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Thread: 3.5L NA w/272's and Chromed ROM

  1. #21
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    Few questions!!
    1) How do I actually edit the table? i.e. turning from on to off? God damn I feel noob...
    2) I have downloaded the TT ROM, mainly because it has a bit more agressive timing in it then the NA ROM, however I was reading due to the NA ROM having more resolution, the car will 'run better' on an NA ROM, should I use the 3L NA ROM or the TT ROM?

  2. #22
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    It will "run good" with either ROM installed. I drive my SL with a TT ROM on it all the time.

    If you're keeping the variable intake, you'll need the NA ROM though.

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  3. #23
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    Quote Originally Posted by TUFFTR View Post
    Few questions!!
    1) How do I actually edit the table? i.e. turning from on to off? God damn I feel noob...
    2) I have downloaded the TT ROM, mainly because it has a bit more agressive timing in it then the NA ROM, however I was reading due to the NA ROM having more resolution, the car will 'run better' on an NA ROM, should I use the 3L NA ROM or the TT ROM?
    1. use the "=" key, or if you are changing bits, use the "[" or "]" keys.

    2. use the NA rom, and copy in the TT timing map. best of both worlds. (literally ctrl c, ctrl v the table into the other)
    rise and rise again until lambs become lions

  4. #24
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    Na no variable intake, using the 3.8 one! Thanks guys thats sweet as. Ill purchase the na rom this week and do just that. Perfect!
    Much love <3

  5. #25
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    Quote Originally Posted by TUFFTR View Post
    Way ahead of you! Already have a 74 Block, 75 crank and forged 74 rods. Just need to find the $800 to buy pistons.

    First on the list is new wheels/tyres and the exhaust and tune....then the engine build can start :P
    That's close enough I guess. I was talking about an actual 6g75 bottom end and moving heads, brackets and everything else over from the 74

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    Quote Originally Posted by n2nsanity View Post
    That's close enough I guess. I was talking about an actual 6g75 bottom end and moving heads, brackets and everything else over from the 74
    No point in trying to customise stuff to fit. I'd rather use the drop in block and bore out the internals. Looks stock that way. Not interested in the heads, I spent years yearning for DOHC heads and now people are like, nah they are rubbish put the SOHC ones on. NO! I like my DOHC heads!

    Taxtrix 2.0 cable arrived tonight so if I can suss out why my alternator light isnt coming on by Sunday hopefully I can flash it this week

  7. #27
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    I'm not lying when I say I spend a few hours each night reading over Chromed ECU stuff in the hope I get my head around it.

    Another questions, I notice the SL ROM is V1 and the TT ROM is V2, and I note Greg making mention of a few things he didn't quite get right in V1 as opposed to V2. Does this mean the idle stuff isnt as good on the V1 SL ROM as it is the TT ROM?
    Also, is there anyway to get the massive 15x30 maps on the NA ROM like there is the TT ROM?

    Also, I just run one rear o2 sensor......would someone be able to point me to which bit I enable/diable to make sure it only uses the one O2...
    Last edited by TUFFTR; 07-01-2013 at 08:01 AM.

  8. #28
    I lack color... verified

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    I didn't get stuff right with V1 turbo. V1 SL is perfect.

  9. #29
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    Quote Originally Posted by Greg E View Post
    I didn't get stuff right with V1 turbo. V1 SL is perfect.
    Awesome mate, just good for clarification! Any word on the bigger resolution maps for NA? It will be good as I'm positive I ordered a flashed NA ECU but the sticker says it's TT, so I'm keen to read the ROM on it and see what it is. (you know to put that curiosity bug to sleep!) Either way when the car fired up, for being a bigger motor with cams i was SO happy. Just started and idled right up, how can you go wrong? Why would anyone with an NA every go standalone again?!

  10. #30
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    Greg, I also noticed on the TT ROM there are such features the wideband sensor scaling which isn't on the NA ROM, I'm gathering there's a good reason for this. I'd prefer my wideband to be hooked up so I might just stay with the TT ROM. Argh, choices.

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