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Author Topic: 454 timing  (Read 6326 times)

Offline micahadams

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454 timing
« on: April 28, 2010, 09:28:44 pm »
Does anyone else have a hard time starting(starter turning slow) w/ 15 degrees initial timing?
« Last Edit: April 28, 2010, 11:33:09 pm by micahadams »
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Offline Josh454

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Re: 454 timing
« Reply #1 on: April 29, 2010, 05:24:04 pm »
Wouldn't think so but then again what is your compression?  Are you running headers?
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Offline micahadams

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Re: 454 timing
« Reply #2 on: April 29, 2010, 11:32:10 pm »
C/R is 8.5 and yea i have some thorley tri y's

Im going to put in a 2nd battery and see if that helps(came factory w/ 2 batteries)
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Offline beastie_3

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Re: 454 timing
« Reply #3 on: April 30, 2010, 12:40:02 am »
take your batteries and starter in and get them tested for free before you start dumping money
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Offline joesgarage71

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Re: 454 timing
« Reply #4 on: April 30, 2010, 02:04:28 am »
does it crank any faster if you move it to 4*?? If not
Make sure all the conections are clean, the battery is charged, grounds are good. if it still cranks slow I'd say the starter is junk. bushing worn out, armature is rubbing on the Field windings.
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78' K-20 355/SM465/twin stick 205 6" on 36's
14 bolt FF/big bearing Dana 44 4.56 gears
92' GMC C-1500 454/4L80E/14 bolt

Offline micahadams

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Re: 454 timing
« Reply #5 on: April 30, 2010, 07:30:44 pm »
Yea it cranks much better with less timing.
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Offline joesgarage71

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Re: 454 timing
« Reply #6 on: May 01, 2010, 05:48:13 am »
 something ain't right it shouldn't need that much timimg. timing chain worn, weights in the dist. rusty?

Balancer could be slipping on the rubber band.
« Last Edit: May 01, 2010, 06:18:47 am by joesgarage71 »
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78' K-20 355/SM465/twin stick 205 6" on 36's
14 bolt FF/big bearing Dana 44 4.56 gears
92' GMC C-1500 454/4L80E/14 bolt

Offline micahadams

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Re: 454 timing
« Reply #7 on: May 01, 2010, 01:29:14 pm »
The HEI will only centrifical advance 20 degrees. So to get 35 total I need 15 initial. Motor is brand new w/ a brand new SFI balander

Adding the 2nd battery helped big time. It will crank much better now
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Offline malibu795

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Re: 454 timing
« Reply #8 on: May 01, 2010, 08:32:32 pm »
what are your battery cables like?
good grounds? perosnally i run a dedicated ground form the engine block to battery
a stock OEM starter should roll a 8:1 engine over no problem
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adam wildman
75 K25 383/400
79 malibu 454/T56 305rwhp/432rwtq 15.6@92.8mph
02 2500HD D-max/allison best time 13.77 @ 99mph 463rwhp/930rwtq

Offline bgctrading

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Re: 454 timing
« Reply #9 on: May 03, 2010, 05:55:34 pm »
I never use anything but a good gear reduction starter anymore.
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Offline drag80

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Re: 454 timing
« Reply #10 on: May 03, 2010, 11:24:41 pm »
i'm using a smaller GM gear reduction starter, and it turns over my 10.5 to 1 compression 468 with ease, and i even have the distributor locked out, so it starts at 36 degrees timing.
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