n4longhaul
New member
I just became a member of the board but have been reading for some years.
I have a T68R turbo'ed 4.9L 68' F100 SWB. EFI/ ZF 5 speed... posi 3.25 gear rear end.
I'm tearing it back down for the 2nd time because of this game I've been playing with 20-25 psi boosts with out meth/inject. LESSON LEARNED THIS TIME!!! The motor is set up like this:
-300 decked block .060 bore
-240 head ported/ roller rockers on 7/16 studs
-ARP fasteners
-copper head gasket
-Balanced crank
-240 Rods
-Chevy 327 Forged pistons
-EFI manifold modified Throttle body
-Custom built turbo header
-50mm wastegate
-Blow-off valve
-intercooler
-Megasquirt controller
-Duraspark Dizzy w/locked down mech. advance
I have had the hardest time tuning with megasquirt but I've got it figured out now. If anyone has a similar set I would love to see their VE tables. And possibly spark tables. It's pretty much been trial and error for me with this tuning and through my own "Need for Speed" a costly one too.
The first motor... I didn't have my wastegate ported right and it spooled upwards of 27psi. (turbo creep) This was of course very impressive to say the least. At that point I have never felt a 300cid put SOOO much horsepower to the wheels. But, It did a number on #6 piston.
The second motor was basically my fault. I should have stopped my tuning adventures and put the methanol inject kit on it before pushing any further. Detonation is a Killer as they say. And it didn't help that I was running pump gas.
On my new motor build.. I would love to get my hands on a steel crank and possibly a ported EFI head.. or Alluminum head. As would every other person on this board too I'm sure.
I will be posting pics and build pics asap.
Thanks in advance for your comments.
I have really enjoyed looking at all the turbo builds and outcomes.
3" intercooler /had to notch the backside of the grill to make clearance
Had to cut the floor pan out and re-fab a sheet metal pan for the much taller zf-5 trans. Used the stock 92' gear shifter and fabbed some inner bushings to tighten up the throw.
I have the MS controller on a hinged plate for access to my fuse blocks and easy adjustment or upgrades.
This aluminum air intake y-pipe is actually for a Mitsubishi 3000GT. It matched up nice to the 300 throttle body. But, I used a 351w throttle body and had to use different rubber connectors to mate it up.
One water coolant line was stretched out more than I wanted but I used it anyways. The downpipe is actually a dodge cummins 4". I stepped it down to 3" before the muffler.
Custom made slip-spline drive shaft. The tailpipe is an 04' dodge ram 1500 stainless pipe. Was almost a perfect fit. Magnaflow muffler
The Zf was a tight fit and has to be pulled with the motor for removal. There's a cross member near the front that won't allow it to be dropped from underneath. Clutch is hydraulic with the master cylinder mounted to the firewall. Had to re-fab the clutch linkage to "push" the plunger. Instead of pull it like it was with the old mech. clutch.
I have a T68R turbo'ed 4.9L 68' F100 SWB. EFI/ ZF 5 speed... posi 3.25 gear rear end.
I'm tearing it back down for the 2nd time because of this game I've been playing with 20-25 psi boosts with out meth/inject. LESSON LEARNED THIS TIME!!! The motor is set up like this:
-300 decked block .060 bore
-240 head ported/ roller rockers on 7/16 studs
-ARP fasteners
-copper head gasket
-Balanced crank
-240 Rods
-Chevy 327 Forged pistons
-EFI manifold modified Throttle body
-Custom built turbo header
-50mm wastegate
-Blow-off valve
-intercooler
-Megasquirt controller
-Duraspark Dizzy w/locked down mech. advance
I have had the hardest time tuning with megasquirt but I've got it figured out now. If anyone has a similar set I would love to see their VE tables. And possibly spark tables. It's pretty much been trial and error for me with this tuning and through my own "Need for Speed" a costly one too.
The first motor... I didn't have my wastegate ported right and it spooled upwards of 27psi. (turbo creep) This was of course very impressive to say the least. At that point I have never felt a 300cid put SOOO much horsepower to the wheels. But, It did a number on #6 piston.
The second motor was basically my fault. I should have stopped my tuning adventures and put the methanol inject kit on it before pushing any further. Detonation is a Killer as they say. And it didn't help that I was running pump gas.
On my new motor build.. I would love to get my hands on a steel crank and possibly a ported EFI head.. or Alluminum head. As would every other person on this board too I'm sure.
I will be posting pics and build pics asap.
Thanks in advance for your comments.
I have really enjoyed looking at all the turbo builds and outcomes.
3" intercooler /had to notch the backside of the grill to make clearance
Had to cut the floor pan out and re-fab a sheet metal pan for the much taller zf-5 trans. Used the stock 92' gear shifter and fabbed some inner bushings to tighten up the throw.
I have the MS controller on a hinged plate for access to my fuse blocks and easy adjustment or upgrades.
This aluminum air intake y-pipe is actually for a Mitsubishi 3000GT. It matched up nice to the 300 throttle body. But, I used a 351w throttle body and had to use different rubber connectors to mate it up.
One water coolant line was stretched out more than I wanted but I used it anyways. The downpipe is actually a dodge cummins 4". I stepped it down to 3" before the muffler.
Custom made slip-spline drive shaft. The tailpipe is an 04' dodge ram 1500 stainless pipe. Was almost a perfect fit. Magnaflow muffler
The Zf was a tight fit and has to be pulled with the motor for removal. There's a cross member near the front that won't allow it to be dropped from underneath. Clutch is hydraulic with the master cylinder mounted to the firewall. Had to re-fab the clutch linkage to "push" the plunger. Instead of pull it like it was with the old mech. clutch.