Re: Max CR with BB MP 590 Cam
[Re: Scott58]
#970846
04/10/11 10:20 PM
04/10/11 10:20 PM
|
Joined: Nov 2003
Posts: 6,293
Rock Springs
Bob_Coomer
master
|
master
Joined: Nov 2003
Posts: 6,293
Rock Springs
|
that cam is pretty long in Dur.. think in the 265-268 range@.50..I ran that cam with a 11:1 493 with mildly ported Eddy RPM's and it ran strong... If your running a stock stroke engine IMO the compression needs to be as high as you can achieve... It will only run bettter. Most say 12-12.5:1+ is idea.. Its just hard to get these compression numbers with stock heads without dome pistons, and shaved heads.
[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]
|
|
|
Re: Max CR with BB MP 590 Cam
[Re: Bob_Coomer]
#970848
04/10/11 11:28 PM
04/10/11 11:28 PM
|
Joined: Mar 2007
Posts: 3,300
Northern Indiana
Dunnuck Racing
master
|
master
Joined: Mar 2007
Posts: 3,300
Northern Indiana
|
Quote:
that cam is pretty long in Dur.. think in the 265-268 [Email]range@.50..
That camshaft is 271 @050.MP used to tell you it was 265,but they have updated the paperwork finally.
I ran that shaft in a stock stroke 440,9.8 to 1 actual.MP 452 aluminum heads,38 degrees total timing.My cranking compressiion was 165-170.
A good friend of mine runs the same setup,at 11.3 to 1 36 degrees total timing,unknown cranking comp.
Another racer I know runs his at 9.0 to 1 iron headed,38 degrees total.
We all ran(or still run)93 octane pump gas.
Keep in mind,the fuel may be different where you are,most everywhere around here has ethenol in it.
Even the car with the low compression/ iron heads runs real well, he ha one many races and championships in his car.
By the way,I ran mine mine at 104 intake centerline,so did my friend.Not sure on the other guy's build.
Keith
|
|
|
Re: Max CR with BB MP 590 Cam
[Re: Dunnuck Racing]
#970849
04/11/11 06:51 AM
04/11/11 06:51 AM
|
Joined: May 2004
Posts: 3,210
robin hood country
deaks
master
|
master
Joined: May 2004
Posts: 3,210
robin hood country
|
I run the .590 in a 440 with rpm's, 12.5.1 comp, cam in at 104.
I haven't started tuning it yet, i run 34 degrees timing.
Mick
69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200#
best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft
best 60ft 1.36
|
|
|
Re: Max CR with BB MP 590 Cam
[Re: Scott58]
#970851
04/11/11 11:26 AM
04/11/11 11:26 AM
|
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
Dodgem
master
|
master
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
|
Friend had that cam in a 446 RPM eddies with 10 to 1 in at 100 and I'm sure he could have ran 87 but he put 94 in it. when we advanced the cam from 104 it picked up a couple tenths and he could leave 1000 rpm less torque at the line. I ran a 263/271 ultradyne in at 102 for years with 11.75 to 1 SR heads on 94. Your cranking compression is only going to be 185 ish and I assume a 4500 plus stall. as rpms increase octane requirements decrease. I would say 93 your fine you may be able to ween it to 91. This past year I ran 12 to 1 272/282 @ .050 on 94 same heads. 
Last edited by Dodgem; 04/11/11 11:28 AM.
|
|
|
Re: Max CR with BB MP 590 Cam
[Re: Scott58]
#970855
04/11/11 04:42 PM
04/11/11 04:42 PM
|
Joined: Jan 2003
Posts: 3,831
N.E. Ohio
6bblFLASH
master
|
master
Joined: Jan 2003
Posts: 3,831
N.E. Ohio
|
I run a .590 installed at 106-c/l. 1.6 ratio rockers,Stage-6 heads w/63cc. chambers.
I run 93 umleaded ONLY .
My compression comes out with a measured assembled engine at exactly 12.34cr.
#4 cyl. try and does detonate if I try to use a 2-step. But thats a manifold issue.
70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
|
|
|
Re: Max CR with BB MP 590 Cam
[Re: shoebox]
#970857
04/11/11 07:07 PM
04/11/11 07:07 PM
|
Joined: Aug 2009
Posts: 2,047
Mooresburg, Tn
'72CudaRacer
top fuel
|
top fuel
Joined: Aug 2009
Posts: 2,047
Mooresburg, Tn
|
I run that cam straight up (104*) with 13.6:1 compression. I have Ross domed pistons, Stealth heads, Team G intake, 1050 Dominator (8896), MP roller tipped alum rockers w/ 1.5 ratio, and Sunoco 112 racing fuel. This combo is almost 600 hp and I did break a main cap after 300 passes. I put a main stud girdle on last week and ran this weekend, 10.49 in 1/4 and 6.56 in 1/8. When I advanced this cam 2*, it had way too much torque. I am running 35* timing
If you need any more info about mine, just ask, I'll help as much as I can.
Brian Dunnigan
|
|
|
Re: Max CR with BB MP 590 Cam
[Re: '72CudaRacer]
#970858
04/11/11 09:00 PM
04/11/11 09:00 PM
|
Joined: Jan 2003
Posts: 17,918
Akron, Ohio
ProSport
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 17,918
Akron, Ohio
|
I ran the 590 cam in my old car with Isky 8005a springs, cam in at 104, compression was 11.2:1, car was 3050# with me in it. It went 9.90's in the 1/4 at 136 MPH. Great street strip cam! I had 451 cubes and Eddy heads, M1 TR with 2 750's. Current owner has gone 9.77 thru the muffs!
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
|
|
|
Re: Max CR with BB MP 590 Cam
[Re: ProSport]
#970859
04/11/11 11:09 PM
04/11/11 11:09 PM
|
Joined: Nov 2005
Posts: 808
mckinney texas
shoebox
super stock
|
super stock
Joined: Nov 2005
Posts: 808
mckinney texas
|
Quote:
I ran the 590 cam in my old car with Isky 8005a springs, cam in at 104, compression was 11.2:1, car was 3050# with me in it. It went 9.90's in the 1/4 at 136 MPH. Great street strip cam! I had 451 cubes and Eddy heads, M1 TR with 2 750's. Current owner has gone 9.77 thru the muffs!
What was shift point?
|
|
|
Re: Max CR with BB MP 590 Cam
[Re: '72CudaRacer]
#970861
04/12/11 09:50 PM
04/12/11 09:50 PM
|
Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
|
Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
|
493, 10.5cr, 185 cranking comp, 93 pump gas, installed at 105. rpm heads, six pack, ran 10.50s at 3700lbs, shifted at 5800, used the isky's 8005a also
Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
|
|
|
Re: Max CR with BB MP 590 Cam
[Re: ProSport]
#970862
04/13/11 01:25 AM
04/13/11 01:25 AM
|
Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
|
Quote:
I ran the 590 cam in my old car with Isky 8005a springs, cam in at 104, compression was 11.2:1, car was 3050# with me in it. It went 9.90's in the 1/4 at 136 MPH. Great street strip cam! I had 451 cubes and Eddy heads, M1 TR with 2 750's. Current owner has gone 9.77 thru the muffs!
That was a great running combo.  Ron
|
|
|
|
|
