So my sister's boyfriend has a 6.4 and just got it tuned ,I believe he said h and s tune 310hp and deleted ,other wise stock. Was wondering what you think my odds of winning against him would be. I know there not slow trucks and are easy to gain hp with. I think my sig has all the info on my truck other then its a single cab. Thanks
Sig didn't show up. But if you don't have a built trans and can't launch in 4wd & he isn't lifted to the sky your gonna have a hard time. My friend has a Spartan tuned 6.4 & it gets down. Its always in the shop but runs good when on the road
Exergy sportsman pump
30 over injectors
Headstuds
Lift pump 165 air dog
Tie rod sleeves
Fully built ppe trans billet everything
Bigger front rear drive shaft with splicer u joints
Boost valve.
4in mbrp exhaust
Mbrp down pipe
Torque converter lock
Efi live dsp 5 max effort tube
Turbo has wicked wheel
Merchant motor mounts
And I think it's gear ration is 373
I have a go pro so no excuse to not get a good video. Only bad thing is winter and he don't want to race till summer by then I'll hopefully have a nice turbo set up. Just wanted to get some thoughts on it and if there's anything I should change. Also any recommendations on a turbo set up with my mods above would be great.
Lots to think about when picking a turbo. Do you tow often, give up spool for top end, preference on twins or single, how hard do you want to push stock bottom end, budget? Might have to swap converter to suit turbo selection. I still haven't answered any of those questions myself & hence still have a stock turbo.
Yea exactly what I was thinking about that's why haven't jumped at a turbo yet.
Towing no not really.
Truck pulling I will be doing.
Drags I'll be doing.
I have precision converter.
No preference on single or twin turbo.
I want a good 700 hp range and don't want it to be really laggy or needing it to build boost forever.
If engine blows Id have it done right and build bottom end. For now not worried about it.
Yep that's what I thought. I can run him the way I'm set up now.his truck is crew cab so got little less wait to boat around. We will see what he says it will be recorded either way.
So in 4high how fast can i go or does it not matter? I guess I only have 1/8 mile track around the area just curiouse if there's do and don't s in 4 high. Also what gear would you guys start out in, i usually just do it in drive without tow haul.
I have an 08 6.4 (stock height/tires but with camper)in the shop now with blown gaskets, but it made it over 120k on the Spartan 275 horse. Even with bad gaskets and low boost, it would still smoke my LML on the max effort tune (on 35s). Those things will get with it off the line, but the trans is weird and shifts funky when pushing it hard.
I have confidence in my duramax, he has his shift points defueling, his truck weighs more I have single cab. My buddy walks them and he has the same setup other then short box. And I'm still on stock tires and height. Guess if he decides to race we will see.
My buddy has a 08 6.4 Spartan tuned. He's got studs and gaskets. We tried drag racing but his trans was all fucked up. He's going to get it fixed this winter supposedly. He sent me a link to a forum and guys are running like 12.4-12.8's even on 35s and 37s with the Spartan 310 tune.
H&s isn't as good as Spartan or sct I believe. I know Spartan tunes are hard on transmissions. The 6.4s can move though. They have the air and fuel but stretch head bolts easily. To the op though your lb7 should take it for sure. I was looking at different threads and a lot of guys say they run 12.8's - 13.5 depending on tires etc. I hope my buddy gets his trans re built this winter. His 6.4 310 tune should be about dead on with my max effort 230 built trans.
Just to clear things up here. I find it hard to believe anybody is running a 12.4 stock everything 6.4. I have one and mine my best is 12.903 @104. I'm on stock fuel, stock trans and I'm running a batmowheel in the low pressure turbo. Also had 420s, traction bars and dropped two inches, Ccsb weighed in at 8160. I've only made 6 runs total so I'm sure with some weight loss and some more practice I could get a couple tenths faster. 12.8- 13.4 is what most tuned only 6.4s will run depending on tires. H@s is arguably the best tuner for the 6.4 as you can run custom tunes with it. Spartan is good as far as power but they lack in the trans tuning department. Sct has shitty canned tunes but has the best support for custom tuning. Take whatever you want from this but this should help out. OP, I think it will be a close race if he man's up and does it but with your mods you probably have the win. And yes if he isn't careful he will be putting a new motor in it.
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