SHOdded said:Those turbos are really putting out! Good idea to back off a bit for daily driving. Bpd's daily tune was at 500 awhp but he has a built block. At the very least ARP the heads. I would still have doubts about the rotating assembly tho.
StealBlueSHO said:802SHO said:SM105K said:Nice numbers bud, told you about the TQ huh? Cant wait to see what she does.
Yup and pretty insane if you ask me. I almost want to detune her lol!
I would.... Nice numbers.... a lot for a stock block...
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AJP turbo said:StealBlueSHO said:802SHO said:SM105K said:Nice numbers bud, told you about the TQ huh? Cant wait to see what she does.
Yup and pretty insane if you ask me. I almost want to detune her lol!
I would.... Nice numbers.... a lot for a stock block...
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You should too MR. 484awhp/496awtq! All of these upgraded turbo numbers on these cars soooo far exceed what the stock rods and pistons were made for. It's no different than a drug you want more and more and seemingly can't be satisfied.
802SHO said:Tuner asked me if I had a preference for doing the pull. He actually asked if I wanted to just do a 40 dig until 120...ok!? Why not? He loaded the dyno to make the SHO as if it was weighing 6500 pounds. He with the extra load it will hit boost sooner and hold it longer. Ok!
I really wish he would have just done a single gear sweep so we could've seen the curve and I don't like the extra loading and shifting on the dyno because the weight of the rollers and loading but it survived.
Two "digs" on the mustang dyno at 19 psi she made 463awhp and 569 awtq!!!! With traction control off she squirmed in her restraints .....man it was badass! I sat shotgun and data logged for Brad! The dyno has a projection screen in front of it that shows you all the dyno info right in front of you! Wicked cool! After the two pulls at 19 psi I flashed back to my 18 psi tune for a comparison. 18 psi pulled 418 awhp and 521awtq. A big difference between 1psi....roughly 40 awhp and 40 awtq on 1psi. That's nuts! All in all it was really fun and I'm really pleased with the numbers. The tuner looked at AFR which was 12.0 and was equally impressed with the tune as he was with the car.
Your AFR is actually 11.25 target. I wouldn't run a 12.0 AFR for boost. The shops 02 sensor was probably calibrated and scaled for gasoline which has a stoic of 14.64 but even that would show about 11.76. Stoic of E10 gas is 14.069 so your lambda target of .80 equals 11.25 afr. Stoic x lambda = AFR
Actually your afr through the pull is about 10.4 to 11.54 so you are plenty rich
And being that you don't have catalytic converters primary or 3rd and your AFR's and nice and healthy and you are spraying meth and a relatively low aircharge temps I didn't think your soot coming out was too bad...I see that a lot on dynos...Your ambient air temp was like 60 degrees and your IAT2 was only 62!!! At that kind of boost and back pressure the exhaust pulses are sucking and getting reversion and cylinders are not totally clearing there is a lot going on. But from a datalog and vitals it all looked nice in the log. Even watching drag strip runs at WOT you often see pufts of soot when going all out especially on a catless car
And your meth and stft's are in the low .80 range so you are probably getting a good cleaning effect being that your meth is accounting for almost 20% of your delivered fuel volume. But it's a lot of power no doubt. The dyno graph looked nice and smooth so I don't see evidence of spark blowout but dyno operators love to leave the smoothing really high.
SBS I see that you have taken well to the "magic number"...I try to stay away from that but it happens with every platform. It's ok to use a magic number for acceptable power as a guide but not bible. What will you do if you crack a ring at 420whp? Will you search for a reason why the failure happened or could you accept that a failure was eminent because you far exceeded design specs? I do non destructive testing on metals by day. Often only "batches" materials will get sampled and tested in a car like this. Unlike a Ferrari that puts every rod through real time radiography. Often a connecting rod or piston can have fractures of discontinuities that exist from day one and never be a problem because of the over engineering but then at increased power defects become exposed and rear their heads when they wouldn't have otherwise.
2 things can be true at the same time: you can have a good tune that exhibits nothing dangerous except power. And you can have a catastrophic failure. It doesn't have to be either or. Often people will look to the tune when a failure happens but what about the fact that at 484whp you have added over 200 crank HP
My coyote mustang makes 600whp when detuned...Everyone says stay below 650...Not that much difference so if I blow it up at 600 is it the tuners fault? I didn't tune it by the way lol.
I have not doubt you have a great tune but I feel you may have a false sense of security when running as low as even 450whp
StealBlueSHO said:There isn't really a magic number per se.. but based on previous data.. at 500awhp+ / 500awtq+ there is a greater chance of a major problem on stock components and drive train.. I can think of at least 3-4 cars off the top of my head that hit those numbers and then had major failures afterwards... Although yes, we do see many failures below that number as well.. the ratio of failures at 420awhp vs 500+awhp lends itself to the assumption that 500awhp+ seems to be a point where its not matter of if, its a matter of when.
My tuner is fantastic, but if the motor lets loose.. I am sure it wasn't due to an issue in the tune.
StealBlueSHO said:@AJPTurbo... pretty close example? LOL...
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shoNoff said:The fact is whether you are adding 1whp or 1000whp it’s a gamble. You are doing things the factory never intended these parts to do. Racing, modding it’s all a gamble. That’s part of what makes the rush so great when things work out.
SM105K said:I have no opinion on the spacers, but the tail pipes.......I know what my SHO is getting. That looks amazing.
802SHO said:SM105K said:I have no opinion on the spacers, but the tail pipes.......I know what my SHO is getting. That looks amazing.
https://www.ebay.com/itm/1Pair-Staggered-4-Dual-Out-2-5-In-QUAD-Exhaust-Tips-For-Camaro-Firebird-LS1-SS-/262824487485
Send It!