2.3 Ford 500HP on a dual plug head

[onesillynotch]

Combo is as follows. Vehicle is a 1988 mustang notchback, T5 trans, Dynojet chassis dyno
E8 NA SJ block Hard Block filled, 2.5 Ranger crank, crower rods, CP pistons.
Early Dual plug head, Bo stage 1 port ( only BV and intake bowl work, runners are untouched) Bo 2.5 cam, upgraded springs
Custom home made intake manifold, 60mm TB
Custom Boport header. 1.25 EL thru ought to a t25 flange
EFR 7163 Turbo, IWG, T25 flange.
stock fuel rail, stock regulator, stock fuel lines, 1600cc injectors, 255HP pump hotwired
PimpXS stand alone. Sequential fuel, stock Mopar 4cly neon coil packs (2). Ranger CAM sync, OEM DIS crank sensor
Tread stone FMIC
Large oil cooler w/ thermostatic plate, as peace of mind for lack of coolant in block
3.5" to 3" exhaust out to the tailpipe with Borla muffler. Car is very quiet. i have a manual cutout, that i didn't open on the dyno
E85 fuel, 31#s of boost.

Combo made 501hp and 554 FT TQ on 31#s of boost trailing down a few PSI up top. I walked in with 385HP and didn't raise the peak boost and with cam and spark timing i picked up the rest. Cam is a hefty 8 deg retard, and i just kind of stopped there and didn't retard it anymore. I can make full boost @ about 2900 rpms so power is instant, i have had to turn boost down, in the lower rpms to combat compressor surge.

Car would of made decent power more with more boost but it slipped my mind my IWG rod was all the way out, turbo was only spinning 118k rpms. The compressor maps goes to about 150k. I have intentions to get boost up closer to 40. Im seeing around high 120s intake temps, on the dyno or even after multiple pulls on the street. Temps out of the turbo i have seen as high as 275deg.

Fuel pressure is dead linear as logged with boost @ 30psi. This further confirms my people upgrade fuel systems for no reason, and i will mock them Smile . Previously i have made closer to 40psi with holder fuel pressure, and this is on E85 (30% more fuel needed)

Goal is to turn the WG rod in to hold 31PSI (Pimp and EFR boost solenoid are controlling boost) and make passes, then turn it up at the track.

if you want to check out vids or pics of the car see my youtube or IG both are named "notch4u"

[Stinger]

That's certainly some big power. E85 is a wonderful thing for turbo cars.

Picking up 120hp with cam timing and ignition timing is crazy. Where was cam timing when you arrived and what was the change in ignition timing you made (came in at "x" total, left at "y" total)?

What type of dyno?

[onesillynotch]

Sept 8, 2021 14:33:38 GMT -5 Stinger said:

That's certainly some big power. E85 is a wonderful thing for turbo cars.

Picking up 120hp with cam timing and ignition timing is crazy. Where was cam timing when you arrived and what was the change in ignition timing you made (came in at "x" total, left at "y" total)?

What type of dyno?

Came in with 2R cam, left with 9R. Spark started at 8 , left at 18. As for the cam over the winter ill be measuring it and checking all the centerlines.

Ill be honest i stopped with both. possible more to be had. Also possible with maintained the current boost level and not trailing off

dyno was a dynojet.

[Stinger]

Thanks for the info, that 10 degrees of ignition timing is likely where a big part of the power came from.

Interesting you retarded the cam that far. The last 2.5 I had here was advanced 8 degrees but I did that to bring the power peak down to 6500 so it worked well for the customer's driving style. Straight up it wanted to peak a bit north of 7 grand. Where was your power peak?

Crazy that the fuel system supported this much power on E85. The hotwired pump is certainly a big part of this. I've got to imagine you're near the max of what the pump can handle.

[onesillynotch]

Sept 17, 2021 0:08:01 GMT -5 Stinger said:

Thanks for the info, that 10 degrees of ignition timing is likely where a big part of the power came from.

Interesting you retarded the cam that far. The last 2.5 I had here was advanced 8 degrees but I did that to bring the power peak down to 6500 so it worked well for the customer's driving style. Straight up it wanted to peak a bit north of 7 grand. Where was your power peak?

Crazy that the fuel system supported this much power on E85. The hotwired pump is certainly a big part of this. I've got to imagine you're near the max of what the pump can handle.

fuel pump is holding 1:1 pressure to low 30s as logged. once i crank the boost ill let it be known if i need to get the dust off my 450 turbine pump and install it

[Stinger]

Right on.

One thing I find interesting is that the timing ended up about the same place it would be with a single plug head. The info that last 5 years or so has been that the dual plug stuff wanted much less timing.

[onesillynotch]

Sept 17, 2021 0:08:01 GMT -5 Stinger said:

Thanks for the info, that 10 degrees of ignition timing is likely where a big part of the power came from.

Interesting you retarded the cam that far. The last 2.5 I had here was advanced 8 degrees but I did that to bring the power peak down to 6500 so it worked well for the customer's driving style. Straight up it wanted to peak a bit north of 7 grand. Where was your power peak?

Crazy that the fuel system supported this much power on E85. The hotwired pump is certainly a big part of this. I've got to imagine you're near the max of what the pump can handle.

update to fuel pressure, its only 1:1 @ 31psi till 4000, then drops to 52psi on the way to 6500 rpms. injectors are on edge now for making up for the fuel. Updating fuel pump!

[Stinger]

That sounds more like what would be expected.

[onesillynotch]

another fuel update.

update #1 put in a hellcat fuel pump on the stock 5/16 feed line. appears to hold pressure all the way to the top end. Speaking of the top end, i picked up about 700 rpms after a few mods and i think it might be tributed to the increase of fuel pressure and being able to atomize now considering prior to this we were only 20#s ish of FP at the tip of the injector at #31s of boost above 4k rpms.

update #2. put in a 8am feed line. put in a sn95 fuel pump hanger (3/8" feed hanger), areomotive fuel filter . All ford to AN adapters. PTFE lines for E85. this is more than anything i will ever throw at this car

still running the 1/4" return line and stock FPR with zero issues as i am controlling the Hellcat pump with PWM control, via the PIMP. have it @ about 25% at idle prior to the 8an line. will check to see if it will go lower in the next few days.

[Stinger]

Nice! Can't complain about the RPM increase now.

[onesillynotch]

Update

Car went 11.027@128.5 w/ 1.52. This was back on the stock intake as my sheet metal one developed a crack. lost 800-1000 rpms going back to the stock unported dual plug intake and stock 50mm TB. Boost was 33 tapering down to 29-30 shifting 100% by ear

hoping to get one more day @ track with a working shift light and more boost. i have alot more in the turbo, just reworking on holding the boost.

[Stinger]

That MPH is rolling.