[BrianMN]

Does anyone know that mazdaspeed6 guy's prior/baseline info? Even at 15psi, there should be a significant delta in power and torque.

[tmdb335]

These turbos def pull much harder up top than the stockers. I am very happy with how these turbos perform.

[Nor_Cal_335i]

Originally Posted by FlyLow335i

While 36* is substantial you are still talking about IATs in the 60s which for a turbo motor is conducive to good results.

While 64F is good dyno weather, 26F is BETTER and will make MORE power.

As I said previously, if correction was used, the AWD turbos would have +6% more power or 381hp, which is a 30hp gains, which is great for a upgraded turbo at the same boost level.

Originally Posted by shockin330i

You guys need to up the boost.

+1

[Slops]

Originally Posted by creaminz

Why dynoing at 15psi with upgraded turbos? Whole point of getting upgraded turbos are so we can run higher boost and wont choke like stockers, no? Im sorry Mike, my car is still in the Shop. I heard EAS is installing dyno in thier shop soon. I will dyno this thing as soon as i can. All i wanted was car doesnt die at higher rpm range, i was never after the higher horsepower numbers. And real life comparison showed me these turbos are far superior than stockers.

In my mind the same psi with upgraded turbos would yield a much better dyno run where it would show how fast the new ones spool, through logs how much cooler the air is and hence how much more efficient they are at the same psi. You need to keep some parameters the same to compare the turbo and keeping the same psi should be a really good start.

[shockin330i]

Originally Posted by Sloppy

In my mind the same psi with upgraded turbos would yield a much better dyno run where it would show how fast the new ones spool, through logs how much cooler the air is and hence how much more efficient they are at the same psi. You need to keep some parameters the same to compare the turbo and keeping the same psi should be a really good start.

But the turbo housing stayed th same. All that was changed was the pinwheel. So at the same psi 5h3y should be moving about he same air...

[jpsimon]

I saw the same exact results with my EPL turbos (same thing as these AWD ones). At the same boost pressure they didn't make any more power, but they were able to handle more boost than the stockers overall with nicer timing curves and that's when they of course did make more power. I'm running 17-17.5psi daily on pump 93 only. Someday down the road I plan on upgrading again, but when I needed new turbos last year the "semi-upgraded" ones such as these were the only thing available.

Moral of the story is: Overboost, turn up the boost to take advantage of these semi-upgraded turbos.

[Slops]

Originally Posted by shockin330i

But the turbo housing stayed th same. All that was changed was the pinwheel. So at the same psi 5h3y should be moving about he same air...

Hmmm wonder why I thought they were actually upgraded turbos.. j/k!

[mazdaspeed6]

Originally Posted by BrianMN

Does anyone know that mazdaspeed6 guy's prior/baseline info? Even at 15psi, there should be a significant delta in power and torque.

348/385... My tq was lower this time because the dyno operator didn't start at 2000rpm

[Overboost]

There's always two sides to a story... By the way the dyno I posted was at the same psi as the stock turbos (15psi) and since Mike doesn't change the size of the housing, You shouldn't expect them to create more horsepower at a boost level the factory turbos are quite happy with. Mike that was my fault for thinking that others would have realized that in the same housing and same psi that any increase in Hp must be because the turbo's lower IATs. I also purposely stated that there was a 38F delta in temperature with no correction to show that these turbos do infact perform better. Sorry for trying to deal with this in a scientific manner when it seems like most people here would not understand. If i had done the dyno at 17.5psi as advised by jpsimon who has epl turbos, then it would have been a very unfair comparison to the stock turbos. I doubt any stock turbo car running that much boost on stock turbos without meth can keep up. Clap i'm sure u probably wouldnt recommend that much boost on just pump so i'll check my timing logs as soon as midterms are over lol (spending too much time in the library) but its night and day difference especially 3rd and 4th gear.

[Jeff@TopGearSolutions]

Originally Posted by Overboost

There's always two sides to a story... By the way the dyno I posted was at the same psi as the stock turbos (15psi) and since Mike doesn't change the size of the housing, You shouldn't expect them to create more horsepower at a boost level the factory turbos are quite happy with. Mike that was my fault for thinking that others would have realized that in the same housing and same psi that any increase in Hp must be because the turbo's lower IATs. I also purposely stated that there was a 38F delta in temperature with no correction to show that these turbos do infact perform better. Sorry for trying to deal with this in a scientific manner when it seems like most people here would not understand. If i had done the dyno at 17.5psi as advised by jpsimon who has epl turbos, then it would have been a very unfair comparison to the stock turbos. I doubt any stock turbo car running that much boost on stock turbos without meth can keep up. Clap i'm sure u probably wouldnt recommend that much boost on just pump so i'll check my timing logs as soon as midterms are over lol (spending too much time in the library) but its night and day difference especially 3rd and 4th gear.

Theoretically on a more efficient turbo, or bigger, depending on the scenario you will find more HP with the same amount of boost. That is because there is more CFM produced.

With clipped turbo's generally you wont find as much of an increase at the same boost level if you are in an efficient range of stock turbo's.

