Layzboy Posted September 3, 2013 Report Share Posted September 3, 2013 So i finally got a tune on my l28et and on 15psi stock block and head it made 239whp and 259tq on a mustang dyno Which is pretty good in my opinion but nowhere near the 350 that people say they easily make Anyways heres a vid of my pull on the dyno feel free to creep my other videos aswell lol thanks http://youtu.be/Qi1_aGA8gf0 click the ads etc hahah jk Quote Link to comment
Layzboy Posted September 3, 2013 Author Report Share Posted September 3, 2013 Heres another vid i made just playin with imovie haha Quote Link to comment
72240z Posted September 3, 2013 Report Share Posted September 3, 2013 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. Quote Link to comment
Layzboy Posted September 3, 2013 Author Report Share Posted September 3, 2013 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 Quote Link to comment
Layzboy Posted September 3, 2013 Author Report Share Posted September 3, 2013 I read that post u linked and i think i see where the hp gains he is gettig is coming from hes running 18deg timing at 15psi im running 8deg Quote Link to comment
Layzboy Posted September 3, 2013 Author Report Share Posted September 3, 2013 Looks like ill be going back to the dyno this week Quote Link to comment
72240z Posted September 3, 2013 Report Share Posted September 3, 2013 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. Quote Link to comment
Layzboy Posted September 3, 2013 Author Report Share Posted September 3, 2013 Trying to keep it safe since i drift the car and ot sees redline a lot so i had them keep the timing super safe Quote Link to comment
72240z Posted September 3, 2013 Report Share Posted September 3, 2013 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. Quote Link to comment
SlottedMagz Posted September 3, 2013 Report Share Posted September 3, 2013 The fact that this is about 15 min from me/Boston and I haven't seen it makes me mad. I have to see your z in person it's so sexy Quote Link to comment
Layzboy Posted September 4, 2013 Author Report Share Posted September 4, 2013 Yea this dyno is known for being the heartbreaker around here ehh its w.e for 239whp it feels insanely fast maybe its due to the 4:48 rear end gears 1 Quote Link to comment
Layzboy Posted September 4, 2013 Author Report Share Posted September 4, 2013 As for slotted mags where are u from?? I live in peabody and i only drive my car at night (not because of wangan midnight lol just because of job lol) Quote Link to comment
72240z Posted September 4, 2013 Report Share Posted September 4, 2013 I bet those gears make it feel break neck lol. My z has 4.11 and I know its very zippy. Did either of you guys go to the convention? Quote Link to comment
SlottedMagz Posted September 4, 2013 Report Share Posted September 4, 2013 I did my best to make it but unfortunately fedex fawked my shipping all up, so instead of getting my fuel pump and muffler in two days before the show I got them mid show. Needless to say I was very butt hurt but se la ve and whatnot. Layzboy I live in Lincoln right off of route 2 Quote Link to comment
72240z Posted September 4, 2013 Report Share Posted September 4, 2013 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... Quote Link to comment
captaingamez Posted September 5, 2013 Report Share Posted September 5, 2013 I am planning this basic setup pretty much. I have everything but injectors fuel rail and turbo. What EFI are you running? I have Megasquirt. I am looking for at least 300hp out of mine, and for daily. Quote Link to comment
Layzboy Posted September 6, 2013 Author Report Share Posted September 6, 2013 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 Quote Link to comment
Layzboy Posted September 6, 2013 Author Report Share Posted September 6, 2013 You can hear the whine after i coast Quote Link to comment
72240z Posted September 6, 2013 Report Share Posted September 6, 2013 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... Quote Link to comment
Layzboy Posted September 7, 2013 Author Report Share Posted September 7, 2013 Yea but i have a crazy vibration at like 60 cant figure it out i just rebuild my rearend all new bearings etc so i can rule play out so its either driveshaft improper balance or wheel bearing but my wheels have no play so idk its soo annoying Quote Link to comment
Layzboy Posted September 7, 2013 Author Report Share Posted September 7, 2013 The whine from the tranny ony happens when the wheel is vibrating Quote Link to comment
Layzboy Posted September 7, 2013 Author Report Share Posted September 7, 2013 Or whatever is vibrating Quote Link to comment
72240z Posted September 7, 2013 Report Share Posted September 7, 2013 Check all your bushings? Wheels high speed balanced? Idk its an annoying thing to diagnose... So many variables. Quote Link to comment
Layzboy Posted September 7, 2013 Author Report Share Posted September 7, 2013 Yea wheels are perfectly zeroed out all brand new bushings and suspension Quote Link to comment
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