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240 whp 2.0 LS/VTEC. Done.

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Old 06-02-2009, 06:48 PM
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Default 240 whp 2.0 LS/VTEC. Done.

This is what detonation looks like and how it destroys a brand new fully built engine in less then 30 miles. Apon detonation, the head lifted up off the block, and blew metal into all 4 cylinders.





Old 06-02-2009, 06:51 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

ouch. whats the plans now
Old 06-02-2009, 06:55 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

What was the root cause?
injectors to small?
fuel pump failed?
fuel pressure n/g?
bad tune?
Fill us in, so others may learn.
Old 06-02-2009, 06:57 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

Boost FTW. Bottom end is GE knfie Edge crank, sleeved, Eagle H beam rods, everything excpect pistons are perfect, can still see the hone.

The reason this happened is becasue this store lied to and sold me 108 ocatane when I need 110 because he hates imports. So yea. Tune was great. Just the ******* who sold me the fuel.
Old 06-02-2009, 07:07 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

what was your setup and compression?
Old 06-02-2009, 07:09 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

It also looks more like a dropped valve than detonation to me.
Old 06-02-2009, 07:18 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

dump the pistons, buy a 895 dollar endyn head and an AFI kit and youll have a turn ket 500hp car, or a buckin bronco rodeo ride, however you want to look at it
Old 06-02-2009, 07:31 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

Originally Posted by Teamdiesel
It also looks more like a dropped valve than detonation to me.
X2
Old 06-02-2009, 07:33 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

Originally Posted by dlaub25
X2
Yea, it deff did. We are looking into if it just dropped a valve, or dropped a valve due to detonation.
Old 06-02-2009, 07:33 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

i dont thing the 2 octane point difference caused that since the points can vary up and down by a few, something failed in the motor like stated above
Old 06-02-2009, 07:33 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

Originally Posted by TheRappist
Boost FTW. Bottom end is GE knfie Edge crank, sleeved, Eagle H beam rods, everything excpect pistons are perfect, can still see the hone.

The reason this happened is becasue this store lied to and sold me 108 ocatane when I need 110 because he hates imports. So yea. Tune was great. Just the ******* who sold me the fuel.
That cannot be from 2 octane points.
Old 06-02-2009, 07:35 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

damm!!!
Old 06-02-2009, 07:36 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

****kkk man, was it tuned with confidence?
Old 06-02-2009, 07:39 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

Originally Posted by 1.5Slowmatic
i dont thing the 2 octane point difference caused that since the points can vary up and down by a few, something failed in the motor like stated above
Yea, I forgot to state in the orginal post, that we are leaning more towards it dropping a valve, but how would every cylinder have metal shavings in them when all they are all fine? Thats why we are curious about the whole detonation
Old 06-02-2009, 08:02 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

i dont see the head lifting enough with 240whp to allow metal from one cylinder to get to all 4. Did only one valve head drop?
Old 06-02-2009, 09:44 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

Originally Posted by TheRappist
Yea, it deff did. We are looking into if it just dropped a valve, or dropped a valve due to detonation.
You don't drop a valve due to detonation.
The pictures shown are of a motor which was destroyed due to a dropped valve....
Old 06-02-2009, 09:51 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

man with all the engine failures i might have to get back into the engine building business, looks like most of the people that do it now just plain suck.
Old 06-02-2009, 10:02 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

non claying bitches!!
Old 06-02-2009, 10:07 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

Originally Posted by omniman
man with all the engine failures i might have to get back into the engine building business, looks like most of the people that do it now just plain suck.
lol

Originally Posted by 98vtec
non claying bitches!!
Cam gears...??? SET IT AND FORGET IT!!!
Cook a chicken dinner in 15 minutes!
Old 06-02-2009, 10:09 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

Originally Posted by mtber
Cam gears...??? SET IT AND FORGET IT!!!
Cook a chicken dinner in 15 minutes!
for only 3 easy payments and 19 dollars and 95 cents.
Old 06-02-2009, 10:12 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

Originally Posted by TheRappist
how would every cylinder have metal shavings in them when all they are all fine? Thats why we are curious about the whole detonation
Your intake manifold did that to the rest of the cylinders.
Old 06-02-2009, 10:14 PM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

Originally Posted by 98vtec
for only 3 easy payments and 19 dollars and 95 cents.
Order in the next 10 minutes & get a free broken retainer!


Back on topic.... Sorry to see the destruction of your motor due to a piston to valve or valve to valve issue... Could have also been a faulty retainer install etc.
Old 06-03-2009, 02:50 AM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

Again, what was your compression?
Old 06-03-2009, 04:04 AM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

Sorry for your loss. If you post some actual details of the build we may be able to help you figure out how/why it happened so you don't do it again.

What cams?
What valvetrain?
What compression?
Were v2v and p2v checked?
Old 06-03-2009, 05:38 AM
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Default Re: 240 whp 2.0 LS/VTEC. Done.

Originally Posted by SuperTwinz
Your intake manifold did that to the rest of the cylinders.

Excuse my ignorance...how?


Quick Reply: 240 whp 2.0 LS/VTEC. Done.



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