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Originally Posted by ATLsilverSS
(Post 569877)
that's great that you are seeing that with just an e35 blend, just imagine what e85 would do if you could run it
I can't wait to get an E tune, working out some bugs on 93, then will decide on e47 or e85:thumb::thumb::thumb: From what I've read on HPTuners, E35 blend is good for +10 degrees timing everywhere. Waiting for the timing adjustment tune as we speak. FYI, you don't gain anymore power going E85 over a 50/50 blend, maybe just a little more knock resistence. Search the web and you will find the results about going full E85 vs. E85 50/50 blend. E47 blend is probably the most I would ever run, but mixing wise E35 is much much easier ratio to deal with. E85 here is only $3.25/gal and I filled up 3 5 gallon jugs which is enough for 3 full tanks of E35 blend on a HHR SS :twothumbs: |
Originally Posted by ATLsilverSS
(Post 569876)
do you have pics of your intake setup? are your iat2 temps any lower than before you moved the filter location?
Nope no way of monitoring it atm, I need to get off my lazy butt and get a interceptor gauge. |
In the process of mounting the hood scoop as we speak, fitting before hood cutout and paint.
Not sure how much it will help, but can't hurt, and besides it sure is gonna look nasty. Lot of visual difference between new scoop and old one. Will do up some pics. when it all done and painted, and of course tested. This way I can switch back to stock setup in a couple of mins, if need be. "Moon" |
Originally Posted by HHRSSouth
(Post 569881)
I don't know how iat2 would be any lower since the only thing changed at the time was air filter placement, the best thing i could figure is that the computer makes adjustments for the temperatures between ait1 and ait2?
Nope no way of monitoring it atm, I need to get off my lazy butt and get a interceptor gauge. I want an interceptor bad but I just got my elm obdii adapter so I'm gonna try the whole torque app thing first. Cheap alternative, just have to see how well it works out |
Originally Posted by moonsign
(Post 569840)
This weekend I found out something intresting.
After a couple of good hard runs at the "Goodguys" Autocross, opened the hood to let some guys have a look at the motor. The engine compartment was like a frigging oven. The plastic intercooler charge pipe was too hot to touch[not good], the airbox and stock ducting were real toasty[almost as hot]. |
87silver: WTF! ZOOM...that disertation went right over my head. Been hitting the ole "Coolaid" have ya. "Moon"
"WHAT WAS THAT??!!"......Mayor of Hiroshima |
Originally Posted by 87silver
(Post 569984)
Sounds like this hypothesis is from a "human" point of view. Understand that our personal evaluation of heat gradients are different than targeted mechancial heat loads. Depending upon the ambient temp, relative humidity and dew point, your evaluation may be different. Sounds like it was a warm day with rising ambient temps in which the air would hold more moisture, thus giving you (a human, not a machine) the impression that the engine is also "uncomfortable". Remember, a piece of machinery is more than comfortable at 190F, which might feel like you are opening an oven on the preheat cycle, especially if you add elevated humidity to the equation. Best thing to check surface temp anomalies is to shoot an infrared thermometer at some of the surfaces (charge piping, valve covers, intake/exhaust man's). I've done this with predictable results. You will also see the collective average of the surfaces rise up to 235F or a little greater once you shut the motor down. And without any air moving across the surfaces as when you are stopped and the hood is open, the dry bulb temps will exhibit higher gradients than wet bulb temps where moving air reduces the temp gradient within the same humidity level.
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Whopper that was funny.
Moon tonight run your car hard then go to a dark area and open you hood. Your downpipe should be glowing bright orange, and your header too. you will then notice this is a great place for a heat shield/sink, and you'll ask yourself why Chevy didn't stick something there. Like a piece of aluminum wrapped in heat pad. This is your biggest source of heat and a problem from the Turbo down. $.02 |
Originally Posted by HHRSSouth
(Post 569873)
I've experienced very noticeable drop in under hood temps and driving "spirited" and parking on my HHR SS since I've swapped over to E35 blend :corny:.
As far as IAT's, you still have IAT 1 in your MAF pre-turbo that measures air temp. I noticed better idle and throttle response just by switching the SSA CAI filter location to outside the engine compartment instead of behind the headlight like it was designed. It was such a noticeable difference my wife even asked me if I retuned the HHR SS again and all I did was switch air filter location for colder air. |
Hey guys I'm new to the forum...just saying hey....figured I'd drop a post as an upcomming project I have pertains to this thread....I am going to cut two reverse scoops into the hood. Will vent the heat out. Will look factory. I considered louver but didn't want the old school look. I will post picks and updates as the project progresses. I have done similar mods in the past on track cars with noticeable reductions in underhood temps
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