Abryan1019 Posted September 18, 2021 Share Posted September 18, 2021 I’m new on the forum, and an by no means a subject matter expert on Mack. My knowledge on Mack’s is minimal. I currently am running an 03 ch613 with a factory rated 427 E7. This particular truck is primarily used for pulling an end dump, but does on frequent occasions haul Heavy equipment. The plan is to upgrade to stage 3 injectors from Rochester diesel. My question is, is there a better/cheaper option as far as a turbo upgrade to compliment these injectors. I’ve been told that swapping a Detroit turbo can be done and that they perform well. Is this a viable option as far as bang for buck/ease of installation. Any insight on this would be greatly appreciated. Quote Link to comment https://www.bigmacktrucks.com/topic/68193-e7-427-turbo-upgrades/ Share on other sites More sharing options...
brettj3876 Posted September 18, 2021 Share Posted September 18, 2021 S475 1.32A/R for about 650-700 will work perfectly with stg3. Look into the blixxton programmer from rochester diesel. We run one on a 99 460. Everything else is stock on it and it pulls damn good. Check out this video. A 93 we just put a mechanical P7100 on with some work done to it. Not even close to stock https://youtube.com/shorts/guoqVaulZVk?feature=share 1 Quote Link to comment https://www.bigmacktrucks.com/topic/68193-e7-427-turbo-upgrades/#findComment-480130 Share on other sites More sharing options...
Abryan1019 Posted September 18, 2021 Author Share Posted September 18, 2021 Nice, so foregoing the injectors and turbo for the box is a safe and reliable option? I’ve seen them before, just don’t ever hear much Feed back on them. Quote Link to comment https://www.bigmacktrucks.com/topic/68193-e7-427-turbo-upgrades/#findComment-480131 Share on other sites More sharing options...
brettj3876 Posted September 18, 2021 Share Posted September 18, 2021 2 hours ago, Abryan1019 said: Nice, so foregoing the injectors and turbo for the box is a safe and reliable option? I’ve seen them before, just don’t ever hear much Feed back on them. Yea on the 99 we run one. Besides that it's stock otherwise. Definitely noticed a nice hp gain and about 0.5-0.6 mpg increase also. Imo do that 1st and if your not satisfied then go injectors/ turbo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/68193-e7-427-turbo-upgrades/#findComment-480136 Share on other sites More sharing options...
Dirtymilkman Posted September 19, 2021 Share Posted September 19, 2021 Stage 3 injectors might be a little hot for you. They really really stink at idle. Burn your eyes bad. Blixton with stage 2 injectors and a healthier turbo will get you 500+ hp. The 427's have a great torque curve. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/68193-e7-427-turbo-upgrades/#findComment-480139 Share on other sites More sharing options...
Abryan1019 Posted September 19, 2021 Author Share Posted September 19, 2021 I’ve had people me ruin putting 460 program in. I’ve gathered over time though reading on this forum and a few others that the 427 seems to pull better. Im sure due to a flatter torque curve and build its lower in the rpm Range. Not trying to kill my engine, I’m gonna do rod and mains when I got with whatever I decide as added peace of mind. Imo more power never hurt anyone, as long as its used wisely. Quote Link to comment https://www.bigmacktrucks.com/topic/68193-e7-427-turbo-upgrades/#findComment-480143 Share on other sites More sharing options...
brettj3876 Posted September 20, 2021 Share Posted September 20, 2021 The 427 etech has a flatter tq curve. The 460s are more rev happy. The 460s pull the best at 1600-1850 where the 427s like 1400-1600/1650 Quote Link to comment https://www.bigmacktrucks.com/topic/68193-e7-427-turbo-upgrades/#findComment-480187 Share on other sites More sharing options...
Abryan1019 Posted September 21, 2021 Author Share Posted September 21, 2021 Ya I’ve noticed, it pulls good down low. Usually can take off in a higher gear, but it falls on its face north of 1700 it feels like. Noticed it today movin a 320 cat ex. Im gonna do all the bearings in the lower end, before I throw more power too it. Quote Link to comment https://www.bigmacktrucks.com/topic/68193-e7-427-turbo-upgrades/#findComment-480248 Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.