How to lower coolant temp?

[skates15]

4) Adjusted part-throttle shift points higher.

What is the result of this change?

 

[Musky Mike]

That's great news!! I have a Mishimoto 180 ready to go in but I had read some posts on the FB groups of the Mishimotos failing too. I have a Mopar one in my truck now but the coolant and oil temps get hotter than I'd like so I really would like to run a 180.

Glad yours is working out for you and I think I'm gonna install my Mishimoto based on your experience.

What's the Mishimoto 180 part number? Is there a Mopar part number?

 

[skates15]

What's the Mishimoto 180 part number? Is there a Mopar part number?

Try Nick at Got-Exhaust. He is a preferred vendor and I've bought from him before. You can search for Got-Exhaust and message him directly to see if he can get it for you. Otherwise it is sold at many places, easy to find.

 

[Mojo88]

What is the result of this change?

This very modest timing table change resulted in a noticeably peppier response for off-the-line and moderate acceleration. It was fairly amazing, I had adjusted the gas pedal curve a little bit (kinda like a 'Pedal Commander' does), but this timing change then magnified that effect, it was too jumpy off the line. So I reverted the gas pedal curve back to stock, and it's perfect now with just a tad more timing.

This would have ZERO effect for WOT operation, I did not make any mods in those tables.

 

[Mojo88]

What's the Mishimoto 180 part number? Is there a Mopar part number?

Here's the box:

 

[Wild one]

This very modest timing table change resulted in a noticeably peppier response for off-the-line and moderate acceleration. It was fairly amazing, I had adjusted the gas pedal curve a little bit (kinda like a 'Pedal Commander' does), but this timing change then magnified that effect, it was too jumpy off the line. So I reverted the gas pedal curve back to stock, and it's perfect now with just a tad more timing.

This would have ZERO effect for WOT operation, I did not make any mods in those tables.

If you added 4 degrees to part throttle timing,what are you running for fuel in it?

 

[Mojo88]

If you added 4 degrees to part throttle timing,what are you running for fuel in it?

I don't think I needed any octane boost, but I fill up with 93 every second or third tank. Engines like a lot of timing at part throttle, as you know. Less fuel = slower burn.

 

[Wild one]

I don't think I needed any octane boost, but I fill up with 93 every second or third tank. Engines like a lot of timing at part throttle, as you know. Less fuel = slower burn.

That depends alot on what your doing,part throttle high load situations with alot of timing are prone to causing engine ping.
Less fuel doesn't equal slower burn,it actually speeds up the burn,as the mix is leaner,and you know the old saying "Lean is Mean,and makes power" until it pops a ring land or burns a hole in a piston.
4 degrees added at part throttle is a fair bit,and alternating fuel octane isn't my idea of keeping it safe,hopefully you're at least using 91 between batches of 93.
If you want to keep it safe,you should be adding fuel,as a rich mixture slows the burn down,and helps keep combustion chambers cooler and rings happier. Do you have an A/Fr gauge,if not get one ASAP if you're going to mess around with HP and add fueling and timing to it.

 

[Mojo88]

That depends alot on what your doing,part throttle high load situations with alot of timing are prone to causing engine ping.
Less fuel doesn't equal slower burn,it actually speeds up the burn,as the mix is leaner,and you know the old saying "Lean is Mean,and makes power" until it pops a ring land or burns a hole in a piston.
4 degrees added at part throttle is a fair bit,and alternating fuel octane isn't my idea of keeping it safe,hopefully you're at least using 91 between batches of 93.
If you want to keep it safe,you should be adding fuel,as a rich mixture slows the burn down,and helps keep combustion chambers cooler and rings happier. Do you have an A/Fr gauge,if not get one ASAP if you're going to mess around with HP and add fueling and timing to it.

I've always operated under this assumption about A/F ratio and timing at light load: at part throttle, ignition timing needs to be advanced to optimize combustion when the air-fuel mixture is less densely packed, as it burns more slowly. When the throttle is partially open, the air-fuel mixture is less dense than at wide open throttle. To ensure efficient combustion, the spark needs to ignite the mixture earlier.

When you say, "Less fuel doesn't equal slower burn,it actually speeds up the burn", I totally concur at WOT. But the burn speed is slower with the less dense A/F mixture at part throttle.

You're right about the wide band, if I was gonna tune for power, I'd absolutely install one.

