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<blockquote data-quote="Nutty 5.0" data-source="post: 16160842" data-attributes="member: 50275"><p>Figured I should post an update. Finally installed and got to drive the setup. Followed all of VMP’s recommendations on what I should run (Thanks to those here too!):</p><p></p><p>Gen 2R with 2.4" pulley</p><p>VMP 67 twin</p><p>JLT123</p><p>13-14 GT500 (56) injectors</p><p>VMP plug and play 11-12 BAP</p><p>170F Thermostat</p><p>Triple pass fanned HX</p><p>Stock exhaust: manifolds to mufflers</p><p>GR12YS’s gapped at 28</p><p>93 Octane VMP tune</p><p></p><p>Install: Had a PITA (Catmonkey and others shared the same) getting the EGR lined up. Took advice and started tube nut and the bolts while leaving blower not fully mounted and it still had us wanting to punch babies. Second but minor issue was the EVAP valve. I bought the car with 3400 miles on it and it now has 5700. I removed the EVAP and the valve and O ring were torn. Almost looked like it was factory install issue as the one part of the plastic where it mounts to the blower was pushed in wrong and bent but not quite cracked. I took it out myself and didn’t fight it so I know I didn’t do it. Or maybe it was apart from someone before; who knows. I found a Viton O ring assortment kit at the local Advance Auto so put that on. I still ordered a new valve as I don’t like the broke/bent one. Looks to be working fine now. Overall, it wasn’t bad at all. I scanned the instructions as VMP has them on their site, but goes to a broken Dropbox link. You will use a 28mm wrench for the EGR tube nut assuming you have a 11-12 (May be same for other years). Old GR14YS plugs looked ok; got new ones for the increased boost and gapped at 28.</p><p></p><p>Loading a tune: Pretty simple and have done it plenty of times on this car in the past year. Not this time. It would go all the way through the process of loading a new tune (not returning to stock and then adding a tune), and get hung up at “Clearing DTC Codes”. I say hung up because it would flash red and green LED’s which I never saw before. Posted on the GT500 FB page and great advice: update the firmware. I haven’t had to before, and was generally told not to, but I had no choice. Take it to the laptop and it says car needs to go to Stock first before loading firmware. I saved the stock tune from the X4 (I had done this already before but figured better safe than sorry!) and fortunately went back to stock. I was worried about bricking the ECU despite having it on a charger all of the time. Taking it back to the laptop it updated the firmware which took just over 30 minutes. It had over 800+ parameters to update so I guess that’s why it needed updated. Then took the X4 and successfully loaded the tune. Car fired right up like stock and all the previous tunes.</p><p></p><p>Driving: Let car warm up after tune install. Never a hiccup; perfectly smooth idle and transitions. Quick 15 mile cruise it drives like stock and all VMP tunes I’ve had in it. Buttery smooth yet slightly more responsive with this blower. Ran some data logs for WOT but it’s hard to find space to get a Third Gear pull yet alone a fourth. It still spins in second and sort of bites but skates in 3rd (Nitto 555 G2 in stock size) so I’m hoping they can see what they need that it’s safe to beat on. I saw as much as 18* of timing and up to +2* of knock. I did run my tank down to below a quarter tank (I had fuel from October due to the crappy winter weather up here) so topped off with fresh 93 and half a bottle of Boostane Pro just to make sure I had at least a good 93 to start with. Not sure if some of the older fuel is still in and it’s picking up some knock from that. Not sure what timing I should be seeing but 12-13* (EDITED: I said 18 but actually was much lower) seems safe from I recall.</p><p></p><p>Overall: Assuming nothing concerning is found with data logs, I love the stock drivability. It feels faster, but really hard to say is it another 100+ on HP and Trq? The long gearing of these cars seems to help for traction and mask some of the power. I’m happy it’s somewhat hooking in 3rd, but was assuming I’d be blowing them off through 3rd lol. I have all stock suspension other than BMR Panhard and Panhard support. I do plan on some BMR lowers.</p></blockquote><p></p>
