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500 rwhp stock bottom

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Old Oct 18, 2007 | 05:27 PM
  #21  
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600-630 on my buddy's TA depending on belt slip

been this way for a good while now.

like mentioned above, good tune + meth and the motor should last a while at least with street driving.

taking this same car to the track on a regular basis..... not sure how it would hold then.
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Old Oct 18, 2007 | 08:04 PM
  #22  
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thanks for everyones help. I currently put down 417rwhp 407rwt in an A4. I have Katech rod bolts. I shootin' for 5lbs boost.Will that keep me at 500rwhp give or take 10rwhp,or should I shoot for less boost?
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Old Oct 18, 2007 | 08:28 PM
  #23  
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500 + h/p? thats gotta be hell on that crank and rods much less than chance of detenation i would think?? think about it those rods are jsut holding on for thier lives to that crank im surprised they dont let go and fly out either side of the motor spray or not i would be a little worried... ?
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Old Oct 18, 2007 | 08:52 PM
  #24  
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500rwhp is no problem and can last a very long time if the fuel system is good and timing is in check. My Vette made 530hp/480tq (stock longblock)on a detuned 14lbs of boost and is still running 3 years later.Now it makes 600hp/540tq with a Cam and methenol.We've tuned alot of 500hp cars and haven't seen one blow up yet.
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Old Oct 18, 2007 | 09:07 PM
  #25  
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My numbers are in my sig. No problems
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Old Oct 18, 2007 | 09:17 PM
  #26  
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Originally Posted by displacementdan
500 + h/p? thats gotta be hell on that crank and rods much less than chance of detenation i would think?? think about it those rods are jsut holding on for thier lives to that crank im surprised they dont let go and fly out either side of the motor spray or not i would be a little worried... ?
Actually, the crank is fine up to 900 ~ 1000rwhp- its been done many times before. The rod bolts would be the second weakest link, but from my personal experience, and from others experience I've seen on this site, the pistons themselves are the weakest link in the stock bottom end. They absolutely do not like anything much less than perfect conditions. And when you are cramming a lot of air in really fast, if the tune is not spot on, or if you get anything in the mix such as oil from the very bad stock PCV system, something bad is bound to happen! Just be careful and don't get greedy.
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Old Oct 19, 2007 | 12:01 AM
  #27  
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wow that impressive, well im comming from the dsm side i owned a talon and a gst but that is truly amazing that the stock bottom end could with stand that much force.. jsut a newbie here
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Old Oct 19, 2007 | 03:32 AM
  #28  
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Originally Posted by ChevyChad
Actually, the crank is fine up to 900 ~ 1000rwhp- its been done many times before. The rod bolts would be the second weakest link, but from my personal experience, and from others experience I've seen on this site, the pistons themselves are the weakest link in the stock bottom end. They absolutely do not like anything much less than perfect conditions. And when you are cramming a lot of air in really fast, if the tune is not spot on, or if you get anything in the mix such as oil from the very bad stock PCV system, something bad is bound to happen! Just be careful and don't get greedy.
Agreed. Usually the #7 ring land will tell you when it's time to quit. Mine as well as several others went in this manner.
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Old Oct 19, 2007 | 06:49 AM
  #29  
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Originally Posted by Slowhawk
500rwhp is no problem and can last a very long time if the fuel system is good and timing is in check. My Vette made 530hp/480tq (stock longblock)on a detuned 14lbs of boost and is still running 3 years later.Now it makes 600hp/540tq with a Cam and methenol.We've tuned alot of 500hp cars and haven't seen one blow up yet.
I have a racetronix in,and 42lb injectors.I'm pretty sure the injectors are good to 550 rwhp.When I forge it and step up the boost I'll upgrade to 60lb injectors
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Old Oct 19, 2007 | 06:52 AM
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Originally Posted by geeteego
Agreed. Usually the #7 ring land will tell you when it's time to quit. Mine as well as several others went in this manner.
I have rod bolts in. But yeah its the pistons I'm worried about. I know alot of the N20 guys spray and are good till about 600rwhp,but on the jug the extra power is there for a brief time.
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Old Oct 19, 2007 | 02:48 PM
  #31  
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Originally Posted by Carnutz
There is a guy here with a 02 Camaro PTK kit on it, 76GTS, that made ~500 RWHP on a stock long block at 10lbs, (I rode with this guy and he is a NUT) he upped the boost to 12lbs and has been beating on it and so far so good, BUT it has a good tuner (Local NMCA turbo mustang racer) and is conservitive, IE ?12deg total timing?(dont quote me on that....)
Ouch! Ha ha 12lbs no meth on 92. No knock and 11.2 wide-band reading but the tuner is sick he's very good and I dont baby the car
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Old Oct 19, 2007 | 03:47 PM
  #32  
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42's are NOT good to 550 on a blower car. you can suppliment with meth, but if no meth, don't try to push 42's that far IMO.,

get the 60's in there.
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Old Oct 19, 2007 | 04:28 PM
  #33  
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Originally Posted by trever phillips
Ouch! Ha ha 12lbs no meth on 92. No knock and 11.2 wide-band reading but the tuner is sick he's very good and I dont baby the car
Damn that is awesome. What kind of #'s do you make at 12#'s
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Old Oct 19, 2007 | 05:52 PM
  #34  
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Originally Posted by sevanseriesta
Damn that is awesome. What kind of #'s do you make at 12#'s
We did a pull at 13# and 602rwt and 562rwhp, on the same gas 92 pump fuel with no knock we stopped there and didn't bother putting 111 oct cause everyone was saying the piston cant take much more, so we had an great and safe 10# tune
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Old Oct 19, 2007 | 05:56 PM
  #35  
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i make about 620 rw on nitrous....been like that for about 10k miles and 60 passes
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Old Oct 19, 2007 | 05:56 PM
  #36  
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wow there is some hope!!!
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Old Oct 19, 2007 | 07:25 PM
  #37  
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Originally Posted by john563
I have a racetronix in,and 42lb injectors.I'm pretty sure the injectors are good to 550 rwhp.When I forge it and step up the boost I'll upgrade to 60lb injectors
Thats a problem right there.Fuel pressure WILL drop and the injector's are at the edge. Either do a dual intank pump setup with a return line from the rails or add 60lb injectors. Both would be best.
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Old Oct 19, 2007 | 09:03 PM
  #38  
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Originally Posted by Slowhawk
Thats a problem right there.Fuel pressure WILL drop and the injector's are at the edge. Either do a dual intank pump setup with a return line from the rails or add 60lb injectors. Both would be best.
injectors are cheap enough.i'll just add 60lb when i do go F/I
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Old Oct 19, 2007 | 09:14 PM
  #39  
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ya HES SAYIN IF FUEL PRESSURE IS DROPPING BIGGER INJECTORS WONT HELP.,.YOU NEED MORE FUEL PUMP FIRST
sorry about the caps
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Old Oct 19, 2007 | 10:50 PM
  #40  
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I'd recommend upper 500's for Nitrous setups, lower 500's for Boost setups..

I ran 550rwhp for a year before I got forged. I was expecting it to pop any minute, but it never did. You can go north of 550rwhp with nitrous. I think the reason why you see so many nitrous setups in the high 500's/low 600's is because Nitrous isn't run all the time. From the few I've known of they've held together longer than the lower 500 level range FI setups.

I don't get it, but it just seems to work like that.

Want a tip??? AFR. Throw fuel at the problem.
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