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My z finally hit the dyno l28et holset hx35r


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Thats actually way low for 15 psi. The 350 people say they are making is at 15psi. 
http://forums.hybridz.org/topic/70343-l28-dyno/

Thats one example, big phil is another but I cant find the vid. At 15psi with his holset he was making 350ish as well. 

At the very least you should be breaking 300hp at 15psi, if not somethings wrong.  
 

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Then again big phils stuff is usually dynojet i think?? I cant see a car that makes around 115 to the wheels stock beig able to push 350 without some serious head work i think all the ones making over 300 stock block and head are guestimated dyno numbers these motors are torquey so they feel waay more powerful then they really are

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You dont need head work to reach that power goal on the L series but it is like the MAX before needing support mods like head studs and internals. At those numbers people dyno and show off but eventually with a stock long block they start exploding rads from blow by or shattering rings the very instance of a ping. I honestly think 300-320 is a safe range for a stock long block in good condition. which is very achievable at over 1bar boost. 

Idk if 10 degrees of timing would equate to 100hp but I guess that and the mustang dyno could account for it. Why is your timing so retarded? L series want lots of timing. With boost I would tune to 15-18 at the least. With tripples I run 22. 

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Thats way more then safe its retarded 16 degrees. Stock the l28et wants about 24 degrees. Ideally to be safe but also run the engine efficiently you should be 15-20, 20 being ideal. 

If your worried then turn down the boost and dial the motor in properly. Over 1 bar not even hitting 250hp is a waste. I bet with proper timing and 10lbs you dyno better then you did at 8 degrees and 15lbs. Be sure to use the same dyno to check though the mustangs are notoriously inaccurate. Actually now that I mention it you may get a gain just using a different dyno lol. 

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Ah that really sucks. I made it up with the wife but had trouble of my own. The fan controller broke in CT so every time I caught traffic I had to either hit the shoulder or break some laws. Then my throttle started sticking in NH and I couldn't idle the engine to diagnose it with no fan! lol Always an adventure... 

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Lincoln ri??? And yea its really peppy 3-5 is rediculously quick even with barely 240whp but i get this crazzzzyyy wine in 5th gear under partial acceleration and only higher speeds idk if my driveshaft is unbalanced and shaking the output of the tranny causing the noise i recorded the vibration and noise so ill have it up soon hopefully i can get some help lol so annoying makes it sound like a 70s time attack car lol

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Sounds like maybe transmission, hard to tell. I get a similar whine when letting off in 3rd. Believe its lateral play in the bearing. My rear 4.11 whines too lol, w/e 40yo sports car... 

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