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Ksb All The Time Hot
[duhhh] I sat straight up in bed last night and ran out to look under the hood of my truck.
Just as the premonition predicted, :o both wires from both solenoids were twisted together and tied to the ignition ON wire from the key-switch, thereby making the KSB hot :o all the time the engine was running, up hill and down, loaded and empty, winter and summer, for the entire year-plus that this engine has been in my truck. I have since remedied this situation and replaced the blade terminal, on top of the run solenoid, with a ring-terminal---a job I don't recommend undertaking without an arsenal of strong little-bitty-nut-finding-magnets on hand.[duhhh] What are the results of this situation?? What does it do to mileage?? What does it do to EGTs?? Could this possibly be the reason for nothing I seem to do helping my through-the-roof EGT situation?? For the present, there is nothing hooked to the KSB; it probably has been on enough to do for a while.[laugh] Thanks. |
Depending on mods, hot wiring the KSB can result in up to a 40hp increase.:cool: I used to have mine on a switch in the cab. When I would dyno, or want a little extra go juice, I'd just flip the switch.
It will increase timing, and fuel pressure. I wouldn't recommend running it hot all the time. I did forget a few times after turning it on - one time for about 5 hours of driving.[duhhh] Prolonged activation of the KSB can lead to fuel leakage, usually around the o-ring on the back side of the timing advance chamber, or on the throttle shaft. Having all that extra timing isn't really desirable for everyday driving. I wouldn't really worry if I were you. Mike |
It's not going to help your EGT situation, but you will find it gives you more bottom end. If nothing's leaking, don't panic.
You do have the "intercooled" style KSB, right? |
Bear, if your engine is as it was when pulled from the '89, you need to hook that wire back up to an 'ignition-on' source. The non-intercooled engines had a different setup and, when NOT supplied 12v, they will increase the timing---the exact opposite of how the intercooled model works. You'll know about 4-5 minutes after you start it, as it'll be pretty rattly. Unplugging my KSB is about the same as a 1/4'' timing bump. I'll snap a pic of my non-ic solenoid this morning---when the coffee's done[coffee] so you can compare it to yours, just in case yours might have been changed....
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Yep, just re-read his sig, I thought he had a '91 intercooled motor in there.
Hook it back up, BK - you had it right by accident. [laugh] |
Interesting...
So I can wire up my KSB in the cab and manually turn it on at startup or when I want a bit more power? |
Originally Posted by wannadiesel
(Post 1401757)
Yep, just re-read his sig, I thought he had a '91 intercooled motor in there.
Hook it back up, BK - you had it right by accident. [laugh] Man!! You mean I broke out in a cold sweat and felt real foolish for messing up, when I hadn't actually messed up and went and messed up unmessing up??[duhhh] [duhhh] [duhhh] Thanks for getting me all straightened out. |
The difference in the KSB setup was a confusion to me.
My engine is an 89 and during a trip I noticed the wire had come off. Tried the wire on /off a few times. The effect was a clear. Ran better down the road with the wire on (power to the ksb) than without. Higher egt's when wire was off. Didn't make sense until I searched out the difference in KSB function. Not clear what a "wax" motor is but I know in my case power on is better. Power off is for cold starting. (Wax on, Wax off). If I have this backward don't tell me, because in my mind it's OK. |
another thing to look for when doing my conversion thanks for the heads up on the intercooled non intercooled isp function. i would have assumed they were the same. thanks again
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