2018 Royal Crimson F1A94 Procharged, TH400 Drag Project

[turnswrench]

great numbers. You guys log boost?

Yes on my ngauge, peak of ~25-26

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[SolarFlare]

Spicy!

 

[80FoxCoupe]

Yes on my ngauge, peak of ~25-26

Rippin!!!!!!!

 

[turnswrench]

Need to figure out this hobbs switch or a replacement for it, like an RPM switch or something. It doesn't appear to be reliable enough for me. Thoughts?

 

[Jay-rod427]

Thanks for waiting, it was a 13 hour day at work for me catching up from being off yesterday. Let's get to it!

All pulls were done in 6th gear vs 7th (1:1) to reduce the impact on the trans.

After the car was loaded up, I contacted Rob and PBD letting him know we where ready. He gave the green light for a 6th gear pull, 2500 - 6000 on the existing loaded tune. The car impressed me right out of the gate, making good power

The second pull was 6th gear 2500 - 7500.

Tune revision. Third pull was 6th gear 2500 - 8000.

Started to see a big break up at 7400 - 7600 rpm elapsing .5 secs. We suspected spark blow out. Ran another pull to see.

Tune revision. 4th pull, 6th gear 2500 - 8000.

After confirming the break up, we changed out to new plugs gapped at 0.018

After the plug change, we had an aborted run due to bad misfire and break up. I pulled the plugs to see if they all fired. Put it back together. Ran again. Aborted again, same issue. Keep in mind we're trying to solve the 7400 - 7600 dip in the graph. After the second aborted run, I pulled all the coils and inspected the pins. Found two with slightly bent pins. I have the 15-17 MSD 2 step on there which requires you to remove the pin alignment pieces making it easy to bend the pins. That's what happened. Fixed the pins and tried again.

7th run, 6th gear 2500 - 8000.

The dip wasn't fixed, but the bad break up from the 5th and 6th run was solved. I received a tune revision from PBD, but I didn't load it and instead reviewed the logs myself and found the fuel pressure was dropping 20 psi between 7400 and 7600. I let Rob know and we decided to direct wire the fuel pumps and remove the hobbs switch.

Run 8. 6th gear, 2500 - 8000. Dip was solved.

Tune revision titled "X" for final. 6th gear, 2500 - 8000.

SAE final:

STD final:

There was a lot of down time waiting on tune revisions. The plug change and investigation took forever. It ended up being on the dyno from 9am until 2:30p. At one point we put on the afr wideband on the tailpipe but it came loose fell on the dyno drum and shot out the back. That was exciting.

I'm very happy with 1030+whp (corrected) on a completely factory fresh, unopened engine and trans. I think it'll have just enough to get into the high to mid 8's if I catch a lucky day.

Thanks for being patient with me. Thanks for the support.

Have a watch if you'd like:

Hells ya! Good thing you can log fuel pressure eh?;)

 

[turnswrench]

Hells ya! Good thing you can log fuel pressure eh?;)

Absolutely man! Thank you! Saved the day

 

[Jay-rod427]

What's with the bobble around 4,300 every time?

Also over 400 ft lbs at 3,000 rpm and clowns say centri's don't make any torque..... bish please.

 

[turnswrench]

What's with the bobble around 4,300 every time?

Also over 400 ft lbs at 3,000 rpm and clowns say centri's don't make any torque..... bish please.

We think it's the converter.

 

[Jay-rod427]

We think it's the converter.

Gotcha. Makes sense when it locks up.

 

[ahl395]

Sweet results. Worth the wait! Awesome setup and once you put a built motor in that F1A has plenty of room left in it.

 

[bluebeastsrt]

Looking forward to this bad bitches maiden pass at the new power level.

 

[olaosunt]

Yes on my ngauge, peak of ~25-26

Great write up again and congratulations.
Do you think the Ngauge is accurate ?

I know boost is “just a measure of restriction” as the experts on hear say but seems like a lot . Wonder if you would make as much power with less boost (and may be less heat ) but you know I am no expert .

It just seems I have seen similar numbers on the Gen 3 coyote with less boost (typically with the whipple )

 

[80FoxCoupe]

Great write up again and congratulations.
Do you think the Ngauge is accurate ?

I know boost is “just a measure of restriction” as the experts on hear say but seems like a lot . Wonder if you would make as much power with less boost (and may be less heat ) but you know I am no expert .

It just seems I have seen similar numbers on the Gen 3 coyote with less boost (typically with the whipple )

Apples to oranges

 

[olaosunt]

Always thought “boost was boost “.... but I know I am about to get schooled .... again .
Lol

 

[Jay-rod427]

Great write up again and congratulations.
Do you think the Ngauge is accurate ?

I know boost is “just a measure of restriction” as the experts on hear say but seems like a lot . Wonder if you would make as much power with less boost (and may be less heat ) but you know I am no expert .

It just seems I have seen similar numbers on the Gen 3 coyote with less boost (typically with the whipple )

Show me whipples making 1,000+ to the ground on a stone stock gen 3.

boost box setup correctly is extremely accurate. @turnswrench compare fuel pressure to boost to verify. 1:1 regulator they should match above base.

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