It gives the car a meaner growl under the hood. Based on UpRev readings, the temperature barely changed (a couple degrees, negligble) while in motion with it on/off (although, idling was a different story). See here: post6674631.html?hilit=uprev%20intake%20temp#p6674946DKASM37 wrote:No doubt, Ilya. Keep us posted on that. Btw I see u took off the cowl with the snorkels, any specific reason u run your set up that way?
15-20% MINIMUM loss through an automatic. Our engines are underated from the factory. Our engine realistically makes 450-475 HP at the flywheel right out of the box. Even at 15% loss (stick shift losses), my car was making 450+ hp to the flywheel STOCK.Ilya wrote:Actually, now that I think about it, these probably are not going to give 9hp. That dynochart is not from an M56. How do I know that? NO WAY we lose 90hp from crank to wheel (329hp on the dyno? REALLY)? Most cars lose like 20hp.
I might have to return these and just wait for the R2C. Or go down the street and have my car dyno'ed before and after.
EDIT: ALSO, the Dyno Chart date shows a date of 2010...a date in which the M56 did not yet exist and only the M45 existed.
I don't like shady stuff like this and refuse to support companies who claim specific numbers for a product that isn't even for our car. Definitely returning/refusing package.
Based on the fact I have run 94 mph in the 1/8 mile with the exhaust cutouts opened and dyno over 420 at the tire, I would say 500 hp is fairly easy out of this engine.walt1227 wrote:Just purchased a set of these myself. Did you guys see any difference in using them? Also are these cars really more like 450-475 HP stock? I kinda believe it to be true because it pulls so hard and fast. I was riding one night and my wife had a hemi charger pull up beside her the 5.7 and just half throttle she put a tail cutting on him lol. My brother has a 300C hemi and I beat him so bad the other day. The mustangs are scared to run me and the 6.1 chargers are always going the other direction. I did play with a Hellcat Challenger when he had the black key (500 HP) in and he could not pass me until I decided to get off the gas. I am suppose to race my cousin in his 6.2 CLS 63 but won't do that until I have my 2.5" exhaust setup done with the removal of the secondary cats, resonators, and stock mufflers replaced with magnaflow magna pack straight-through mufflers. So if those 450-475 HP stock numbers are right which I am 75% sure of this custom exhaust pushes this thing past 500 HP easy.
My guess is it wa running with the oil temps or IATs too hot. Also made a noticeable difference on all my VK56s so far to run in the 160-170°F range. Cooling fans do not come on until ~205°F on a stock M56.MpamP wrote: https://www.dropbox.com/s/ujnyeczip7nuu ... M.jpg?dl=0
I must have a really messed up car, or dyno or both because the above link is my "before tune and then after tune" with my mods all installed before the dyno.
You need to start a 'build log' thread with images and exact details lol.DFW2011M56S wrote:My guess is it wa running with the oil temps or IATs too hot. Also made a noticeable difference on all my VK56s so far to run in the 160-170°F range. Cooling fans do not come on until ~205°F on a stock M56.MpamP wrote: https://www.dropbox.com/s/ujnyeczip7nuu ... M.jpg?dl=0
I must have a really messed up car, or dyno or both because the above link is my "before tune and then after tune" with my mods all installed before the dyno.
I am also running without the engine cover and the upper radiator piece that is restrictive to airflow.
2.5" duals, X pipe, secondary cat delete and cutouts.
It is the piece you remove to service the coolant reservoir and air filters. Car makes a mean intake growl with it removed as well. It has multiple sharp bends that are smaller than the intake tubes and airbox opening.walt1227 wrote:Where is this radiator piece?
If I can ever stop long enough from work, tuning GM vehicles and working on my stuff I will do that!!!Ilya wrote:You need to start a 'build log' thread with images and exact details lol.DFW2011M56S wrote:
My guess is it wa running with the oil temps or IATs too hot. Also made a noticeable difference on all my VK56s so far to run in the 160-170°F range. Cooling fans do not come on until ~205°F on a stock M56.
I am also running without the engine cover and the upper radiator piece that is restrictive to airflow.
2.5" duals, X pipe, secondary cat delete and cutouts.
It's actually a ram intake air duct that channels air through the grille into the air filter boxes. Some folks remove this to facilitate more air flow. I prefer to leave mine on; as an alternate method, I drilled several 3/4" holes in the filter boxes to allow more air to be sucked in. I believe that this along with the ram air duct set up, will produce the same effect (growl included) as removing the duct altogether without the heat soak issues.walt1227 wrote:Where is this radiator piece?
I drilled a bunch in the front and sides (intake side) with a unibit...maybe 18 - 20 or so. Heck you could just saw out a big square for that matter, but I thought the holes would look cleaner. I will post some pics when I get home. I ordered a set of the HPS intake hoses on Ebay a couple of days ago. I believe that these hoses plus with the holes in the filter boxes or with the air duct removed (if that is what you want to do) will be as good if not better than the R2C intakes.MpamP wrote:That's a nice idea Army, my plastic clip holders on rop of my intake boxes are broken. I'm going to try this and see what it does for mine. How may holes did you drill? Could u post a pic?
No worries, read through this thread: r2c-intake-t604534.html1080Rider wrote:Reviving an old thread...
Armybrat, thanks for the pics! It's good to see other people's handiwork!
This is also the only part I have lol. If I had an exhaust, etc. I'd probably like it more.DoN_BLaZe34 wrote: ↑Sat Apr 14, 2018 12:24 pmLol that wasn't a very convincing testimony! Sounds like you like it, but you're not sure it's worth the money.