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a sad day today at the dyno. pls help.

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Old Aug 1, 2009 | 03:32 PM
  #31  
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Originally Posted by zeus1
why not go back and have them check the mechanical items you listed to rule those out or get fixed? i would assume by Al mentioning that there may be mechanical issues that your car is not producing the numbers he would expect. its all speculation at this point... what did he think your car should have produced for numbers?
Big Al and me was actually looking towards 380-400 with the modz..but disappointingly only got 330.. He even tried clamping what I think is the tubing of the wastegate actuator..(if im not mistaking) Dyno tuned it but only produced a significant 6hp more 336whp.. Im actually goin back thursday.. He is goin to look at what the problem is himself.. Hopefully its only the turbo and not anythin else..any other ideas?
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Old Aug 1, 2009 | 03:34 PM
  #32  
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Originally Posted by iy
That's not horrible by any means...I'm talking out of my *** BUT given that you are making 385 tq and 330~ whp it seems like the turbo runs out of steam up top, which is NORMAL for a stock 8 turbo. Dyno charts would help but this seems to be the issue, just need a bigger turbo to get the big numbers
Im so sorry but when u say out of steam meaning the turbo is turning bad?
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Old Aug 1, 2009 | 04:26 PM
  #33  
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If you look at 96% of the stock turbo dyno sheets any stock Evo turbo will taper (run out of steam) as the RPMs increase. Most stock turbos taper to around 19-20 psi at redline, its normal.
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Old Aug 1, 2009 | 06:46 PM
  #34  
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Sad Day? Are you serious?
Are you new to modifying cars?

IT's a process, you fix the problems and move on. An evo 8 turbo will make 380-390 in the summer time no problem, you have to figure out what is wrong correct it and go back on the dyno.
Engine needs to be checked, boost leaks, mods done by previous owner etc.

Alot of times there are problems with the cars when they come in and it has nothing to do with the ability of the tuner.

Sean
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Old Aug 1, 2009 | 07:04 PM
  #35  
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Easiest thing to do is blame it on the tuner. Let's go with that.
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Old Aug 1, 2009 | 07:24 PM
  #36  
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[QUOTE=olmoscd;7347679]Easiest thing to do is blame it on the tuner. Let's go with that. [/QU HAHAHAHAHAHA that's probably your answer...Usually when the turbo starts to go bad it tends to smoke really bad like white and grey is it doing that?It could be your turbo that it's starting to die slowly...Why dont they check the car out on monday instead of thursday what if u really have a major problem expecially running meth like that be carefull u dont ruin anything..if u want ill sell you a almost new 9 turbo for a good deal just pm me....
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Old Aug 1, 2009 | 07:26 PM
  #37  
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Originally Posted by Sean@Iveytune
Sad Day? Are you serious?
Are you new to modifying cars?

IT's a process, you fix the problems and move on. An evo 8 turbo will make 380-390 in the summer time no problem, you have to figure out what is wrong correct it and go back on the dyno.
Engine needs to be checked, boost leaks, mods done by previous owner etc.

Alot of times there are problems with the cars when they come in and it has nothing to do with the ability of the tuner.

Sean
Dude give the guy a break he's worried about his car and the power is really low u know that sorry he doesn't know as much as u do master tech...
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Old Aug 2, 2009 | 03:27 AM
  #38  
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From: williamson, WV
Originally Posted by Jarrett 03
key word for this one STOCK 8 TURBO
my friend made 325 on Buschurs dyno with stock 8 turbo, no meth
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Old Aug 2, 2009 | 03:57 AM
  #39  
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seems like good numbers to me for a stock 8 turbo. but thats just me.
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Old Aug 2, 2009 | 04:53 AM
  #40  
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[QUOTE=IDRINKV8'S;7347721]
Originally Posted by olmoscd
Easiest thing to do is blame it on the tuner. Let's go with that. [/QU HAHAHAHAHAHA that's probably your answer...Usually when the turbo starts to go bad it tends to smoke really bad like white and grey is it doing that?It could be your turbo that it's starting to die slowly...Why dont they check the car out on monday instead of thursday what if u really have a major problem expecially running meth like that be carefull u dont ruin anything..if u want ill sell you a almost new 9 turbo for a good deal just pm me....
Well I would love to go there monday but work is not lettin me..thursday is my only day off..it is a little harsh, but I can agree with sean ivey's recommendations..he does know what he is talkin about.. My next door neighbor with a red evo 8 was actually tuned by sean ivey and made nice numbers wid the stock evo turbo..he did inform me of sean ivey tuning.. But Im hardly new nor old in this game.. I had a subaru before that made 378whp with no meth before but was stolen so didn't really know what it means when sumthin goes wrong like the turbo goin out..only got to enjoy it for 2 years..I jus had my evo 8 for a year and it is a similar but difficult process because the two are almost alike but so differnt in a lot of ways also in terms of parts used..but thank you for your concern.
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Old Aug 2, 2009 | 06:13 AM
  #41  
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And im ready and willing to learn new things about my car that I can also use in da future when I experience a new problem..
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Old Aug 2, 2009 | 07:53 AM
  #42  
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put an evo 9 turbo and the car will crack 400 easy
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Old Aug 2, 2009 | 03:00 PM
  #43  
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Originally Posted by evo8jdm
put an evo 9 turbo and the car will crack 400 easy
+1
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Old Aug 2, 2009 | 07:19 PM
  #44  
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I have a IX turbo for sale?

-Matt
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Old Aug 2, 2009 | 10:29 PM
  #45  
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Hey guys - big shout out to OP and my customer Tristan and also to Sean Ivey for pointing out the obvious

Cars with 70 k plus hard miles will start to develop problems

Back in '03 when we started to tune Evos they were ALL brand new so when we added on all stage IV mods and ran race gas we knew the stock turbo is good for nearly 400 TQ and the cars were nearly brand new

Now some of the '03 cars have 8 years of driving and use on them

This is what happend in this case - (I will share this data as we are all here to learn)

The customer and OP felt his car was not running right and had made a couple of mod changes and had his clutch changed so he wanted a boost leak test whioch we did with our amazing smoke testing machine and found no leaks or any kind

Obviously since he was very in touch with his car he felt and knew there was a boost issue which is why he idenifiied and requested the boost leak teat which was a great idea

When I got the car on the dyno and saw how lethargic and weak it was comming on boost and how low the peak boost was I suspected an issue with his boost controler

My next diagnositic issue is to clamp off the hose going to the wastegate which would achieve maximum boost that his turbo / wastegate combo could produce

Claping the hose had only a 6 whp effect on the car and the boost level was far lower than expected

Rather than dick around with changing his wastegate actuator which may be bad and running up service charges I offered to provide the OP for FREE a known good turbo which previously hit 400 whp and just swap in the known good turbo / wastegate combo

At this point I can not be 100% sure that the turbo or wastegate is his problem - however, based upon my years of tuning and dyno experience on the stock turbo I feel it is very likely that one of those two is the cause. I say this based upon the sound, how the car reacts when you turn up the boost, the knock count being very low and the very lazy spool up.

An important lesson to take from this is that when tuning the most important thing a tuner can do is tell you when the car is NOT running properly and ler you KNOW that you HAVE a problem. A good tuner will not let a car with mechanical problems leave now will he try and push it harder with more agressive tuning to make up a mechanical short comming.

As the cars are getting older, passing through more hands and being more heavily modified diagnosis and problem fixing is going to become more and more a core part of the tuning process.

I am looking forward to seeing how the new turbo and w/g combo will effect the car when we install it on thursday.

I would like to see your car closer to 390 - 400 TQ and 360 whp

Al
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