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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #141  
Old 04-18-2011, 04:42 PM
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Davejf51 Davejf51 is offline
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K so you change the filter and the tube. Does Cone filter or flat "drop in" filter matter???
Thanks for the reply
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  #142  
Old 04-18-2011, 10:36 PM
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+1 for Volant. Plus the Donaldson filter is awesome. no maintenance for 100,000 miles.
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  #143  
Old 04-23-2011, 01:26 PM
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mewmewpewpew mewmewpewpew is offline
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Quote:
Originally Posted by HoustonHemi View Post
Or, you could opt for the 100% enclosed 100% cold air system that already comes with the truck,,, $0.00
to bad it's a 100% heap of shit
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  #144  
Old 05-13-2011, 03:43 PM
BigOntheBlue BigOntheBlue is offline
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Default Spectre 9932 CAI

The previous owner had a drop-in flat K&N in the stock airbox. I wanted something less restrictive but didn't want to spend $300-$400. To get an improvement from any intake we must increase the airflow (CFM) and decrease the temperature.

I chose a Spectre PROFab 9932 - they are on sale at Summit Racing but even cheaper at Amazon.com. I picked mine up at Amazon for $112 shipped. It took me about two hours last night to install it. I wasn't in a rush and I stopped frequently to admire my choice in beer.

Spectre claims 12 HP gain - they have dyno sheets and other useful info on their site. YMMV
http://www.spectreperformance.com/#CATALOG.9932

I already have a Flowmaster cat-back installed. I thought the tone in the cabin was fine with the stock intake - but out it came, hoping for more MPGs.

My first bit of testing is all seat of the pants - but I'll get to work on the sensors and data acquisition stuff later. I was just too excited not to install it right away.

First impressions -

I'm very impressed with the materials and quality. Everything was exactly as I expected them. The fit is excellent and the instructions were exact. The only thing that didn't work for me was re-locating the washer fluid reservoir pump and level sensor wires through the hole in the heat shield as they suggested - the wires aren't long enough. Didn't matter in the least anyway.

Sounds great - Awesome gasp when you stomp on it and a good tone through the RPM range. Certainly more engine noise in the cabin.

No low end gain - didn't really expect that. I would say that there is a tiny bit quicker response when you stomp on it from idle, but no difference in stomp response in 2nd or 3rd gears - while at steady RPM. I'm not really all that impressed with the throttle response but that's for another thread.

Better passing power - I do have more power when I get it wound up. I haven't highway dragged with anyone yet to really tell the difference in roll-on but I wasn't disappointed on my way to work this morning.

MPGs - Don't have enough data on that. I've driven the last tank very conservatively and I got 345 miles out of it with 91 octane and with Lucas injector cleaner until my DTE read zero.

Ok so all this is very subjective and you want some data and pictures I'm sure. I don't have access to a dyno and I don't go to the track for slips.

However, since it comes down to air-flow and air temperature, I can measure those parameters along with throttle position, rpm, outside air temp, engine temp and fuel pressure. What else would you like to know? I can probably get timing data as well but I'm not sure which sensors to tap into for that yet. I won't be going through the ECU to collect this data, it will be either from sensor taps or from my own sensor installations.

Now that it's installed and I kinda know how it feels, I'm gonna pull it back out and drill at new hole for the IAT down at the filter. If the computer thinks the air is cooler than it actually is at the TB then it will advance the timing and add some fuel to compensate for the denser air. I'll measure the differences in temperature to know exactly what the IAT is seeing in both places. This seems counter-intuitive for MPG increases but if it takes fewer HP to drive the same conservative manner then it would follow that it should take less fuel to do so as well. This can't be worth more than a couple percent and this effect will be negated by a programmer anyway, so we'll see.... fun to find out for sure though.

The intake is polished aluminum so it's technically conducting engine heat to the air flowing into the TB. A future test will involve insulating the intake tube. HOWEVER, air flowing at anything more than idle doesn't have much time to get heated from the intake tube. The surface area of contact is actually quite small for the volume of air flowing through it. Exactly opposite of the effect through a radiator, which has a high surface area to volume ratio.

That's all I got for my lunch break - Have a great weekend!
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  #145  
Old 05-13-2011, 05:12 PM
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Great write up ^^^^ and some great info!
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  #146  
Old 05-13-2011, 05:13 PM
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and I LOL'd at this...

I wasn't in a rush and I stopped frequently to admire my choice in beer.

That, my friend, is the true essence of modding...
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  #147  
Old 05-15-2011, 02:00 AM
BigOntheBlue BigOntheBlue is offline
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Thanks Maddog!

I put together a quick video so far. The in cabin sound is pretty weak so I don't think it'll pick up the subtle differences on the camera.

Check it out...

http://yougotresidualcom.ipage.com/M...%20Air%201.wmv

Stay tuned for the sequel.
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  #148  
Old 05-15-2011, 02:22 AM
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need to get a big tube for it to roar and really respond noticeably..

I ran an ebay 3.5" cai (looks just the spectre) for a year got the same results you did..but only when I spent the $$$ and got a big one did I get that holy sh!t feeling and it's the same cai I've run since 06 and i'm never changing it (unless i'm in a show and swap out to the vararam)

old cai


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one quick 05 hemi qc...with over 250k miles on odo... on the 5.7...stoker 6.4 now, new times coming
performance mods: yes 1/8 - 7.85 @ 93.20, 1/4 - 12.10 @ 113.96
2005 Dodge Ram 1500 QC SLT: 12.107 @ 113.960 MPH
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  #149  
Old 05-15-2011, 11:34 AM
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Thanks freddie - Even though the TB is 3.5" - the bigger feed tube increases the static pressure before the TB - Higher Static pressure = better response. So indeed - your results make a lot of sense.

However, the cost of gas and low MPGs has driven me to do this mod and I had to "waste" money that was barely in the budget in order to save enough money to make even more impact with a bigger system. I've already noticed about 1.5 MPG increase. Modest gain but significant for the number of miles that I drive.

I've read your CAI posts so I'm sure its out there somewhere but can you tell me what your MPG gain has been when you drive conservatively?

CheerZ
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  #150  
Old 05-15-2011, 01:36 PM
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I know this ain't right but it's nice to look at..hehe..

[
__________________
-fast freddie-
one quick 05 hemi qc...with over 250k miles on odo... on the 5.7...stoker 6.4 now, new times coming
performance mods: yes 1/8 - 7.85 @ 93.20, 1/4 - 12.10 @ 113.96
2005 Dodge Ram 1500 QC SLT: 12.107 @ 113.960 MPH

Last edited by chefred112; 05-15-2011 at 01:39 PM.
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