How much boost will a stock 6.0 handle?
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TECH Apprentice
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From: Southeast, MI
How much boost will a stock 6.0 handle? how much boost will a stock 6.0 lq4 handle? im going to be putting a basically brand new lq4 into my third gen. Its going to be a stock 6.0 with a turbo cam and upgraded rod bolts. And of course all supporting fuel mods. I was planning to make about 10 lbs of boost with a single t76 turbo and expect at least 550rwhp. Does that sound realistic?
I'd tune for 10 to be honest. The LQ4 is lower compression than a stock LS1, so I think it'd be fair to get a couple PSI more out of it without blowing it up. Meth injection is your friend, along with a good intercooler. You'd be able to run more than 10 with meth, but that's up to you if you'd like to depend on it.
We made 20psi before it started hurting itself. Bent one set of rods and broke the second. Make no mistake, VP Q16 fuel only run in it. It went 5.72@126 in the 1/8th at 3280-90lbs
I was running 10-12psi on mine with no intercooler on 89 octane for 2 years, and its still going. I put in rod bolts the 2nd year, was making around 550whp with this setup.
I put some 93 octane and a spash of c16 in it once and had it up to 16psi, still no intercooler. I figured by the races i won it should have been in the high 600whp area, no problems just keep the timing down.
I put some 93 octane and a spash of c16 in it once and had it up to 16psi, still no intercooler. I figured by the races i won it should have been in the high 600whp area, no problems just keep the timing down.
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Verdad Gallardo All I can say is DAMMMMNNN! You must be running a very conservative tune on there to keep it alive. Way to go to show how strong these motors really are. I wouldn't have the nuts to run the boost up that high
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Joined: Oct 2008
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i had the same nagging issue...
do you want turn key reliability,
or sitting on the edge of no mans land?
start at 5-6lbs and dont concern yourself with the dyno
numbers untill you build confidence...then build boost.
not to say a bad tune cant pop your motor at 5-6 of boost.
start conservitive, you wont regret going the slow road
untill you understand tuning and boost and all that implies.
good luck...be smart!
do you want turn key reliability,
or sitting on the edge of no mans land?
start at 5-6lbs and dont concern yourself with the dyno
numbers untill you build confidence...then build boost.
not to say a bad tune cant pop your motor at 5-6 of boost.
start conservitive, you wont regret going the slow road
untill you understand tuning and boost and all that implies.
good luck...be smart!
Thread Starter
TECH Apprentice
iTrader: (19)
Joined: Mar 2007
Posts: 316
Likes: 0
From: Southeast, MI
i had the same nagging issue...
do you want turn key reliability,
or sitting on the edge of no mans land?
start at 5-6lbs and dont concern yourself with the dyno
numbers untill you build confidence...then build boost.
not to say a bad tune cant pop your motor at 5-6 of boost.
start conservitive, you wont regret going the slow road
untill you understand tuning and boost and all that implies.
good luck...be smart!
do you want turn key reliability,
or sitting on the edge of no mans land?
start at 5-6lbs and dont concern yourself with the dyno
numbers untill you build confidence...then build boost.
not to say a bad tune cant pop your motor at 5-6 of boost.
start conservitive, you wont regret going the slow road
untill you understand tuning and boost and all that implies.
good luck...be smart!
Thread Starter
TECH Apprentice
iTrader: (19)
Joined: Mar 2007
Posts: 316
Likes: 0
From: Southeast, MI
Im debating on whether or not i should do a cam. regardless if i do or not i will be putting in some good springs and pushrods. Am i going to gain that much by doing a cam, i know that it isnt really nesescary with FI but i figured i'd do it since the engine's on the stand.
Staging Lane
Joined: Oct 2008
Posts: 72
Likes: 0
From: St. Mary's Point Mn.
Im debating on whether or not i should do a cam. regardless if i do or not i will be putting in some good springs and pushrods. Am i going to gain that much by doing a cam, i know that it isnt really nesescary with FI but i figured i'd do it since the engine's on the stand.
I would think so because you have a little bit more cubic inches. Then something alot of people over look when the bore size is increased is the reduction of the valve shrouding.