1986 Ford LTD/L92/BW S-480/Holley EFI Street Car
#142
Last season with the car I learned a lot and had a good time with it. With the help of 3 Window on here I was able to get my tune a lot better than it was and get my boost controller working really well. Unfortunately on the last pass of the season I hurt it. On the release of the t-brake it spun and I peddled it once to regain traction. It hooked and went a 6.5 @ 115 w/ a max boost of around 17 iirc. I got the motor out this week and found #5 rod just barely bent (I was on pump gas no meth). I bought a set of rods and pistons from Steve Morris and will be dropping it off at the machine shop today. The new pistons will drop my c/r from 10:7 to 9:1 respectively. I'm hopping to turn up the S-480 now with the decrease in compression to get the turbo in its more efficient zone. I'm going to go over the car while it's down and try to pull some more weight out and clean things up a bit.
#143
TECH Resident
That sucks. At least it was the last pass of the season. Thanks for updating the thread. Steve weighed his LX recently. I believe it's 3050 w/o driver currently. He still hasn't done the manual window conversion. He weighed the pieces and it was a very small difference. Good luck on the diet!
#144
I've been SBE all this time and it's done well so I won't complain. I think it will be good to get some compression out and have some good components in the bottom end.
From what I've read it didn't look like there'd be much of a weight difference from manual to power windows (on the Mustangs anyway). I'd like to get down to that weight, but I don't want it to feel like a tin can.
I built another one of these cars a few months ago. It's a white 85 LTD just like this one, but I used an LS-1 and a 4L60 on the stock computer. It's been a good DD so far. I even drove it down to Daytona for the Turkey rod run and got 21.8 mpg.
From what I've read it didn't look like there'd be much of a weight difference from manual to power windows (on the Mustangs anyway). I'd like to get down to that weight, but I don't want it to feel like a tin can.
I built another one of these cars a few months ago. It's a white 85 LTD just like this one, but I used an LS-1 and a 4L60 on the stock computer. It's been a good DD so far. I even drove it down to Daytona for the Turkey rod run and got 21.8 mpg.
Last edited by 408GT; 01-08-2018 at 01:15 PM. Reason: spelling error
#145
TECH Resident
Awesome DD! Steve's isn't a tin can by any stretch. Just has a sbf and T5, and lots of small weight removal. I would rather build more HP than strip a driver down too much. Takes all the fun out of driving it quickly. Look forward to your results next season.
#147
Last season with the car I learned a lot and had a good time with it. With the help of 3 Window on here I was able to get my tune a lot better than it was and get my boost controller working really well. Unfortunately on the last pass of the season I hurt it. On the release of the t-brake it spun and I peddled it once to regain traction. It hooked and went a 6.5 @ 115 w/ a max boost of around 17 iirc. I got the motor out this week and found #5 rod just barely bent (I was on pump gas no meth). I bought a set of rods and pistons from Steve Morris and will be dropping it off at the machine shop today. The new pistons will drop my c/r from 10:7 to 9:1 respectively. I'm hopping to turn up the S-480 now with the decrease in compression to get the turbo in its more efficient zone. I'm going to go over the car while it's down and try to pull some more weight out and clean things up a bit.
#155
I drove the car 1 hr out to the track last Friday night and was able to get 3 passes on the car. First pass I was having to start over with my boost controller and just trying to get some data, so I just populated the table w/ 20% DC to see what it would make. The car left good and made a good clean pass of 9.8 @ 136 w/ a 1.4x 60'. It made about 3psi on the brake and ramped straight to 14 psi in 1.5 sec and leveled off at 9psi. The second pass I doubled the DC and it made 18 psi, but it left so hard that I hit a safety cut right out of the hole. The last pass I fixed the safety cut issue and turned it up a little more, but it spun out of the hole and I had to peddle it once. The car ended up weighing 3455 w/ me (170).
#158
8 Second Club
iTrader: (4)
Sounds like you still have a little room to turn it up... but at that weight, I think the mechanical advantage will help the 60’-330’ for sure. If you’re combo is setup to take advantage of more RPM and can plant the tires... it should be faster all around. If your top end isn’t setup to take advantage of the RPM, the lower gear might keep you in your power band happy place. With an OD trans, might look into even more gear. I’d shoot for 7kish thru the traps in the ¼.
#159
Sounds like you still have a little room to turn it up... but at that weight, I think the mechanical advantage will help the 60’-330’ for sure. If you’re combo is setup to take advantage of more RPM and can plant the tires... it should be faster all around. If your top end isn’t setup to take advantage of the RPM, the lower gear might keep you in your power band happy place. With an OD trans, might look into even more gear. I’d shoot for 7kish thru the traps in the ¼.