Stock Fuel Rails, why they don’t keep up

[Unholy707]

it’s a spacer with a larger cooling brick I believe

 

[RGPIII]

it’s a spacer with a larger cooling brick I believe

Correct, the spacer between the compressor and lid is for the units with the larger cooling brick.

 

[Hickster]

That's amazen. It tuuk, so called Dodge, 3 timez and an engineer 2 fix mine. Oh, 3 fuelpumps X 2, cat pervurterz, gas gets, bults, ects,,. A toltal mess at a Dodge Deelershitz. Thanx gosh Dave waz dare, mechanic. Dave is a Demon, Viper, and HC mechanic dare fur 8 ears. At da dealership. Suncoast Dodge in Seminole, Fl.

 

[16GoManGoHC2]

Dyno pulls the other night, 1078 at 17.5 degrees of timing and 28 lbs of boost.

3 pulls, a bit more timing each pull. 15 16 and 17.5 degrees max timing. Settled on the 16 degree 1075 hp tune as knock sensors showed a very quiet happy engine with that timing map even with 130 degree MAT.

 

[Speedy!]

15HP increase from 15 to 16 deg, but only 3.5 from 16 to 17.5....was it pulling any timing for IAT?

 

[16GoManGoHC2]

15HP increase from 15 to 16 deg, but only 3.5 from 16 to 17.5....was it pulling any timing for IAT?

No, it ran clean (no timing pull for anything) and at commanded timing. I think once you get so high in boost timing does not do as much as it does in lower boost. Just a hunch from seeing this and of others getting up there in boost. It probably would have eclipsed 1100 but was down 1-1.5 lbs of boost for reasons which will be discussed at a later time. PR of 2.8 to 2.85 vs 3.00 it was hitting. It ran just a bit more boost then the 3.0 was making turning much faster. Remember my target was to make the same boost as the 3.0 did but at slower blower speeds as I can’t put any more to the ground then I was already making, it’s getting crazy scary. The 3.0 made almost the same exact numbers at 19.5 d degrees of timing, see dyno sheet from Sept last year.

 

[Speedy!]

Well, that means your tune is dialed in perfectly.

 

[16GoManGoHC2]

Here’s true boost measured in the intake runner, about 29 psi. My boy hasn’t been in the cat since about 200 horsepower ago. His legs were literally shaking after the hit. The squealing is the tires begging for mercy 😆

Look right over the gauge at sensed MAP, minus baro is boost, 42.8-14.4 about 29 psi.

 

[16GoManGoHC2]

Well, that means your tune is dialed in perfectly.

YES it is, MUCH THANKS to @jonx96 for all his tuning help all these years.
Also @Hatermkr for his great hand me down parts deals. His rods are still going strong, Whipple 112 TB, Thitek head porting hook up, and I’m sure a few other goodies.
👍🏻👍🏻

 

[jonx96]

23 degrees let’s cross that 1100 mark 😉😉😉

 

[BULL]

23 degrees let’s cross that 1100 mark 😉😉😉

"Just one more lb of boost"

 

[16GoManGoHC2]

23 degrees let’s cross that 1100 mark 😉😉😉

Don’t know why but It’s never been a timing whore 🤷🏻‍♂️

"Just one more lb of boost"

It had such 2 weeks prior, had a “little” issue that’s being resolved atm.

 

[jonx96]

"Just one more lb of boost"

Been there 🤣

 

[fubar569]

No more boost.

Boost is bad for you.

Mmmmkay.

 

[Hickster]

Cause they are shit geezes.

 

[16GoManGoHC2]

15HP increase from 15 to 16 deg, but only 3.5 from 16 to 17.5....was it pulling any timing for IAT?

See timing of each pull, right at programed amount. Almost 0 miss fires, no timing pull for IAT, STKR, etc, clean pulls. MAT could have been cooler, killer chiller not keeping up with the Whipple very well.

 

[Unholy707]

Speaking of, does anyone need a set of stock fuel rails? Have some for sale

 

[Unholy707]

Buy and send off to @16GoManGoHC2 for porting so you don’t have any downtime

 

[drag racer]

P/N, year (does it have bleed valve), price?

 

[Unholy707]

No bleeder valve unfortunately, 2015. No issues, just went to redeye rails but ask @16GoManGoHC2 the stock ported ones flow great. I’ll shoot you a PM