired of my knuckles hurting from ripping the car apart over and over.
|
|
|
Re: So...how many predator engines are out there?
[Re: dafixr]
#1928292
10/08/15 11:14 AM
10/08/15 11:14 AM
|
Joined: Jan 2003
Posts: 2,813 Blue Ridge, VA
Plumb Wired
master
|
master
Joined: Jan 2003
Posts: 2,813
Blue Ridge, VA
|
we would like to be at 12.5/12.75 AF Your current AF "13.25/13.75 on O-2 sensors" is leaner than your target "12.5/12.75 AF" not richer. Higher AF number = leaner Lower AF number = richer The nitrous engines I own and tune seem to like around a 12.8:1 AF ratio. Your results may vary.
Last edited by Plumb Wired; 10/08/15 11:16 AM.
RIP Monte Smith
aka: OutlawFish '98 Bickel Dodge Dakota PST
|
|
|
Re: So...how many predator engines are out there?
[Re: camastomcat]
#1928346
10/08/15 12:58 PM
10/08/15 12:58 PM
|
Joined: Jan 2003
Posts: 19,636 Las Vegas
Al_Alguire
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 19,636
Las Vegas
|
Maybe I was unclear but when someone asked it 12.5/12.75 was richer my replay was yes it is compared to what the OP posted for current numbers.
Curious is you are only running 2 O2's, one in each collector or 8 O2's?
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
|
|
|
Re: So...how many predator engines are out there?
[Re: camastomcat]
#1928356
10/08/15 01:07 PM
10/08/15 01:07 PM
|
Joined: Nov 2004
Posts: 6,890 North Alabama
Monte_Smith
master
|
master
Joined: Nov 2004
Posts: 6,890
North Alabama
|
That .046 jet tune you list that you have in your fogger.......is nowhere near a 600hp tune. Those jets simply won't pass enough nitrous to make that kind of power.
Cam is all wrong in my opinion as well for a lot of spray
Last edited by Monte_Smith; 10/08/15 01:08 PM.
|
|
|
Re: So...how many predator engines are out there?
[Re: dthemi]
#1931186
10/12/15 11:22 PM
10/12/15 11:22 PM
|
Joined: Sep 2003
Posts: 1,050 San Jose Ca.
boatracer572
super stock
|
super stock
Joined: Sep 2003
Posts: 1,050
San Jose Ca.
|
I'm building a 672 with Predator heads. I started to go 690, but opted for the 672 because of the rod/cam interference even with a 2 inch rod journal, and a 60mm cam.
Bryant just finished the crank, but still waiting on the block. The heads have been an ongoing effort, and still not done. Offsetting the rockers makes room to make the ports as big as they need to be, which seem to be a problem with big inch motors. With tool steel rockers we can offset, and move the port wall another .175.
When, if ever finished it'll go in my RJ stratus, and I think 1300 should be doable, but only time will tell.
Trouble is, there's no real reason to be doing it. There's no class where that head would be competitive against Ford, or Chevy. Just something to try. was down at KB today checking on my block...your block looks done, just needs the sleves and main cap installed, tom Black was working on It when I was there
|
|
|
Re: So...how many predator engines are out there?
[Re: camastomcat]
#1931423
10/13/15 01:43 PM
10/13/15 01:43 PM
|
Joined: Nov 2004
Posts: 6,890 North Alabama
Monte_Smith
master
|
master
Joined: Nov 2004
Posts: 6,890
North Alabama
|
Forget the plates. On a tunnel ram, with a lot of nitrous, I think plates are an extraordinarily BAD idea. You need 3 guns, put three port kits on it.
As you know, the more nitrous you spray, the more air you displace in the intake and actual air flow goes down.
My suggestion would be go EFI as well. I am working on a new 3 stage dry nozzle that makes the plumbing very clean for something with 3 guns in a single nozzle
Last edited by Monte_Smith; 10/13/15 01:46 PM.
|
|
|
Re: So...how many predator engines are out there?
[Re: Monte_Smith]
#1931835
10/14/15 12:30 AM
10/14/15 12:30 AM
|
Joined: Mar 2005
Posts: 1,410 Chesterfield Twp. Mi.
John Burdine
pro stock
|
pro stock
Joined: Mar 2005
Posts: 1,410
Chesterfield Twp. Mi.
|
Forget the plates. On a tunnel ram, with a lot of nitrous, I think plates are an extraordinarily BAD idea. You need 3 guns, put three port kits on it.
As you know, the more nitrous you spray, the more air you displace in the intake and actual air flow goes down.
My suggestion would be go EFI as well. I am working on a new 3 stage dry nozzle that makes the plumbing very clean for something with 3 guns in a single nozzle So, one big nozzle that holds 3 separate n/jets? Is this a future NOS product?
|
|
|
Re: So...how many predator engines are out there?
[Re: John Burdine]
#1931854
10/14/15 01:20 AM
10/14/15 01:20 AM
|
Joined: Nov 2004
Posts: 6,890 North Alabama
Monte_Smith
master
|
master
Joined: Nov 2004
Posts: 6,890
North Alabama
|
Forget the plates. On a tunnel ram, with a lot of nitrous, I think plates are an extraordinarily BAD idea. You need 3 guns, put three port kits on it.
As you know, the more nitrous you spray, the more air you displace in the intake and actual air flow goes down.
My suggestion would be go EFI as well. I am working on a new 3 stage dry nozzle that makes the plumbing very clean for something with 3 guns in a single nozzle So, one big nozzle that holds 3 separate n/jets? Is this a future NOS product? It will at least be a Monte Smith Performance product
|
|
|
|
|