Nos_GTSR
New member
I think a certain triple turboed truck needs them too.
This is a no load dyno, inertia only! The Dynojet is only capable of a 4,000lb load so we can't maintain the boost level in that RPM Range.
As far as the 'dip' goes, we will figure that out!
is this on stock turbo's ?
There should really be no issue with boost on a properly tuned set up... ask dockboy...
Wonder what the dip is from, it kinda throws off the findings of the manifolds
There is no issues with boost. And its properly tuned.
Try revving your engine to redline in neutral, doesn't make boost right? That's because there isn't any load on the engine. Same principle applies with ALL dynos. The more load the higher boost and power you'll get. Even a loaded dyno can not simulate what happens on the track so those results are even skewed.
Take the results for what they are worth.
RESULT: THE MANIFOLDS WORK VERY WELL
Maybe try a different dyno ? I know they work though.
I have no issues with boost on the dyno even with big compounds. Just because your a couple psi short from what you see on the street doesn't mean anything really....
The graphs to me just don't prove anything with that big dip and all the crazieness. Should be making peak power at 3000 rpm and your already falling off power. Its not intended to be offensive to you or the manifolds but the information isn't that great IMHO. Looking at two of the graphs the power is actually lower with the manifolds above 3000 rpm which is where most trucks rrun above during a race shift at 3500 and rpms fall to 2700 ish ... sure they look like they are making a good bit of power in the lower to mid range. Which is great for towing but that drop in.power above 3000 isn't a selling point to a guy like me
I'm not going to further derail but I have to.call things like I.see it at times.
I have no issues with boost on the dyno even with big compounds. Just because your a couple psi short from what you see on the street doesn't mean anything really....
The graphs to me just don't prove anything with that big dip and all the crazieness. Should be making peak power at 3000 rpm and your already falling off power. Its not intended to be offensive to you or the manifolds but the information isn't that great IMHO. Looking at two of the graphs the power is actually lower with the manifolds above 3000 rpm which is where most trucks rrun above during a race shift at 3500 and rpms fall to 2700 ish ... sure they look like they are making a good bit of power in the lower to mid range. Which is great for towing but that drop in.power above 3000 isn't a selling point to a guy like me
I'm not going to further derail but I have to.call things like I.see it at times.
Its pretty obvious what the "dip" in the graph is, and I dont believe its an issue with the dyno or the truck... Power falls off sooner with those manifolds. I agree that they work and they make awesome peak power numbers. I would be very interested in seeing what those manifolds would do on a truck thats runs out to say 5,000 rpms. It would seem that there would be more exhaust flow out at those rpms, making these manifolds even more useful. Thats what didn't make sense to me, so I pointed it out.Yes, this truck has stock turbo's with 110 hp nozzles. We've had this dyno for 12 years, trying to figure out the dip. What's important is looking at the graph before that and the gain.
Theres no way to take the results for anything more or less than that.... they are overlayed on a graph of stock manifolds. I compared the two, and just noticed that power started to drop off and then the run ended. Im not arguing that they dont make a ton more peak power, but I'm not convinced that track times are going to reflect this gain. Again, awesome product and sweet that a manifold makes numbers like that.There is no issues with boost. And its properly tuned.
Try revving your engine to redline in neutral, doesn't make boost right? That's because there isn't any load on the engine. Same principle applies with ALL dynos. The more load the higher boost and power you'll get. Even a loaded dyno can not simulate what happens on the track so those results are even skewed.
Take the results for what they are worth.
RESULT: THE MANIFOLDS WORK VERY WELL
I have no issues with boost on the dyno even with big compounds. Just because your a couple psi short from what you see on the street doesn't mean anything really....
The graphs to me just don't prove anything with that big dip and all the crazieness. Should be making peak power at 3000 rpm and your already falling off power. Its not intended to be offensive to you or the manifolds but the information isn't that great IMHO. Looking at two of the graphs the power is actually lower with the manifolds above 3000 rpm which is where most trucks rrun above during a race shift at 3500 and rpms fall to 2700 ish ... sure they look like they are making a good bit of power in the lower to mid range. Which is great for towing but that drop in.power above 3000 isn't a selling point to a guy like me
I'm not going to further derail but I have to.call things like I.see it at times.
Same principle applies with ALL dynos. The more load the higher boost and power you'll get.
You don't know what you are talking about:fustrate:
More boost DOES NOT mean more power. If you can't tune and adjust components for power on a Dynojet because you are worried about boost...you have no business tuningoke:
All load dynos due is mask bad tuning and bad setups.
I make 1000 hp on a Dynojet with 20 psi less boost than at the track. But my times and speeds verify that it does make that 1000 hp.
More boot = more torque. What are your times at the track? These manifolds will most likely pick up a second on your ET. I'd lay money on it actually!
More boot = more torque. What are your times at the track? These manifolds will most likely pick up a second on your ET. I'd lay money on it actually!