All depends on the scenario but there should be atleast some increase. 20-25WHP would have been fair IMO.

[BrianMN]

Originally Posted by JPSlick

Theoretically on a more efficient turbo, or bigger, depending on the scenario you will find more HP with the same amount of boost. That is because there is more CFM produced.

With clipped turbo's generally you wont find as much of an increase at the same boost level if you are in an efficient range of stock turbo's.

All depends on the scenario but there should be atleast some increase. 20-25WHP would have been fair IMO.

Definitely expected to see more of a power increase at the same psi. I agree 20-25 sounds right. Hope to see some 17psi numbers soon!

[Overboost]

Originally Posted by JPSlick

Theoretically on a more efficient turbo, or bigger, depending on the scenario you will find more HP with the same amount of boost. That is because there is more CFM produced.

With clipped turbo's generally you wont find as much of an increase at the same boost level if you are in an efficient range of stock turbo's.

All depends on the scenario but there should be atleast some increase. 20-25WHP would have been fair IMO.

If a correction factor for temperature was applied to the dyno's you probably would have seen that 20-25whp but the dyno operator never uses correction factors. Plus the turbo housing is so small, the increase in size is only a few mm so be fair guys its not like i upgraded to twin gt35s lol

[Jeff@TopGearSolutions]

Originally Posted by Overboost

If a correction factor for temperature was applied to the dyno's you probably would have seen that 20-25whp but the dyno operator never uses correction factors. Plus the turbo housing is so small, the increase in size is only a few mm so be fair guys its not like i upgraded to twin gt35s lol

I wasnt for or against, I was just stating the theory in a more efficient turbo. It didnt lose power.

[cwg]

Originally Posted by AlterZgo

If this isn't about turbos, why are you posting this in this thread? You have every right to question and post whatever you want, but how about if you start a new thread. What you are talking about is completely unrelated to whether or not AWD Motorsports can deliver a set of upgraded N54 turbos that outperform stock.

Well said. Start your own post

[Nor_Cal_335i]

Originally Posted by JPSlick

All depends on the scenario but there should be atleast some increase. 20-25WHP would have been fair IMO.

Originally Posted by BrianMN

Definitely expected to see more of a power increase at the same psi. I agree 20-25 sounds right. Hope to see some 17psi numbers soon!

Originally Posted by Overboost

If a correction factor for temperature was applied to the dyno's you probably would have seen that 20-25whp but the dyno operator never uses correction factors.

So I did some more weather correction math. Based on my math, these would have been the numbers had correction been used.

Stock turbos = 315

AWD = 345

So a gain of 30whp, which is good for upgraded turbos at the same PSI.

[creaminz]

Originally Posted by Nor_Cal_335i

Like I said previously....

You sure did, people just don't listen! +6% (25-30hp over stockers)...that sounds fair for $2200 turbos no?

[BrianMN]

Originally Posted by creaminz

You sure did, people just don't listen! +6% (25-30hp over stockers)...that sounds fair for $2200 turbos no?

That's legit. I forgot they were uncorrected....even though some people may argue against the correction factors.

[DaFish]

How much boost can you do on this motor without rebuilding the other stock components? IE: Bottom end, head .... how much can the stock clutch take?

These are really nice numbers but something has to give sooner or later as you keep putting HP in. What is the first to go usually?

[enrita]

Originally Posted by DaFish

How much boost can you do on this motor without rebuilding the other stock components? IE: Bottom end, head .... how much can the stock clutch take?

These are really nice numbers but something has to give sooner or later as you keep putting HP in. What is the first to go usually?

nobody knows becuase the limit right now is fueling .

[DaFish]

Originally Posted by enrita

nobody knows becuase the limit right now is fueling .

That is amazing that this stock motor is so buttoned down that it can handle 200hp and almost 200 ft/lbs over stock and not blow itself up !

This is just an amazing accomplishment.

Has anybody taken these new turbos on the track and flogged the car - this is where it would break..... Mike, anybody reported this - how is the reliablilty?

[enrita]

Originally Posted by DaFish

That is amazing that this stock motor is so buttoned down that it can handle 200hp and almost 200 ft/lbs over stock and not blow itself up !

This is just an amazing accomplishment.

Has anybody taken these new turbos on the track and flogged the car - this is where it would break..... Mike, anybody reported this - how is the reliablilty?

you probably want to run low boost on the track (i dont mean the dragstrip by track) with some meth/water to cool things down. Power is enough even on low boost .

[Jeff@TopGearSolutions]

Originally Posted by Nor_Cal_335i

So I did some more weather correction math. Based on my math, these would have been the numbers had correction been used.

Stock turbos = 315

AWD = 345

So a gain of 30whp, which is good for upgraded turbos at the same PSI.

Not a big fan of correction factors at any level simply cause its not realistic. Not looking for glory dyno numbers, just hard data.

For instance, I ran my last car on the dyno, in 90+ degree temps, with about that much humidity (90%). I didnt put any correction factors on WHP numbers.

After all its just a number. Do I know it makes more power in cold weather with less humidity, of course. But, I rather low ball the number anyway.

For your sake, I hope it works out for you and you enjoy them.