[QUOTE="Nutty 5.0, post: 16160842, member: 50275"] Figured I should post an update. Finally installed and got to drive the setup. Followed all of VMP’s recommendations on what I should run (Thanks to those here too!): Gen 2R with 2.4" pulley VMP 67 twin JLT123 13-14 GT500 (56) injectors VMP plug and play 11-12 BAP 170F Thermostat Triple pass fanned HX Stock exhaust: manifolds to mufflers GR12YS’s gapped at 28 93 Octane VMP tune Install: Had a PITA (Catmonkey and others shared the same) getting the EGR lined up. Took advice and started tube nut and the bolts while leaving blower not fully mounted and it still had us wanting to punch babies. Second but minor issue was the EVAP valve. I bought the car with 3400 miles on it and it now has 5700. I removed the EVAP and the valve and O ring were torn. Almost looked like it was factory install issue as the one part of the plastic where it mounts to the blower was pushed in wrong and bent but not quite cracked. I took it out myself and didn’t fight it so I know I didn’t do it. Or maybe it was apart from someone before; who knows. I found a Viton O ring assortment kit at the local Advance Auto so put that on. I still ordered a new valve as I don’t like the broke/bent one. Looks to be working fine now. Overall, it wasn’t bad at all. I scanned the instructions as VMP has them on their site, but goes to a broken Dropbox link. You will use a 28mm wrench for the EGR tube nut assuming you have a 11-12 (May be same for other years). Old GR14YS plugs looked ok; got new ones for the increased boost and gapped at 28. Loading a tune: Pretty simple and have done it plenty of times on this car in the past year. Not this time. It would go all the way through the process of loading a new tune (not returning to stock and then adding a tune), and get hung up at “Clearing DTC Codes”. I say hung up because it would flash red and green LED’s which I never saw before. Posted on the GT500 FB page and great advice: update the firmware. I haven’t had to before, and was generally told not to, but I had no choice. Take it to the laptop and it says car needs to go to Stock first before loading firmware. I saved the stock tune from the X4 (I had done this already before but figured better safe than sorry!) and fortunately went back to stock. I was worried about bricking the ECU despite having it on a charger all of the time. Taking it back to the laptop it updated the firmware which took just over 30 minutes. It had over 800+ parameters to update so I guess that’s why it needed updated. Then took the X4 and successfully loaded the tune. Car fired right up like stock and all the previous tunes. Driving: Let car warm up after tune install. Never a hiccup; perfectly smooth idle and transitions. Quick 15 mile cruise it drives like stock and all VMP tunes I’ve had in it. Buttery smooth yet slightly more responsive with this blower. Ran some data logs for WOT but it’s hard to find space to get a Third Gear pull yet alone a fourth. It still spins in second and sort of bites but skates in 3rd (Nitto 555 G2 in stock size) so I’m hoping they can see what they need that it’s safe to beat on. I saw as much as 18* of timing and up to +2* of knock. I did run my tank down to below a quarter tank (I had fuel from October due to the crappy winter weather up here) so topped off with fresh 93 and half a bottle of Boostane Pro just to make sure I had at least a good 93 to start with. Not sure if some of the older fuel is still in and it’s picking up some knock from that. Not sure what timing I should be seeing but 12-13* (EDITED: I said 18 but actually was much lower) seems safe from I recall. Overall: Assuming nothing concerning is found with data logs, I love the stock drivability. It feels faster, but really hard to say is it another 100+ on HP and Trq? The long gearing of these cars seems to help for traction and mask some of the power. I’m happy it’s somewhat hooking in 3rd, but was assuming I’d be blowing them off through 3rd lol. I have all stock suspension other than BMR Panhard and Panhard support. I do plan on some BMR lowers. [/QUOTE]
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