Improved towing
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Diesel Fan
Joined: Jan 2015
Posts: 48
Likes: 4
Improved towing
Any ideas on something to improve my shift points or power on my 97 6.5 half ton specifically on hills. manual waste gate, 3.5 inch straight, exhaust k&n intake, heath diesel lift pump, relocated pmd with heat sync, other than that stock as far as I know, fuel settings seem conservative based on the egt never went above 600 even in the hardest pull. Is it worth turning up the fuel? Or any other simpler tricks I may have missed? I pull my trailer thousands of miles at a time and speed drops like a rock as soon as it downshifts on a hill somewhat of an aggravation for me
Last edited by 1997silverado; Feb 6, 2015 at 11:54 PM. Reason: Add to it
Newbie
Joined: Dec 2012
Posts: 9
Likes: 1
I'd go 4" diamond eye exhaust, it comes with a really nice DP, HX40 and a Heath towing tune to compliment it.
What kind of mileage is on it? Might be time for some stock injectors-NO marine or chinese crap, and 40hp injectors don't exist, marketing gimmick.
What gearing do you have?
What kind of mileage is on it? Might be time for some stock injectors-NO marine or chinese crap, and 40hp injectors don't exist, marketing gimmick.
What gearing do you have?
Thread Starter
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Diesel Fan
Joined: Jan 2015
Posts: 48
Likes: 4
4:10 gearing and I am looking at a heath diesel tune and Bosch injectors but until the price of oil goes back up I can't afford to do any more modification (my job security
Being directly linked to it), it' got 230k right now
Being directly linked to it), it' got 230k right now
Last edited by 1997silverado; Mar 3, 2015 at 08:35 PM. Reason: Didn't finish
Diesel Fan
Joined: Mar 2014
Posts: 59
Likes: 1
From: Missouri
I personally haven't been happy with my kojo tune, the torque converter kicks in at around 42mph... horrrible for pulling my skid loader, constantly pulling the shifter down to compensate. I told pat I hauled with it...
Diesel Bomber
Joined: Oct 2012
Posts: 1,848
Likes: 103
From: Scugog Island ONT.
most reports are that KOJO is good to deal with about such matters.
Diesel Enthusiast
Joined: Dec 2015
Posts: 195
Likes: 4
only 600* on the egts!? My 6.5 suburban will max out my egt gauge if i insist pulling my race car trailer. should be able to do 1000-1100 when you need it, if you are only down at 600* you either have a fuel supply problem or your stock tune is way more conservative than i thought they were. get a tune! you'll love it! 
