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timing for a mild 360 #492587 10/09/09 05:36 PM 10/09/09 05:36 PM
Joined: Apr 2007 Posts: 375 NE Oklahoma 7 71valiant OP enthusiast
71valiant OP enthusiast 7 Joined: Apr 2007 Posts: 375 NE Oklahoma	360 stock pistons headers airgap- carter 625 afb I was running it at 35 but it was hard to start after it got hot. I set it back down to 30 and it starts alot better hot. Where do yall run your timing?

Re: timing for a mild 360 [Re: 71valiant] #492588 10/09/09 06:37 PM 10/09/09 06:37 PM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	I run 34 on the street 360 and it is fine. They are all going to be different. Mine has a Crower 267/271 cam in it with stock pistons and headers. Try it at 33 and see what happens. Is your distributor recurved so that the mechanical advance is fully advanced at the desired RPM. If not if your are measureing 35 degrees at say 25 hundred you will have too much initial becaue the advance is not fully extended and still advancing at a much higher RPM. Clean it, if it's Dirty. Oil it, if it Squeaks. But: Don't fix it, if it Works!

Re: timing for a mild 360 [Re: 71valiant] #492589 10/09/09 07:21 PM 10/09/09 07:21 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	35 total is making your initial too much & causing the labored cranking. I'd shorten the slots so you can start at ~10BTDC (depending on your cam) & still maintain 35 total(vac adv disconnected/plugged). live every 24 hour block of time like it's your last day on earth

Re: timing for a mild 360 DELETED [Re: RapidRobert] #492590 10/09/09 07:33 PM 10/09/09 07:33 PM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	Post deleted by MoparforLife Clean it, if it's Dirty. Oil it, if it Squeaks. But: Don't fix it, if it Works!

Re: timing for a mild 360 [Re: MoparforLife] #492591 10/09/09 07:35 PM 10/09/09 07:35 PM
Joined: Apr 2007 Posts: 375 NE Oklahoma 7 71valiant OP enthusiast
71valiant OP enthusiast 7 Joined: Apr 2007 Posts: 375 NE Oklahoma	Quote: I agree with the too much initial but for the reason I stated above. I have set a lot stock and higher compression engines at 35 total with 15 initial and not had a problem with hard warm starting. I haven't heard yet if the distribor is a recurve MP model or a stock distributor. If stock and testing for total at a low RPM will/may give a lot more initial thaan 15. This is stock electronic. I tested it at idle.

Re: timing for a mild 360 [Re: 71valiant] #492592 10/09/09 07:39 PM 10/09/09 07:39 PM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: 360 stock pistons headers airgap- carter 625 afb I was running it at 35 but it was hard to start after it got hot. I set it back down to 30 and it starts alot better hot. Where do yall run your timing? so like 7.5-8.0:1 cr in that 360? run as much initial as you can and limit the amount of mech. advance. mabey try 15-17deg initial and 20deg mech. should get you where you need to be. that hot start prob could be many things not related to timing.

Re: timing for a mild 360 #492593 10/09/09 07:47 PM 10/09/09 07:47 PM
Joined: Apr 2007 Posts: 375 NE Oklahoma 7 71valiant OP enthusiast
71valiant OP enthusiast 7 Joined: Apr 2007 Posts: 375 NE Oklahoma	Quote: Quote: 360 stock pistons headers airgap- carter 625 afb I was running it at 35 but it was hard to start after it got hot. I set it back down to 30 and it starts alot better hot. Where do yall run your timing? so like 7.5-8.0:1 cr in that 360? run as much initial as you can and limit the amount of mech. advance. mabey try 15-17deg initial and 20deg mech. should get you where you need to be. that hot start prob could be many things not related to timing. Forgot to add it has a 480/480 lift 292/292 duration 230@.050 cam. I put a mopar thin head gasket. I must have atleast 8:1 CR

Re: timing for a mild 360 [Re: 71valiant] #492594 10/09/09 08:00 PM 10/09/09 08:00 PM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: Quote: Quote: 360 stock pistons headers airgap- carter 625 afb I was running it at 35 but it was hard to start after it got hot. I set it back down to 30 and it starts alot better hot. Where do yall run your timing? so like 7.5-8.0:1 cr in that 360? run as much initial as you can and limit the amount of mech. advance. mabey try 15-17deg initial and 20deg mech. should get you where you need to be. that hot start prob could be many things not related to timing. Forgot to add it has a 480/480 lift 292/292 duration [Email]230@.050[/Email] cam. I put a mopar thin head gasket. I must have atleast 8:1 CR that cam will bleed off ALOT of dynamic cr. good luck with that. TIMING is NOT gonna fix it.

Re: timing for a mild 360 #492595 10/09/09 08:08 PM 10/09/09 08:08 PM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	We have no idea what the initial is unless I missed something, we also don't know at what RPM he is setting the total at or if the advance has had the sprngs modified to bring the total in earier than a stock distributor. If it hasn't the initial may be too much in order to get the 35 total at a low RPM. Stock advance will be know where near fully advanced at a lower RPM so alot of initial will be need to make up the difference + it will still be advancing well past that mark.

Re: timing for a mild 360 [Re: 71valiant] #492596 10/09/09 08:10 PM 10/09/09 08:10 PM
Joined: Nov 2006 Posts: 1,458 oklahoma F forphorty pro stock
forphorty pro stock F Joined: Nov 2006 Posts: 1,458 oklahoma	Quote: Quote: I agree with the too much initial but for the reason I stated above. I have set a lot stock and higher compression engines at 35 total with 15 initial and not had a problem with hard warm starting. I haven't heard yet if the distribor is a recurve MP model or a stock distributor. If stock and testing for total at a low RPM will/may give a lot more initial thaan 15. This is stock electronic. I tested it at idle. You had 35 degrees at idle? If so, and you have a stock distributor, you probably have 50+ total. Too much.

