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428 Big Thanks To Tunehouse


TURBO4LT

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  • Member For: 19y 5m 7d
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  • Location: NSW

This tune would obviously be better and quicker than your 396rwkw tune, it must be an awesome drive now.

It easily spun the tyres in third before, and even more so now I'd imagine.

Well done to Jim for extracting that sort of power from the beast.

Your getting brilliant economy too. 8.7L/100kms on a trip IIRC?

I've been itching to go for a spin but it hasn't happened... Rain, holidays, double demerits... You busy tomorrow Frank??? lol.

I know, more rain and Bathurst... There's always next week I guess.

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  • 6 months later...
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  • Member For: 19y 7m 18d
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I thought that dropping the boost via an eboost didn't result is richer afr's on lower boost because you command an afr in your flash tune and the ecu decides how much fuel it needs?

I may be way of the mark here so any insight would be great.

Very nice car TURBO4L. How long ago were the rods changed, and how did the pistons look? I remember Ninka mentioning a few years back that his ba pistons let go at around 360rwkw? no drama's for you in this respect but!

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You're correct and theoretically that's what should happen BUT from my experience richer AFR's result when I drop boost and keep my fuel settings the same. Hers's an example where you can see the richer afr's on lower boost.

http://www.fordxr6turbo.com/forum/index.php?showtopic=61665

Having said this, I do not re-calibrate the speed density tables. In a nutshell I set the base fuel table to what I desire and adjust the injector high slope. Tunehouse are one of the best in the game so their calibrations would be more advanced than mine.

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  • Member For: 21y 5m 23d
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I thought that dropping the boost via an eboost didn't result is richer afr's on lower boost because you command an afr in your flash tune and the ecu decides how much fuel it needs?

I may be way of the mark here so any insight would be great.

Very nice car TURBO4L. How long ago were the rods changed, and how did the pistons look? I remember Ninka mentioning a few years back that his ba pistons let go at around 360rwkw? no drama's for you in this respect but!

Motor was done about 2 years ago just for durability although all the parts that came out were in top shape.

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  • Member For: 21y 5m 23d
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  • Location: NSW

You're correct and theoretically that's what should happen BUT from my experience richer AFR's result when I drop boost and keep my fuel settings the same. Hers's an example where you can see the richer afr's on lower boost.

http://www.fordxr6tu...showtopic=61665

Having said this, I do not re-calibrate the speed density tables. In a nutshell I set the base fuel table to what I desire and adjust the injector high slope. Tunehouse are one of the best in the game so their calibrations would be more advanced than mine.

Ill try doing a few power runs on the weekend on different boost settings and see how the AFR's pan out. The tune is pretty good I've been messing around with it since I got VCM but am having a hard time improving on Jims work but also having fun learning.

Just did a 2000km + trip and returned 9.1lt/100 which is pretty good for the power out put, about 500km of that was in Melb CBD.

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FYI, when logging via the LM-2 on the street I see leaner AFR's than what I do on the dyno. I had initially set AFR's to 11.8 when tuning on the street, however when I jumped on the dyno I was seeing just over 11. I initially thought it was a loading difference between the dyno and street, however I went and logged load on the dyno and it's pretty much identical to what I'm seeing on the street. My boost does drop in the high rpm on the dyno compared to the street but that does not explain the mid RPM difference. After looking at some AFR data for different instruments the LM-2 did show leaner than actual AFR so it may just be a difference between instruments. Anyways just don't be alarmed if it's a little leaner than expected as you know you're working with a very good tune. Cheers and enjoy!

edit....in saying power runs, I gather you're going on the dyno and not using your LM-2 AFR meter...whoops!!

Edited by IH8TOADS
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