Auto bogging off the line

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May 10, 2013 | 12:10 PM

Cool28

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From: Barto PA

Auto bogging off the line

Mods in sig. I'd think with a 3200 stall I wouldn't bog. I was hitting 2.05 60ft all day. Dead hooking on the 335s. No knock at all during the run lterms looked good. Just wondering if I need more timing to get it going better.

Ran best
2.05
81 mph in the 1/8th
13.5@105

Any ideas as far as tuning?

May 10, 2013 | 07:14 PM

BLK02WS6

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From: on the dyno tuning in MD

You can't use LTFTs to determine if fueling is good during WOT - you need to tune fueling in open loop with a wideband. And as far as timing, hard to say without knowing what timing you are currently running... timing has to be tuned on a dyno to determine what timing the engine wants throughout the RPM range.

May 10, 2013 | 07:18 PM

Cool28

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From: Barto PA

Ok got a wideband coming and going to run a auto ve and see if its good

May 10, 2013 | 07:27 PM

BLK02WS6

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From: on the dyno tuning in MD

You using EFILive? If so, post your tune up and we can take a look at it...

May 10, 2013 | 08:01 PM

Cool28

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From: Barto PA

Ya I can then

May 11, 2013 | 06:30 AM

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From: Waterloo, Ontario

The 4L80E doesn't have the same 1st gear as the 60E and you have 3.00 rear gears. Need more power or more gear.

May 11, 2013 | 07:40 AM

BLK02WS6

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From: on the dyno tuning in MD

I didn't even notice that - 3.00 gear is killing you - why would you build a 9" with a 3.00 gear when you have overdrive? 3.73 is what I would go with...