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Old Oct 24, 2008 | 10:12 AM
  #21  
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The power looks good to me. Only thing is it comes on late, but its likely making the pulls in 2nd. I'll be retuning my car soon. I can't wait to see the difference between the M6 and 4l80, at the same boost level.
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Old Oct 24, 2008 | 10:56 AM
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Nice, but am I the only one noticing the AFR at the bottom of the gragh??? 13 dipping down to barely 12 and back up to 13??? That looks more like what I would see on a NA car. I would think that should be a bit richer down in the 11.5 range if it was mine...
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Old Oct 24, 2008 | 11:11 AM
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Originally Posted by kbracing96
Nice, but am I the only one noticing the AFR at the bottom of the gragh??? 13 dipping down to barely 12 and back up to 13??? That looks more like what I would see on a NA car. I would think that should be a bit richer down in the 11.5 range if it was mine...
I know the graph shows that he went to almost 7000 but the dyno pull actually stopped at the 6500 rev limiter. I have the number version of the dyno graph and at 6500 the A/F is 12.47 which is a little lean but it seemed to do ok.
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Old Oct 24, 2008 | 01:47 PM
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I don't know about you all, but 15psi of boost and 12.5 AFR is a LOT lean...

I always keep boosted car/trucks in the 11.5 or lower AFR especially on the dyno, cuz they have a tendency to get leaner on the street.
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Old Oct 24, 2008 | 04:00 PM
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Originally Posted by 30th t/a
I know the graph shows that he went to almost 7000 but the dyno pull actually stopped at the 6500 rev limiter. I have the number version of the dyno graph and at 6500 the A/F is 12.47 which is a little lean but it seemed to do ok.
I'd say that's alotta lean. That is just a mail order tune? If you keep it there, it won't do ok for long. Its nice results through an unlocked 80e. Get some more fuel to it and see how you do!
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Old Oct 24, 2008 | 06:23 PM
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Hell yeah 600 and 600 congrats, yeah that will be fun.
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Old Oct 24, 2008 | 06:45 PM
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Originally Posted by 30th t/a
Thanks Guys! I havent even hit with 15psi yet. 11psi was a handful on the street.

BTW....we had to tune the car in 2nd gear. For some reason 3rd gets to 4400 and slips to 6500. My tranny guy is going to check the line pressure & stuff. Then I'll get it back on the dyno with 16-17 psi. However on the street, 3rd seems to be Ok. Although I havent done a full blast 1st to 3rd run. From what my tuner told me, I would have seen higher numbers if we could have gotten 3rd gear to hold.
Question.. wouldn't you get a higher dyno result pulling in second than 3rd due to the gear ratio? Not sure with an auto tranny.
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Old Oct 24, 2008 | 06:58 PM
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Originally Posted by Pipelayaz
Question.. wouldn't you get a higher dyno result pulling in second than 3rd due to the gear ratio? Not sure with an auto tranny.
from everybody I talked to and the research ive done on here, 2nd will dyno 15-20 lower than 3rd.
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Old Oct 25, 2008 | 09:27 AM
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Originally Posted by kbracing96
I don't know about you all, but 15psi of boost and 12.5 AFR is a LOT lean...

I always keep boosted car/trucks in the 11.5 or lower AFR especially on the dyno, cuz they have a tendency to get leaner on the street.
Since my shift points are at 6000 and the A/F is 12.1 there, I should be ok.
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Old Oct 25, 2008 | 09:45 AM
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Do you have any pictures of your build?
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Old Oct 25, 2008 | 09:58 AM
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Originally Posted by skyhighsami
Do you have any pictures of your build?
Here is a build thread from the guy I bought it from:
https://ls1tech.com/forums/showthrea...380&highlight=
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Old Oct 25, 2008 | 10:27 AM
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The car will make more in 3rd than 2nd, as noted. That AFR is unacceptable though.
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Old Oct 25, 2008 | 10:45 AM
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The AFR on my car was in the high 10's, low 11's the entire pull FWIW. I'd hate to see something bad happen John, might want to check into that
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Old Oct 25, 2008 | 11:54 AM
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Bryan (my tuner) said he tried adding more fuel at 6500 but I was out of fuel. Im running dual 255 pumps and 60lb injectors. The rest of the fuel system is stock. Is somehting screwed up with my fuel setup? I would think what I have now would support more than 600rwhp.

Hopefully my tuner will chime in on this.

Last edited by 30th t/a; Oct 25, 2008 at 12:56 PM.
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Old Oct 25, 2008 | 01:42 PM
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Originally Posted by 30th t/a
Bryan (my tuner) said he tried adding more fuel at 6500 but I was out of fuel. Im running dual 255 pumps and 60lb injectors. The rest of the fuel system is stock. Is somehting screwed up with my fuel setup? I would think what I have now would support more than 600rwhp.

Hopefully my tuner will chime in on this.
Your fuel system should support WAYY more than that. How are your lines plumbed? What size lines? What kind of regulator/pressure? Rails? Two 255s and 60lb injectors should feed at least 800rwhp IMO. I would DEFINITLY not run my car that lean. Try to keep it in the 11.1--11.8 range.

PS--Thank for the 700rwhp shout out lol.
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Old Oct 25, 2008 | 02:02 PM
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Originally Posted by ninetres
Your fuel system should support WAYY more than that. How are your lines plumbed? What size lines? What kind of regulator/pressure? Rails? Two 255s and 60lb injectors should feed at least 800rwhp IMO. I would DEFINITLY not run my car that lean. Try to keep it in the 11.1--11.8 range.

PS--Thank for the 700rwhp shout out lol.
All of my lines are completey stock, no regulator, stock rails. I just had a guy splice another walbro 255 pump to my current racetronic walbro 255 pump. Then I installed the 60lb injectors.
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Old Oct 25, 2008 | 02:15 PM
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Originally Posted by 30th t/a
All of my lines are completey stock, no regulator, stock rails. I just had a guy splice another walbro 255 pump to my current racetronic walbro 255 pump. Then I installed the 60lb injectors.
Ahhhhh. Here lies your fuel issue.
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Old Oct 25, 2008 | 02:25 PM
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Originally Posted by ninetres
Ahhhhh. Here lies your fuel issue.
Which part of it?
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Old Oct 25, 2008 | 02:44 PM
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Originally Posted by 98Camarod
Which part of it?
Stock lines, regulator and rails. Add a boost referenced regulator, -8 feed, and -6 return. Problem solved.
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Old Oct 25, 2008 | 03:04 PM
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Originally Posted by Frost
The car will make more in 3rd than 2nd, as noted. That AFR is unacceptable though.
I agree... the AFR is abit to lean, I would adjust it to a safer level.

Also, 3rd is your 1:1 gear and is the gear you want to dyno in, for comparison reasons. You'll make more in 3rd, no doubt.
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