Thanks for the comments.....

 

[Wild one]

I've always operated under this assumption about A/F ratio and timing at light load: at part throttle, ignition timing needs to be advanced to optimize combustion when the air-fuel mixture is less densely packed, as it burns more slowly. When the throttle is partially open, the air-fuel mixture is less dense than at wide open throttle. To ensure efficient combustion, the spark needs to ignite the mixture earlier.

When you say, "Less fuel doesn't equal slower burn,it actually speeds up the burn", I totally concur at WOT. But the burn speed is slower with the less dense A/F mixture at part throttle.

You're right about the wide band, if I was gonna tune for power, I'd absolutely install one.

Thanks for the comments.....

Your call,but you better get an A/Fr gauge installed if you're going to play with HP and fueling at part throttle.
I'm not going to say much,but i think you're nuts to mess with the tune,with-out at least installing a A/Fr gauge,as you have no idea of where you're at with-out one,especially if you're just tuning by the butt dyno.
I even have an AEM gauge in my stock 300 that's catless,just so i know what's happening
Hopefully you're pulling the plugs fairly often and you know how to read them,as that's your only indicator of whats happening in the chamber,and if you see any tiny silver flecks on them,you do something to get rid of them

 

[Marshall]

How about shifting the transmission down a few gears to keep the RPM's up ?
That should pull more air through .
Are you sure the fan is coming on ?

 

[Mojo88]

How about shifting the transmission down a few gears to keep the RPM's up ?
That should pull more air through .
Are you sure the fan is coming on ?

Before I had HPTuners, I was using the manual mode, and setting it at 5th gear max for all my local driving. But the trans still shifted too early, it would be in 5th gear at around 25mph, so it felt like it was lugging.

And yes, I have checked fan and AGS operation temps carefully after each mod to the PWM fan settings.

 

[Wild one]

Before I had HPTuners, I was using the manual mode, and setting it at 5th gear max for all my local driving. But the trans still shifted too early, it would be in 5th gear at around 25mph, so it felt like it was lugging.

And yes, I have checked fan and AGS operation temps carefully after each mod to the PWM fan settings.

That's where paddle shifters come in handy My 14 has had them for over 10 years,one of the better things i did to it,plus they're alot of fun to mess with

 

[skates15]

That's where paddle shifters come in handy My 14 has had them for over 10 years,one of the better things i did to it,plus they're alot of fun to mess with

I wish it did have paddle shifters. I'd use those frequently for down shifting rather than the little buttons, which I fumble with.

 

[Wild one]

I wish it did have paddle shifters. I'd use those frequently for down shifting rather than the little buttons, which I fumble with.

They're fun,and that's even with a tuned engine and transmission. Mine were made by a young dealer tech in Edmonton,but a few years ago @Brandon-w released his versions of them.

 

[skates15]

This very modest timing table change resulted in a noticeably peppier response for off-the-line and moderate acceleration. It was fairly amazing, I had adjusted the gas pedal curve a little bit (kinda like a 'Pedal Commander' does), but this timing change then magnified that effect, it was too jumpy off the line. So I reverted the gas pedal curve back to stock, and it's perfect now with just a tad more timing.

This would have ZERO effect for WOT operation, I did not make any mods in those tables.

This is interesting to me, so I'll start a separate thread.

 

[skates15]

They're fun,and that's even with a tuned engine and transmission. Mine were made by a young dealer tech in Edmonton,but a few years ago @Brandon-w released his versions of them.

That's amazing. He did it for 5th gen?

 

[Marshall]

That's where paddle shifters come in handy My 14 has had them for over 10 years,one of the better things i did to it,plus they're alot of fun to mess with

I wish you had not posted that, I really don't need them, I think, maybe?

 

[Wild one]

That's amazing. He did it for 5th gen?

The guy that built mine,only did them for 4th Gens,the 5th Gens weren't even on the horizon back in the spring of 15 when we put them in my truck
He built 3 kits,one for his truck,a set for my truck,and another set for a guy in BC.
Talk to Brandon-w about a set for a 5th gen

 

[skates15]

The guy that built mine,only did them for 4th Gens,the 5th Gens weren't even on the horizon back in the spring of 15 when we put them in my truck
He built 3 kits,one for his truck,a set for my truck,and another set for a guy in BC.
Talk to Brandon-w about a set for a 5th gen

Okay, thanks.