LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Dyno'd car today

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Old Mar 31, 2004 | 07:18 PM
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Larnach's Avatar
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Joined: Jul 2002
Posts: 816
From: San Diego PB
Dyno'd car today

330.9rwhp @ 5760rpm and 333.9rwtq @ 4520rpm

Well I finally got around to a dyno tune, boy did the car need it. Well originally I was running from 15:1 to 17:1 A/F ratio all throughout the powerband, and a very very rich idle.

So, I got about 14 pulls in and the tuner did a bunch of good stuff while he was at it, however, my injectors are maxed out and we still can't get the A/F ratio in the 5000+rpm range to stay in the 13's at all! We attributed that to a fuel pump on the way out, does this sound reasonable to anybody else?

The cylinder head work is very minor, I wouldn't even call it work, just cleaned up and a port match which doesn't really do much of anything.

I'm happy with the numbers for now, there might be a little more room to work with once I'm able to get the A/F ratio into the range I want it to be. Ray @ Dyno Labs really did a number on the overall feel of the car, it pulls only slightly harder, but the idle is much smoother, no more fuel smell at idle etc. etc.

http://www.siknor.com/Dyno.jpg

Now all I need are some track times.
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