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Top 2GNT Technical Turbo/Nitrous Tech topic #44413
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Subject: "How much boost with higher octane?" Previous topic | Next topic
CopperEclipse96Mar-07-03 05:21 AM
Member since Jan 14th 2003
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#44413, "How much boost with higher octane?"




          

If I went to the track, and used the 110 octane, or whatever the hell they have there, how much boost could I run with stock internals? What other options would I have for gas, and how much boost? Thanks.

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-Ian
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-1996 Mitsubishi Eclipse GS (SOLD!)
-2006 Nissan Frontier NISMO
-2003 CBR600RR
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Replies to this topic
RE: How much boost with higher octane?, BoostedGS, Mar-07-03 05:48 AM, #1
RE: How much boost with higher octane?, JustOne, Mar-07-03 11:21 AM, #2
      RE: How much boost with higher octane?, thedawg, Mar-07-03 12:28 PM, #3
           RE: How much boost with higher octane?, TeamMetalJim, Mar-07-03 08:59 PM, #4
                RE: How much boost with higher octane?, Jasvb TS2K2, Mar-08-03 05:02 AM, #5
                     RE: How much boost with higher octane?, fly1, Mar-08-03 05:45 AM, #6
                          RE: How much boost with higher octane?, Fast420A, Mar-08-03 02:47 PM, #7
RE: How much boost with higher octane?, Avenger EST, Mar-09-03 05:50 PM, #8

BoostedGSMar-07-03 05:48 AM
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#44415, "RE: How much boost with higher octane?"
In response to Reply # 0
Mar-07-03 05:49 AM by BoostedGS

          

Higher octane gas burns "slower" (I think that's right) which allows you to run higher boost with less detonation. BUT, this does not change the fact that stock internals can't handle the PRESSURE of higher boost.



You are not your job.
You're not how much money you have in the bank.
You're not the car you drive.
You're not the contents of your wallet.
You're not your fu**ing post count.

97 Eclipse GS - *SOLD*
01 Audi A6 2.7T
01 YZF-R6

  

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JustOneMar-07-03 11:21 AM
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#44430, "RE: How much boost with higher octane?"
In response to Reply # 1


          

Is it just me or does 110 smell good?

  

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thedawgMar-07-03 12:28 PM
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#44437, "RE: How much boost with higher octane?"
In response to Reply # 2


          

110 octane is usually LEADED, make sure what you're getting is unleaded.

I ran ~13psi boost on 112 octane with stock internals, you could probably get away with 15-17 if you had bigger injectors and an safc.

Raising the boost on stock pistons means either you ALREADY have a built engine in your garage waiting to go in, or that you're just stupid and/or crazy.

  

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TeamMetalJimMar-07-03 08:59 PM
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#44448, "RE: How much boost with higher octane?"
In response to Reply # 3




          

It depends on what kind of turbo you have. Supposedly the rods are the weak point of failure. Tommyboy was bending stock rods at ~13psi. I'm not sure if he had a Star Kit or the HRC kit...but from what I gather, they should be alright until somewhere around 300 crank hp. So try to keep it under 300.


95 Eclipse RS : 5 speed
Jeep TB writeup - http://www.dimensia.com:81/jimbo/JeepTBfor2gnt.html

  

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Jasvb TS2K2Mar-08-03 05:02 AM
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#44451, "RE: How much boost with higher octane?"
In response to Reply # 4




          

It's better to be safe than sorry unless you have $2k for a new motor. emoji. I run 8psi all day but even when I drop the 105 octane I won't go past 10psi. Just cause I am not ready for a rebuilt. And I figure if that won't win the race, than it's not worth it to prove something and in the process break something.. emoji


http://www.cardomain.com/id/jasvbts2k2
"The ONLY Honda I'd mod would be ASIMO"

  

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fly1Mar-08-03 05:45 AM
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#44452, "RE: How much boost with higher octane?"
In response to Reply # 5


          

Running with race gas will allow you to run higher boost and decreasing the chance of detonation, but if you still have stock internals, I wouldn't run over 10 psi. Even with a sufficient fuel system, the stock internals can't handle too much horsepower before piston rings and pistons lands start to crack/melt. That's just my opinion though emoji

___________
Kon C

"Sometimes, a man has to do what a man has to do."

  

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Fast420AMar-08-03 02:47 PM
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#44462, "RE: How much boost with higher octane?"
In response to Reply # 6


          

and that much higher than 10 psi and one little ping can be enough to crack the ringlands.


________________________________________________________________________________________
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www.Fast420A.com

  

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Avenger ESTMar-09-03 05:50 PM
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#44513, "RE: How much boost with higher octane?"
In response to Reply # 0


          

I dont' think you couls "make" enough boost with a standard t3 turbo to outrun 110 octane gas


A.D.P.
"...If you do too much, people become dependant. If you do to little, people loose hope. If you do it right, people won't be sure you've done anything at all."
bring it on...........

  

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