No, you're definitely not out in left field. Certainly not too far out there anyway. :) As always, I don't claim to be an expert myself.
Whether the fuel is injected at the port or in the cylinder may not change much. But I'd have to think more about that.
Valve timing is definitely used...
Testing was done at all the boost the stock turbo can make. Actual numbers will be in that thread on back pressure that I started (sometime in 2016 I'm sure). Once airflow flatlines and boost is dropping you are generally compressor limited and at the mercy of whatever back pressure blows the...
I did not. The car only had a few thousand miles on it so many parts were reused. I tightened the flare nut according to 25 years experience working on cars and 20 years experience in working on semiconductor machinery, which is a bit hard to describe here. If you can replace the line and follow...
I changed it myself. I had already done the motor build on my car by that time. The HPFP is pretty easy, right on top of the motor. I do have the factory manuals for it but I don't recall anything special in there. With most HPFPs on different cars you do want to have the pump cam low so you're...
The only issue I see is that back pressure on these cars is really quite good. I have a thread on here somewhere where I measured it. Having EMAP at 2-3 times higher than MAP is not unusual at all. If I remember correctly, our back pressure is only around 1.5x boost.
Nice job!
The random cool weather we got was nice, but that car was still running within a couple tenths of that in 90 degree weather if I remember correctly. More importantly it was only about 1 mph slower, the ET is mostly in the 60 foot. Once compressor limited, inlet conditions determine...
I bought the block and crank new, separately. They were pretty reasonable, and I had a good discount through a friend on top of it. This means down time while you build up the new long block, but the short block assembly can be done in advance at your leisure, and that's where all the time goes.
The HPFP definitely struggles more in the midrange than up high. Part of the reason is cam RPM. Another part is the fact that these are positive displacement pumps that, because they turn at cam speed, are tied to fuel flow required per rev, not per time. At peak torque, airflow (and therefore...
Figured I'd give this an update after another year. The other motor build thread made me think of it. I daily drive it three seasons. Not a single misfire issue since the new HP fuel pump went in. The car ran high 11s last season and made 390 whp. I put a lot of runs on it, did a lot of testing...
I want to say my engine cost me about 5k, doing everything but machine work myself. It was early 2015 so it's been a couple years. New block and crank from Ford, CSS, etc. Perf makes a great point about the time factor, don't expect to get something like this done in a week. It takes time. Back...
Thanks! I think I got it working pretty good, but there's always room for improvement. :) HP is 390, but torque I've seen up to 475 if I really load it up down low. I did find 75 whp at 3000-3500 which I really hoped would improve the 60 foot, but I never did get it to materialize. It still...
Power may be PCM controlled and limited in stock form, but the whole point of tuning the thing is to get around all that. The only limiters my engine is subject to are the ones I want in place.
Freeing up the exhaust will still reduce back pressure at a given boost, which increases VE and...
The suspension is basically stock. Kait bought a bunch of stuff for it that I never installed. I think we did the vertical links and that's it. We were both getting low 1.7s on the stock tires. The 11.9 pass was with a 1.59 if I remember correctly, MT drag radials.
According to the spec sheet from Ford, manuals were 3.31s, 3.55 performance pack. Only on the autos does it list 3.15s as standard, 3.31 as optional, and 3.55 performance pack.
Seriously. Add converter multiplication to that too. When you start launching in second gear and finding gains, or running powerglides and tall gears to hook small tires on light cars, you start to look at these things differently. This is really just an extension of the age old 2 speed vs 3...
Gear ratio depends on a balance of power, weight, and traction. If you're spinning the tires in first gear, more rear gear isn't going to help you. Conversely, if you're running a 3.15 gear you most likely have traction (with radials), and need a bunch more launch power to make it work well. The...