What kind of difference have people noticed w/ 366(3K) governor springs?

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Jul 4, 2006 | 12:14 PM

#16

cLAYH

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Joined: Aug 2003

Posts: 2,021

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From: Cochrane Alberta

When I ordered my spring I asked the performance diesel shop for a 366 but they gave me a 386 saying that it was the performance gov spring that was listed in their catalogue for our trucks. So I went with it.

It did give me a noticabe increase in revs over the stock spring but I definetly defuel before 3200RPM.

I agree on sticking with the 366 and will probably change mine out.

Jul 4, 2006 | 09:21 PM

#17

flashgordon

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Joined: Mar 2006

Posts: 2,319

Likes: 1

From: WY

Quote:

Originally Posted by bgilbert

Something like that. I wouldn't waste my time going in 200rpm incriments(sp). You don't want to be opening the pump just to try out another 200rpm. 366 and be done with it.

Thanks bgilbert! so evan with the 366 it will defuel before 3200? this is what i would want....I would be happy with it defuelling at 3000 or evan 2800 would be fine with me!
22-2300 just isn't high enough....... ok mybe it's 2400 rpm

Jul 5, 2006 | 12:06 AM

#18

bgilbert

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Joined: Apr 2005

Posts: 3,253

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From: Terre Haute,IN

Quote:

Originally Posted by flashgordon

It should defuel at 3200rpm. Check my readers gallery for the pic 'IRP 05'. See where it defuels at. Of course there's more to it than just governor spring, but it will give you an idea. Pay no attention to the 'IRP 06' pic.