Om617 96 Jeep Cherokee build thread
#231
Evenglass, if you publish, I will buy! I may not even need it now, but I will buy that ebook! I'm getting to the finish line on my jeep, and then I will try to compile a bunch of photos and captions. Gotta say your thread was a big help in getting me to this point. Absolutely huge!
#232
With the holidays upon me I didn't want to start the pump install and then get interupted. I did not have to source the pump. What he charges for the core is insignificant, I think he said the core came from Poland. I expect it to smoke pretty bad until I upgrade the turbo, otherwise the performance should be spectacular. Mileage has never been stellar. I'm averaging 16-17mpg around town. Multiple reasons for this but mostly because I drive all my vehicle's like I stole them. A conservative driver could probably squeeze out 18-19 around town. The 300d this came out of got 22mpg. The biggest hindrance is the aerodynamics of the Jeep, you can REALLY feel the wind resistance.
#233
#234
Huh? I don't even know where to begin. How much research have you done on this subject? Any experience with German Bosch injection pumps? Do you know the relationship between injection duration and EGT? You cannot just "turn these pumps" above about 170hp without extremely high EGTs due to injection duration. If it was possible me and the entire Mercedes community would be doing it instead of shelling out good money for custom elements. This conversation could get interesting.
Last edited by Evenglass; 12-17-2015 at 04:11 PM.
#235
to keep this short. Ive done a ton of research, and ive put it to practical use. Yes injection duration and egts become the practical limit. If you look at the charts on governor behavior in the pump its easy to spot easily corrected issues (slow fuel rise, high rpm fuel reduction, and yes maximum fuel delivery). If you want to go crazy enjoy your pump i didnt come here to argue with you. I was a part of the mercedes community for a long time. Built a turbo 616 and like i said prepared a pretty nasty (and safe) 617 to go in a toyota pickup. In the end the 616 was sacrificed to find what we felt was the safe amount of fuel we could run through the 617. that was 4 years ago.
Last edited by Josh Haynes; 12-17-2015 at 04:16 PM.
#236
to keep this short. Ive done a ton of research, and ive put it to practical use. Yes injection duration and egts become the practical limit. If you look at the charts on governor behavior in the pump its easy to spot easily corrected issues (slow fuel rise, high rpm fuel reduction, and yes maximum fuel delivery). If you want to go crazy enjoy your pump i didnt come here to argue with you. I was a part of the mercedes community for a long time. Built a turbo 616 and like i said prepared a pretty nasty (and safe) 617 to go in a toyota pickup. In the end the 616 was sacrificed to find what we felt was the safe amount of fuel we could run through the 617. that was 4 years ago.
#237
If it helps, the "dont modify your engine" thread in peachparts performance forum was mostly my fault. WARNING, DANGER everyone read this! - PeachParts Mercedes ShopForum we were finally doing **** that was pushing these engines far enough that the mods thought everyone needed a warning.
Hey! I know that guy, i was working with him. he went by om616 in the forum . or was that the guy in michigan that builds pumps.. i dont remember.
Hey! I know that guy, i was working with him. he went by om616 in the forum . or was that the guy in michigan that builds pumps.. i dont remember.
#239
If it helps, the "dont modify your engine" thread in peachparts performance forum was mostly my fault. WARNING, DANGER everyone read this! - PeachParts Mercedes ShopForum we were finally doing **** that was pushing these engines far enough that the mods thought everyone needed a warning.
Hey! I know that guy, i was working with him. he went by om616 in the forum . or was that the guy in michigan that builds pumps.. i dont remember.
Hey! I know that guy, i was working with him. he went by om616 in the forum . or was that the guy in michigan that builds pumps.. i dont remember.