Em6-300l Hp Increase

[genster]

hey guys, ive got an EM6-300L and was wondering if putting a 350 turbo on it and turning the pump will give me more power. i am sure it would, but i wanted to ask since it is a low revving (1700 rpm) engine and i wanted to make sure it would work. i have the t2070 behind it and just need a little more power and acceleration.

[Lmackattack]

you can have the pump converted over to a 2100 RPM pump but it will eat more fuel. see what your boost psi is right now if its the same or slightly higher after pump work you will be fine with the stock turbo. I have driven a few trucks that were switched from 1700 - 2100 Max RPM

Trent

[genster]

so is there a reason mack made the 1750 rpm engines?? are the 300L's built any different than the regular 300's? i think it would run great if it would wind to 2100. i'll have to get a boost gauge, and a pyrometer for it....ive got a pyro gauge but no pyro or boost gauge. anyone know where to get them reasonably priced?? thanks all!

[bobo]

hey any parts jobber will sell the gauges you need. I changed over all my gauges to stewart warner, they were 50-75$ at summet racing.

[bulldoggin']

Pyro is a must when playing with the juice!!

[Lmackattack]

from what I hear the low RPM engines were an attempt to get better MPG. the whole power band was lowered a few hundreed RPM. I see alot of these trucks with 2060 2070 2080 transmissions.

I belive the internals of both the low and normal RPM engines are the same. If anything mechanical and pump timing and possibly the cam may be a little diffrent?? Regardless to get 2100 RPM you simply have the pump reworked to a standard maxidyne spec. you will still have plenty good low RPM torqe and have about a 10 MPH faster top end. the only down side when the pump is reworked for more RPMS and normal torqe range is that the gearing of the truck will now put the RPMs a little low for pulling in top gear at 55MPH it will sometimes feel that its lugging when at 1400RPM. IMO the normal RPM Maxidynes seam to like 1800 for highway cruising.

Trent

[fjh]

from what I hear the low RPM engines were an attempt to get better MPG. the whole power band was lowered a few hundreed RPM. I see alot of these trucks with 2060 2070 2080 transmissions.

I belive the internals of both the low and normal RPM engines are the same. If anything mechanical and pump timing and possibly the cam may be a little diffrent?? Regardless to get 2100 RPM you simply have the pump reworked to a standard maxidyne spec. you will still have plenty good low RPM torqe and have about a 10 MPH faster top end. the only down side when the pump is reworked for more RPMS and normal torqe range is that the gearing of the truck will now put the RPMs a little low for pulling in top gear at 55MPH it will sometimes feel that its lugging when at 1400RPM. IMO the normal RPM Maxidynes seam to like 1800 for highway cruising.

Trent

Trent the governer levers inside the pump differ!The pump was basicly the same except for this cam and engine parts were the same turbo was lkly diffrent.