Re: timing for a mild 360 [Re: forphorty] #492597 10/09/09 08:31 PM 10/09/09 08:31 PM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	Quote: Quote: Quote: I agree with the too much initial but for the reason I stated above. I have set a lot stock and higher compression engines at 35 total with 15 initial and not had a problem with hard warm starting. I haven't heard yet if the distribor is a recurve MP model or a stock distributor. If stock and testing for total at a low RPM will/may give a lot more initial thaan 15. This is stock electronic. I tested it at idle. You had 35 degrees at idle? If so, and you have a stock distributor, you probably have 50+ total. Too much. Even if he checked the total of 35 degrees at 2500 it would still have way too much initial because it would still have a lot of advance to go, requiring the initial to be upped to make up for the advance that the mechanical advance has not been used yet. To get a true total advance at a lower RPM the distributor mechanical advance must be recurved.

Re: timing for a mild 360 [Re: MoparforLife] #492598 10/09/09 08:36 PM 10/09/09 08:36 PM
Joined: Jan 2003 Posts: 32,942 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,942 Grand Prairie,Texas	Way too much timing at idle. You are checking it with the vacuum disconnected and plugged aren't you? I would think 15-18* at idle with 35* at 2500rpm.

Re: timing for a mild 360 [Re: stumpy] #492599 10/09/09 08:52 PM 10/09/09 08:52 PM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	Quote: Way too much timing at idle. You are checking it with the vacuum disconnected and plugged aren't you? I would think 15-18* at idle with 35* at 2500rpm. Needs a recurved distributor to do it though or like I said above the initial will have to make up for the lack of the mechanical not being fully advanced. Clean it, if it's Dirty. Oil it, if it Squeaks. But: Don't fix it, if it Works!

Re: timing for a mild 360 [Re: MoparforLife] #492600 10/09/09 08:55 PM 10/09/09 08:55 PM
A Anonymous Unregistered
Anonymous Unregistered A	timing isnt gonna help. he has waaaaay to much cam!

Re: timing for a mild 360 #492601 10/09/09 09:14 PM 10/09/09 09:14 PM
Joined: Apr 2007 Posts: 375 NE Oklahoma 7 71valiant OP enthusiast
71valiant OP enthusiast 7 Joined: Apr 2007 Posts: 375 NE Oklahoma	Quote: timing isnt gonna help. he has waaaaay to much cam! It runs good. Very streetable motor. I've run a 13.20@102 at the track.

Re: timing for a mild 360 [Re: 71valiant] #492602 10/09/09 09:18 PM 10/09/09 09:18 PM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	Quote: Quote: timing isnt gonna help. he has waaaaay to much cam! It runs good. Very streetable motor. I've run a [Email]13.20@102[/Email] at the track. I have seen a lot more cam than that run great in a low compression small or big block.

Re: timing for a mild 360 #492603 10/09/09 09:20 PM 10/09/09 09:20 PM
Joined: Apr 2007 Posts: 375 NE Oklahoma 7 71valiant OP enthusiast
71valiant OP enthusiast 7 Joined: Apr 2007 Posts: 375 NE Oklahoma	Quote: timing isnt gonna help. he has waaaaay to much cam! I think it really does need a recurved distributer.

Re: timing for a mild 360 [Re: 71valiant] #492604 10/09/09 09:44 PM 10/09/09 09:44 PM
A Anonymous Unregistered
Anonymous Unregistered A	well i bow down to you guys who run big cams and no compression. takes big kahunas to give up a second in ET (give or take a few tenths).

Re: timing for a mild 360 #492605 10/09/09 10:25 PM 10/09/09 10:25 PM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	Quote: well i bow down to you guys who run big cams and no compression. takes big kahunas to give up a second in ET (give or take a few tenths). That's not a very big cam. IMO It's got some duration but not a whole bunch of lift. I was running low 12.0's with 485/495 & 284 duration with stock pistoned, cast unported 1.88 valve heads, LD4B intake and 750 Holley. Went to KB107 pistons, LD340 with Chuck Nuytenn prepped 750 and consistant low 11.70's. Not a second by a long shot. Added Hughes stage 1 heads and cam 11.75 true calculated compression, shed a bunch of weight and still haven't gained said second.

Re: timing for a mild 360 [Re: MoparforLife] #492606 10/09/09 10:37 PM 10/09/09 10:37 PM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: Quote: well i bow down to you guys who run big cams and no compression. takes big kahunas to give up a second in ET (give or take a few tenths). That's not a very big cam. IMO It's got some duration but not a whole bunch of lift. I was running low 12.0's with 485/495 & 284 duration with stock pistoned, cast unported 1.88 valve heads, LD4B intake and 750 Holley. Went to KB107 pistons, LD340 with Chuck Nuytenn prepped 750 and consistant low 11.70's. Not a second by a long shot. Added Hughes stage 1 heads and cam 11.75 true calculated compression, shed a bunch of weight and still haven't gained said second. big enuff cam for the DYNAMIC cr. i also said give or take a few tenths. my example: and 8:1 400 bbd went 14.20's. did nothing for the next season except up the cr to 9.75 and went 13.0's. that was also with a 230 cam. mpg's went up too. go figure. but hey... each combo is different. but it all boils down to the tuner. no need to chase your tail when you dont hafta.

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