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TBE ok without tune?

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Old Nov 7, 2006 | 06:54 PM
  #16  
ihatepotholes's Avatar
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From: Dirty Jersey
Originally Posted by Warrtalon
Newbie03 is correct on everything; Varrius is terribly wrong and does not know what he's talking about. Racerx's info was not relevant when mentioning 100oct.

1) Yes, TBE without a tune is fine - I'm not sure why you'd ask about doing just the cat-back vs the TBE - not sure where that came from.

2) The TBE costs twice as much for half the power as a flash - it won't be useful without a tune on your IX.

3) Yes, doing a TBE reduces backpressure which can fool the ECU into causing a much higher boost spike and higher sustained boost. This can lead to dangerous conditions and/or cause fuel cut, which is highly annoying and leads to an overboost CEL. It is not recommended to install a TBE without first installing a boost gauge. Anyone doing so is very foolish.

4) Likewise, to get the true gains of the TBE while ensuring your boost is properly in check, you should install an MBC along with it and the boost gauge.

5) Yes, the rules clearly state that you MUST search before posting a thread.
had to disagree with u, but i put down 303whp with TBE, drop in and a boost controller set at 19psi.
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Old Nov 7, 2006 | 06:57 PM
  #17  
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Originally Posted by Warrtalon
Newbie03 is correct on everything; Varrius is terribly wrong and does not know what he's talking about. Racerx's info was not relevant when mentioning 100oct.

1) Yes, TBE without a tune is fine - I'm not sure why you'd ask about doing just the cat-back vs the TBE - not sure where that came from.

2) The TBE costs twice as much for half the power as a flash - it won't be useful without a tune on your IX.

3) Yes, doing a TBE reduces backpressure which can fool the ECU into causing a much higher boost spike and higher sustained boost. This can lead to dangerous conditions and/or cause fuel cut, which is highly annoying and leads to an overboost CEL. It is not recommended to install a TBE without first installing a boost gauge. Anyone doing so is very foolish.

4) Likewise, to get the true gains of the TBE while ensuring your boost is properly in check, you should install an MBC along with it and the boost gauge.

5) Yes, the rules clearly state that you MUST search before posting a thread.
no i was just seeing if i should just put the cat-back on for now and put the DP and test pipe on when i get a tune
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Old Nov 7, 2006 | 06:58 PM
  #18  
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you should be fine.
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Old Nov 7, 2006 | 07:06 PM
  #19  
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Originally Posted by ihatepotholes
had to disagree with u, but i put down 303whp with TBE, drop in and a boost controller set at 19psi.
That's not disagreeing with me. He doesn't have an MBC, which is a critical component when adding a TBE to a IX. Even so, your gains are not that much over stock depending on the dyno and weather conditions. You could be as high as 350whp with those mods and a tune, so in a way, you're agreeing with me. I doubt the boost is really 19psi, because that's lower than stock, and there's no reason to set your boost lower than stock. I'd have to see a MAP sensor log to verify.
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Old Nov 7, 2006 | 07:08 PM
  #20  
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From: Dirty Jersey
Originally Posted by Warrtalon
That's not disagreeing with me. He doesn't have an MBC, which is a critical component when adding a TBE to a IX. Even so, your gains are not that much over stock depending on the dyno and weather conditions. You could be as high as 350whp with those mods and a tune, so in a way, you're agreeing with me. I doubt the boost is really 19psi, because that's lower than stock, and there's no reason to set your boost lower than stock. I'd have to see a MAP sensor log to verify.
this was before the tune, i don't have mbc, i have an EBC. don't worry we installed this boost controller better than the direction they gave us. on evo IX theres a solenoid between the intake manifold and fuel pressure regularter. my vaccum line was installed between the solenoid and intakemanifold. if anything MAP sensor would read lower boost than a typical boost gauge anyway.

Last edited by ihatepotholes; Nov 7, 2006 at 07:13 PM.
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Old Nov 7, 2006 | 07:10 PM
  #21  
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Um, I know. What made you think I thought otherwise? I said "you could be as high as 350whp with those mods and a tune," which means I know you didn't have a tune when you hit 303...
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Old Nov 7, 2006 | 07:13 PM
  #22  
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From: Dirty Jersey
ooops, read the post again
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Old Nov 7, 2006 | 07:18 PM
  #23  
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Um, yes, everything I said is in relation to the IX and with the knowledge that the IX ECU is more complex. It _can_ reduce boost when it detects extra airflow with no tuning or boost controller, but it doesn't always react this way. Sometimes, boost increases significantly due to less backpressure, and there's no way to know unless you have a boost gauge. Not having a boost gauge is begging for a blow motor.
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Old Nov 7, 2006 | 07:21 PM
  #24  
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From: Alaska
Reread my editted post.
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Old Nov 7, 2006 | 07:23 PM
  #25  
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"Not having a boost gauge is begging for a blow motor." What the heck!!! Its all ok Warrtalon..
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Old Nov 7, 2006 | 07:24 PM
  #26  
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From: Dirty Jersey
i wonder if IX's ecu can detect when the fuel isn't 93... thats what am i tuned at, would it lower the boost or the air flow to compensate?
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Old Nov 7, 2006 | 07:37 PM
  #27  
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From: Dirty Jersey
Originally Posted by Warrtalon
Potholes, it doesn't actually know the octane, but if the lower octane causes knock, then the ECU will pull timing to compensate. However, people HAVE blown motors from accidentally using 87oct, so although the ECU is good at preventing too much detonation, it can only go so far...
thanx, the guy at the gas station accidently put 87 in my tank, i caught him before i left. the gas station agreed to pay the tow and all that. so i towed my car to turbotrix, they didn't drain the tank compeletly, left like 2-3 gallons of 87 and then put 6 gallons of 93 in it told me that im fine to get on it... i didn't hear any knocks or anything, wonder if i should get a compression test.
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Old Nov 7, 2006 | 07:47 PM
  #28  
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Quick question...say perhaps I install my TBE and my turboXS boost controller...if I had the boost controller set at 0 ...would that help prevent any spiking ?
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Old Nov 7, 2006 | 07:54 PM
  #29  
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Originally Posted by SavEVOIX
Quick question...say perhaps I install my TBE and my turboXS boost controller...if I had the boost controller set at 0 ...would that help prevent any spiking ?
1) The TXS MBC is one of the worst possible MBCs for the Evo. I suggest selling it and getting a Forge UNOS or Hallman Pro. You will regret if otherwise...

2) There is no "0" setting per se, but if you turn it all the way to minimum, then not only will it not spike, but you will only see base wastegate pressure, which is 11psi. I don't think you want to do that.

3) Why are you concerned about spiking? It's normal and expected, and as long as you keep it within the proper levels, it will be perfectly fine.
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Old Nov 7, 2006 | 07:55 PM
  #30  
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From: Dirty Jersey
Originally Posted by ihatepotholes
thanx, the guy at the gas station accidently put 87 in my tank, i caught him before i left. the gas station agreed to pay the tow and all that. so i towed my car to turbotrix, they didn't drain the tank compeletly, left like 2-3 gallons of 87 and then put 6 gallons of 93 in it told me that im fine to get on it... i didn't hear any knocks or anything, wonder if i should get a compression test.
any thoughts on that one?
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