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What caused the engine failure?


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GreenS550

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I received my car back from Livernois Motorsports today.
Andy one of the calibrators called me to update me on the car and drivability repeatedly over the last few weeks. I went there and drove it Monday, but drivability was still an issue. Specifically in that intermediate area where you accelerate kind of briskly, say 1/4 power. The hesitation when shifting was there. I will report back the issue to him tomorrow, but will drive it for a while to see if I can live with it.
I have to say they took every work I had to heart and tried to really make it work, but still bizarre how it drives. I picked it up with my brother and asked him what he thought. He asked me "are you doing that with your acc pedal?" No. Just very wierd.
LMS worked on the blowoff valve, switched back to the larger pulley, etc, etc. In fact the calibrator called me on Saturday and at night to talk of the issues as well as the Manager. I was treated very respectfully, The car is just irritating in mid range.
For the good news, the car was detailed very nicely. And, it really does shift at 8,000 RPM. Truly incredible. Full throttle drivability is fine along with the full throttle shift.
 

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TJL442

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Sounds like the same way mine ran last year with the VMP tune. Full throttle and up to 1/4 throttle were good but half throttle range was embarrassing. Switched to Lund this spring and runs like a new car.

Tim
 

Stang1586

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Glad to hear you got the car back. Like some other members have said, can alway get a new tune and enjoy the car before the winter hits. Were there any final dyno numbers and boost given?
 
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GreenS550

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All that time spent working on the tune and it still isn’t dialed in?
It's weird. They put their heart in to fixing this issue and I can bring it back if I want for them to try and change things. Very open to it. But, perhaps the software? Anyway, I will try driving and see.
 
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GreenS550

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Glad to hear you got the car back. Like some other members have said, can alway get a new tune and enjoy the car before the winter hits. Were there any final dyno numbers and boost given?
602rwhp witht the smaller pulley. I asked them to put the larger pulley back to try and get it more drivable. With that pulley, 602rwhp. Torque high 400s. I don't know boost, but now probably around 10psi? The dyno graph much smoother. The engine is smooth and revs freely to the shift point which is 8,000 RPM. I am sure it is because it is line bored, balanced, etc. I was thinking of selling the car, but if I can get it a bit more drivable, that would be the cat's meow.
 
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Sounds like the same way mine ran last year with the VMP tune. Full throttle and up to 1/4 throttle were good but half throttle range was embarrassing. Switched to Lund this spring and runs like a new car.

Tim
Thanks. Can you give me a summary on how you did the tune? was it remote or did you drive the car there?
 

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Lund does it remotely, they'll send you a base file that you'll load via the Ngauge. They'll ask you to log certain things.....idle.....slow climb to 5k etc, then send them the file. They update your tune and send you back a new tune to load, and have you rip it to 6k. You do this 4-5 times and they dial you right in. Here's a little story about the driveability of the tune:

I started my blower install Friday night, had it done by Sunday afternoon. Worked from home Monday to do the first couple data logs and tune revisions. Got up Tuesday for work and the car was gone. The wife figured since I had the car all weekend into Monday, it was her turn. Because she wasn't around for most of the weekend she had forgotten about the supercharger going on. Here's the exchange:

Me-How is the car?(sarcastically)
Her-(Top down on Bluetooth)...great!
Me-I am not finished tuning it!
Her- Why are you tuning it?
Me-I just installed the supercharger!
Her-I think you wasted your money because I can't tell a difference!
Me-Step on the gas
Her-!@#$%^&


Thanks. Can you give me a summary on how you did the tune? was it remote or did you drive the car there?
 
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GreenS550

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Lund does it remotely, they'll send you a base file that you'll load via the Ngauge. They'll ask you to log certain things.....idle.....slow climb to 5k etc, then send them the file. They update your tune and send you back a new tune to load, and have you rip it to 6k. You do this 4-5 times and they dial you right in. Here's a little story about the driveability of the tune:

I started my blower install Friday night, had it done by Sunday afternoon. Worked from home Monday to do the first couple data logs and tune revisions. Got up Tuesday for work and the car was gone. The wife figured since I had the car all weekend into Monday, it was her turn. Because she wasn't around for most of the weekend she had forgotten about the supercharger going on. Here's the exchange:

Me-How is the car?(sarcastically)
Her-(Top down on Bluetooth)...great!
Me-I am not finished tuning it!
Her- Why are you tuning it?
Me-I just installed the supercharger!
Her-I think you wasted your money because I can't tell a difference!
Me-Step on the gas
Her-!@#$%^&
Do you have the same blower the Magnuson 2300?
 

Draklia

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All that time spent working on the tune and it still isn’t dialed in?
Seems to be the norm for companies that specialize in hardware vs tuning. They offer tuning to sell the warranty part of the purchase, but it’s advantageous to not get it perfect so the buyer is driven for perfection so goes elsewhere for a tune thus letting the company off the hook for any warranty coverage. Course this is just my take on it.
 

Ggradtech

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I went with Lund for my Magnuson. Way better than the Livernois tune. Lund will insist that you 1st get a BAP installed before they will do a tune for you. It may or may not be neccesary or essential, but it isn't that expensive and it's easily installed.
 

TJL442

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Thanks. Can you give me a summary on how you did the tune? was it remote or did you drive the car there?
I did datalogs on the street and would email results and they would revise the tune and send a new one. The first tune they sent was head and shoulders better than the VMP. Funny thing is that Alex Flores did both my tunes, Lund must have a better base tune they build off of. I've never been on a dyno so no idea on the power level, all I know is it's very fun as a street car.

Tim
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