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Re: boosted cams,post yours. [Re: hemidup] #618507
03/24/10 09:48 AM
03/24/10 09:48 AM
Joined: Jul 2005
Posts: 8,647
ELYRIA,OH
B
blownzoom440 Offline OP
blownzoom440  Offline OP
B

Joined: Jul 2005
Posts: 8,647
ELYRIA,OH
thanks for the update!not that i think it is effecting things badly i just wondered how much w/m are you injecting and how much boost?,fuel,timing,A/F mix at the top?i know it is a lot of ? but.
thanks.

Re: boosted cams,post yours. [Re: hemidup] #618508
03/24/10 07:44 PM
03/24/10 07:44 PM
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
T
TRENDZ Offline
master
TRENDZ  Offline
master
T

Joined: Jan 2005
Posts: 2,540
Milwaukee WI
There is a defined range for rpm/ duration. You are operating above and beyond that range. Supercharging or turbocharging helps to stretch that range. It lets you "get away" with things that you can't with a N/A motor. In your case, you're "getting away" with alot. 5000+ lbs and almost in the tens,,,, you're doing good. Treat your engine to a little breathing. Go with at least 230 @050. You will be pleasantly suprised.


"use it 'till it breaks, replace as needed"
Re: boosted cams,post yours. [Re: blownzoom440] #618509
03/25/10 10:08 AM
03/25/10 10:08 AM
Joined: Nov 2008
Posts: 833
MN
hemidup Offline
super stock
hemidup  Offline
super stock

Joined: Nov 2008
Posts: 833
MN
Quote:

thanks for the update!not that i think it is effecting things badly i just wondered how much w/m are you injecting and how much boost?,fuel,timing,A/F mix at the top?i know it is a lot of ? but.
thanks.




w/m is turned on at 4psi just prior to seeing any knock and progressively ramps with boost. At 18 psi the little Paxton huffer is working o.t and I've planned on updating to a Procharger F1, but funds are tight at the moment and all my spare change is going towards the Drag Pak Challenger. The engine makes its best power with 10.8 a/f power rich and 11.2 power lean @ wot. Running a factory pcm with this Gen III Hemi puts stock timing at 18 degree's at wot, however I can pull up to 9 additional degree's where needed to stay ahead of the knock sensors before the factory pcm has the chance to pull timing and fuel. Fueling is handled by twin Walbro pumps feeding custom 66 lb injectors through an adjustable boost referenced regulator.


Jerry Williams.
Re: boosted cams,post yours. [Re: TRENDZ] #618510
03/25/10 10:30 AM
03/25/10 10:30 AM
Joined: Nov 2008
Posts: 833
MN
hemidup Offline
super stock
hemidup  Offline
super stock

Joined: Nov 2008
Posts: 833
MN
Quote:

There is a defined range for rpm/ duration. You are operating above and beyond that range. Supercharging or turbocharging helps to stretch that range. It lets you "get away" with things that you can't with a N/A motor. In your case, you're "getting away" with alot. 5000+ lbs and almost in the tens,,,, you're doing good. Treat your engine to a little breathing. Go with at least 230 @050. You will be pleasantly suprised.




I'd love to run a 230 cam, however I'm still using the factory pcm and I wouldn't be able to get the engine to idle unless I two foot the brake and gas. Your correct about a 230. I engine dyno'd a few of these new Hemi's with 230-232 duration cams with excellent results. One motor made 700hp/735tq at 5000 rpm, non interfcooled, with 9 lbs of boost before belt slip ended the session.


Jerry Williams.
Re: boosted cams,post yours. [Re: hemidup] #618511
04/16/10 02:54 PM
04/16/10 02:54 PM
Joined: Dec 2003
Posts: 390
ALBERTA CANADA
F
furydave Offline
enthusiast
furydave  Offline
enthusiast
F

Joined: Dec 2003
Posts: 390
ALBERTA CANADA
ISKY .555/.570 LIFT
264 INTK/272 EXH @.50
.110 CENTERLINE
Great for a heavy car.4200 lbs!

8.1 Ross Piston
eddy 84cc head, crane golds
871 Bds
6 1/2 lbs of boost

Great on the street and bang on consistent.

Re: boosted cams,post yours. [Re: furydave] #618512
07/31/10 01:12 PM
07/31/10 01:12 PM
Joined: Jan 2008
Posts: 63
indiana PA
moparbob498 Offline
member
moparbob498  Offline
member

Joined: Jan 2008
Posts: 63
indiana PA
custom grind Crane--#68R000029
R-286/4668-2S3-12
lash .026 int.---.030 exh.
@.050- int. opens 34 BTDC CLOSES 72 ABDC 286* DUR.
EXH. OPENS 88 BBDC CLOSES 38 ATDC 306* DUR
112* CENTERLINE INSTALLED AT 108*
ADVERTISED .700 INT.---.715 EXH. 326*--356*
MAX RPM 8600
its my first roller and is unreal


mopar or no car
Re: boosted cams,post yours. [Re: moparbob498] #618513
07/31/10 08:53 PM
07/31/10 08:53 PM
Joined: Dec 2005
Posts: 96
Australia
G
gg408 Offline
member
gg408  Offline
member
G

Joined: Dec 2005
Posts: 96
Australia
Solid flat tappet.
single pattern
236 @ .050".
.526" lift with 1.5 rockers
114 lsa

its a 410 w2 headed small block with a BW S480 turbo, hoping to make around the 850/900 fwhp.
Lets see what happens.

gg408

Re: boosted cams,post yours. [Re: gg408] #618514
08/02/10 09:31 PM
08/02/10 09:31 PM
Joined: Jan 2003
Posts: 8,547
State College, PA
RyanJ Offline
moparts member
RyanJ  Offline
moparts member

Joined: Jan 2003
Posts: 8,547
State College, PA
Comp TK Solid Roller lobes, 242/242 @ .050" 112 LSA, 1.7 Rockers .737" lift. Made 678 HP @ 6700/588 TQ @ 4900 N/A today. Will dyno with turbo tomorrow... 417 inches W9 head.

Re: boosted cams,post yours. [Re: RyanJ] #618515
08/06/10 10:24 PM
08/06/10 10:24 PM
Joined: Jan 2003
Posts: 1,020
Andrews,In. U.S.of A.
6
67_Satellite Offline
super stock
67_Satellite  Offline
super stock
6

Joined: Jan 2003
Posts: 1,020
Andrews,In. U.S.of A.
An "awesome" Crane powermax grind because that's what was in the engine when it was in the 66 Newport with 2.76 rear gears. .427" IN. .454" EX. 260-272 dur. 204-216@ .050 112 deg lobe sep. It will idle in gear at 550 r.p.m. 18"hg. in an 8.0:1 383 and pulls to 5400 r.p.m. with a single plane M1 at 8lbs. It'll have to do until something better falls from the sky.

Re: boosted cams,post yours. [Re: 67_Satellite] #618516
08/12/11 01:36 PM
08/12/11 01:36 PM
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
C
Clanton Offline
master
Clanton  Offline
master
C

Joined: May 2011
Posts: 4,489
northern,Ohio,USA


GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: boosted cams,post yours. [Re: Clanton] #618517
08/12/11 05:13 PM
08/12/11 05:13 PM
Joined: Feb 2003
Posts: 4,953
Houston, Texas
TheOtherDodge Offline
master
TheOtherDodge  Offline
master

Joined: Feb 2003
Posts: 4,953
Houston, Texas
Custom hydraulic roller: 220 duration, 520 lift, 114 lsa, 0 degrees of overlap.

If my stock block can hold it, see ya in the 9's!

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