Interesting Blown motor thread I found...
#17
The findings could be as much a reflection of the popularity of the kits? If the poll also included a vote for which FI kit used (whether blown or not) and thereby tracked the total number of people with FI that viewed the poll, then the numbers might have meant something (for example, 0 out of 0 Vortechs means nothing but 0 out of 20 means much more). With only the "numerator", the poll is quite useless...
For example what if I told you that 50% of Vortech owners will blow their motors but only 1% of GReddy TT will. You cannot refute that statement because we may have had 1500 GReddy people view that poll (with only 15 blown) but only 1 Vortech user (who didn't blow their engine)... The numbers would still jive, eh? Useless...
For example what if I told you that 50% of Vortech owners will blow their motors but only 1% of GReddy TT will. You cannot refute that statement because we may have had 1500 GReddy people view that poll (with only 15 blown) but only 1 Vortech user (who didn't blow their engine)... The numbers would still jive, eh? Useless...
Last edited by rcdash; 08-26-2005 at 04:16 PM.
#19
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Originally Posted by narkotic
Due to the design of the centrifugal blower, and the way it makes power.. it's hard to blow the motor.
Not making any torque in lower RPM's will yield safe power. Just don't ever drive a TT car, you'll be pulling that blower off in a heartbeat.
I know, I did it.
Not making any torque in lower RPM's will yield safe power. Just don't ever drive a TT car, you'll be pulling that blower off in a heartbeat.
I know, I did it.
#21
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There is a bit of misconception here. The SC does make the motor produce tons of torque. Instead of sending that extra tq to the wheels, the SC steals the power off the crank.
Take into consideration the power that is stolen by the SC.
Although 400 hp & 310 tq at the wheels sounds safe, the motor put out a whole lot more. Most of the lost power goes to the SC,then the alternator, the other pulleys,water pump, then through the drivetrain.If the SC was ran by another source & not off the cranks pulley, I bet you'd see #'s similar to turbos. 400hp would turn into 450hp & 310tq would turn into 430tq.
So SC's make less tq for a reason and it is safer for the motor............ "Wrong"
This is why turbos are so much more efficiant, they are a seperate source of power for the compressors.
All of the kits are equally dangerous to the motor(considering all the safety precautions & tuning)..........period
Wes
Take into consideration the power that is stolen by the SC.
Although 400 hp & 310 tq at the wheels sounds safe, the motor put out a whole lot more. Most of the lost power goes to the SC,then the alternator, the other pulleys,water pump, then through the drivetrain.If the SC was ran by another source & not off the cranks pulley, I bet you'd see #'s similar to turbos. 400hp would turn into 450hp & 310tq would turn into 430tq.
So SC's make less tq for a reason and it is safer for the motor............ "Wrong"
This is why turbos are so much more efficiant, they are a seperate source of power for the compressors.
All of the kits are equally dangerous to the motor(considering all the safety precautions & tuning)..........period
Wes
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Very well put . So the trq. is being transfered to the crank pulley to turn the SC instead of the rods and pistons . Would that be a correct statement ? And Ive been told that the SC maybe taking upwards of 100whp and trq away from the motor on my set up
Last edited by booger; 08-27-2005 at 10:33 PM.
#23
I followed that thread when it first came out. However since there are really few checks and balances for the voting and a bunch of inconsistencies, I stopped following it.
The problem was there was no way to verify what was blown and who it happened to. Without knowing that it's not possible to verify the numbers (i.e. someone with a legitmate blown motor posts his results and so does his friend, two counts for blown motor, but in reality only one). The other problem is not knowing what the cause of the problem. Most of what I read on My350z are that the motor troubles stemmed from no tuning, improper tuning, or faulty installation. Yes there are cases where everything seems to have been done right, but they don't seem to be the common case.
Take the information in the poll with a grain of salt.
The problem was there was no way to verify what was blown and who it happened to. Without knowing that it's not possible to verify the numbers (i.e. someone with a legitmate blown motor posts his results and so does his friend, two counts for blown motor, but in reality only one). The other problem is not knowing what the cause of the problem. Most of what I read on My350z are that the motor troubles stemmed from no tuning, improper tuning, or faulty installation. Yes there are cases where everything seems to have been done right, but they don't seem to be the common case.
Take the information in the poll with a grain of salt.
#24
Originally Posted by booger
Very well put . So the trq. is being transfered to the crank pulley to turn the SC instead of the rods and pistons .
So the only thing being spared the extra power is your tranny - downstream from the crank. Before that point, the pistons and conn rods are having to deal with all that power, just like in a turbo setup. And it's the pistons and conn rods you have to worry about when it comes to a blown motor.
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#26
Originally Posted by Gman2004
#28
#29
#30
Originally Posted by Texasscout
This is a little off topic, but not really.
I live in South Texas. It's been over 95 degrees, every day for the last 3 months. It's going to be that way untill October. FI doesn't like heated air. Would I wasting my money and taking a big chance on blowing a motor by going FI?
I live in South Texas. It's been over 95 degrees, every day for the last 3 months. It's going to be that way untill October. FI doesn't like heated air. Would I wasting my money and taking a big chance on blowing a motor by going FI?