5.3 and 150 pills
#33
Originally Posted by dirt_track_racer_81
by the way i ran 91 mixed with 111 octane LEADED gas..my truck has no o2's to worry about
#35
Originally Posted by maddboost
What do you mean your car has no 02's to worry about? If you ran any FI car without ANY 02 sensors your asking for trouble.
#36
Originally Posted by Black X
200 shot on a 5.3L here. Cam only with rod bolts... 491RWHP runs 11.27@123. OR 7.14@99 for you half trackers... I 60'd a 1.57 on my best.
110 Fuel and 22* timing no knock.
110 Fuel and 22* timing no knock.
#37
yah me with smaller shot, more wieght, and 93 I run 27 on my gt2-3 cam. stock cam with same shot (125) I was running 29.
I would be willing to be just bumping timing you would see a good bit of gain.
I would be willing to be just bumping timing you would see a good bit of gain.
#38
Originally Posted by dirt_track_racer_81
speed density tune with a EFI Live custom operating system, no maf no o2's..A/F runs exsactly what its commanded to
#39
Originally Posted by maddboost
With speed density you still need an 02 sensor to check the A/F ratio. Just because its programmed to be a certain A/F ratio doesnt mean it is, thats what the 02 sensor is for to check and make sure the A/F ratio is good. That could be why your motor looks the way it does.
#40
Thread Starter
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From: Cleveland, TN
Originally Posted by loud5.3
So who's money are you planning on taking. this is vortec327 from Streetcar. 


Anyhow he backed out as soon as he asked to race for 500 and I said yes
Oh well, I should just took his 200 and then played double or nothing. Anyhow, I should have the truck to the track in the next few weeks to see how it does
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TimDave217
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