lighting with lfp stage 2 heads

Lightning and Harley Davidson F150, powered by a supercharged 5.4L 2 valve engine
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valleysniper956
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lighting with lfp stage 2 heads

Post by valleysniper956 » Thu Sep 20, 2007 10:07 pm

can someone help me with a tune for this one??? is there a way i can tune it to work well with those heads? thats all the guy has aside from the cai anyway i can help him with a better tune dont want to loos him to a home competitor

valleysniper956
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Re: lighting with lfp stage 2 heads

Post by valleysniper956 » Sun Sep 23, 2007 1:06 pm

ok guys i dont know if any of you are online today but this customer is coming today and all i have is the special forces and he has no mods but the lightinig force stage 2 heads and he said that it runs smooth but he would run constent 14.4 1/4 times and with the new heads he runs 15.0 1/4 mile times what can it be besides he doesnt have a tune? a link to the lfp page would be helpfull to see what he has and well i want to have a good job done he is just 16 and he is coing with his dad :shock: so far im upping the spark and the fuel modifier see if it helps after that i dont know what else can help the heads???? what im afraid of is the damn vista software i tried tunining with it and it didnt work that well so yeah im afraid it wont work well any info???

Mattr66
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Re: lighting with lfp stage 2 heads

Post by Mattr66 » Sun Sep 23, 2007 10:36 pm

it all comes down to air fuel ratio...... without a wideband it is extremely difficult to tune a boosted vehicle.....

I wouldn't think it needs much more timing......

Matt R
Matt Robinson
Delta Force Gas and Diesel Tuner
www.gearheadautomotiveperformance.com

valleysniper956
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Re: lighting with lfp stage 2 heads

Post by valleysniper956 » Mon Sep 24, 2007 1:18 pm

well i dont have the datalogger so i dont know his a/f ratio but what he told me yesterday was that the truck is fine but its not running like it use to from a 14.4 it went to a 15.0 so yeah something is fishy there all i was going to do is all that i move plus the timing to a 1.5 maybe a 2. and the fuel what do you think should i leave it stock or up it a lil like a .9 over stock ??? the rest is going to what the owner wants but the guys dad told me the truck is staying stock :x except for the stage 2 heads lol well guys hope you help me this is one of the last trucks im tuning im counting my days to attend wyotech 8-) 8-) 8-) wyoming here i come :twisted: :twisted: off topic anybody know any cool places to see in wyoming like tuning shops or stuff like that???

Rhynotune
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Re: lighting with lfp stage 2 heads

Post by Rhynotune » Mon Sep 24, 2007 4:11 pm

Theres no ways about it, if you don't have an A/F ratio meter and a good one to boot, it's like the blind leading the blind.
Ryan
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Charlie
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Re: lighting with lfp stage 2 heads

Post by Charlie » Thu Sep 27, 2007 10:57 pm

valleysniper956 wrote:ok guys i dont know if any of you are online today but this customer is coming today and all i have is the special forces and he has no mods but the lightinig force stage 2 heads and he said that it runs smooth but he would run constent 14.4 1/4 times and with the new heads he runs 15.0 1/4 mile times what can it be besides he doesnt have a tune? a link to the lfp page would be helpfull to see what he has and well i want to have a good job done he is just 16 and he is coing with his dad :shock: so far im upping the spark and the fuel modifier see if it helps after that i dont know what else can help the heads???? what im afraid of is the damn vista software i tried tunining with it and it didnt work that well so yeah im afraid it wont work well any info???

Just an old school tip...
Bigger cams and no stall = slower times.

Charlie
99 Lightning Rebuilt and tuned by me! 7.86 1/8th @ 89MPH
I am no professional tuner. The information I share here is from my personal experience with my truck. Your application may be different. There for your results may be different.

lightning666
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Re: lighting with lfp stage 2 heads

Post by lightning666 » Fri Sep 28, 2007 12:05 am

I don't think it has cams. Maybe the cams werent degreed correctly?
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Charlie
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Re: lighting with lfp stage 2 heads

Post by Charlie » Sat Sep 29, 2007 6:07 pm

Sorry I saw the stage II and I assumed. I have the stage II heads and cams, and no stall. My 60 ft times stink. But not for long. Stall is on it's way!

As far as being degreed in.... If they are stock cams they are not adjustable. And it would be unlikly that they where installed wrong. The marks are very easy to line up. But I guess some one could have got it wrong.

Charlie
99 Lightning Rebuilt and tuned by me! 7.86 1/8th @ 89MPH
I am no professional tuner. The information I share here is from my personal experience with my truck. Your application may be different. There for your results may be different.

valleysniper956
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Re: lighting with lfp stage 2 heads

Post by valleysniper956 » Wed Oct 10, 2007 10:14 pm

i made this lightining a second faster from a 15.2 to a 14.2 but... he is runing lean i found out from my guru pat :mrgreen: that he needs bigger injectors anybody got any used set of injectors???? for a stock block with stage 2 heads? and no mods?

Dcwarz
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Re: lighting with lfp stage 2 heads

Post by Dcwarz » Fri Oct 12, 2007 11:52 am

His stock 42# injectors should be fine. Mine were with a 6# lower, ported Eaton and a bunch of bolt on's.

Running a 14 second pass sounds a little high also. Back in 2002 with 2K miles on my stock L I ran a 13.6 in 60 degree weather.

What year is his L? How many miles on her?

His 60 foot should be 2.0 ~ 2.1 with stock tires.

Something is not right about running a 15.0 pass unless you are smoking the tires at the start.

Stock L's have WOT A/F 10.0, with timing 14 degrees if I remember right.
Dennis W.
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