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May we get an update for 2026 @80FoxCoupe, I am sure everyone would appreciate it. Oh, by the way, which valve springs did you go with? Did the PAC1234x's do well for you in the past?

I have thought about that as well. From my research, it seems like cams would need to be changed as well as followers for the 5.2 to keep the valve train in check. If I go with a predator head I believe they already have better valves (still have to validate that). I do have a gen3 5.2L...

Well, long story short, I change some phasers and had the 2nd tensioner fail on me while priming the engine resulting in the driver cams go 90* out of sync and valves kisses the pistons. Heads are stock 53k miles Gen 2's with newly added PAC 1234x valve springs and I did a valve lapping job...

I had a smaller 3.10" pulley as well, but decided to leave with this setup for now. Currently with the twin 274's (450lph) and FIC1440's I am at 76% duty cycle. I am sure I can push it more but my tuner said "to make him happy" I should add a third pump. So I'll do that after I add on other...

Wow! You have a 4-digit machine waiting to be broken in. Nice setup! Stock heads and cams?

I hated my D1X upgrade for a year straight. Thought it was a blower limitation issue but one day I looked at my Kook cats and realized I had only the HO units, not the HO green! The regular HO's are only for NA builds, zero boost. Well... I ended up removing them and there's a SIZEABLE...

3.40" with a 6.500" harmonic, basically max blower RPM @ 8200.

Hi all, I finally got the car dynoed with my Procharged D1x RPG 5.2L build and it was pretty impressive. Made 1012/671 STD or 977/648 SAE Here's a quick 3rd gear pull which just blew the tires off (so added for sound) and a full 4th gear.

When I had my P1X I made 724w on 11psi and 92+booster. I want to say this was with a 3.6" and a stock harmonic balancer (HO kit with a stage II IC) Car had 2018+ Intake manifold and Kook long tubes with cats.

Hi all, Like some I am building a fun ~1000w (solid 950w) street/drag car. Car started life as a P1X pump gas machine with headers and little mods here and there, and as time has progressed I installed a built T56 Magnum XL from American Powertrain, went to a D1x, and added a fuel system for...

Thank you sir. Have a photo?

Looking into a crank support but past posts stay they all require the removal of the front sway bar. Has there been any improvements in this area, in newer designs or aftermarket sway bars? Thanks

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Nice to see another D1X car! Innovators West balancer 6.570" (stock) not the 8" --- Sea-level: 4.0" w/filter netted 12-13psi (off was 15psi) 3.8" w/filter netted 15psi Higher elevation (2400-2500ft): 3.8" w/filter was ~12psi...

Oh... the price is very tempting for their 1/2 gen Coyotes. Thanks, I'll look into them. I'll be on stock cams as well. Much appreciated.

Anyone running the Comp Cams beehive valve springs - 0.550 max lift version (Comp Cams 26113cy-KIT) or are the PAC still the fan favorite? Has anyone used the Comp Cams Hi-Tech timing chains - primary and secondary, or the stock GT350 chain? I was talking with LM Engines since they have a kit...

I'm confident with added time in the seat, suspension work (I just bought some rear adjustable after this event) and good air, it'll come.

Neither am I. I was on Nitto 555R2's - 305/45/17's; due to my TB issues I revved out to 7200-7500 in 1-3rd @ around 12-13psi peak, 4th did see 15-16psi probably 8k rpms. Boss was on M/T's (28") I believe. Either way, no bias ply's

Yep! That was my best. First time out so I knew I wasn't going to break the internet. Next time it'll be better for sure. Only was able to net a 2.1-60ft too (played with tire pressure and LC rpms). Went with a group, my buddies 900+ TT Hellion Boss did the best of 11.0@141. Regardless of your...