sound like I need to get one of these.

 

yep, they are amazing little tricks that know one can see.
for my teams race motor we are going to use this same spacer but set the pump to be at 15 degrees advanced at wot. from experience with other trucks that seems to be the sweet spot.

 

If you're wondering about running the KSB with the M&H Dynamic Timing Spacer, or one to run the KSB "Hot Wired" ON in a race scenario (full injection event timing advance) while using the spacer, . . . .

- The timing spacer apparently does not offer enough timing range to have it set advanced enough to use BIG injectors to their full capabilities, and not have the engine knock BIG-TIME at low engine rpms (too far advanced).
- Set the IP timing for best WOT performance with the KSB on. This appears to still have much better than stock performance using the spacer with the KSB off and not racing.


In my case, my base dyno run was with the timing set initially by ear. This was with the timing set with the KSB off and advanced enough that there was tolerable knock @ part throttle so as to still get good WOT performance. I was hoping the spacers range was wide enough that I could have best performance without using the KSB at all. As such, my mess was good for 356HP @ 3000 engine rpm.
With that timing, switching the KSB on for a race application actually resulted in less power.

Backing off the static timing and readjusting it with the KSB on, resulted in the most power. 408HP @ 3000 engine rpm.

With the static timing set as such, the engine runs nicely in a daily-driver scenario using just the dynamic timing exclusively. Good low end power with the engine really coming to life with increasing throttle and rpm.


Hope this makes sense.

Things nailed down there and adding some 50/50 W/M resulted in 449HP @ 3000 engine rpm.

Verifying things at the local 1/8th mile track had my best average ET of 8.2x drop to 8.1x ET (8.10, 8.13, 8.15, 8.13).

I've not measured the actual IP timing at this time, but it's advanced two teeth at the gears, and a little past the stock timing marks on the case. Estimated at around 30some degrees at WOT (w/KSB).

- DynoJet 248H, 92.31*F, 29.95in-Hg, 40 ~ 48%RH (Wayne's Dyno & Performance, Jacksonville, NC).
- 12mm VE IP, 6x.016" EDMs, HT3B-S362/14, 181/210 cam, BIG IC, ported head, etc.

 

are you at liberty to say how you have your static timing set?

 

I may have been editing and adding this just as you posted.

 

David I have the tool to measure it if you want to borrow it. I can ship it out to you, I have no use for it now that I sold the 89 and would like to see someone thats searching for big power be able to use it.

 

Actually , I have the dial-micrometer and adapter to measure the piston lift of the IP, as well as a DTI Diesel Timing Analyzer that will allow me to see where the injection event timing is at, at any engine rpm.

I just haven't taken the time to use it lately. The analyzer works much like a standard gasser timing light (gun): Clip the sensor to injector line 1 and point the light at the engine damper with a timing tape on it. Digital RPM and degree displays. It's pretty neat.


But frankly, I've come to the conclusion that dyno tuning with track times to back it up is quickest and most reliable for setting the timing. Forget the numbers, just twist the danged thing till it runs best overall. Then see where you're at with the light and make note.

That being said, once I see where it's at via the light, I can quickly and easily set it there again with any future changes with the engine (adjusting as needed).

Bobby, I do appreciate the offer though.

Ran a couple of high 12.9s at the 1/4th mile track (Coastal Plains) with miserable air, 1/2 tank of fuel, and 100lbs of beach-tack recently.

 

Well dang David... You have all the cool toys!

 

you could always run two spacers to gain more travel but a longer spring would have to be found with constant tension, i haven't found one yet.

 

The timing spacer is capable to a 27* advance I heard someone say? Is this correct? I've boosted up to 35* and just don't want to pop a head gasket, it's held together so far .


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