12 valves, single turbos, time slips here

last time i checked it (4790lbs). its got a nice cam and some head work done. i leave the line at 2500 to 2600rpm and it will pull to 5k.
 
dzlfarmboy said:
You picked up 4MPH with just a timing bump? Thats pretty substantual, what degree where you at with both runs. Guessing the slower time with the higher MPH was just from a not so good launch with a slower 60ft time.
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I bumped my timing from 23 to 25 and pulled the middle spring back out of the 4kgsk.

Bponci said:
Tires yes. head no! At what boost are you launching at? What gear raio and tire size? When are you locking it up? Whats your truck weigh? Whats your exit rpm at the end of the track? Sorry for all the question but i might be able to help some.
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Thanks Brad, any ideas would be appreciated. The heads cracked near the injectors leaking coolant if I lean on it hard.I've launched anywhere from 10-20 psi, but usually about 15. I'm running 265/75/16 stock michelin's with 3.55's. The truck locks up at 20mph with a suncoast proloc. I cross through the traps around 3000-3100 rpm. The truck weighs 6850.
 
60'

BigDodge said:
it was 6.41@110mph.
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Thats right on track with where mine ran with close to those 60's.
High 1.4x's low 1.5x's was usually in the 6.3x-6.4x's
Drop that 60' down in the mid 1.3x's and watch the e.t
drop into the teens and twentys. The first 60' is everything.
Ryan
 
97singlecab said:
What size exhaust housing is on that turbo if you don't mind sharing.
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we use an 1.0 and 1.10ar. i have played with a .90.
we went 6.32@114.8mph with a 1.57 60ft last night.
after that passes all 5 disks in the converter are welded together. going over to the shop to pull it apart now. seee if we cant fix this crap.
 
BigDodge said:
we use an 1.0 and 1.10ar. i have played with a .90.
we went 6.32@114.8mph with a 1.57 60ft last night.
after that passes all 5 disks in the converter are welded together. going over to the shop to pull it apart now. seee if we cant fix this crap.
Click to expand...

You gate this charger? I take it you didn't like the .90?
 
1.59 60'
8th- 7.20@94
1/4- 11.40@116
Single 66mm Turbonetics, diesel only, nothing else. Stock 3/4 ton suspension with traction bars, 2 wheel drive.
 
it runs

she ran good last night. we went to alabama int dragway in Steele. the track guy said "track was not very good tonight".
 

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Holy chit! :bow:

Was that a fuel pass or on the gas?

Keep it up man
 
BigDodge said:
she ran good last night. we went to alabama int dragway in Steele. the track guy said "track was not very good tonight".
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9.68 @ 140 mph, your truck is incredible!

How much boost are you seeing with that S475? How long does it take to spool at the line, do you have any video?
 
9 LIVES said:
Holy chit! :bow:

Was that a fuel pass or on the gas?

Keep it up man
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That was with a Bullseye power S480R single and a 100hp shot.
Next week will have a set of Big set of Bullseye Power twins.
With the S480 it will lite fast. i would say no more then 10 sec to be at 30psi. i got one video from last night but it hard to see. but i will try to get it posted.
 
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