Macktruckman

So you still have an r model?

Sure looked like a pretty truck theres very few old Mack’s around here anymore and none are slick. Mine definitely won’t be perfect. Far from it. But it’s leaps and bounds better than it was. There are some ch’s around, but they just aren’t the same

I’ve never had a headache rack on it. When I first sat the rack on this morning I almost abandoned that plan, I didn’t like the way it looked at all. Just all big and out of proportion. But it’s been sitting in the weeds and needs some cleaning and elbow grease and it will probably help. The biggest help was when the stack went on then it all started to look a little better. Not so huge looking then

I got one side on today before I had to go do other things. Should get the other side tomorrow. I’m just fabbing some brackets that I bolted through the headache rack and then used peterbilt clamps and isolators to fasten to the brackets. Thats an awfully nice truck there.

Thank you, its taken far longer than I anticipated but I’ve done a whole lot more to it than I planned. I got 4 aluminum wheels for the rear but I’m having no luck finding wide aluminum front budd stud pilot. I want a pair to match the rear but new ones I’m finding are $550 each. I’d sure like to buy some used ones

Still have some finishing up to do but it’s getting closer to going back to work

Does it pull alright?

I didn’t know about the internal bracing in the E6350. That’s good to know. Sounds like I need to keep it a little more conservative

I’m nearly finished now. My cab was too rusted out to save so I pretty much rebuilt another cab and put on the truck. I fabbed my own air ride for the new cab and re-did the interior. Added sound and thermal insulation everywhere while the cab was gutted. All new window channels and seals and door seals. Painted the interior and exterior. Pulled the old 2 stick 6 speed out and installed a fuller 9LL so I could have overdrive.pulled the radiator and replaced the mounts because the old ones were shot and the hood hinges bolts to the radiator so the hood didn’t sit right. I’ll post before and after pictures when I’m done. Swapping in a front mount cooler just doesn’t seem like a lot more work at this point if there’s anything to gain. And at least one member here saw an improvement with a front mount. But that’s why I asked the question here. To hear from guys with knowledge and experience. To try and help me determine if it’s worth trying. I appreciate everyone’s input. If it’s not going to help anything then there’s no point. But if it will help,, after everything I’ve done in the last month or so to this truck, the challenge doesn’t seem like that much more work

May be no need. That’s why I asked the question here, to hear from guys like you with the experience

It may not fit but I found a front mount that is about 2” thick. I was thinking I can move my a/c condenser down lower to behind the bumper and might fit the charge cooler then. I’m not opposed to remote mounting the condenser and putting an electric fan on it. I’d like to do the E6-350 settings even if it meant a different turbo and injectors.

Lmackattack, Rob told me and my pump shop confirmed that a simple pump recalibration is the only difference in a 285 and the 300+/315 engine. Pump shop also suggested that with a front mount cooler my turbo might support E6-350 settings. ??

Paul, the truck is down for some restoration work but it’s nearing completion and I’m installing boost and pyro gauges so I’ll know after it’s back in service. I put a temporary manifold pressure gauge on it a year or so ago when I was doing a repair to a charge cooler gasket and I can’t remember for sure but I think boost was around 23-24 psi. I have the same question as you. I’d like to have some idea if I could expect a little more pressure. I’m also curious if someone else has already done this conversion on an older r model like mine. I know this hood is only shorter by 1” than the chassis mount trucks we have. I would think surely someone here has already been here.

Do you happen to know if it boosted your manifold boost pressure any?

I’m not positive I can make it fit but I’m a gonna drag out the victor gas ax and the Lincoln dc and try. Lol

Hi all, i have an EM6-285 with the tip turbine and engine mounted charge cooler. I have scrounged up a chassis mount front air to air cooler I think I can fit in front of the radiator. My question is about how much it would help. If it would support a little more fuel than the engine mounted cooler. And also would it make a bit more manifold pressure since the turbocharger wouldn’t be bleeding off to spin the cooler turbine. I wonder how much boost would improve?

Oh and I have a friend in an auto body shop that’s fixed the cracks in my headliner and covered it with a automobile headliner vinyl. I couldn’t find one of those either. Seems you can buy parts for a be model but for some reason us R model guys are SOL. Lol

I cleaned this one up best I could and painted it. Local machine shop has the 2 center gauge panels and are making me some new ones (with the gauges and stereo cutouts where I wanted them). The interior is all back together now, less those two panels I’m waiting on. So I’m gonna run with it. I appreciate you checking on me

Gray or black would be nice as the rest of the interior is now gray

Can you tell me what engine that turbo should have come out on?

It looks like I have parts of about 3 or 4 engines pieced together. And I have no idea who had hands in it or what they did. Lol i really appreciate your guys helping out with the info. Thank you again

That’s an awful lot of scrap iron swinging around at 2700 in my opinion and limited knowledge

It’s been tinkered with. My mechanic that helps me and I are talking about cutting it back a little. It has tons of power and it has every quick throttle response and will turn @ 2700 rpm. I think it definitely needs governed back down to 2100rpm or so.

Block is definitely a NTC-290 it appears. Thank you for the charts. Did the 290 have top stop injectors?

I don’t know what turbocharger it has. I can’t locate any number or name