Engine/Transmission (1994 - 1998) Super-B setup

[NHays]

I am back to my Super-B turbo. I was setting everything back up and have it set as follows. #10 plate is now full forward, AFC is full forward, but star wheel is backed off a bit. The turbo is running at 45 psi max at full throttle. EGTS run about 1200, but I can get them to 1400 if I let the RPM get to 32-3300. I have not seen higher EGTs than that. The exhaust is hazy but not to bad. I might back the plate off a little if it gets out of hand. My main concern is head gasket. I have had the engine rebuilt but they did not o-ring or stud anything. Another issue is timing. I think my timing may be a little high but the truck seems to run fine. What sort of timing would be the best to run. I think the timing is up around 20* but i am not sure. The engine makes a little more noise than a stock engine does but its not bad.

 

[NHays]

So, what do you think?

 

[FordCummins]

If it were me, Id back the timing down to around 16. Id also be worried about that boost level with a stock HG and no studs. I would think down around 35psi would be a safer boost level.

 

[ttbird]

If it were me, I also would follow FordCummins suggestions. Way too timing for not having studs and stock turbo. It won't last long driving lit like that.

 

[NHays]

anybody have timing tools I can borrow. and is there an upgraded nut and washer for the pump that I need to get.

 

[JHastings]

I have a set of tools that I have been renting out. If you want them, I can send them to you, but there is one guy that is line before you. PM me if you want them. has everything but a barring tool.

Jamie

 

[NHays]

Thanks but I just bought a set from snap-on.

 

[NHays]

I have heard that the super B can be run up to 45PSI because the drive pressure is not as high as the HX35.

 

[FordCummins]

Super Bs are wastegated at 42-45psi from BD power, but that kind of boost on a stock headgasket and no studs is still pretty dang high.

 

[NHays]

What if I put in a set of studs. what kind of boost could I safely get to.

 

[Cooker]

With a Super B there is no need to run more boost. It will just be hot air.

 

[NHays]

I would not need to run anymore air than 45psi, I just don't want to pop the head gasket. If I put in head studs would I be able to run the 45-50 psi boost and leave it alone.

 

[thekidfan]

IMO studs are cheap insurance!! If I were planning on running over 40 psi I would buy studs!! But that's just me.

 

[CogginsP]

I would not need to run anymore air than 45psi, I just don't want to pop the head gasket. If I put in head studs would I be able to run the 45-50 psi boost and leave it alone.

A set of studs will keep you safe up to 50 psi

 

[NHays]

Ok, I am going to check timing, and set this thing to about 36psi for now until I get studs. Thanks for your help again.

 

[pwerwagn]

I know its not the "safe" thing to do, but Ive been running 40+ psi on stock HG and bolts, with 200K miles for quite sometime now.



I think a super B at 45psi is safer than most guys running 36-38 with an HX35. Just my opinion.

And FWIW, LOTS of hp has been made with stock HG/bolts re-torqued.



--Jeff

 

[NHays]

whats the re-torque procedure for the stock head bolts.

 

[NHays]

Just giving everybody a little update. My injection timing was set at 22. 5* advanced. I am glad I got that taken care of. I just set the injection timing to around 16*, its more like 15. 5 but close. Everything runs ALOT smoother and sounds happier. I am now wondering what I should set the waistgate at, or max boost I should have. I am also wondering if that much timing advance was hurting my fuel economy?

 

[CToney]

Advanced timing lowers egts, increases cylinder pressure, and helps high end hp at the expense of low end power.

 

[NHays]

Ok, Thanks for the info. I was aware of what advanced timong does. I was wondering if my fuel mileage was lowered by it. It seemed to run really well around 24-2500 RPM, but around 2000 it just didn't feel good. were as before this little incedent happened with the timing it ran really well at 1700-2000 rpm. Kinda self explanitory though, obviously the timing was the culprit because it was way over advanced. Now I just need to know what max boost I should run to keep my HG intact and my EGTs down. Thanks Oo.