[Former_Boosted_IS]

Originally Posted by CaptainInsano

Do you find it spools quicker with meth? I just wasted 2 gallons of meth in the hills, and thought I felt a faster spool. Also I was screaming like a little girl and will never run the car without meth again.

I don't think it spools faster per say, but it boosts more so the surge is more intense.

[Former_Boosted_IS]

Originally Posted by cupertinosteve

would it be fair to say that stock turbo at 20PSI is very different than a PT6262 at 20PSI?

Uhhh, ya I would say so. 20 psi on a 6262 pushes a ton more CFM than the stock turbo at 20 psi.

[Former_Boosted_IS]

Originally Posted by Bash

Define lag! You cannot race from 2k rpm whether its on stock, Rbs or single turbos, therefore lag would not be even mentioned when racing as you would probably be around 4k rpm anyway.
When you want to show lag, you want to show normal street driving into an increase in speeds, overtaking perhaps without the need to rev the shit out of a car. Its there where you say omg this car is so slow to get to speed or after taking a ramp to highway stuff like that when you're not in spirited mode.
Starting a pull at 4k rpm and saying theres no lag from 4-7k rpm is not so much convincing.

I don't understand this? Then by that logic the M3 is a slug, an F430 is a joke when you start at 2k, and a GT2RS is a waste as well. If you think driving your car at 2k then matting it is the appropriate way to drive, then we have bigger issues. Knowing your machine and driving it in its powerband has always been the way to drive your car. This is the driver's responsibility, the cars responsibility is just to respond to the driver's input.

I will show how long it takes to reach boost from 2k and 3k in my review.

[nafoo]

Yay, more solid data instead of radio silence! Good job FBIS

[Dave W.]

"If you think driving your car at 2k then matting it is the appropriate way to drive, then we have bigger issues."

X2

[Jeff@TopGearSolutions]

Excellent post and thread. No we can put the myth to bed. I remember driving my buddies EVO X with stock frame upgraded turbo. I think it took a good 3-5 seconds before that thing spooled up. You guys are lucky to have such response with excellent power too.

Even in my z06 with no lag I still downshift so I'm in the meat of the powerband. Nobody races from 2K RPM.

[Former_Boosted_IS]

Originally Posted by Jeff@topgearsolutions

Excellent post and thread. No we can put the myth to bed. I remember driving my buddies EVO X with stock frame upgraded turbo. I think it took a good 3-5 seconds before that thing spooled up. You guys are lucky to have such response with excellent power too.

Even in my z06 with no lag I still downshift so I'm in the meat of the powerband. Nobody races from 2K RPM.

Jeff, if nothing else, the data I provide for 3k and 2k rpms should help people determine what rpms they should be driving at if they are going to run the car hard. Knowing your car is equally as important as the horsepower if you want to get the most out of your car.

[King mode]

It's funny. Even the 62mm is tiny compared to what our n54's will run in the future. I run a 60mm turbo on my audi 1.8t 8.5 compression ratio motor. That is turbo lag baby (but still a blast) Once we get some fueling options, we will put some actual big turbos on the n54 and see how the lag is for street driving. Think supra with a nice 76mm snail :-)

[Former_Boosted_IS]

Originally Posted by King mode

It's funny. Even the 62mm is tiny compared to what our n54's will run in the future. I run a 60mm turbo on my audi 1.8t 8.5 compression ratio motor. That is turbo lag baby (but still a blast) Once we get some fueling options, we will put some actual big turbos on the n54 and see how the lag is for street driving. Think supra with a nice 76mm snail :-)

I kind of think the 6262 is a great fit for this car. What we need now is to find out how high we can safely rev this engine. In my opinion, that is very important to the future of how much power we can make.

[cupertinosteve]

Originally Posted by Former_Boosted_IS

I kind of think the 6262 is a great fit for this car. What we need now is to find out how high we can safely rev this engine. In my opinion, that is very important to the future of how much power we can make.

Agreed.

Today, we've seen what the extra 1000rpm of revs between the 6MT and 6AT means ... an extra 100+ WHP.

[JamesM3M5]

I've driven a lot of automatic N54 powered cars in the last 2 weeks, and they all downshift themselves right into the 3500 RPM range even in regular D mode with even just a moderate amount of throttle.

[Zebra99]

I don't understand why everyone is having such a cow about challenging the single turbo and the twin set-ups.

They are completely different beasts and shouldn't even be compared. The single snail is much larger than the twins and different configurations.

It's obvious the twin/hybrids are not
up to the task of making 700hp, but the single is.
So I ask this; who cares if the single spools 0.5s-1s slower (not that it does). When you're making 150whp more those spool characteristics are negligible!

If you were instead comparing two LARGER hybrid twin snails against the larger 6262 snail, then maybe it would make more sense.

