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Type: Posts; User: HoP

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  1. Replies
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    I log the AFR through the dyno wide band and AFR...

    I log the AFR through the dyno wide band and AFR is 11.3:1

    I've tried loading the dyno two ways: Super flow Auto dyne allows a few different methods of loading vs other dynos

    1st - I hold the...
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    2008 LS3 A6 twin turbo issue

    Good afternoon all,

    I'm having a strange problem with a twin turbo vette. The mods are:

    STS twin turbo kit
    Tial Sport wastegates with 10lbs springs (no refference lines atm just mechanical for...
  3. Siemens 60 tall Injector info needed for 2.5 enhance

    I applied the 2.5 os to a 06 E38. It has changed the fuel/offset from offset vs. volts vs. vacuum to offset vs. pressure vs ignv. I have Greg's data cd and his values are only for the old os. Can...
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    Under your proportional section of ol/cl fuel...

    Under your proportional section of ol/cl fuel you have airflow mode. This is read against lb/min. drive the car and scan your o2 sensors. usually with the headers around 15% throttle and light load...
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    Closed Loop Proportional for Headers

    I've been screwing around with this for awhile. Every manufacturers headers are different and thus making tuning this table a must. However it seems that the census majority is to just add 25% to...
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    Your timing map is fine there's not to much spark...

    Your timing map is fine there's not to much spark aside from a lack there of. You need to observe where the engine makes peak torque and modify your timing table accordingly. You need to taper the...
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    Keeping it simple, don't over think it. If the...

    Keeping it simple, don't over think it. If the car did not do it stock but now does it after a swap using the same factory injectors means one thing. You've altered the valve timing events. Usually I...
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    15,056

    Wrong injector data or improperly configured eoit...

    Wrong injector data or improperly configured eoit table can do it
  9. Replies
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    18,416

    Maybe I should disconnect the up pipe going into...

    Maybe I should disconnect the up pipe going into the maf right? Because according to your superior knowledge with the ls7 it is impossible to move that much air NA.

    Furthermore a "junk combo"...
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    18,416

    I'm aware of the o2's being high on the mv that's...

    I'm aware of the o2's being high on the mv that's not the discussion. The discussion is airflow through the maf. And I put up another run showing just that with o2 sensors in the .860's. The point of...
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    Here's the log after applying the enhancement....

    Here's the log after applying the enhancement. The AFR was 11.8:1 at peak torque @ 5600 rpms and leaned out to 12.4:1 at peak horsepower.

    The injector data is spot on that's why I put the tune up,...
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    18,416

    That car with the 2nd log is from a factory 06...

    That car with the 2nd log is from a factory 06 z06 with my head and cam package. it runs factory injectors (ls7), the first log and tune are from a 09 z06 which runs ls9 injectors
  13. Replies
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    18,416

    This car had ARH long tubes and the O2 sensor...

    This car had ARH long tubes and the O2 sensor bungs are almost 1.750 inches tall. The O2 itself barely comes into the collector. I have 2 widebands that I run on the dyno, it was perfect at 14.4.to...
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    Data for the injectors comes straight from a 2012...

    Data for the injectors comes straight from a 2012 zr1. These heads we have done are very efficient, the combustion chambers can take a lot of spark, they flow 418cfm. This might be the contributing...
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    An update, I had to upgrade the OS so it would...

    An update,

    I had to upgrade the OS so it would read a higher maf. After the upgrade it ran out flawless.

    Injectors are LS9 and they max at @97% idc. It really does pull that much air, I was...
  16. Thread: Best wide band?

    by HoP
    Replies
    31
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    17,267

    Daytona Sensors has a really good wego IIID setup...

    Daytona Sensors has a really good wego IIID setup out. Superflow uses them for their dyno's. I use them on mine as well, and they have a free air calibration that you can do to ensure the o2 is...
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    I though that once you pegged 512 grams per...

    I though that once you pegged 512 grams per second which is 67.7 it was time to go bigger. Scaling allowed for more hertz, your still governed by lbs/min

    I think I had it back words, thanks for...
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    Here is the log and tune

    Here is the log and tune
  19. Replies
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    Injectors only going to 78% DC

    Attached is a log and tune for this LS7.

    Punisher Cam from WCC
    Brodix heads custom port work 274cc
    LSXR 102mm Intake w/ NW 102mm TB
    2x3 Kooks long tubes with corsa cat back
    Hurricane Intake.
    ...
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    Pulled the timing chain cover and verified proper...

    Pulled the timing chain cover and verified proper cam timing.

    With the sump pan down again I was closely looking at the reluctor wheel and I can see a spot where the machine shop drilled the...
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    Case learn is not possible, I can't even let the...

    Case learn is not possible, I can't even let the car come to the temp. I'll post a log tomorrow morning. Thanks
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    P0336 with 383 build

    I put this up over at LS1 tech.

    Customer brought me in a 01 corvette ls1 383. It ran fine with the factory motor but he broke a piston to boost. A shop in northern ca built a 383 for him and ever...
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    That right there is where it starts. You're not...

    That right there is where it starts. You're not going to understand the basics of engine calibration nor the reason why it's done without doing some basic homework. It appears you're asking for...
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    Save yourself the aggravation and just grab a set...

    Save yourself the aggravation and just grab a set of SD 60's.
  25. 2013 GS Vette "Object refference not set to an instance"

    Keep getting this error. Sometimes it takes 4 tries to push the flash. Always happens when the scanner is in the background and disconnected.

    Computer is up todate
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