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Stroker HEMI. initial and total timing #348694 06/16/09 07:28 AM 06/16/09 07:28 AM
Joined: Jan 2007 Posts: 153 Wpg, Mb, Canada S six-barrel OP member
six-barrel OP member S Joined: Jan 2007 Posts: 153 Wpg, Mb, Canada	So, what are you running for initial and total timing. My Engine specs 4.15 stroke 9.5:1 HEMI. 250 int 257 exh @50 Hyd roller cam. I read for that duration of cam 18-20 initial 35 total. What are you finding that works?

Re: Stroker HEMI. initial and total timing [Re: six-barrel] #348695 06/16/09 08:04 AM 06/16/09 08:04 AM
Joined: Jan 2003 Posts: 13,404 Marion, South Carolina [><] an8sec70cuda I Live Here
an8sec70cuda I Live Here Joined: Jan 2003 Posts: 13,404 Marion, South Carolina [><]	34-35 degrees total. All in REAL early, might as well be locked out. CHIP 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

Post deleted by Defbob [Re: an8sec70cuda] #348696 06/16/09 09:18 AM 06/16/09 09:18 AM
A Anonymous Unregistered
Anonymous Unregistered A

Re: Stroker HEMI. initial and total timing #348697 06/16/09 01:19 PM 06/16/09 01:19 PM
Joined: Jan 2003 Posts: 6,392 nielsville, minn. Q quickd100 master
quickd100 master Q Joined: Jan 2003 Posts: 6,392 nielsville, minn.	On my 528 I run 30 degrees initial with 5 degrees mechanical all in by 2000. My cam is 272/274@.050, it idles at 900rpm. Dave

Re: Stroker HEMI. initial and total timing [Re: six-barrel] #348698 06/16/09 06:54 PM 06/16/09 06:54 PM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: So, what are you running for initial and total timing. My Engine specs 4.15 stroke 9.5:1 HEMI. 250 int 257 exh @50 Hyd roller cam. I read for that duration of cam 18-20 initial 35 total. same combo as yours. 32 degrees total,with 34 degrees car slowed down a little. distributor locked out What are you finding that works? 5297017-63plymouthmaxwedgeatATCO4.26.09588.jpg (82 downloads)

Re: Stroker HEMI. initial and total timing #348699 06/17/09 07:32 AM 06/17/09 07:32 AM
Joined: Jan 2003 Posts: 2,521 Richmond Va, KeislerTKO 60... V VanishPt master
VanishPt master V Joined: Jan 2003 Posts: 2,521 Richmond Va, KeislerTKO 60...	new Larry Sheppard book says 35* on a stock 426,( but in another chapter it says 32* ) . Then it says you should be looking at 28-32 for the 472-528 motors. The way I read the article, it indicates that the longer the stroke, the less the timing. I set my 4.5" stroke 511 from 35* down to 32. Runs good , but i cannot say if is quicker or slower. I run about 20 initial Cam is a 244/254 112 hyd flat

Re: Stroker HEMI. initial and total timing [Re: VanishPt] #348700 06/17/09 07:54 AM 06/17/09 07:54 AM
Joined: Jan 2003 Posts: 13,404 Marion, South Carolina [><] an8sec70cuda I Live Here
an8sec70cuda I Live Here Joined: Jan 2003 Posts: 13,404 Marion, South Carolina [><]	Trying to generalize timing settings based off the stroke and nothing else is a bunch of crap. Mine has a 4.5" stroke and runs the best at 34-35 degrees. Any less and it slows down substantially. I tested it from 30-38 degrees back when I first put this motor in the car. And yes I've tried it with more than one timing light. CHIP 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: Stroker HEMI. initial and total timing [Re: VanishPt] #348701 06/17/09 08:00 AM 06/17/09 08:00 AM
Joined: Mar 2008 Posts: 764 NW Pa. KD800X super stock
KD800X super stock Joined: Mar 2008 Posts: 764 NW Pa.	A lot has to do with the compression you're running, the cam timing, etc. etc. Our 498 likes 32-33 deg, but we're running a lot of compression. If your not sure, start at 30 deg and work your way up to where it lays over at the finsih line, or slows down. Then bump it back one. You will probably end up in the 32-34 deg range, but every combination is different.

Re: Stroker HEMI. initial and total timing [Re: KD800X] #348702 06/17/09 09:08 AM 06/17/09 09:08 AM
Joined: Dec 2007 Posts: 12,592 Great Neck,LI,new york hemi-itis I Live Here
hemi-itis I Live Here Joined: Dec 2007 Posts: 12,592 Great Neck,LI,new york	I run a Holley Prostrip that has the ability to program the timing every 500 RPM.Is there an advantage to more timing in the lower RPM range and retarding as the rpm increases??The MSD digital systems also have the ability to change individual cylinder timing.How would you guys set up the ramp up & down? Last edited by hemi-itis; 06/17/09 10:16 PM. HEMI-ITIS has no cure. My condition is fully BLOWN!!

Re: Stroker HEMI. initial and total timing [Re: hemi-itis] #348703 06/17/09 10:21 PM 06/17/09 10:21 PM
Joined: Dec 2007 Posts: 12,592 Great Neck,LI,new york hemi-itis I Live Here
hemi-itis I Live Here Joined: Dec 2007 Posts: 12,592 Great Neck,LI,new york	Quote: I run a Holley Prostrip that has the ability to program the timing every 500 RPM.Is there an advantage to more timing in the lower RPM range and retarding as the rpm increases??The MSD digital systems also have the ability to change individual cylinder timing.How would you guys set up the ramp up & down? Nobody?????????????????????? HEMI-ITIS has no cure. My condition is fully BLOWN!!

Re: Stroker HEMI. initial and total timing [Re: hemi-itis] #348704 06/18/09 06:33 AM 06/18/09 06:33 AM
Joined: Jan 2003 Posts: 2,521 Richmond Va, KeislerTKO 60... V VanishPt master
VanishPt master V Joined: Jan 2003 Posts: 2,521 Richmond Va, KeislerTKO 60...

Re: Stroker HEMI. initial and total timing [Re: VanishPt] #348705 06/18/09 06:46 AM 06/18/09 06:46 AM
Joined: May 2004 Posts: 3,210 robin hood country deaks master
deaks master Joined: May 2004 Posts: 3,210 robin hood country	This also interests me, my cam is .280@50 and i'm swapping to msd distributor but would like to avoid locking it out, fbo do bushes to increase initial to 24, will this be enough, i run 34 total. Sorry to hijack, just thought this extra info would help everyone. 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

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