a.k.a kleicoupe
Sorry to see that, makes me not want to hit boost when i drive my car.
Good luck with all of the repairs, and I hope to see your car running good with the stock motor.
Good luck with all of the repairs, and I hope to see your car running good with the stock motor.
GreenGoblin
The goblin resurrection
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Feb 23, 2022
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ya the fact that it didnt get pushed to redline has me skeptical about the tune
Registered User
Damn man that sucks. And I thought I had it bad!
That's some insane power for an SC though, 380 whp at 5200 RPM!?
We can probably estimate your top end power. Found an ATI dyno from my350z:
http://i162.photobucket.com/albums/t...-1722-27-1.jpg
Assuming the curve shapes are similar, it looks they can be [crudely] modeled with a piece-wise linear function (2 pieces) - the first with an aggressive slope up to about 5200 RPM, the second piece with a less aggressive slope to redline. If you were hitting 380 whp at 5200 RPM, we can estimate a slope of about m1 = (380 - 0)/(5200 - 0) = 0.073077 for the first piece (the estimate cuts off portions of the curve, but it's not awful). Assuming similar characteristics to the 350z curve, looks the slope for the second piece of the curve (> 5200 RPM) is roughly 70% of the slope of the first piece. So m2 ~= (0.7)(0.073077) = 0.051154. Knowing the second slope and the first point of the second piece (380 whp, 5200 RPM), we can solve for the redline point:
m2 = 0.051154 = (x - 380)/(6600 - 5200)
x ~= 450 whp (@ 6600 RPM)
*This is just a crude model (assumes your curve is similar to the Z), but that's some pretty crazy power for an SC. If you really were hitting those kind of numbers, it may explain why the motor blew.
Man, I'm pulling everything I can out of my Vortech and I'm barely breaking 400 at the wheels at 6800 RPM with a raised redline.
That's some insane power for an SC though, 380 whp at 5200 RPM!?
We can probably estimate your top end power. Found an ATI dyno from my350z:
http://i162.photobucket.com/albums/t...-1722-27-1.jpg
Assuming the curve shapes are similar, it looks they can be [crudely] modeled with a piece-wise linear function (2 pieces) - the first with an aggressive slope up to about 5200 RPM, the second piece with a less aggressive slope to redline. If you were hitting 380 whp at 5200 RPM, we can estimate a slope of about m1 = (380 - 0)/(5200 - 0) = 0.073077 for the first piece (the estimate cuts off portions of the curve, but it's not awful). Assuming similar characteristics to the 350z curve, looks the slope for the second piece of the curve (> 5200 RPM) is roughly 70% of the slope of the first piece. So m2 ~= (0.7)(0.073077) = 0.051154. Knowing the second slope and the first point of the second piece (380 whp, 5200 RPM), we can solve for the redline point:
m2 = 0.051154 = (x - 380)/(6600 - 5200)
x ~= 450 whp (@ 6600 RPM)
*This is just a crude model (assumes your curve is similar to the Z), but that's some pretty crazy power for an SC. If you really were hitting those kind of numbers, it may explain why the motor blew.
Man, I'm pulling everything I can out of my Vortech and I'm barely breaking 400 at the wheels at 6800 RPM with a raised redline.
Registered User
Quote:
Same thing happened to one of my buddies with a Turbo'd IS300. He shot a rod and the hole was pretty large too. It was a pretty big mess. Sorry to hear about that man. Makes me think twice about boosting the G tooOriginally Posted by Hi-Tech_G
Sounds like your rod went through the oil pan. I have had this happen with a 97 GS-R. I was running a Turbonetics Kit and the same thing happened....driving home from hanging out with some friends....loud clank followed by a pop and an oil trail about a 1000 feet long....and clouds of smoke. Sorry to hear man. This just makes me change my mind more and more about boosting the G.
Quote:
Yeah I dont know..I want to get it pulled out and check everything but I dont have the tools or anything in my garage...I dont know about the timing really..I am sure it was conservative.Originally Posted by Mr_pharmD
Sorry to hear it man. I know how it feels for I blew my motor too last yr in my vortech AT g35. I was pushing over 400hp tho and had redline mine when it blew. How much timing did they add to your tune bc there must have been a reason why u're tune was only up to 5500 and not to redline. U're best bet is to do a tear down and see how the pistons looks (detonations, etc) to determine if it was a weak rod or a tunning issue. Hopefully your heads are okay so u don't have to buy a longblock. GL
Quote:
btw: was the tune conservative? i'm wondering about your timing also. what was your fuel setup like? oil level full too?
explain more what you mean by Fuel Setup..Oil level I am assuming it was full..I had just picked it up from the dealer after having the oil changed 5 days ago...I have a JWT Oil Pan spacer and told them that I needed an extra QT of oil...that was over the phone...did my service advisor tell the mechanic...I dont know....So if I only had 5 QTR's I would be starved for oil which would result in blowing the engine...Originally Posted by accordfreak
wow dude.. sorry to see that. hopefully you'll be back up and running soon.btw: was the tune conservative? i'm wondering about your timing also. what was your fuel setup like? oil level full too?
