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View Poll Results: What's your 2 step target boost level on reg. street tires?
6-10 psi
32.73%
11-15 psi
45.45%
16-20 psi
12.73%
+21 psi
9.09%
Voters: 55. You may not vote on this poll

2 step boost level, what are you targeting?

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Old Feb 10, 2008 | 11:34 AM
  #1  
Aby@MIL.SPEC's Avatar
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From: San Elijo Hills, Ca.
2 step boost level, what are you targeting?

I was wondering what boost level people are targeting when they are using their 2 step on regular street tires?

i recently got my 2 step working & would like to hear what works best for other people / recomendations / experience.

i am also on the oem clutch, but i dont know for how much longer!

i have a fp-grn....you may want to note what turbo set-up your using too.

TIA

Last edited by Aby@MIL.SPEC; Feb 10, 2008 at 11:48 AM.
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Old Feb 10, 2008 | 02:12 PM
  #2  
thatguy's Avatar
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From: milfburn
Usually start at around 6k on stock turbo and either work my way a couple hundred rpms or down depending on track prep.
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Old Feb 10, 2008 | 02:24 PM
  #3  
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From: Anc
You might want to be looking into grabbing a new clutch soon. I had my rev limiter at 5.5k, wasen't enough boost built. Slipping clutches suck, on a green as well.
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Old Feb 10, 2008 | 04:01 PM
  #4  
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From: San Elijo Hills, Ca.
^ i am currently @ 5,500 on my grn, i did 2 launches earleir today, i had ~20 psi while pop'n & bang'n...

seemed like a lot, i was on the 2step for ~3 seconds
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Old Feb 10, 2008 | 05:31 PM
  #5  
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From: Oklahoma
WOT, 20PSI! What kind of timing are you running at 160-180 loads?
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Old Feb 10, 2008 | 06:57 PM
  #6  
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From: San Elijo Hills, Ca.
^ not sure of the loads, as i am running a aem ecu...

logged data claims 4deg @ 20 psi @ 5,500 rpm this is about 2 deg less than my cal file for the same map points.... i run 91 octane....unless i need to log something different than ign timing.....maybe total applied ign or something like that..... i will look to see what the final timing parameter name is called....

i have a 200 rpm split between retard rev & retard fuel cut...from what i have read, if i reduce the rpm gap, i will generate less boost.....

is there a agreed upon "correct boost level to launch at? i understand it is far easier to change your launching rpm than boost level.....

hence the reaason for this poll / post.

thanks for your input guys

Last edited by Aby@MIL.SPEC; Feb 10, 2008 at 07:03 PM.
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Old Feb 10, 2008 | 07:10 PM
  #7  
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From: ¯\(º_o)/¯
16-20psi
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Old Feb 20, 2008 | 09:16 PM
  #8  
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From: Fort Myers, FL
5,500 @ 10 psi
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Old Feb 21, 2008 | 11:43 AM
  #9  
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From: Orlando,Florida
6k 12 psi
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Old Feb 21, 2008 | 01:41 PM
  #10  
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From: Springfield, Mo
Stock turbo was 7 lbs, 3065 I havent tried yet.
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Old Feb 21, 2008 | 02:53 PM
  #11  
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From: San Diego
I'm on a green and i see 8-9 on pump, and 11-12 on C-16. 2 step set at 6800.
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Old Feb 21, 2008 | 11:28 PM
  #12  
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From: Florida
12-15psi boost @ 5800 RPM stock ecu tuned by Al Dynoflash
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Old Jul 9, 2008 | 07:28 PM
  #13  
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From: Truckee, CA
Reviving this thread, somewhat out of context.
I only build 6psi with the 2 step set at 5700rpm on reflashed stock ECU. '03, with just a TBE. Does this seem low? Stupid leaky plastic DV or other boost leak maybe?
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Old Jul 15, 2008 | 12:46 AM
  #14  
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From: mansfield ohio
6200 rpm, 12-15psi. custom Dynoflash, forge mbc and forge bov with 2 shims.
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Old Aug 25, 2008 | 06:36 AM
  #15  
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From: Slc Utah aka SL,UT
6000-6500 1bar of boost
evo ix turbo
91oct + 100% meth
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