Just popped over here after checking out the new '23 Corvette Z06 5.5L. According to published data, it's making 121 HP/L. Has about the same redline as this GT350R. I calculated the actual power demonstrated in this video, factoring 15% drivetrain losses, this 5.2L is making 107 HP/L. So I would say GM has done a pretty good job on their new engine, but it's not that far north of what Ford did with the GT350R. Just for funzies, Porsche GT3 RS 4.0L flat-6 makes 129 HP/L, but it's revving to 9,000 rpm. Annnnnnnd... a BMW S1000RR motorcycle making 220 HP/L.
558 hp crankshaft, factoring 15% drivetrain losses for RWD systems. I estimate 18% for AWD, 15% for RWD, 14% for FWD, and about 12% for chaindrive motorcycles (tossed that in for kicks).
I looked on the MBRP website and they don't have an option for the E350. Can you please give me some info on which exhaust will fit. I want one on my van!
Hey guys so I got my boomba bov installed 3 days ago and I noticed something that feels off to me and I wanted to see if I could get opinions. When I drive the car and let off the gas the car blows out the air but many times it sounds like the air keeps being pushed out silently and then just stops. Not sure if they makes sense. So the car will do the loud pshhhhh!! And then follow with a quieter air suction almost as if it's extra air trying to get out at the end. Thank you in advanced
Miguel Valdez might wanna check if the blow off valve is sealed. Couldn't been put on improperly so when pressure builds it still releases Or the blow off valve isn't closing after the release Either of those
Miguel Valdez So focus ST's like to make big induction sounds once modified, air filter and bov will let you hear the car taking in air when you go half throttle, if that's what you're referring to.
This have the muffler on it? What size is the downpipe? MBRP only offers the 4 inch downpipe on their website and I wasn't sure how much modification is needed to fit this system. Any answers would be appreciated! Thanks!
There is pretty well no powertrain in the world that is efficient enough to only lose 10%, with Porsche typically having the most efficient drivetrains. 12-15% drivetrain loss is more typical for RWD cars.
i put down 394 with headers, exhaust, x pipe, boss 302 intake manifold, jlt cold air intake, bama 91 tune and stick shift ... Stock 2014 did 355 that day... it was on a dynojet
+Brett Hall Minus using different type dynos It is all about the weather not tuning really. Tuning is simple anyone can learn to tune after a few hours learning what to look for with A/F ratios and there isn;t a magic to it. chemistry dictates what is the best tuning. Density Altitude is why people get varying dyno numbers and no two engines being the exact same, but a dyno done One day at the same shop with the same car can be 15-20 rwhp different the next day just because of Humidity being higher or lower. ntm someone living in colorado will never make the same rwhp with the same mods as someone living closer to sea level.
Great numbers can't wait to see what my 14 does now that it's broken in. So jealous of that valance. I picked up a Boss302 valance for mine though should go nice with my Mac axlebacks
I'm a lover of all fast cars no matter where it's from. And just like anyone else they want to have the fastest car to beat their buddies in. I'm looking to get a GT here in a month or so. And my friend is getting the C63 AMG. That makes 369whp. So i'm definitely glad to see the outcome of the GT :)
I am kinda disappointed. I have a completely stock 2014 gt. 3.73's. 3k miles on it. Absolutely nothing done to it (other than the windows tinted) My first run on the dyno today made 356 hp and 325 ft.lbs. My last run made 362.67 hp and 337.89 ft./lbs. It was 90+ degrees at 3 in the afternoon, but the tech says that the dyno's adjusts values to accommodate for that. It sucks I am seeing everyone on here making more.
The difference in HP could be where your located at. Do you live in an area of the country that is higher sea level, could be he gas that your running, or like you said, 90+ degree day! Anyways, 362 HP to the rear wheels is pretty impressive.
You can remove the limiter but I wouldn't recommend going much higher... even on newer 5.0's they're limited to 155(?) and it has been shown that the drive shafts can get ruined if you go too much faster over the factory limit
It's pretty cool this is one of the most popular 5.0 dyno vids. The car was bone stock except the axlebacks which aren't really good for any hp. Another buddy who had a completely stock car, even stock axle backs put down 385. Most stock m6 cars I've seen put down 375-385 on dynojet. The car isn't stock anymore. Haha.
SFBay69 not true. lol do some research. hood louvers aren't going to do jack to cool off the undersides of the pistons, which is what oil squirters do.
At this point it was 536/493. We've bumped the timing 2 degrees. Should be in the 560-570 range on a very conservative tune. Haven't put it back on the dyno yet. Probably wont till I go e85.
