6.4L 388 ls3 dyno guesses?
03-31-2017, 06:32 PM
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6.4L 388 ls3 dyno guesses? I got my 6.4L ls3 together. Darth V8r has been helping me finalize a good base tune for it. Fuel pressure and injector issues are fun. Pulls like mad compared to the old bolt on ls1 did. Build list so far is
4.125" x 3.622 bottom end
11.3:1 compression
Mast medium bore ls3 heads
Cam motion LLSR cam, 239/253, .680 lift on a 112
Fast mid runner intake
2" TSP headers and 3" duals
All the bolt ons that I could use from my ls1
Any guesses? Hoping to hit a dyno in a couple weeks if it works out
4.125" x 3.622 bottom end
11.3:1 compression
Mast medium bore ls3 heads
Cam motion LLSR cam, 239/253, .680 lift on a 112
Fast mid runner intake
2" TSP headers and 3" duals
All the bolt ons that I could use from my ls1
Any guesses? Hoping to hit a dyno in a couple weeks if it works out
03-31-2017, 06:35 PM
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685rwhp 650trq muh man
03-31-2017, 06:36 PM
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03-31-2017, 06:37 PM
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03-31-2017, 06:40 PM
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03-31-2017, 07:43 PM
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If the hp curve peaks over 7k I think 650 is realisticly possible.
I'll be quite surprised if you come in under 600
Don't make the mistake of comparing this to a typical 383. All bore vs all stroke. This thing will rip more like a 427. And that shorter stroke should carry seriously well.
Not to mention LLSR and what those heads must flow
I'll be quite surprised if you come in under 600
Don't make the mistake of comparing this to a typical 383. All bore vs all stroke. This thing will rip more like a 427. And that shorter stroke should carry seriously well.
Not to mention LLSR and what those heads must flow
03-31-2017, 08:08 PM
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03-31-2017, 11:52 PM
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610 RWHP @ 7000 RPM CARRYING TO 7500+ with very little
Drop off. ( with a 102 TB )
550 lb ft at the flywheel would be max for the mid length runners
at that Compression.
Curve should look similar to mine adjusted for wheels vs crank.
Looking forward to results.
Drop off. ( with a 102 TB )
550 lb ft at the flywheel would be max for the mid length runners
at that Compression.
Curve should look similar to mine adjusted for wheels vs crank.
Looking forward to results.
In
04-01-2017, 08:03 AM
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Originally Posted by NAVYBLUE210
610 RWHP @ 7000 RPM CARRYING TO 7500+ with very little
Drop off. ( with a 102 TB )
550 lb ft at the flywheel would be max for the mid length runners
at that Compression.
Curve should look similar to mine adjusted for wheels vs crank.
Looking forward to results.
Drop off. ( with a 102 TB )
550 lb ft at the flywheel would be max for the mid length runners
at that Compression.
Curve should look similar to mine adjusted for wheels vs crank.
Looking forward to results.
04-01-2017, 09:30 AM
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I'm hoping for 600+ but who knows
04-01-2017, 10:33 AM
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Originally Posted by NAVYBLUE210
Yes, 243*/249* 115*+3* .679"/.637"
04-01-2017, 10:38 AM
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