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LS1 intake installed engine runs but.. Tuning?

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Old 01-26-2011, 09:09 PM
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Congrats man,it looks great should have came stock like that!
Old 02-03-2011, 10:54 PM
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Got my Perdator U7191 a few days ago. Took the car out for a drive today, and did some data logging. I just added 2% to my LTFT's and wow... what a differance! I still need to do some more logging but I need to give the computer a chance to learn before I make any more adjusments. So far so good!!! (Knock on metal.. lol)
The engine really screams after about 5000 RPM. The top end pull is night and day. 2nd gear still sucks *****, though.. This is due to the gearing I'm sure.
Also, with my TB adapter/spacer, I now have that god dang tb whistle. Lame!
Vacuum in park is a rock soild 19-19.8 Hg and 18.4-19 Hg in drive. I'm pretty stocked right now.
I need gas money.....
Old 02-05-2011, 10:48 AM
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Did a few more logs with my Predator and found out that I was running way too rich! I had to adjust the injector slope +9. The engine is much more snappier with these settings and the topend pull is massive. 2nd gear is NOT A DOG anymore.
I can't wait to get Lew involved within the next week or two.
Got my N20 to put on next. I'm going to run a 75HP shot thru 2nd gear with a window switch. I hate the primary size of the DT headers but with N20 the motor will love them.
Intake swap should be the first mod!
Old 02-05-2011, 12:07 PM
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Sounds like you are having alot of fun! Your posts are getting me motivated to finish my car.
Old 02-05-2011, 03:58 PM
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Originally Posted by 707chance
Sounds like you are having alot of fun! Your posts are getting me motivated to finish my car.
Yeah.. get tuned ASAP! I just started logging my WOT runs, and the Diablo timimg tune is really agressive! I'm sure, that my milled heads aren't helping. I just pulled 2* from 4000-7K rpm. I need to get a wide band too. I finally got my LTFT's dialed in (-2) and after logging my WOT runs, AF rato shows 11.5:1 on DSlogredux (3rd party app co. created by lew) However... afer looking at my O2 voltage, I'm .89-.9 in 2nd up till 5000 rpm then I drop into .85 (lean) all the way into 3rd@110mph. Leaning out a little on the topend.
Engine is so much more stronger, and I love.... my stock cam even more with this LS1 intake. Gotta keep playing with my tune. Burned up a tank of gas already



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