First 5.7L into the 400s

[Meister]

Thanks to the fine workmanship of FastMatt at Dynamic Racing (DR), and a well-designed new cam, my DR stage II heads-equipped 300C just dyno'd at 400 ft lbs of torque, 383 hp, the first normally-aspirated 5.7L LX engine to ever break the 400 barrier. This from a car that retains near-perfect driveability.

Matt replaced my existing Comp 260 cam with a Littleboy from Frank Racing (FR), removed MDS, and replaced my existing Mopar headers with the first set of custom Kooks port-matched headers ever built for the 5.7l LX Hemi. I had worked directly with Kooks for several months and provided them the template required for them to get these port-matched headers perfect.

I also had ProTorque's 3800-stall torque converter installed while in Matt's shop. This great device should make the car several tenths quicker at the track, but, reportedly, results in a power loss on the dyno. So it's possible that horsepower is, in reality, at or above the 400 mark as well, assuming a stock TC.

I'll likely debut her at the track in her new form Wednesday night. Looks like I'll be doing so in my street tires, as I've worn my BFG DRs down to the steel mesh on both tires, and my new wheel/tire setup is not yet completed, so she'll be .3 shy of where she would be with an optimum set of racing wheels and tires. Solid 12s at 110 or so is my guesstimate for how she'll fare.

Thanks again to all involved in bringing this long-planned next-phase upgrade to fruition. My sweet C is definitely at a whole new level of performance.

[STAGE 3 R/T]

wow CONGRATS!

[gremlinsteve]

i have something i want you to try the next time you dyno. kinda like a simple before and after test if you interested. i think you might be suprised and amazed by the results.

when are you planning a return trip t the dyno?

stve

[MomsR/T]

I think your MPH will be well ahead of that 110 number............i think more like 113-114

[Drew's RT]

Nice work! Is that at the rear wheel or engine?

[CoolVanilla]

Here is the original thread in case ya missed it: Dynoed Meister's car today with a few new mods

Again, hats off Jim. You're the master my friend. There are none finer.

[JonzMgnm]

Holy crap, Jim...nice numbers. Is that TQ converter a 3800rpm stall or a 2800rpm?

Keep raising the bar for the 5.7!

[Fast56k]

I think the stall converter will make a huge difference in Meister's 1/4 time. No bog from a start. It is rev up and slam down the road. He did like a 35 ft burnout last night.

C.

Silver 06 CSRT-8

[Carfinish]

Holy crap, Jim...nice numbers. Is that TQ converter a 3800rpm stall or a 2800rpm?

Keep raing the bar for the 5.7!

Congrats Jim .......that should definitely be 2800...

[ZMagnum]

Congrats Jim. That's amazing. Looking forward to seeing you twice in March.

[LowGo]

Nice to see what it's capable to do with the 5.7L. I'll be looking forward to reading about your track results.

[chryslerking]

Good for you jim all your work just paid off.I have to say iam proud as hell of you guys.All of you

[Reppr]

Did I read that right? You had MDS disabled? No worries, just curious.

[DeafCharger]

Awesome numbers! You made us 5.7L proud!

[MadCharger]

How does the car run in the street? Have you held it through the gears, to be sure you don't get the dredded tranny cut out?? Seems the cars making big power are having tranny issues in the higher rpms....