The final goal is what is important. Some ppl are happy with a 500whp DD others want more. These two systems are not to be compared.

[skinrock]

Originally Posted by cupertinosteve

Agreed.

Today, we've seen what the extra 1000rpm of revs between the 6MT and 6AT means ... an extra 100+ WHP.

This is a few days old, but where are you getting this? The difference between 6MT and 6AT is about 500 rpm and ~50whp.

[messi]

Originally Posted by Jeff@topgearsolutions

Excellent post and thread. No we can put the myth to bed. I remember driving my buddies EVO X with stock frame upgraded turbo. I think it took a good 3-5 seconds before that thing spooled up. You guys are lucky to have such response with excellent power too.

Even in my z06 with no lag I still downshift so I'm in the meat of the powerband. Nobody races from 2K RPM.

Yup. The lag on those turbos are the worse. Having personally owned one. Narrow power band too unless you increase rev limiter.

[Wedge1967]

Zebra99 is correct. The only people who are pushing the RB's over a single turbo upgrade are the people who have no clue about the difference in performance a single offers. If you care about the price, then you probably just need to keep your mouth shut rather than trying to justify to everyone why you think RBs are the better option rather than just coming forward and telling everyone the truth that your broke ass can't afford a single turbo upgrade.

I can tell you from personal experience that you won't care about a few hundred rpm of lag once you ride in or drive a single turbo car. I personally have been in two different single turbo cars and the power they put down is endless. You don't have the surge with a power drop to redline. You have the surge of power and it keeps pulling all the way to redline. I know for a fact that someone with RB's will say the RB's do the same, but ask yourself, how can the RB's @ 500 rwhp feel like 650 rwhp to redline? They can't! It is not possible and to think anyone who would even try to compare RB's to a Single... LOL idiots... The numbers tell the truth.

[AlterZgo]

Originally Posted by skinrock

This is a few days old, but where are you getting this? The difference between 6MT and 6AT is about 500 rpm and ~50whp.

According to this post, the difference is more like 800 RPM and about 62 hp.

The 6AT single made 573 hp at 6200 RPM whereas the 6MT single made 635 hp at about 7000 RPM.

Of course, if you overlay FBIS's 654 hp dyno, it would be a difference of 81 hp.

The amt of power these single turbo'd 335s are making - even the 573 hp AT version - is pretty incredible when you consider the fact that a stock 638hp ZR1 dynos about 535 hp to the wheels.

[skinrock]

Originally Posted by AlterZgo

According to this post, the difference is more like 800 RPM and about 62 hp.

The 6AT single made 573 hp at 6200 RPM whereas the 6MT single made 635 hp at about 7000 RPM.

Of course, if you overlay FBIS's 654 hp dyno, it would be a difference of 81 hp.

The amt of power these single turbo'd 335s are making - even the 573 hp AT version - is pretty incredible when you consider the fact that a stock 638hp ZR1 dynos about 535 hp to the wheels.

Yea, I was using that graph as a reference. By ~50 I meant 61

But you don't have to tell me. I rode in Shiv's and it was scary. At first I thought it wasn't for me, but now I'm planning to get one. Especially with the E85 news.

[OpenFlash]

Also, a RB car may peak out at 500whp@5800rpm, but by redline power is back down to 450whp or so. Anyone who doesn't feel an additional 125-200whp at redline should turn in his man card. RBs are a great value for those looking to bump up power by 50-75whp. But some people need a reality check

Shiv

[Jeff@TopGearSolutions]

Originally Posted by Former_Boosted_IS

Jeff, if nothing else, the data I provide for 3k and 2k rpms should help people determine what rpms they should be driving at if they are going to run the car hard. Knowing your car is equally as important as the horsepower if you want to get the most out of your car.

[zeenon53]

Originally Posted by shiv@vishnu

But some people need a reality check

Shiv

+1

[cupertinosteve]

Originally Posted by skinrock

This is a few days old, but where are you getting this? The difference between 6MT and 6AT is about 500 rpm and ~50whp.

Hi Skin ...

6MT - makes peak power at redline (7200rpm), last public dyno plot was 654WHP.

6AT - makes peak power near redline (6200rpm), I made 573WHP.

So I over estimated a little bit ... 1000rpm difference was a 81whp.

That is a lot more power. This is also a lot more time in gear / higher speeds before you have to shift.

[CaptainInsano]

Originally Posted by cupertinosteve

Hi Skin ...

6MT - makes peak power at redline (7200rpm), last public dyno plot was 654WHP.

6AT - makes peak power near redline (6200rpm), I made 573WHP.

So I over estimated a little bit ... 1000rpm difference was a 81whp.

That is a lot more power. This is also a lot more time in gear / higher speeds before you have to shift.

Yeah, your car must be so slow