The reason I ask. I live in a rural community and there are no stations around me that carry 91. I work 12 hour days sometimes weeks at a time so you don't exactly want to drive 20 mins each way out of your day to fill up working these hours. Sometimes I go out in the field and commute ~130 miles each way and carrying jerry cans full of fuel all time is no fun.

Anyways i have been sitting on a complete L swap for over a year now including all the hard to find and obsolete pieces such as the throttle cable, cruise cable, alternator bracket, heat exchanger bracket. Everything but the L fan shroud. Has approx 45k miles on all the wear items. Most from an 02 with the updated intercooler. I have been thinking about selling or parting out my L swap in order to buy some trick flow heads and cams. The mustang guys are making 390whp and 390wtq on 9:1 compression N/A with the trick flow heads on a 5.4 and full bolt ons with an amazing tourque curve, which would still be useful for a truck.

I am wondering which is the better direction for me. If I go N/A the compression would be ~9:1 just in case with a fully forged bottom end. If I go with the L swap It will be fully forged bottom end but stock heads. i do not want to pull the motor or heads again because I want more.

I am leaning more towards the trick flow heads because of the fact it would be easier to tune on 87 octane, the uniqueness (with modulars) and the chunky indle. But on the other hand the eaton whining is just awesome.

 

I run 87(actually 85 here in high altitude Utah same as sea level 87) in my mach I. It has the 4v Cleveland heads with closed chambers. 10 cc dish pistons forged TRW's. Different animal but it does make power and its nice not to have to find the better expensive gas.

 

You might consider methanol injection to increase octane.
There are two threads in the s/c forum at corral.net.
http://forums.corral.net/forums/superchargers/

 

It's a band aid fix. I don't want to get too in depth because it is difficult to understand. Water/meth injection will displace the air/fuel in the cylinder.The steam increases compression but displaces heat. There is a lot of info out there on it some some swear by it, some hate it. It is cheap and it works but it is a band aid fix. And ask yourself do you really want to run water into your motor?

 

can the L superchager be tuned to run on the 87? do you have E85 up there? i know you can run that but it may be too costly to swith everthing over for the E85.

 

Get a good custom tune for the L swap at 87 octane.
All they have to do is back the timing out of it so you don't get the pinging.

 

I wonder who would even touch trying to tune it for an 87 just get my *** home tune. I can not be tuned locally because there is only 1 dyno within 500 miles that deals with sct and they do mostly import junk. I wouldn't trust them with my lawn mower.

No e85 up here

 

best solution

 

Been doing it for years.

 

email custom tunes! there are several companies that do it. amazon tuning, woodbine motorsports, just to name a few.

 

Do the L-swap and custom tunes emailed from Mike Troyer at troyer performance. I wouldn't let anyone else tune it.

 

Mustang "tooners". Stay the hell away from them with your f150.

 

I know all about custom tuning. I have done custom tuning 6 times from 3 different companies on 3 different vehicles. My truck would not be driving without it.... Literally.