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427 L88 timing?

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Old Feb 26, 2011 | 12:18 PM
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Default 427 L88 timing?
Hello

What Timing should a 2nd design L88 have?

I cant see what the numbers are on this decal....

http://www.zip-corvette.com/ProductD...GR-SR&CTitle=&


Someone knows? timing on idle and total timing?

Thanks
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Old Feb 26, 2011 | 04:35 PM
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There relatively easy to tune.....good gas is a must anf the totals can be 36-38 with most distributors rated at 24 degrees; so start off at 12 initial which will give you a total of 36 and the idle set at 850-900....No advance with a L88.......nice motor......
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Old Feb 26, 2011 | 04:43 PM
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Originally Posted by 70rs/ss396
Hello

What Timing should a 2nd design L88 have?

I cant see what the numbers are on this decal....

http://www.zip-corvette.com/ProductD...GR-SR&CTitle=&


Someone knows? timing on idle and total timing?

Thanks
Have you got a stock L88 distributor? Makes all the difference in the world.
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Old Feb 26, 2011 | 04:44 PM
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Old Feb 27, 2011 | 03:40 AM
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I have some experience with L88 cam ( and now zl1)

12 deg initial not enough. needs 18 . idle 1000 rpm

total 36-38 all in not higher than 2500 rpm
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Old Feb 27, 2011 | 12:40 PM
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Originally Posted by Mike Ward
Have you got a stock L88 distributor? Makes all the difference in the world.
No, Im going to run a MSD probillet distributor.
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Old Feb 27, 2011 | 12:42 PM
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Originally Posted by elle88
I have some experience with L88 cam ( and now zl1)

12 deg initial not enough. needs 18 . idle 1000 rpm

total 36-38 all in not higher than 2500 rpm
18 initial? Does it start whith that much?


Souldnt the total timing reach 36-38 later, when the cam starts to "run" (above 4000 rpm) ?
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Old Feb 27, 2011 | 12:45 PM
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On my 468 i had a locked dizzy, with 38 initial/total started no trouble. My new 355 has 20 initial. Starts great.
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Old Feb 27, 2011 | 01:19 PM
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Originally Posted by 70rs/ss396
No, Im going to run a MSD probillet distributor.
Then using stock settings with a different/unknown advance curve makes no sense.
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Old Feb 28, 2011 | 02:37 AM
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Originally Posted by 70rs/ss396
18 initial? Does it start whith that much?


Souldnt the total timing reach 36-38 later, when the cam starts to "run" (above 4000 rpm) ?

with less than 18 it doesn't idle ( this with the L88 cam)

Now I use the comp cam Zl1 nostalgia cam and it needs more than 18 initial and 38 all in at 1700 rpm ( dyno tuned ) idle is 1200 rpm.

Msd pro billet with lighest springs and 1700 rpm stop bushing. due to light springs, advance at idle is much more than 18. otherwise it doesn't want to idle

btw my former l88 cam was much easier at idle-advance tuning than the nostalgia ZL1

this is the link to my engine build thread. possibly of some help to you
http://forums.corvetteforum.com/c3-t...-thread-3.html
Last edited by elle88; Feb 28, 2011 at 02:42 AM.
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Old Feb 28, 2011 | 01:51 PM
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Thanks.

What oil can I run in a L88? I always run Quaker state 10W40 synthetic.......but in and old stock L88 ?, what to run?
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Old Feb 28, 2011 | 05:21 PM
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If it is a flat tappet then any oil that has high zddp.
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