brettj3876

And along the back of the sleeper sill. We had to fab a new one for the 93 when we got it. Really the only spot that was cancer. Last summer we blasted the frame from sleeper back

Rochester has the ceramic and pp high flow manifold. Have you talked to Antrim?

That's a hefty price tag. If you want the best of both worlds i guess your gonna have to pay.

Did you get a chance to test the new housing? I would love to hear your opinion. I personally don't lug it below 1400 anyways. Don't wanna put more stress than necessary since she's already turned up. Coming out of jersey on I-80 into PA where it meets 380 i can pull that hill about 58mph with 40k in the box. Only have to split from 8L to 7H We do mostly highway miles so the slight laggy-ness of the 1.32 isn't a hindrance for us. If we were doing stop and go local work all day it'd be a diff story tho. Prob would swap to 1.15 or 1.25 a/r.

S475 (171702) on a vmac1. 15.3 pistons and rochester stg 2 injectors with blixxton does 42-43 and besides mashing it before the turbo spools their isnt much smoke at all. You can find em for $650. 1.32 A/R 75/96mm. I always wondered what their turbo was. Do you know the A/R and wheel sizes on their turbo. 2200 is a bit much. Prob making a cool 1000 on each turbo. Edit: post turbo egt tops out around 975-1000 on a very hard pull and takes a good 3-4 minutes to get up that high. A little laggy but once it hits 1400 it takes off like a raped ape pulling 43psi @ 1375 on up

Yea i agree about the smoothest and best handling truck I've been in. FL classic, 379, t800, crapcadia....all don't compare.

Could of got a s475 (1.32ar on ours) for 700 or less and pull 42 or more psi. On the 93 with stg2 injectors and blixxton it pulls 35 @1250-1300 and 42-43 @1400

How much boost you pushing with that s467? On our 93 with the S475 (171702) we see 42 psi. Have you considered getting the blixxton 200? We have on the 99 460 E-tech and boy it brought that baby to life.

https://youtu.be/LMps1A4uf5Q ok reviving this thread since i found out how to upload vids. If you go back and re-read you'll see what im talking about but the short of it is this Factory 350 vmac1 with 16.9:1 compression. We went with the lower comp 15.3 pistons and stage 2 injectors from Rochester + blixxton. It never smoked/missed before the rebuild and bigger injectors. And it only smokes under no load or light load conditions. We swapped out the pump and econovance to rule that out and still does same thing. Checked each injector and they're good also. Were going mechanical anyways (pump being built now) but figured a video would help with my explanation

What's the specs on the turbo you got? Looks like it will flow a ton better and keep egt's in check

Yea i can't ever remember seeing a Hogan mack until now

You could get them in either set up. The 99 we have is set forward. Imo the set back axle is a better riding setup but the set forward is better setup doing off road/oilfield work

We've been using Gliptone polish with good luck. Have coarse-med-fine-ultra fine and good ole fashioned elbow grease and micro fiber rag

Cool video. Out of all the Ch styles i think the mid roof with fairings/cab extenders looks the best. They don't look right w/o the visor. Just got got done giving the a good wash and polishing

UPDATE. And long post Monday were taking a ride to Trovei and sons (huge mack graveyard in port jervis ny) to see about getting pump, lines, pedal, linkages everything to convert the 93 to mechanical. We found a local guy that does nothing but P pumps. From stock rebuilds to sled pulling 12 valves. My dads already been on the phone with him, explained the setup were running. Running the 15.3 pistons with big injectors and the s475 he figures lock it up around 25-26. He mentioned going flat top plungers and maybe different cut delivery valves. Either way the pump is gonna be rebuilt. Hooked up the prolink while pulling a loaded wagon. Says it has a 400 file in it. Anyways under full load it was getting 16-17 right on point for the 93 400 specs. The 350 file has 22 deg of timing full load and the 300 has 25 deg at full load. We tried getting cook bros mack in Binghamton ny to see about putting the 300 file in it. Going down in hp you think they would.......nope. Another strange mack quirk. The 1993 tune up manual we have lists specs and pump configuration for all E-7 and E-9s for that year. The 250 to 400 E-7 all have the same compression ratio of 16.9, but in most other literature it lists 375 and up 15.3 and below that 16.5. We hadn't heard of 16.9 until that tune up book. Bear with me So thats a big jump 16.9 to 15.3 plus adding big injectors and the huge S475. To compensate for the "extra" space and more fuel in the combustion chamber shouldn't the timing be bumped up more? I would think it would need to be and the pyro is telling me that too. The exhaust heats up faster than it should on a pull. Almost like before the inframe with stock turbo and the blixxton. 16-17 degrees is too far retarded for the setup we have now. We would love to stick with variable timing vmac but so far no luck getting a file from VoMack. I know someone here works at Watts, forget who but if i give u a vin can you try to work your magic? We'd be down there in a heartbeat. Thanks in advance and ill post pics of the 93 tune up book if you guys want. It even has the data file # and all the tech specs on the diff hp levels for 93