View Full Version : track tonight lost .18 e/t


jethro81z28
Oct 16th, 04, 08:52 PM
Best tonight was 12.50 @106.94
60 1.72
330 5.05
1/8 7.91
1/8 85.75
1000 10.39
1/4 12.50
1/4 106.94
The only change I made was from 84 rear jets to 82 and my stock tach seems to act up after 5000 could be not shifting at the right rpm (had to count on my ears)but could that make a big diffrence?
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jethro81z28
Oct 16th, 04, 08:56 PM
http://community.webshots.com/user/jethro81z28

BillK
Oct 17th, 04, 04:47 AM
jethro,
That much of a change could even be weather related. Shifting by ear is not very accurate and you certainly could have caused a couple of tenths difference there also. Get a good aftermarket tach, you will be amazed at the difference it can make.

Bink
Oct 17th, 04, 08:00 AM
Saw you were from silsbee, What track do you run at? Have you been to Pine Valley Raceway in Lufkin?

Eric68
Oct 17th, 04, 08:52 AM
If the weather is getting colder and you went leaner on the jets you are probably running a little lean. Usually an engine will want more jet in cooler weather, not less.

jethro81z28
Oct 17th, 04, 10:30 AM
Den bruce speedway Evadale. Last week I had my 84 jets and ran a 12.54@ 107.55 with a 1.82 60' droped the jet and went slower but faster time ,my 60' was 1.82 but my best60' that night was a 1.72.