summer time engine more sluggish
Post Fiend
Joined: Jan 2007
Posts: 18,157
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From: Stanton DE
Originally Posted by liquid 1
Back when I posted this I was running stock tune with the superchip, and 87 octane only, and like galaxie posted the truck acted like it dont like warmer weather, I had an older K&N 57 series FIPK with no heat shield, since then I have Bumped the tuner up to performance tune and run only 93 octane and had K&N send me a new FIPK kit with heat sheild, WOW what a change in performance, the truck runs much better and seems to be not as sensitive, But Im sure once the temps get below 60 It will even run better..not sure why the octane would make a difference, But to me with the superchip on performance mode and the better octane its like a new truck..
I did the TSB mods my self..
I did the TSB mods my self..
I didn't spend all that money on a tuner to run it on 87,,,hahahahahaha
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Senior User
Joined: Feb 2007
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Originally Posted by phil6608
I had the superchips once upon a time....lol Never had it on the 87 tune so I don't know what it's like but on performance it ran great!
I didn't spend all that money on a tuner to run it on 87,,,hahahahahaha
I didn't spend all that money on a tuner to run it on 87,,,hahahahahaha
Whats strange is It all evens out, in distance But the power is much better...
Post Fiend
Joined: Jan 2007
Posts: 18,157
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From: Stanton DE
Originally Posted by liquid 1
Phill your correct, I was being cheap and did,nt know any better.. Whats strange is It all evens out, in distance But the power is much better...
Whats strange is It all evens out, in distance But the power is much better...I'm just saying that I bought a performance mod for more performance. So I whent right to the 93 tune a never looked back.
And it did give my truck a lot more power.
With all my mods now it still feels a little off when it's hot out.
When its under 60 it's like a hole new truck!
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
It's very simple as to why the truck feels mosre "sluggish". It's ignition spark retard based on higher ECT and ACT. You're likely running the A/C too,and that'll also have an extra load on the engine.
JL
JL
Lead Driver
Joined: Sep 2006
Posts: 7,907
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Air density which is affected by temperature and elevation controls cylinder filling, therefore power produced at combustion.
Temperature controls gasoline density as well.
You cannot have the same performance hot as cold, given all else the same, in any gas engine since you cannot control these natural actions on a N/A basis.
Temperature controls gasoline density as well.
You cannot have the same performance hot as cold, given all else the same, in any gas engine since you cannot control these natural actions on a N/A basis.
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