Quote:
Originally Posted by Can'tHave2MuchHP
I would trust Matt too. But I don't think he would have you put a 2.30" upper and a bigger lower pulley on stock cooling/stock cam. Or he did and that meth is the crutch for your setup. Again, 18% overdrive puts these blowers at over redline or the recommended max RPM or 22,000. I think a 2.30 alone may be over 18% and most lowers only come in a minimum of 9% overdrive. You sure he put a lower on? I don't have the time to find and copy the info but if you search there's lots of reasoning behind pulleying the LT4's 1.7L Eaton. Over spinning and your car will pull timing even if IATs are in check.
And yes those numbers are really good, on a normal pulley setup with meth most should hope for a max of 680 RWHP. Without Meth, 630. Some with E85 and ported blowers have hit 700 RWHP. But I've never seen as high as 722 RWHP without opening up the engine.
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Yea, I think we went with the lower and yes, I'm positive we went with a lower. Let me go see what number we went with...........Hold please. Yes, the 9.17 Lingenfelter lower. I'm with ya. Look, I'm not a car guy. That's why I pay people so I kind of trust Matt and his builds considering this is what he does for a living. I can tell you this, he wanted me to go E85 instead of Meth, but I wanted Meth so he's like, you are the customer. Once we go to the next level, we'll cam, do the whole fuel system and upgrade the charger. I'm not sure how much HP the drivetrain can hold stock, so I'm going to push it a little further. Matt wants to go E85 and Meth so. That will prob be my next mod. All this stuff for the most part might as well be in Chinese. I understand the basics, but understanding how everything works when put together is something he has to teach me, so I just let him do his thing and he says............pay me this amount. haha.
We were at 668 without meth on my last pull.
As mentioned, we did have knock without meth at the high rev range. Enough to throw the CEL as a misfire. So, we added plugs this time. All I know, car runs a ton better and a whole hella lot smoother. Delivery seems smoother and not as hard core as it was before.
I laid it down on some Mustangs last night and it was so glorious. I love the meth kick in. I was on a can of Torco too last night. Not sure if that really helps, but the car seems to run better when I feed it Torco.