Low power due to heat?
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Originally Posted by itlynstalyn' timestamp='1308599644' post='20701625
Heat soak is a power-killer, no ifs ands or buts about it.
Either that or purchase a FMIC and see if that makes a difference.
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From: Long Beach, CA
Originally Posted by Kyushin' timestamp='1308600575' post='20701689
[quote name='itlynstalyn' timestamp='1308599644' post='20701625']
Heat soak is a power-killer, no ifs ands or buts about it.
Heat soak is a power-killer, no ifs ands or buts about it.
Either that or purchase a FMIC and see if that makes a difference.
[/quote]
Going to look into this, no E85 stations near me that I am aware of
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Had a recent retune because I was pinging and power went way the hell down.
Dyno showed 8.8lbs and only 310Rwhp, Tony said he had to remove alot of timing due to knock. Trying to figure out where the hell all my power went to, it was @ 350 last time with the exact same setup, I dont get it. Main difference now is that its summer and hot as hell out, im sure I had a huge deal of heat soak due to driving in morning rush hour traffic to get to UMS and it was a very warm day out, but to lose that much power?
Currently running the Novi 1200 with a 4.4'' pulley registering @ 8.8lbs ID 725 injectors and Kpro. I want to put in the 4.2'' pulley but not until things get sorted out here.
Any suggestions or is this normal with the shift in heat? Seems I lost most of the power due to timing being taken out due to knock... Plugs are good, I just changed them out after the dyno and they all looked healthy.
I was hoping to hit 400 with the new pulley but FFS I gotta find out why I took this dip
Dyno showed 8.8lbs and only 310Rwhp, Tony said he had to remove alot of timing due to knock. Trying to figure out where the hell all my power went to, it was @ 350 last time with the exact same setup, I dont get it. Main difference now is that its summer and hot as hell out, im sure I had a huge deal of heat soak due to driving in morning rush hour traffic to get to UMS and it was a very warm day out, but to lose that much power?
Currently running the Novi 1200 with a 4.4'' pulley registering @ 8.8lbs ID 725 injectors and Kpro. I want to put in the 4.2'' pulley but not until things get sorted out here.
Any suggestions or is this normal with the shift in heat? Seems I lost most of the power due to timing being taken out due to knock... Plugs are good, I just changed them out after the dyno and they all looked healthy.
I was hoping to hit 400 with the new pulley but FFS I gotta find out why I took this dip
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From: Long Beach, CA
I hope so, but it does tend to suffer alot of heat soak during the summer. I have seen CT dudes running much more boost than I, but the main difference is fuel... only 91 piss water here >< I am going to look into E85 if and when a station is built around here.
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You have all the magic factors for power loss. 91octane in the high heat. Sounds like you were heat soaked and then tuned to that, chances are its an extreme situation and not the conditions which you encounter most of the year during spirited driving, better to be safe though. A good water/meth kit would do wonders for you.
At the very least you could boost your octane, run a gal or two of meth or alcohol in the gas tank. You likely only need to boost it a few points to prevent detonation where you were timed to before, in the higher heat. I think Joeyballs figured out 2 gal of Toluene from Home Depot to a full tank was worth 99 octane. But that's adding $30 to a tank of gas. Try one, or hell even dumping in a 4 pack of HEAT which is pure meth. $1.37 for one 12oz bottle. 93-94 oct would be an improvement.
At the very least you could boost your octane, run a gal or two of meth or alcohol in the gas tank. You likely only need to boost it a few points to prevent detonation where you were timed to before, in the higher heat. I think Joeyballs figured out 2 gal of Toluene from Home Depot to a full tank was worth 99 octane. But that's adding $30 to a tank of gas. Try one, or hell even dumping in a 4 pack of HEAT which is pure meth. $1.37 for one 12oz bottle. 93-94 oct would be an improvement.
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[/quote]
Piss water would actually help you
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From: Long Beach, CA
You have all the magic factors for power loss. 91octane in the high heat. Sounds like you were heat soaked and then tuned to that, chances are its an extreme situation and not the conditions which you encounter most of the year during spirited driving, better to be safe though. A good water/meth kit would do wonders for you.
At the very least you could boost your octane, run a gal or two of meth or alcohol in the gas tank. You likely only need to boost it a few points to prevent detonation where you were timed to before, in the higher heat. I think Joeyballs figured out 2 gal of Toluene from Home Depot to a full tank was worth 99 octane. But that's adding $30 to a tank of gas. Try one, or hell even dumping in a 4 pack of HEAT which is pure meth. $1.37 for one 12oz bottle. 93-94 oct would be an improvement.
At the very least you could boost your octane, run a gal or two of meth or alcohol in the gas tank. You likely only need to boost it a few points to prevent detonation where you were timed to before, in the higher heat. I think Joeyballs figured out 2 gal of Toluene from Home Depot to a full tank was worth 99 octane. But that's adding $30 to a tank of gas. Try one, or hell even dumping in a 4 pack of HEAT which is pure meth. $1.37 for one 12oz bottle. 93-94 oct would be an improvement.
FF header and berk HFC are next on the list, might as well do them all at once.
So no real way to control heat soak in the engine bay to the aftercooler? Are those thermal coatings worth anything or a waste?