Quote:
I didnt take it to redline to often....I would hit 5800-6200 when shifting...I am assuming it was at 5200 from talking to Cameron..I still never received any info on my tune afterwards....what were the final results or anything..I was told by jason what he thought my power was from the what he had heard around the shop...Originally Posted by Moog
wait...if you had that aggressive of a tune @ 5200rpms, then was it tuned to redline? And the question is...if it wasn't tuned to redline then how many times did you take it there?
i.love.gold
Quote:
Your tune was not conservative if you hit 380whp at 5200rpm.Originally Posted by g35man04
Yeah I dont know..I want to get it pulled out and check everything but I dont have the tools or anything in my garage...I dont know about the timing really..I am sure it was conservative.
Quote:
That's some insane power for an SC though, 380 whp at 5200 RPM!?
We can probably estimate your top end power. Found an ATI dyno from my350z:
http://i162.photobucket.com/albums/t...-1722-27-1.jpg
Assuming the curve shapes are similar, it looks they can be [crudely] modeled with a piece-wise linear function (2 pieces) - the first with an aggressive slope up to about 5200 RPM, the second piece with a less aggressive slope to redline. If you were hitting 380 whp at 5200 RPM, we can estimate a slope of about m1 = (380 - 0)/(5200 - 0) = 0.073077 for the first piece (the estimate cuts off portions of the curve, but it's not awful). Assuming similar characteristics to the 350z curve, looks the slope for the second piece of the curve (> 5200 RPM) is roughly 70% of the slope of the first piece. So m2 ~= (0.7)(0.073077) = 0.051154. Knowing the second slope and the first point of the second piece (380 whp, 5200 RPM), we can solve for the redline point:
m2 = 0.051154 = (x - 380)/(6600 - 5200)
x ~= 450 whp (@ 6600 RPM)
*This is just a crude model (assumes your curve is similar to the Z), but that's some pretty crazy power for an SC. If you really were hitting those kind of numbers, it may explain why the motor blew.
Man, I'm pulling everything I can out of my Vortech and I'm barely breaking 400 at the wheels at 6800 RPM with a raised redline.
thanks for the calculation..I was also running 10psi boost with a MD 1/2 Plenum Spacer, Topspeed headers, HFC's. and HKS HI-Power.Originally Posted by aero
Damn man that sucks. And I thought I had it bad! That's some insane power for an SC though, 380 whp at 5200 RPM!?
We can probably estimate your top end power. Found an ATI dyno from my350z:
http://i162.photobucket.com/albums/t...-1722-27-1.jpg
Assuming the curve shapes are similar, it looks they can be [crudely] modeled with a piece-wise linear function (2 pieces) - the first with an aggressive slope up to about 5200 RPM, the second piece with a less aggressive slope to redline. If you were hitting 380 whp at 5200 RPM, we can estimate a slope of about m1 = (380 - 0)/(5200 - 0) = 0.073077 for the first piece (the estimate cuts off portions of the curve, but it's not awful). Assuming similar characteristics to the 350z curve, looks the slope for the second piece of the curve (> 5200 RPM) is roughly 70% of the slope of the first piece. So m2 ~= (0.7)(0.073077) = 0.051154. Knowing the second slope and the first point of the second piece (380 whp, 5200 RPM), we can solve for the redline point:
m2 = 0.051154 = (x - 380)/(6600 - 5200)
x ~= 450 whp (@ 6600 RPM)
*This is just a crude model (assumes your curve is similar to the Z), but that's some pretty crazy power for an SC. If you really were hitting those kind of numbers, it may explain why the motor blew.
Man, I'm pulling everything I can out of my Vortech and I'm barely breaking 400 at the wheels at 6800 RPM with a raised redline.
i.love.gold
Quote:
man....Originally Posted by g35man04
I still never received any info on my tune afterwards....what were the final results or anything..I was told by jason what he thought my power was from the what he had heard around the shop...
Quote:
well hell I dont know man....I am trying to get ahold of him to email me the graphs....Originally Posted by Moog
Your tune was not conservative if you hit 380whp at 5200rpm.
Good luck with everything.
i.love.gold
Quote:
I could never get him to send me my graphs either, which is why I didn't go back to him for a retune. He promised to send them to me twice and never did. And I also asked Felix to check w/ Cameron as well...never got it.Originally Posted by g35man04
well hell I dont know man....I am trying to get ahold of him to email me the graphs....
Quote:
yeah im trying to find out right now...Originally Posted by Moog
I could never get him to send me my graphs either, which is why I didn't go back to him for a retune. He promised to send them to me twice and never did. And I also asked Felix to check w/ Cameron as well...never got it.
i.love.gold
VQ motor for sale local: http://dallas.craigslist.org/pts/619409389.html
Short Block packages: http://www.importpartspro.com/shblpa.html
Short Block packages: http://www.importpartspro.com/shblpa.html