Spent five hours at the hobby shop today doing an install/removal. Cruise control was removed completely, throttle cable replaced with new OEM non cruise control cable. I am amazed at the space created in the absence of the assembly. Alternator belt was much easier to service.

New Goodyear Gatorbacks were installed. Performed this while everything was off.

From underneath (car on lift) I removed the five bolts securing the upper to lower sections. Lowered the vehicle and removed the upper section. Raised vehicle and removed the vacuum box & lower bolts for the lower manifold section. With everything off I began transferring the sensors over to the Fierro port & polished OEM IM. Broke two T20 bits attempting to remove the IAC and TPS. This was working them back and forth mind you, I was not applying sudden force. Only one bolt head though. The TPS was reused, however the IAC was saved. Since I wanted to utilize just a throttle stop for idle control I RTVed three pennies into the IAC port on the MP TB. Using a IAC from a Stratus 2.4 I compressed the plunger completely and ground approximately 1.5mm of material off the pintle so it would seat completely.

At this point I should have test fitted the SS bolts that I purchased with the Symtech PTFE spacer for clearance. I found out the two inner bolts will bottom out against the runners due to length. I had to cut approximately 1/4" off two bolts and run a die to clean the threads. I did not use two gaskets to sandwich the PTFE spacer - only Mopar Gasket spray to prep the surfaces and gasket. I also sprayed the throttle body gasket for good measure.

With everything buttoned up I fired her up and immediately had to adjust the throttle stop to keep her going. I played with the throttle stop a bit to find a 1K idle. On the initial drive I immediately noticed it to be more raucous. The difference in response made me laugh. After a short drive I popped the hood and touched the upper IM - not bad!

The MegaView confirmed lower IAT readings. With so much more airflow I was topping out my EGO correction frequently and will need to increase fuel. The butt dyno made me smile.

---

2012 2500HD LML

___________________________________________



http://www.2gnt.com/quote_db.php?id=278

Outside of Corona: "That sucks, peace out..." (jamie walks away)... "Sweeet, what we doin?" -Zac
Tim's garage (prior to motor install): "Im gonna smoke real quick, that way if you fuck up I am already nicotined up" -Tim

Fuck yeah. That Fierro IM has been sitting around for over 4 years too - I kick myself sometimes for just stockpiling parts.

It was well worth the time and money. Without a lift however, it would have been a great pain in the ass to swap the intake manifold.

---

2012 2500HD LML

First off, good luck with those Goodyear Gatorback belts, every time i try those, they shred into pieces within a week. One time it shredded the same day i bought it. Anyway, I'm curious to see some pics of the Fierro IM.

Banned

Outwardly the IM looks no different. The inside has been cleaned up, injector humps shaved, bored to 60mm, runners ported.

As for Gatorbacks what are you doing wrong? The set I just took off were on for about 90K miles. Everyone I know running them has had awesome results.

---

2012 2500HD LML

Captain Caveman

96 RS Turbo 11.414 @ 119.62 MSNS, Crower 2 NA cams, BW366, 10.5 comp, UDP, 60mm TB, W/A intercooler, 3.55 tranny 567.9whp 430tq
97 RS NA 13.188 @ 103.87 MSnS powered 12.5 comp, Crower 3's and 219.4whp with 175tq
98 RS DD 12.5 comp on stock ECU, LTH, Crower 2's, Koni, GC, Hypercoil, DG hats
99 OZ 5sp Stocker 15.856 @ 85.97
99 GS stocker auto 17.7@77mph!

wiki home page:http://www.2gnt.com/index.php?d=bullettdsm

---

2012 2500HD LML

Does removing the IAC cause any codes? Curious, since that also plays into the code recieved by the EGR if it would help to eliminate that code as well...

Built block.
Refinished head.
Tuned suspension.
TURBO.

it would throw a code. But I have not been OBD II compliant for many years.

---

2012 2500HD LML

I wanna see some pics of this. Interested to see how it all fit together.

I am not compliant myself... I just hate that light stairing me in the face...

It sucks to put so much work into a car and have someone that doesn't really know about the process see that light. It just looks 'bad', you know? They immediately think something is wrong, or you didn't do something right.

Built block.
Refinished head.
Tuned suspension.
TURBO.

Captain Caveman

96 RS Turbo 11.414 @ 119.62 MSNS, Crower 2 NA cams, BW366, 10.5 comp, UDP, 60mm TB, W/A intercooler, 3.55 tranny 567.9whp 430tq
97 RS NA 13.188 @ 103.87 MSnS powered 12.5 comp, Crower 3's and 219.4whp with 175tq
98 RS DD 12.5 comp on stock ECU, LTH, Crower 2's, Koni, GC, Hypercoil, DG hats
99 OZ 5sp Stocker 15.856 @ 85.97
99 GS stocker auto 17.7@77mph!

wiki home page:http://www.2gnt.com/index.php?d=bullettdsm

Pics FTW!